: материалы временных коллективов / L. V. Mukhortova // Boreal forests in a changing world: challenges and needs for action: Proceedings of the International conference August 15-21 2011, Krasnoyarsk, Russia. - Krasnoyarsk : V.N. Sukachev Institute of forest SB RAS, 2011. - С. 333-337. - Библиогр. в конце ст.
Аннотация: To assess the role of coarse woody debris (CWD) in carbon and nutrient cycling in forest ecosystems of Central Siberia, we investigated changes in carbon, nitrogen and nutrients of differently decomposed CWD samples from the forest tundra and northern, middle, and southern taiga of Central Siberia. At northern latitudes CWD released larger amount of carbon and nutrients during decomposition compared with southern ecosystems, which were characterized nutrient immobilization and smaller carbon losses from CWD.
Держатели документа:
Институт леса им. В.Н. Сукачева Сибирского отделения Российской академии наук : 660036, Красноярск, Академгородок 50/28
Доп.точки доступа:
Мухортова, Людмила Владимировна
Труды сотрудников ИЛ им. В.Н. Сукачева СО РАН
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Найдено документов в текущей БД: 15
Influence of drying of the samples on the transformation of nitrogen and carbon compounds in mountain-meadow alpine soils
/ M. I. Makarov [et al.] // Eurasian Soil Sci. - 2013. - Vol. 46, Is. 7. - P778-787, DOI 10.1134/S1064229313070053. - Cited References: 32. - This study was supported by the Russian Foundation for Basic Research (project no. 10-04-00780).
. - 10. - ISSN 1064-2293
РУБ Soil Science
Аннотация: The drying of samples of mountain-meadow soils characterized by their permanently high moisture under natural conditions fundamentally changes the concentrations of the labile nitrogen and carbon compounds, as well as the patterns of their microbial transformation. When the soil samples are dried, a four- to fivefold increase in the content of the extractable organic nitrogen compounds, carbon compounds, and inorganic nitrogen compounds is observed, while the content of nitrogen and carbon of the microbial biomass decreases by two-three times. The rewetting of the dried soil launches the process of the replenishment of the nitrogen and carbon reserves in the microbial biomass. However, even after two weeks of incubation, their values were 1.5-2 times lower than the initial values typical of the natural soil. The restoration of the microbial community in the samples of the previously dried soils occurs in the absence of a deficiency of labile organic compounds and is accompanied by their active mineralization and the low uptake of ammonium nitrogen by the microorganisms.
Полный текст,
WOS,
Scopus
Держатели документа:
Makarov, M. I.
Mulyukova, O. S.
Malysheva, T. I.] Moscow MV Lomonosov State Univ, Fac Soil Sci, Moscow 119992, Russia
[Menyailo, O. V.] Russian Acad Sci, Siberian Branch, Sukachev Inst Forestry, Krasnoyarsk, Russia
Доп.точки доступа:
Makarov, M.I.; Mulyukova, O.S.; Malysheva, T.I.; Menyailo, O.V.
Рубрики:
EXTRACTION METHOD
FREEZE-THAW
MINERALIZATION
TUNDRA
ECOSYSTEMS
DYNAMICS
PLANTS
CAUCASUS
Кл.слова (ненормированные):
mountain-meadow soils -- carbon -- nitrogen -- microbial biomass -- nitrification -- mineralization -- immobilization
EXTRACTION METHOD
FREEZE-THAW
MINERALIZATION
TUNDRA
ECOSYSTEMS
DYNAMICS
PLANTS
CAUCASUS
Кл.слова (ненормированные):
mountain-meadow soils -- carbon -- nitrogen -- microbial biomass -- nitrification -- mineralization -- immobilization
Аннотация: The drying of samples of mountain-meadow soils characterized by their permanently high moisture under natural conditions fundamentally changes the concentrations of the labile nitrogen and carbon compounds, as well as the patterns of their microbial transformation. When the soil samples are dried, a four- to fivefold increase in the content of the extractable organic nitrogen compounds, carbon compounds, and inorganic nitrogen compounds is observed, while the content of nitrogen and carbon of the microbial biomass decreases by two-three times. The rewetting of the dried soil launches the process of the replenishment of the nitrogen and carbon reserves in the microbial biomass. However, even after two weeks of incubation, their values were 1.5-2 times lower than the initial values typical of the natural soil. The restoration of the microbial community in the samples of the previously dried soils occurs in the absence of a deficiency of labile organic compounds and is accompanied by their active mineralization and the low uptake of ammonium nitrogen by the microorganisms.
Полный текст,
WOS,
Scopus
Держатели документа:
Makarov, M. I.
Mulyukova, O. S.
Malysheva, T. I.] Moscow MV Lomonosov State Univ, Fac Soil Sci, Moscow 119992, Russia
[Menyailo, O. V.] Russian Acad Sci, Siberian Branch, Sukachev Inst Forestry, Krasnoyarsk, Russia
Доп.точки доступа:
Makarov, M.I.; Mulyukova, O.S.; Malysheva, T.I.; Menyailo, O.V.
Nitrogen pool in northern-taiga larch forests of central Siberia
[Text] / L. S. Shugalei, E. F. Vedrova // Biol. Bull. - 2004. - Vol. 31, Is. 2. - P200-208, DOI 10.1023/B:BIBU.0000022477.99224.fb. - Cited References: 20
. - 9. - ISSN 1062-3590
РУБ Biology
Аннотация: The pools of nitrogen in different blocks of forest ecosystems and its cycle in the soil are considered. It is shown that the bulk of nitrogen concentrates in the soil and dead organic matter (necromass) of an ecosystem. The nitrogen pool of forest litters and soils consists by 83-93% of the inert compounds that cannot be involved in the biological cycle. Mineralization of organic nitrogen-containing substances in the litters and soils usually yields ammonium as an end product. The amount of nitrogen mineralized over the growing season is partially expended for annual plant increment (30-65%) and immobilization (12-17%), with its large proportion being found in the soil.
Полный текст,
WOS,
Scopus,
Scopus
Держатели документа:
Russian Acad Sci, Sukachev Inst Forest, Siberian Div, Krasnoyarsk 660036, Russia
Доп.точки доступа:
Shugalei, L.S.; Vedrova, E.F.
Аннотация: The pools of nitrogen in different blocks of forest ecosystems and its cycle in the soil are considered. It is shown that the bulk of nitrogen concentrates in the soil and dead organic matter (necromass) of an ecosystem. The nitrogen pool of forest litters and soils consists by 83-93% of the inert compounds that cannot be involved in the biological cycle. Mineralization of organic nitrogen-containing substances in the litters and soils usually yields ammonium as an end product. The amount of nitrogen mineralized over the growing season is partially expended for annual plant increment (30-65%) and immobilization (12-17%), with its large proportion being found in the soil.
Полный текст,
WOS,
Scopus,
Scopus
Держатели документа:
Russian Acad Sci, Sukachev Inst Forest, Siberian Div, Krasnoyarsk 660036, Russia
Доп.точки доступа:
Shugalei, L.S.; Vedrova, E.F.
Denitrification and C, N mineralization as function of temperature and moisture potential in organic and mineral horizons of an acid spruce forest soil
[Text] / O. V. Menyailo, B. . Huwe // J. Plant Nutr. Soil Sci. - 1999. - Vol. 162, Is. 5. - P527-531, DOI 10.1002/(SICI)1522-2624(199910)162:5527::AID-JPLN5273.3.CO;2-R. - Cited References: 14
. - 5. - ISSN 1436-8730
РУБ Agronomy + Plant Sciences + Soil Science
Аннотация: The influence of temperature (T) and water potential (psi) on the denitrification potential, C and N mineralization and nitrification were studied in organic and mineral horizons of an acid spruce forest soil. The amount of N2O emitted from organic soil was 10 times larger than from the mineral one. The maximum of N2O emission was in both soils at the highest water potential 0 MPa and at 20 degrees C. CO2 production in the organic soil was 2 times higher than in mineral soil. Net ammonification in organic soil was negative for most of the T-psi variations, while in mineral soil it was positive. Net nitrification in organic soil was negative only at the maximum water potential and temperature (0 MPa, 28 degrees C). The highest rate was between 0 and -0.3 MPa and between 20 and 28 degrees C. In mineral soil NO3- accumulated at all T-psi variations with a maximum at 20 degrees C and -0.3 MPa. We concluded that in organic soil the immobilization of NH4+ is the dominant process in the N-cycling. Nevertheless, decreasing of total N mineralized at 0 MPa and 20-28 degrees C can be explained by denitrification.
Полный текст,
WOS,
Scopus
Держатели документа:
Univ Bayreuth, Dept Soil Phys, D-95440 Bayreuth, Germany
RAS, SB, Inst Forest, Krasnoyarsk 660036, Russia
Доп.точки доступа:
Menyailo, O.V.; Huwe, B...
Рубрики:
NITROGEN DEPOSITION
NITRIFICATION
EMISSION
Кл.слова (ненормированные):
denitrification -- forest soils -- N-immobilization -- net N-mineralization -- temperature -- water potential
NITROGEN DEPOSITION
NITRIFICATION
EMISSION
Кл.слова (ненормированные):
denitrification -- forest soils -- N-immobilization -- net N-mineralization -- temperature -- water potential
Аннотация: The influence of temperature (T) and water potential (psi) on the denitrification potential, C and N mineralization and nitrification were studied in organic and mineral horizons of an acid spruce forest soil. The amount of N2O emitted from organic soil was 10 times larger than from the mineral one. The maximum of N2O emission was in both soils at the highest water potential 0 MPa and at 20 degrees C. CO2 production in the organic soil was 2 times higher than in mineral soil. Net ammonification in organic soil was negative for most of the T-psi variations, while in mineral soil it was positive. Net nitrification in organic soil was negative only at the maximum water potential and temperature (0 MPa, 28 degrees C). The highest rate was between 0 and -0.3 MPa and between 20 and 28 degrees C. In mineral soil NO3- accumulated at all T-psi variations with a maximum at 20 degrees C and -0.3 MPa. We concluded that in organic soil the immobilization of NH4+ is the dominant process in the N-cycling. Nevertheless, decreasing of total N mineralized at 0 MPa and 20-28 degrees C can be explained by denitrification.
Полный текст,
WOS,
Scopus
Держатели документа:
Univ Bayreuth, Dept Soil Phys, D-95440 Bayreuth, Germany
RAS, SB, Inst Forest, Krasnoyarsk 660036, Russia
Доп.точки доступа:
Menyailo, O.V.; Huwe, B...
Carbon and nutrient release during decomposition of coarse woody debris in forest ecosystems of Central Siberia
/ L. V. Mukhortova // Folia Forestalia Polonica, Series A. - 2012. - Vol. 54, Is. 2. - P71-83
. - ISSN 0071-6677
Кл.слова (ненормированные):
Carbon and nutrients -- Central and southern taiga -- Coarse woody debris -- Decomposition -- Forest ecosystems -- Forest-tundra -- Northern -- bioaccumulation -- biogeochemical cycle -- biomass -- boreal forest -- carbon cycle -- coarse woody debris -- coniferous tree -- decomposition -- forest ecosystem -- forest soil -- immobilization -- litter -- nutrient enrichment -- soil organic matter -- tundra -- Siberia
Аннотация: Coarse woody debris (CWD) is often overlooked in studies on the decomposition of organic matter in forest soils. To assess the role of CWD in carbon and nutrient cycling in these forest ecosystems, we investigated changes in carbon and nutrients of differently decomposed CWD samples from the forest tundra and northern, middle, and southern taiga of Central Siberia. Samples included live wood, snags, logs at the classes I, II, and III of decomposition, and fragments of decomposed wood from forest litter. At northern latitudes CWD released a larger amount of carbon and nutrients during decomposition compared with southern ecosystems, which were characterized by nutrient immobilization and smaller carbon losses from CWD. We conclude that CWD in northern and southern ecosystems probably plays a different role in biogeochemical cycles. Logs of pine, spruce, and fir in southern ecosystems accumulate significant amount of nutrients in their biomass during decomposition and create relatively nutrient-rich microsites. In contrast, CWD in northern ecosystems appears to be an important source of carbon and nutrient release to the soil solution.
Scopus
Держатели документа:
V.N. Sukachev Institute of Forest, Siberian Branch, Russian Academy of Sciences, Akademgorodok, 660036, Krasnoyarsk, Russian Federation
Доп.точки доступа:
Mukhortova, L.V.
Кл.слова (ненормированные):
Carbon and nutrients -- Central and southern taiga -- Coarse woody debris -- Decomposition -- Forest ecosystems -- Forest-tundra -- Northern -- bioaccumulation -- biogeochemical cycle -- biomass -- boreal forest -- carbon cycle -- coarse woody debris -- coniferous tree -- decomposition -- forest ecosystem -- forest soil -- immobilization -- litter -- nutrient enrichment -- soil organic matter -- tundra -- Siberia
Аннотация: Coarse woody debris (CWD) is often overlooked in studies on the decomposition of organic matter in forest soils. To assess the role of CWD in carbon and nutrient cycling in these forest ecosystems, we investigated changes in carbon and nutrients of differently decomposed CWD samples from the forest tundra and northern, middle, and southern taiga of Central Siberia. Samples included live wood, snags, logs at the classes I, II, and III of decomposition, and fragments of decomposed wood from forest litter. At northern latitudes CWD released a larger amount of carbon and nutrients during decomposition compared with southern ecosystems, which were characterized by nutrient immobilization and smaller carbon losses from CWD. We conclude that CWD in northern and southern ecosystems probably plays a different role in biogeochemical cycles. Logs of pine, spruce, and fir in southern ecosystems accumulate significant amount of nutrients in their biomass during decomposition and create relatively nutrient-rich microsites. In contrast, CWD in northern ecosystems appears to be an important source of carbon and nutrient release to the soil solution.
Scopus
Держатели документа:
V.N. Sukachev Institute of Forest, Siberian Branch, Russian Academy of Sciences, Akademgorodok, 660036, Krasnoyarsk, Russian Federation
Доп.точки доступа:
Mukhortova, L.V.
Seasonal development dynamics of microbocenoses and complexes of invertebrates on overburden heaps of the Borodinskoye brown-coal mine (KATEK)
/ A. V. Bogorodskaya [et al.] // Geography and Natural Resources. - 2010. - Vol. 31, Is. 4. - P330-338, DOI 10.1016/j.gnr.2010.11.005
. - ISSN 1875-3728
Кл.слова (ненормированные):
Ecologo-trophic groups of microorganisms -- Soil microarthropods -- Technogenic heaps -- coal mine -- humus -- immobilization -- invertebrate -- lignite -- microbial activity -- mineralization -- overburden -- reforestation -- seasonal variation -- seasonality -- soil biota -- species diversity -- Borodinsky Mine -- Krasnoyarsk [Russian Federation] -- Russian Federation -- Invertebrata
Аннотация: We have investigated the seasonal-dynamics parameters of functioning of microbocenoses and invertebrate complexes on overburden heaps of different ages as well as the recultivation technology for of the Borodinskoye brown-coal mine. The 20-year-old overburden heap with typical natural reforestation and formation of a coarse-humus horizon was characterized by the largest balance of microbiological processes of organic matter destruction, and by high numbers and diversity of microarthropods. The youngest heaps are characterized by an unbalance between organic matter mineralization-immobilization processes and predominance of pioneer invertebrate groups in the community. В© 2010.
Scopus
Держатели документа:
Institute of Forest SB RAS, Krasnoyarsk, Russian Federation
Доп.точки доступа:
Bogorodskaya, A.V.; Krasnoshchekova, E.N.; Trefilova, O.V.; Shishikin, A.S.
Кл.слова (ненормированные):
Ecologo-trophic groups of microorganisms -- Soil microarthropods -- Technogenic heaps -- coal mine -- humus -- immobilization -- invertebrate -- lignite -- microbial activity -- mineralization -- overburden -- reforestation -- seasonal variation -- seasonality -- soil biota -- species diversity -- Borodinsky Mine -- Krasnoyarsk [Russian Federation] -- Russian Federation -- Invertebrata
Аннотация: We have investigated the seasonal-dynamics parameters of functioning of microbocenoses and invertebrate complexes on overburden heaps of different ages as well as the recultivation technology for of the Borodinskoye brown-coal mine. The 20-year-old overburden heap with typical natural reforestation and formation of a coarse-humus horizon was characterized by the largest balance of microbiological processes of organic matter destruction, and by high numbers and diversity of microarthropods. The youngest heaps are characterized by an unbalance between organic matter mineralization-immobilization processes and predominance of pioneer invertebrate groups in the community. В© 2010.
Scopus
Держатели документа:
Institute of Forest SB RAS, Krasnoyarsk, Russian Federation
Доп.точки доступа:
Bogorodskaya, A.V.; Krasnoshchekova, E.N.; Trefilova, O.V.; Shishikin, A.S.
Transformation of microbial cenoses in soils of light coniferous forests caused by cuttings and fires in the Lower Angara River basin
[Text] / A. V. Bogorodskaya, E. A. Kukavskaya, G. A. Ivanova // Eurasian Soil Science. - 2014. - Vol. 47, Is. 3. - P194-202, DOI 10.1134/S1064229314030028
. - ISSN 1064-2293. - ISSN 1556-195X
Рубрики:
Geotechnical Engineering & Applied Earth Sciences
Кл.слова (ненормированные):
surface fires -- felled areas -- microbial biomass -- basal respiration -- number of heterotrophic microorganisms
Аннотация: The influence of surface fires and cutting on the quantitative and functional parameters of microbial cenoses in the soils of light coniferous forests in the Lower Angara River basin was studied. In the litters of soddy-podzolic soils under pine forests, the microbial biomass was 4080–4700 μg C/g; the basal respiration was 17.00–20.32 μg C-CO2/g/h; and the qCO2, 4.17–4.33 μg C-CO2/mg Cmic/h. In the humus-accumulative horizon, these values were 880–1160 μg C/g, 2.48–4.12 μg C-CO2/g/h, and 2.83–3.55 C-CO2/mg Cmic/h, respectively. In the litter of the one-year-old felled area, the content of microbial biomass carbon was by two times lower; in the litter of burned plots, it was by 60–70% lower than in the litter of the control area. The intensity of the microbial respiration did not change proportionally to the microbial biomass content, which resulted in an imbalance between the processes of the organic matter mineralization-immobilization towards a release of CO2 as evidenced by the increase of the qCO2 values by 2–4 times. In the five-year-old felled area, at the stage of restoring the herbaceous vegetation, a tendency towards the stabilization of the destructive microbiological processes was revealed. In the felled areas, the high number of heterotrophic microorganisms, the reduced oligotrophy of the soil organic horizons, and the more intense microbiological mineralization of the organic matter were observed. The surface fires in the felled areas and forests significantly affected the structure and the number of ecological-trophic groups of microorganisms in the litters, the humus-accumulative horizons, and in the upper mineral soil layers. The maximal structural and functional disturbance in the soil microbial complex was found in the logged areas affected by fires.
Scopus,
Полный текст,
WOS,
Scopus
Держатели документа:
Sukachev Institute of Forest, Siberian Branch, Russian Academy of Sciences, Akademgorodok 50/28, Krasnoyarsk, 660036, Russia
ИЛ СО РАН
Доп.точки доступа:
Bogorodskaya, A. V.; Kukavskaya, E. A.; Ivanova, G. A.
Рубрики:
Geotechnical Engineering & Applied Earth Sciences
Кл.слова (ненормированные):
surface fires -- felled areas -- microbial biomass -- basal respiration -- number of heterotrophic microorganisms
Аннотация: The influence of surface fires and cutting on the quantitative and functional parameters of microbial cenoses in the soils of light coniferous forests in the Lower Angara River basin was studied. In the litters of soddy-podzolic soils under pine forests, the microbial biomass was 4080–4700 μg C/g; the basal respiration was 17.00–20.32 μg C-CO2/g/h; and the qCO2, 4.17–4.33 μg C-CO2/mg Cmic/h. In the humus-accumulative horizon, these values were 880–1160 μg C/g, 2.48–4.12 μg C-CO2/g/h, and 2.83–3.55 C-CO2/mg Cmic/h, respectively. In the litter of the one-year-old felled area, the content of microbial biomass carbon was by two times lower; in the litter of burned plots, it was by 60–70% lower than in the litter of the control area. The intensity of the microbial respiration did not change proportionally to the microbial biomass content, which resulted in an imbalance between the processes of the organic matter mineralization-immobilization towards a release of CO2 as evidenced by the increase of the qCO2 values by 2–4 times. In the five-year-old felled area, at the stage of restoring the herbaceous vegetation, a tendency towards the stabilization of the destructive microbiological processes was revealed. In the felled areas, the high number of heterotrophic microorganisms, the reduced oligotrophy of the soil organic horizons, and the more intense microbiological mineralization of the organic matter were observed. The surface fires in the felled areas and forests significantly affected the structure and the number of ecological-trophic groups of microorganisms in the litters, the humus-accumulative horizons, and in the upper mineral soil layers. The maximal structural and functional disturbance in the soil microbial complex was found in the logged areas affected by fires.
Scopus,
Полный текст,
WOS,
Scopus
Держатели документа:
Sukachev Institute of Forest, Siberian Branch, Russian Academy of Sciences, Akademgorodok 50/28, Krasnoyarsk, 660036, Russia
ИЛ СО РАН
Доп.точки доступа:
Bogorodskaya, A. V.; Kukavskaya, E. A.; Ivanova, G. A.
Converting leguminous green manure into biochar: Changes in chemical composition and C and N mineralization
/ C. -P. Chen [et al.] // Geoderma. - 2014. - Vol. 232-234. - P581-588, DOI 10.1016/j.geoderma.2014.06.021
. - ISSN 0016-7061
Кл.слова (ненормированные):
Biochar -- Carbon sequestration -- Green manure -- Nitrogen mineralization -- Nuclear magnetic resonance -- Aromatic compounds -- Biomass -- Forestry -- Nitrogen -- Nuclear magnetic resonance -- Nuclear magnetic resonance spectroscopy -- Soils -- Aromatic structures -- Bio chars -- C and N mineralization -- Carbon sequestration -- Chemical compositions -- Fine-structure spectroscopy -- Green manures -- Nitrogen mineralization -- Manures
Аннотация: Leguminous green manure is an important source of nitrogen (N) and carbon (C) in cropping systems. The fast turnover of leguminous green manure enables it to release N quickly, but limits its effectiveness in maintaining soil organic C content. Converting leguminous green manure into biochar facilitates its use as a soil amendment. In this study, we assessed how the conversion of leguminous green manure (Sesbania roxburghii) into biochar altered its chemical composition and subsequent C and N mineralization. Biomass was charred along a temperature gradient from 200 to 500. °C. Using nuclear magnetic resonance and near-edge X-ray adsorption fine structure spectroscopy, we found that both C and N became enriched in aromatic and heterocyclic aromatic structures in biochar, and this structural change led to a reduction in C and N mineralization rates. The mineralized C decreased from 32.7% of the added C of raw biomass to <. 0.5% of that of biochar at charring temperatures above 400. °C. N release shifted from N mineralization in raw biomass to N immobilization at charring temperatures at 500. °C. As such, soil amended with biochar produced at charring temperatures exceeding 400. °C demonstrated a 25% decrease in dry shoot biomass compared with unamended soil. The results indicated that the C stability of leguminous green manure can be achieved by converting raw material into biochar, but that the charring process may limit it to providing N. © 2014 Elsevier B.V.
Scopus,
Полный текст,
WOS
Держатели документа:
School of Forestry and Resource Conservation, National Taiwan University, Taipei 106, Taiwan
Department of Agronomy, National Chung Hsing University, Taichung 500, Taiwan
Department of Agricultural Chemistry, National Taiwan University, Taipei 106, Taiwan
Institute of Forest SB RAS, Krasnoyarsk 660036, Russian Federation
National Synchrotron Radiation Research Center, Hsinchu 300, Taiwan
Доп.точки доступа:
Chen, C.-P.; Cheng, C.-H.; Huang, Y.-H.; Chen, C.-T.; Lai, C.-M.; Menyailo, O.V.; Fan, L.-J.; Yang, Y.-W.
Кл.слова (ненормированные):
Biochar -- Carbon sequestration -- Green manure -- Nitrogen mineralization -- Nuclear magnetic resonance -- Aromatic compounds -- Biomass -- Forestry -- Nitrogen -- Nuclear magnetic resonance -- Nuclear magnetic resonance spectroscopy -- Soils -- Aromatic structures -- Bio chars -- C and N mineralization -- Carbon sequestration -- Chemical compositions -- Fine-structure spectroscopy -- Green manures -- Nitrogen mineralization -- Manures
Аннотация: Leguminous green manure is an important source of nitrogen (N) and carbon (C) in cropping systems. The fast turnover of leguminous green manure enables it to release N quickly, but limits its effectiveness in maintaining soil organic C content. Converting leguminous green manure into biochar facilitates its use as a soil amendment. In this study, we assessed how the conversion of leguminous green manure (Sesbania roxburghii) into biochar altered its chemical composition and subsequent C and N mineralization. Biomass was charred along a temperature gradient from 200 to 500. °C. Using nuclear magnetic resonance and near-edge X-ray adsorption fine structure spectroscopy, we found that both C and N became enriched in aromatic and heterocyclic aromatic structures in biochar, and this structural change led to a reduction in C and N mineralization rates. The mineralized C decreased from 32.7% of the added C of raw biomass to <. 0.5% of that of biochar at charring temperatures above 400. °C. N release shifted from N mineralization in raw biomass to N immobilization at charring temperatures at 500. °C. As such, soil amended with biochar produced at charring temperatures exceeding 400. °C demonstrated a 25% decrease in dry shoot biomass compared with unamended soil. The results indicated that the C stability of leguminous green manure can be achieved by converting raw material into biochar, but that the charring process may limit it to providing N. © 2014 Elsevier B.V.
Scopus,
Полный текст,
WOS
Держатели документа:
School of Forestry and Resource Conservation, National Taiwan University, Taipei 106, Taiwan
Department of Agronomy, National Chung Hsing University, Taichung 500, Taiwan
Department of Agricultural Chemistry, National Taiwan University, Taipei 106, Taiwan
Institute of Forest SB RAS, Krasnoyarsk 660036, Russian Federation
National Synchrotron Radiation Research Center, Hsinchu 300, Taiwan
Доп.точки доступа:
Chen, C.-P.; Cheng, C.-H.; Huang, Y.-H.; Chen, C.-T.; Lai, C.-M.; Menyailo, O.V.; Fan, L.-J.; Yang, Y.-W.
Freeze-thaw effect on the processes of transformation of carbon and nitrogen compounds in alpine meadow soils
/ M. I. Makarov [et al.] // Russ. J. Ecol. - 2015. - Vol. 46, Is. 4. - P317-324, DOI 10.1134/S1067413615040116
. - ISSN 1067-4136
Кл.слова (ненормированные):
alpine meadow soils -- carbon -- immobilization -- microbial biomass -- mineralization -- nitrification -- nitrogen
Аннотация: Freezing-thawing of alpine meadow soils results in a 1.5- to 2-fold increase in the contents of extractable organic and inorganic nitrogen and organic carbon compounds, whereas the contents of microbial biomass nitrogen and carbon slightly decrease. The latter are quickly restored in the course of subsequent incubation, but the processes of transformation of nitrogen compounds proceed differently in soils that are subject to freezing under natural conditions and in nonfreezing soils. In nonfreezing soil, an abrupt activation of organic nitrogen mineralization and nitrification takes place against the background of a relatively low level of microbial assimilation of inorganic nitrogen compounds by microorganisms. © 2015, Pleiades Publishing, Ltd.
Scopus,
WOS
Держатели документа:
Moscow State University, Moscow, Russian Federation
Sukachev Institute of Forest, Siberian Branch, Russian Academy of Sciences, Akademgorodok, Krasnoyarsk, Russian Federation
Доп.точки доступа:
Makarov, M.I.; Malysheva, T.I.; Mulyukova, O.S.; Menyailo, O.V.
Кл.слова (ненормированные):
alpine meadow soils -- carbon -- immobilization -- microbial biomass -- mineralization -- nitrification -- nitrogen
Аннотация: Freezing-thawing of alpine meadow soils results in a 1.5- to 2-fold increase in the contents of extractable organic and inorganic nitrogen and organic carbon compounds, whereas the contents of microbial biomass nitrogen and carbon slightly decrease. The latter are quickly restored in the course of subsequent incubation, but the processes of transformation of nitrogen compounds proceed differently in soils that are subject to freezing under natural conditions and in nonfreezing soils. In nonfreezing soil, an abrupt activation of organic nitrogen mineralization and nitrification takes place against the background of a relatively low level of microbial assimilation of inorganic nitrogen compounds by microorganisms. © 2015, Pleiades Publishing, Ltd.
Scopus,
WOS
Держатели документа:
Moscow State University, Moscow, Russian Federation
Sukachev Institute of Forest, Siberian Branch, Russian Academy of Sciences, Akademgorodok, Krasnoyarsk, Russian Federation
Доп.точки доступа:
Makarov, M.I.; Malysheva, T.I.; Mulyukova, O.S.; Menyailo, O.V.
Destruction of Oil by Immobilizovannoy Mikrofloroy
/ T. V. Ryazanova, O. S. Fedorova, S. R. Loskutov // J. Sib. Fed. Univ.-Chem. - 2018. - Vol. 11, Is. 2. - С. 184-196, DOI 10.17516/1998-2836-0067. - Cited References:17
. - ISSN 1998-2836. - ISSN 2313-6049
РУБ Chemistry, Multidisciplinary
Кл.слова (ненормированные):
bioremediation -- sorption -- hydrocarbon-oxidizing microorganisms -- immobilization -- biosorbent
Аннотация: In model experiments shows the efficiency immobilized oil-degrading bacteria when the concentration of contaminant in soil 5 and 15 % (vol). As immobilizing agent used, the polymer sorbent of the type "Unisorb". Using the method of chromato-mass-spectrometry we have determined the changes of the component composition of oil in the process of bioremediation. It is shown that for the nine weeks of exposure at 5 % (about) of the contaminant in the soil disposal of oil was 95 %, while 15 % (about) - 86 %. What testifies to high efficiency of the proposed method of destruction of oil using immobilized microflora - sorbent "Unisorb-Bio". The obtained results allow to recommend it for combating oil and create backup reserves in case of emergencies.
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Держатели документа:
Reshetnev Siberian State Univ Sci & Technol, 31 Krasnoyarsky Rabochy, Krasnoyarsk 660037, Russia.
RAS, Krasnoyarsk Sci Ctr, NV Sukachev Inst Forest, FRC,SB, 50-28 Akademgorodok, Krasnoyarsk 660036, Russia.
Доп.точки доступа:
Ryazanova, Tatyana V.; Fedorova, Olga S.; Loskutov, Sergy R.
Кл.слова (ненормированные):
bioremediation -- sorption -- hydrocarbon-oxidizing microorganisms -- immobilization -- biosorbent
Аннотация: In model experiments shows the efficiency immobilized oil-degrading bacteria when the concentration of contaminant in soil 5 and 15 % (vol). As immobilizing agent used, the polymer sorbent of the type "Unisorb". Using the method of chromato-mass-spectrometry we have determined the changes of the component composition of oil in the process of bioremediation. It is shown that for the nine weeks of exposure at 5 % (about) of the contaminant in the soil disposal of oil was 95 %, while 15 % (about) - 86 %. What testifies to high efficiency of the proposed method of destruction of oil using immobilized microflora - sorbent "Unisorb-Bio". The obtained results allow to recommend it for combating oil and create backup reserves in case of emergencies.
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Держатели документа:
Reshetnev Siberian State Univ Sci & Technol, 31 Krasnoyarsky Rabochy, Krasnoyarsk 660037, Russia.
RAS, Krasnoyarsk Sci Ctr, NV Sukachev Inst Forest, FRC,SB, 50-28 Akademgorodok, Krasnoyarsk 660036, Russia.
Доп.точки доступа:
Ryazanova, Tatyana V.; Fedorova, Olga S.; Loskutov, Sergy R.
Nitrogen fertilization modifies organic transformations and coatings on soil biogeochemical interfaces through microbial polysaccharides synthesis
/ X. Huang [et al.] // Sci. Rep. - 2019. - Vol. 9, Is. 1. - Ст. 18684, DOI 10.1038/s41598-019-55174-y
. - ISSN 2045-2322
Аннотация: The soil-water interfaces (SWI) in soil pores are hotspots for organic matter (OM) transformation. However, due to the heterogeneous and opaque nature of soil microenvironment, direct and continuous tracing of interfacial reactions, such as OM transformations and formation of organo-mineral associations, are rare. To investigate these processes, a new soil microarray technology (SoilChips) was developed and used. Homogeneous 800-?m-diameter SoilChips were constructed by depositing a dispersed Oxisol A horizon suspension on a patterned glass. Dissolved organic matter from the original soil was added on the SoilChips to mimic SWI processes. The effects of ammonium fertilization (90 mg N kg?1 soil) on chemical composition of SWIs were evaluated via X-ray photoelectron spectroscopy. Over 21 days, ammonium addition increased OM coatings at SWIs and modified the OM chemical structure with more alcoholic- and carboxylic-C compared to the unfertilized control. Molecular modeling of OM composition at SWIs showed that N fertilization mainly facilitated the microbial production of glucans. We demonstrated that N availability modifies the specific OM molecular processing and its immobilization on SWIs, thereby providing a direct insight into biogeochemical transformation of OM at micro-scale. © 2019, The Author(s).
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Держатели документа:
Britton Chance Center for Biomedical Photonics at Wuhan National Laboratory for Optoelectronics - Hubei Bioinformatics & Molecular Imaging Key Laboratory, Systems Biology Theme, Department of Biomedical Engineering, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, China
Key Laboratory of Agro-ecological Processes in the Subtropical Region, Institute of Subtropical Agriculture, The Chinese Academy of Sciences, Changsha, 410125, China
Changsha Research Station for Agricultural and Environmental Monitoring, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Hunan, 410125, China
Institute of Soil Science, Leibniz Universitat Hannover, Hannover, 30419, Germany
VN Sukachev Institute of Forest, SB-RAS, Krasnoyarsk, 660036, Russian Federation
Department of Soil Science of Temperate Ecosystems, Department of Agricultural Soil Science, University of Goettingen, Gottingen, Germany
Institute of Environmental Sciences, Kazan Federal University, Kazan, 420049, Russian Federation
Agro-Technology Institute, RUDN University, Moscow, Russian Federation
Доп.точки доступа:
Huang, X.; Guggenberger, G.; Kuzyakov, Y.; Shibistova, O.; Ge, T.; Li, Y.; Liu, B.; Wu, J.
Аннотация: The soil-water interfaces (SWI) in soil pores are hotspots for organic matter (OM) transformation. However, due to the heterogeneous and opaque nature of soil microenvironment, direct and continuous tracing of interfacial reactions, such as OM transformations and formation of organo-mineral associations, are rare. To investigate these processes, a new soil microarray technology (SoilChips) was developed and used. Homogeneous 800-?m-diameter SoilChips were constructed by depositing a dispersed Oxisol A horizon suspension on a patterned glass. Dissolved organic matter from the original soil was added on the SoilChips to mimic SWI processes. The effects of ammonium fertilization (90 mg N kg?1 soil) on chemical composition of SWIs were evaluated via X-ray photoelectron spectroscopy. Over 21 days, ammonium addition increased OM coatings at SWIs and modified the OM chemical structure with more alcoholic- and carboxylic-C compared to the unfertilized control. Molecular modeling of OM composition at SWIs showed that N fertilization mainly facilitated the microbial production of glucans. We demonstrated that N availability modifies the specific OM molecular processing and its immobilization on SWIs, thereby providing a direct insight into biogeochemical transformation of OM at micro-scale. © 2019, The Author(s).
Scopus,
Смотреть статью
Держатели документа:
Britton Chance Center for Biomedical Photonics at Wuhan National Laboratory for Optoelectronics - Hubei Bioinformatics & Molecular Imaging Key Laboratory, Systems Biology Theme, Department of Biomedical Engineering, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, China
Key Laboratory of Agro-ecological Processes in the Subtropical Region, Institute of Subtropical Agriculture, The Chinese Academy of Sciences, Changsha, 410125, China
Changsha Research Station for Agricultural and Environmental Monitoring, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Hunan, 410125, China
Institute of Soil Science, Leibniz Universitat Hannover, Hannover, 30419, Germany
VN Sukachev Institute of Forest, SB-RAS, Krasnoyarsk, 660036, Russian Federation
Department of Soil Science of Temperate Ecosystems, Department of Agricultural Soil Science, University of Goettingen, Gottingen, Germany
Institute of Environmental Sciences, Kazan Federal University, Kazan, 420049, Russian Federation
Agro-Technology Institute, RUDN University, Moscow, Russian Federation
Доп.точки доступа:
Huang, X.; Guggenberger, G.; Kuzyakov, Y.; Shibistova, O.; Ge, T.; Li, Y.; Liu, B.; Wu, J.
Nitrogen fertilization modifies organic transformations and coatings on soil biogeochemical interfaces through microbial polysaccharides synthesis
/ X. Z. Huang, G. Guggenberger, Y. Kuzyakov [et al.] // Sci Rep. - 2019. - Vol. 9. - Ст. 18684, DOI 10.1038/s41598-019-55174-y. - Cited References:47. - The authors gratefully acknowledge financial support from the National Natural Science Foundation of China (No. 41090283; No. 41430860; No. 41807051) as well as and National Science Foundation of China and Russian Foundation of Basic Research joint project (N 19-54-53026) granted to T.G. and O.S. The publication was supported by the Russian Government Program of Competitive Growth of Kazan Federal University and with the support of the "RUDN University program 5-100". Contribution of YK was supported by the Russian Science Foundation (project No. 19-77-30012).
. - ISSN 2045-2322
РУБ Multidisciplinary Sciences
Аннотация: The soil-water interfaces (SWI) in soil pores are hotspots for organic matter (OM) transformation. However, due to the heterogeneous and opaque nature of soil microenvironment, direct and continuous tracing of interfacial reactions, such as OM transformations and formation of organo-mineral associations, are rare. To investigate these processes, a new soil microarray technology (SoilChips) was developed and used. Homogeneous 800-mu m-diameter SoilChips were constructed by depositing a dispersed Oxisol A horizon suspension on a patterned glass. Dissolved organic matter from the original soil was added on the SoilChips to mimic SWI processes. The effects of ammonium fertilization (90 mg N kg(-1) soil) on chemical composition of SWIs were evaluated via X-ray photoelectron spectroscopy. Over 21 days, ammonium addition increased OM coatings at SWIs and modified the OM chemical structure with more alcoholic- and carboxylic-C compared to the unfertilized control. Molecular modeling of OM composition at SWIs showed that N fertilization mainly facilitated the microbial production of glucans. We demonstrated that N availability modifies the specific OM molecular processing and its immobilization on SWIs, thereby providing a direct insight into biogeochemical transformation of OM at micro-scale.
WOS
Держатели документа:
Huazhong Univ Sci & Technol, Hubei Bioinformat & Mol Imaging Key Lab, Britton Chance Ctr Biomed Photon,Wuhan Natl Lab O, Dept Biomed Engn,Coll Life Sci & Technol,Syst Bio, Wuhan, Hubei, Peoples R China.
Chinese Acad Sci, Inst Subtrop Agr, Key Lab Agroecol Proc Subtrop Reg, Changsha 410125, Hunan, Peoples R China.
Chinese Acad Sci, Inst Subtrop Agr, Changsha Res Stn Agr & Environm Monitoring, Hunan 410125, Peoples R China.
Leibniz Univ Hannover, Inst Soil Sci, D-30419 Hannover, Germany.
RAS, VN Sukachev Inst Forest, SB, Krasnoyarsk 660036, Russia.
Univ Goettingen, Dept Agr Soil Sci, Dept Soil Sci Temperate Ecosyst, Gottingen, Germany.
Kazan Fed Univ, Inst Environm Sci, Kazan 420049, Russia.
RUDN Univ, Agrotechnol Inst, Moscow, Russia.
Доп.точки доступа:
Huang, Xizhi; Guggenberger, Georg; Kuzyakov, Yakov; Shibistova, Olga; Ge, Tida; Li, Yiwei; Liu, Bifeng; Wu, Jinshui; National Natural Science Foundation of ChinaNational Natural Science Foundation of China [41090283, 41430860, 41807051]; National Science Foundation of ChinaNational Natural Science Foundation of China [N 19-54-53026]; Russian Foundation of Basic ResearchRussian Foundation for Basic Research (RFBR) [N 19-54-53026]; Russian Government Program of Competitive Growth of Kazan Federal University; Russian Science FoundationRussian Science Foundation (RSF) [19-77-30012]; RUDN University program 5-100
Аннотация: The soil-water interfaces (SWI) in soil pores are hotspots for organic matter (OM) transformation. However, due to the heterogeneous and opaque nature of soil microenvironment, direct and continuous tracing of interfacial reactions, such as OM transformations and formation of organo-mineral associations, are rare. To investigate these processes, a new soil microarray technology (SoilChips) was developed and used. Homogeneous 800-mu m-diameter SoilChips were constructed by depositing a dispersed Oxisol A horizon suspension on a patterned glass. Dissolved organic matter from the original soil was added on the SoilChips to mimic SWI processes. The effects of ammonium fertilization (90 mg N kg(-1) soil) on chemical composition of SWIs were evaluated via X-ray photoelectron spectroscopy. Over 21 days, ammonium addition increased OM coatings at SWIs and modified the OM chemical structure with more alcoholic- and carboxylic-C compared to the unfertilized control. Molecular modeling of OM composition at SWIs showed that N fertilization mainly facilitated the microbial production of glucans. We demonstrated that N availability modifies the specific OM molecular processing and its immobilization on SWIs, thereby providing a direct insight into biogeochemical transformation of OM at micro-scale.
WOS
Держатели документа:
Huazhong Univ Sci & Technol, Hubei Bioinformat & Mol Imaging Key Lab, Britton Chance Ctr Biomed Photon,Wuhan Natl Lab O, Dept Biomed Engn,Coll Life Sci & Technol,Syst Bio, Wuhan, Hubei, Peoples R China.
Chinese Acad Sci, Inst Subtrop Agr, Key Lab Agroecol Proc Subtrop Reg, Changsha 410125, Hunan, Peoples R China.
Chinese Acad Sci, Inst Subtrop Agr, Changsha Res Stn Agr & Environm Monitoring, Hunan 410125, Peoples R China.
Leibniz Univ Hannover, Inst Soil Sci, D-30419 Hannover, Germany.
RAS, VN Sukachev Inst Forest, SB, Krasnoyarsk 660036, Russia.
Univ Goettingen, Dept Agr Soil Sci, Dept Soil Sci Temperate Ecosyst, Gottingen, Germany.
Kazan Fed Univ, Inst Environm Sci, Kazan 420049, Russia.
RUDN Univ, Agrotechnol Inst, Moscow, Russia.
Доп.точки доступа:
Huang, Xizhi; Guggenberger, Georg; Kuzyakov, Yakov; Shibistova, Olga; Ge, Tida; Li, Yiwei; Liu, Bifeng; Wu, Jinshui; National Natural Science Foundation of ChinaNational Natural Science Foundation of China [41090283, 41430860, 41807051]; National Science Foundation of ChinaNational Natural Science Foundation of China [N 19-54-53026]; Russian Foundation of Basic ResearchRussian Foundation for Basic Research (RFBR) [N 19-54-53026]; Russian Government Program of Competitive Growth of Kazan Federal University; Russian Science FoundationRussian Science Foundation (RSF) [19-77-30012]; RUDN University program 5-100
Carbon and nitrogen recycling from microbial necromass to cope with C:N stoichiometric imbalance by priming
/ J. Cui, Z. Zhu, X. Xu [et al.] // Soil Biol. Biochem. - 2020. - Vol. 142. - Ст. 107720, DOI 10.1016/j.soilbio.2020.107720
. - ISSN 0038-0717
Кл.слова (ненормированные):
Compound-specific 13C-PLFA analysis -- Glucose mineralization -- Necromass recycling -- Priming effects -- Soil carbon -- Stoichiometric imbalance -- Carbon dioxide -- Glucose -- Mineralogy -- Nitrogen -- Recycling -- Soils -- Compound-specific. 3C-PLFA analysis -- Necromass -- Priming effects -- Soil carbon -- Stoichiometric imbalance -- Bacteria -- anoxic conditions -- biomineralization -- carbon isotope -- decomposition -- glucose -- nitrogen -- nutrient cycling -- soil carbon -- soil nitrogen -- soil organic matter -- stoichiometry -- Actinobacteria (class) -- Bacteria (microorganisms) -- Fungi -- Negibacteria -- Posibacteria
Аннотация: The impact of increasing amounts of labile C input on priming effects (PE) on soil organic matter (SOM) mineralization remains unclear, particularly under anoxic conditions and under high C input common in microbial hotspots. PE and their mechanisms were investigated by a 60-day incubation of three flooded paddy soils amended with13C-labeled glucose equivalent to 50–500% of microbial biomass C (MBC). PE (14–55% of unamended soil) peaked at moderate glucose addition rates (i.e., 50–300% of MBC). Glucose addition above 300% of MBC suppressed SOM mineralization but intensified microbial N acquisition, which contradicted the common PE mechanism of accelerating SOM decomposition for N-supply (frequently termed as “N mining”). Particularly at glucose input rate higher than 3 g kg?1 (i.e., 300–500% of MBC), mineral N content dropped on day 2 close to zero (1.1–2.5 mg N kg?1) because of microbial N immobilization. To cope with the N limitation, microorganisms greatly increased N-acetyl glucosaminidase and leucine aminopeptidase activities, while SOM decomposition decreased. Several discrete peaks of glucose-derived CO2 (contributing >80% to total CO2) were observed between days 13–30 under high glucose input (300–500% of MBC), concurrently with CH4 peaks. Such CO2 dynamics was distinct from the common exponential decay pattern, implicating the recycling and mineralization of 13C-enriched microbial necromass driven by glucose addition. Therefore, N recycling from necromass was hypothesized as a major mechanism to alleviate microbial N deficiency without SOM priming under excess labile C input. Compound-specific 13C-PLFA confirmed the redistribution of glucose-derived C among microbial groups, i.e., necromass recycling. Following glucose input, more than 4/5 of total 13C-PLFA was in the gram-negative and some non-specific bacteria, suggesting these microorganisms as r-strategists capable of rapidly utilizing the most labile C. However, their 13C-PLFA content decreased by 70% after 60 days, probably as a result of death of these r-strategists. On the contrary, the 13C-PLFA in gram-positive bacteria, actinomycetes and fungi (K-strategists) was initially minimal but increased by 0.5–5 folds between days 2 and 60. Consequently, the necromass of dead r-strategists provided a high-quality C–N source to the K-strategists. We conclude that under severe C excess, N recycling from necromass is a much more efficient microbial strategy to cover the acute N demand than N acquisition from the recalcitrant SOM. © 2020 Elsevier Ltd
Scopus
Держатели документа:
Key Laboratory of Agro-ecological Processes in Subtropical Region & Changsha Research Station for Agricultural and Environmental Monitoring, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Hunan, 410125, China
State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Gongdong, 510640, China
Jiangsu Provincial Key Laboratory for Bioresources of Coastal Saline Soils, Jiangsu Coastal Biological Agriculture Synthetic Innovation Center, Yancheng Teachers' University, Yancheng, 224002, China
Key Laboratory of Ecosystem Network Observation and Modeling, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, 100101, China
School of Environment, Natural Resources & Geography, Bangor University, Gwynedd, LL57 2UW, United Kingdom
Department of Agricultural Soil Science, Department of Soil Science of Temperate Ecosystems, University of G?ttingen, G?ttingen, Germany
Institute of Environmental Sciences, Kazan Federal University, Kazan, 420049, Russian Federation
Agro-Technological Institute, RUDN University, Moscow, 117198, Russian Federation
Departamento de Ciencias Quimicas y Recursos Naturales, Universidad de La Frontera, Temuco, Chile
VN Sukachev Institute of Forest, SB-RAS, Krasnoyarsk, 660036, Russian Federation
Доп.точки доступа:
Cui, J.; Zhu, Z.; Xu, X.; Liu, S.; Jones, D. L.; Kuzyakov, Y.; Shibistova, O.; Wu, J.; Ge, T.
Кл.слова (ненормированные):
Compound-specific 13C-PLFA analysis -- Glucose mineralization -- Necromass recycling -- Priming effects -- Soil carbon -- Stoichiometric imbalance -- Carbon dioxide -- Glucose -- Mineralogy -- Nitrogen -- Recycling -- Soils -- Compound-specific. 3C-PLFA analysis -- Necromass -- Priming effects -- Soil carbon -- Stoichiometric imbalance -- Bacteria -- anoxic conditions -- biomineralization -- carbon isotope -- decomposition -- glucose -- nitrogen -- nutrient cycling -- soil carbon -- soil nitrogen -- soil organic matter -- stoichiometry -- Actinobacteria (class) -- Bacteria (microorganisms) -- Fungi -- Negibacteria -- Posibacteria
Аннотация: The impact of increasing amounts of labile C input on priming effects (PE) on soil organic matter (SOM) mineralization remains unclear, particularly under anoxic conditions and under high C input common in microbial hotspots. PE and their mechanisms were investigated by a 60-day incubation of three flooded paddy soils amended with13C-labeled glucose equivalent to 50–500% of microbial biomass C (MBC). PE (14–55% of unamended soil) peaked at moderate glucose addition rates (i.e., 50–300% of MBC). Glucose addition above 300% of MBC suppressed SOM mineralization but intensified microbial N acquisition, which contradicted the common PE mechanism of accelerating SOM decomposition for N-supply (frequently termed as “N mining”). Particularly at glucose input rate higher than 3 g kg?1 (i.e., 300–500% of MBC), mineral N content dropped on day 2 close to zero (1.1–2.5 mg N kg?1) because of microbial N immobilization. To cope with the N limitation, microorganisms greatly increased N-acetyl glucosaminidase and leucine aminopeptidase activities, while SOM decomposition decreased. Several discrete peaks of glucose-derived CO2 (contributing >80% to total CO2) were observed between days 13–30 under high glucose input (300–500% of MBC), concurrently with CH4 peaks. Such CO2 dynamics was distinct from the common exponential decay pattern, implicating the recycling and mineralization of 13C-enriched microbial necromass driven by glucose addition. Therefore, N recycling from necromass was hypothesized as a major mechanism to alleviate microbial N deficiency without SOM priming under excess labile C input. Compound-specific 13C-PLFA confirmed the redistribution of glucose-derived C among microbial groups, i.e., necromass recycling. Following glucose input, more than 4/5 of total 13C-PLFA was in the gram-negative and some non-specific bacteria, suggesting these microorganisms as r-strategists capable of rapidly utilizing the most labile C. However, their 13C-PLFA content decreased by 70% after 60 days, probably as a result of death of these r-strategists. On the contrary, the 13C-PLFA in gram-positive bacteria, actinomycetes and fungi (K-strategists) was initially minimal but increased by 0.5–5 folds between days 2 and 60. Consequently, the necromass of dead r-strategists provided a high-quality C–N source to the K-strategists. We conclude that under severe C excess, N recycling from necromass is a much more efficient microbial strategy to cover the acute N demand than N acquisition from the recalcitrant SOM. © 2020 Elsevier Ltd
Scopus
Держатели документа:
Key Laboratory of Agro-ecological Processes in Subtropical Region & Changsha Research Station for Agricultural and Environmental Monitoring, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Hunan, 410125, China
State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Gongdong, 510640, China
Jiangsu Provincial Key Laboratory for Bioresources of Coastal Saline Soils, Jiangsu Coastal Biological Agriculture Synthetic Innovation Center, Yancheng Teachers' University, Yancheng, 224002, China
Key Laboratory of Ecosystem Network Observation and Modeling, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, 100101, China
School of Environment, Natural Resources & Geography, Bangor University, Gwynedd, LL57 2UW, United Kingdom
Department of Agricultural Soil Science, Department of Soil Science of Temperate Ecosystems, University of G?ttingen, G?ttingen, Germany
Institute of Environmental Sciences, Kazan Federal University, Kazan, 420049, Russian Federation
Agro-Technological Institute, RUDN University, Moscow, 117198, Russian Federation
Departamento de Ciencias Quimicas y Recursos Naturales, Universidad de La Frontera, Temuco, Chile
VN Sukachev Institute of Forest, SB-RAS, Krasnoyarsk, 660036, Russian Federation
Доп.точки доступа:
Cui, J.; Zhu, Z.; Xu, X.; Liu, S.; Jones, D. L.; Kuzyakov, Y.; Shibistova, O.; Wu, J.; Ge, T.
Carbon and nitrogen recycling from microbial necromass to cope with C:N stoichiometric imbalance by priming
/ J. Cui, Z. K. Zhu, X. L. Xu [et al.] // Soil Biol. Biochem. - 2020. - Vol. 142. - Ст. 107720, DOI 10.1016/j.soilbio.2020.107720. - Cited References:80. - The study was supported by the National Key Research and Development Program of China (2017YFD0800104), the National Natural Science Foundation of China (41430860, 41771337, 41977093 and 31872695), State Key Laboratory of Organic Geochemistry, GIGCAS (SKLOG-201728), Hunan Province Base for Scientific and Technological Innovation Cooperation (2018WK4012), the Youth Innovation Team Project of Institute of Subtropical Agriculture, Chinese Academy of Sciences (2017QNCXTD_GTD), NSFC-RFBR joint project (N 19-54-53026) and Innovation Groups of National Natural Science Foundation of Hunan Province (2019JJ10003). We thank the Public Service Technology Center, Institute of Subtropical Agriculture, Chinese Academy of Sciences for technical assistance. The publication was supported by the Government Program of Competitive Growth of Kazan Federal University and with the support of the "RUDN University program 5-100."
. - ISSN 0038-0717
РУБ Soil Science
Аннотация: The impact of increasing amounts of labile C input on priming effects (PE) on soil organic matter (SOM) mineralization remains unclear, particularly under anoxic conditions and under high C input common in microbial hotspots. PE and their mechanisms were investigated by a 60-day incubation of three flooded paddy soils amended with(13)C-labeled glucose equivalent to 50-500% of microbial biomass C (MBC). PE (14-55% of unamended soil) peaked at moderate glucose addition rates (i.e., 50-300% of MBC). Glucose addition above 300% of MBC suppressed SOM mineralization but intensified microbial N acquisition, which contradicted the common PE mechanism of accelerating SOM decomposition for N-supply (frequently termed as "N mining"). Particularly at glucose input rate higher than 3 g kg(-1) (i.e., 300-500% of MBC), mineral N content dropped on day 2 close to zero (1.1-2.5 mg N kg(-1)) because of microbial N immobilization. To cope with the N limitation, microorganisms greatly increased N-acetyl glucosaminidase and leucine aminopeptidase activities, while SOM decomposition decreased. Several discrete peaks of glucose-derived CO2 (contributing >80% to total CO2) were observed between days 13-30 under high glucose input (300-500% of MBC), concurrently with CH4 peaks. Such CO2 dynamics was distinct from the common exponential decay pattern, implicating the recycling and mineralization of C-13-enriched microbial necromass driven by glucose addition. Therefore, N recycling from necromass was hypothesized as a major mechanism to alleviate microbial N deficiency without SOM priming under excess labile C input. Compound-specific C-13-PLFA confirmed the redistribution of glucose-derived C among microbial groups, i.e., necromass recycling. Following glucose input, more than 4/5 of total C-13-PLFA was in the gram-negative and some non-specific bacteria, suggesting these microorganisms as r-strategists capable of rapidly utilizing the most labile C. However, their C-13-PLFA content decreased by 70% after 60 days, probably as a result of death of these r-strategists. On the contrary, the C-13-PLFA in gram-positive bacteria, actinomycetes and fungi (K-strategists) was initially minimal but increased by 0.5-5 folds between days 2 and 60. Consequently, the necromass of dead r-strategists provided a high-quality C-N source to the K-strategists. We conclude that under severe C excess, N recycling from necromass is a much more efficient microbial strategy to cover the acute N demand than N acquisition from the recalcitrant SOM.
WOS
Держатели документа:
Chinese Acad Sci, Inst Subtrop Agr, Key Lab Agroecol Proc Subtrop Reg, Changsha 410125, Hunan, Peoples R China.
Chinese Acad Sci, Inst Subtrop Agr, Changsha Res Stn Agr & Environm Monitoring, Changsha 410125, Hunan, Peoples R China.
Chinese Acad Sci, State Key Lab Organ Geochem, Guangzhou Inst Geochem, Gongdong 510640, Peoples R China.
Yancheng Teachers Univ, Jiangsu Prov Key Lab Bioresources Coastal Saline, Jiangsu Coastal Biol Agr Synthet Innovat Ctr, Yancheng 224002, Peoples R China.
Chinese Acad Sci, Key Lab Ecosyst Network Observat & Modeling, Inst Geog Sci & Nat Resources Res, Beijing, Peoples R China.
Bangor Univ, Sch Environm Nat Resources & Geog, Bangor LL57 2UW, Gwynedd, Wales.
Univ Gottingen, Dept Agr Soil Sci, Dept Soil Sci Temperate Ecosyst, Gottingen, Germany.
Kazan Fed Univ, Inst Environm Sci, Kazan 420049, Russia.
RUDN Univ, Agrotechnol Inst, Moscow 117198, Russia.
Univ La Frontera, Dept Ciencias Quim & Recursos Nat, Temuco, Chile.
RAS, SB, VN Sukachev Inst Forest, Krasnoyarsk 660036, Russia.
Доп.точки доступа:
Cui, Jun; Zhu, Zhenke; Xu, Xingliang; Liu, Shoulong; Jones, Davey L.; Kuzyakov, Yakov; Shibistova, Olga; Wu, Jinshui; Ge, Tida; National Key Research and Development Program of China [2017YFD0800104]; National Natural Science Foundation of ChinaNational Natural Science Foundation of China [41430860, 41771337, 41977093, 31872695]; State Key Laboratory of Organic Geochemistry, GIGCAS [SKLOG-201728]; Hunan Province Base for Scientific and Technological Innovation Cooperation [2018WK4012]; Youth Innovation Team Project of Institute of Subtropical Agriculture, Chinese Academy of Sciences [2017QNCXTD_GTD]; NSFC-RFBR joint project [N 19-54-53026]; Innovation Groups of National Natural Science Foundation of Hunan Province [2019JJ10003]; Government Program of Competitive Growth of Kazan Federal University; RUDN University program 5-100
Рубрики:
SOIL ORGANIC-MATTER
LABILE CARBON
ENZYME-ACTIVITIES
PADDY SOIL
Кл.слова (ненормированные):
Soil carbon -- Priming effects -- Glucose mineralization -- Compound-specific -- C-13-PLFA analysis -- Necromass recycling -- Stoichiometric imbalance
SOIL ORGANIC-MATTER
LABILE CARBON
ENZYME-ACTIVITIES
PADDY SOIL
Кл.слова (ненормированные):
Soil carbon -- Priming effects -- Glucose mineralization -- Compound-specific -- C-13-PLFA analysis -- Necromass recycling -- Stoichiometric imbalance
Аннотация: The impact of increasing amounts of labile C input on priming effects (PE) on soil organic matter (SOM) mineralization remains unclear, particularly under anoxic conditions and under high C input common in microbial hotspots. PE and their mechanisms were investigated by a 60-day incubation of three flooded paddy soils amended with(13)C-labeled glucose equivalent to 50-500% of microbial biomass C (MBC). PE (14-55% of unamended soil) peaked at moderate glucose addition rates (i.e., 50-300% of MBC). Glucose addition above 300% of MBC suppressed SOM mineralization but intensified microbial N acquisition, which contradicted the common PE mechanism of accelerating SOM decomposition for N-supply (frequently termed as "N mining"). Particularly at glucose input rate higher than 3 g kg(-1) (i.e., 300-500% of MBC), mineral N content dropped on day 2 close to zero (1.1-2.5 mg N kg(-1)) because of microbial N immobilization. To cope with the N limitation, microorganisms greatly increased N-acetyl glucosaminidase and leucine aminopeptidase activities, while SOM decomposition decreased. Several discrete peaks of glucose-derived CO2 (contributing >80% to total CO2) were observed between days 13-30 under high glucose input (300-500% of MBC), concurrently with CH4 peaks. Such CO2 dynamics was distinct from the common exponential decay pattern, implicating the recycling and mineralization of C-13-enriched microbial necromass driven by glucose addition. Therefore, N recycling from necromass was hypothesized as a major mechanism to alleviate microbial N deficiency without SOM priming under excess labile C input. Compound-specific C-13-PLFA confirmed the redistribution of glucose-derived C among microbial groups, i.e., necromass recycling. Following glucose input, more than 4/5 of total C-13-PLFA was in the gram-negative and some non-specific bacteria, suggesting these microorganisms as r-strategists capable of rapidly utilizing the most labile C. However, their C-13-PLFA content decreased by 70% after 60 days, probably as a result of death of these r-strategists. On the contrary, the C-13-PLFA in gram-positive bacteria, actinomycetes and fungi (K-strategists) was initially minimal but increased by 0.5-5 folds between days 2 and 60. Consequently, the necromass of dead r-strategists provided a high-quality C-N source to the K-strategists. We conclude that under severe C excess, N recycling from necromass is a much more efficient microbial strategy to cover the acute N demand than N acquisition from the recalcitrant SOM.
WOS
Держатели документа:
Chinese Acad Sci, Inst Subtrop Agr, Key Lab Agroecol Proc Subtrop Reg, Changsha 410125, Hunan, Peoples R China.
Chinese Acad Sci, Inst Subtrop Agr, Changsha Res Stn Agr & Environm Monitoring, Changsha 410125, Hunan, Peoples R China.
Chinese Acad Sci, State Key Lab Organ Geochem, Guangzhou Inst Geochem, Gongdong 510640, Peoples R China.
Yancheng Teachers Univ, Jiangsu Prov Key Lab Bioresources Coastal Saline, Jiangsu Coastal Biol Agr Synthet Innovat Ctr, Yancheng 224002, Peoples R China.
Chinese Acad Sci, Key Lab Ecosyst Network Observat & Modeling, Inst Geog Sci & Nat Resources Res, Beijing, Peoples R China.
Bangor Univ, Sch Environm Nat Resources & Geog, Bangor LL57 2UW, Gwynedd, Wales.
Univ Gottingen, Dept Agr Soil Sci, Dept Soil Sci Temperate Ecosyst, Gottingen, Germany.
Kazan Fed Univ, Inst Environm Sci, Kazan 420049, Russia.
RUDN Univ, Agrotechnol Inst, Moscow 117198, Russia.
Univ La Frontera, Dept Ciencias Quim & Recursos Nat, Temuco, Chile.
RAS, SB, VN Sukachev Inst Forest, Krasnoyarsk 660036, Russia.
Доп.точки доступа:
Cui, Jun; Zhu, Zhenke; Xu, Xingliang; Liu, Shoulong; Jones, Davey L.; Kuzyakov, Yakov; Shibistova, Olga; Wu, Jinshui; Ge, Tida; National Key Research and Development Program of China [2017YFD0800104]; National Natural Science Foundation of ChinaNational Natural Science Foundation of China [41430860, 41771337, 41977093, 31872695]; State Key Laboratory of Organic Geochemistry, GIGCAS [SKLOG-201728]; Hunan Province Base for Scientific and Technological Innovation Cooperation [2018WK4012]; Youth Innovation Team Project of Institute of Subtropical Agriculture, Chinese Academy of Sciences [2017QNCXTD_GTD]; NSFC-RFBR joint project [N 19-54-53026]; Innovation Groups of National Natural Science Foundation of Hunan Province [2019JJ10003]; Government Program of Competitive Growth of Kazan Federal University; RUDN University program 5-100
Competition of Plants and Microorganisms for Added Nitrogen in Different Fertilizer Forms in a Semi-Arid Climate
/ M. Koch, K. Akshalov, J. F. Carstens [et al.] // Agronomy-Basel. - 2021. - Vol. 11, Is. 12. - Ст. 2472, DOI 10.3390/agronomy11122472. - Cited References:59
. - ISSN 2073-4395
РУБ Agronomy + Plant Sciences
Аннотация: In nitrogen (N) -limited agricultural systems, a high microbial immobilization of applied fertilizer-N can limit its availability to plants. However, there is scarce information on the effect of the form of fertilizer used on the plant-microorganism competition in clay-rich soils under a severe semi-arid climate. In a field study, we investigated the wheat-microorganism competition after the direct application of (NH4NO3)-N-15 closely to seeds in arable fields in North Kazakhstan, documenting the effect of the use of liquid versus granular fertilizer and mini-tillage versus no-tillage. Our results barely showed any fertilizer-N translocation in the soil. Plants outcompete microorganisms for fertilizer-N during the vegetation period. Microbial-to-plant N-15 ratios revealed a predominant fertilizer-N-15 uptake by plants. The strong competition for N was mainly related to the placement of the fertilizer close to the seeds. Moreover, the long time interval between fertilization and sampling enhanced the competition for N, meaning that previously microbially immobilized N became available to plants through the death of microorganisms and their subsequent mineralization. The fertilizer distribution between microorganisms and plants did depend on the form of fertilizer used, owing to the good solubility of granular fertilizer. The smaller fertilizer-N uptake under the no-tilling condition was probably due to the more intense soil compaction, which caused a reduction in plant growth. The application of fertilizer close to the seeds and the small fertilizer translocation during the vegetation period ultimately resulted in a high level of plant N being derived from the fertilizer.
WOS
Держатели документа:
Leibniz Univ Hannover, Inst Soil Sci, Herrenhauser Str 2, D-30419 Hannover, NH, Germany.
Martin Luther Univ Halle Wittenberg, Dept Geoecol, von Seckendorff Pl 4, D-06120 Halle, Germany.
Sci & Prod Ctr Grain Farming, Baraev Str 15, Shortandy 021601, Kazakhstan.
Tech Univ Clausthal, Adolph Roemer Str 2A, D-38678 Clausthal Zellerfeld, Germany.
Russian Acad Sci, Siberian Branch, VN Sukachev Inst Forest, Krasnoyarsk 660036, Russia.
Fed Inst Geosci & Nat Resources BGR, Stilleweg 2, D-30655 Hannover, Germany.
JSC Atameken Agro, Estern Ind Zone Driveway 20,Bldg 30, Kokschetau 020000, Kazakhstan.
Amazonen Werke H Dryer GmbH & Co KG, Amazonenwerk 9-13, D-49205 Hasbergen, Germany.
Доп.точки доступа:
Koch, Markus; Akshalov, Kanat; Carstens, Jannis Florian; Shibistova, Olga; Stange, Claus Florian; Thiedau, Simon; Kassymova, Alfiya; Sauheitl, Leopold; Meinel, Tobias; Guggenberger, Georg
Рубрики:
SOIL ORGANIC-MATTER
MICROBIAL BIOMASS
N-MINERALIZATION
SPRING WHEAT
Кл.слова (ненормированные):
liquid fertilizer -- granular fertilizer -- mini-till -- no-till -- ammonium -- nitrate -- N-15
SOIL ORGANIC-MATTER
MICROBIAL BIOMASS
N-MINERALIZATION
SPRING WHEAT
Кл.слова (ненормированные):
liquid fertilizer -- granular fertilizer -- mini-till -- no-till -- ammonium -- nitrate -- N-15
Аннотация: In nitrogen (N) -limited agricultural systems, a high microbial immobilization of applied fertilizer-N can limit its availability to plants. However, there is scarce information on the effect of the form of fertilizer used on the plant-microorganism competition in clay-rich soils under a severe semi-arid climate. In a field study, we investigated the wheat-microorganism competition after the direct application of (NH4NO3)-N-15 closely to seeds in arable fields in North Kazakhstan, documenting the effect of the use of liquid versus granular fertilizer and mini-tillage versus no-tillage. Our results barely showed any fertilizer-N translocation in the soil. Plants outcompete microorganisms for fertilizer-N during the vegetation period. Microbial-to-plant N-15 ratios revealed a predominant fertilizer-N-15 uptake by plants. The strong competition for N was mainly related to the placement of the fertilizer close to the seeds. Moreover, the long time interval between fertilization and sampling enhanced the competition for N, meaning that previously microbially immobilized N became available to plants through the death of microorganisms and their subsequent mineralization. The fertilizer distribution between microorganisms and plants did depend on the form of fertilizer used, owing to the good solubility of granular fertilizer. The smaller fertilizer-N uptake under the no-tilling condition was probably due to the more intense soil compaction, which caused a reduction in plant growth. The application of fertilizer close to the seeds and the small fertilizer translocation during the vegetation period ultimately resulted in a high level of plant N being derived from the fertilizer.
WOS
Держатели документа:
Leibniz Univ Hannover, Inst Soil Sci, Herrenhauser Str 2, D-30419 Hannover, NH, Germany.
Martin Luther Univ Halle Wittenberg, Dept Geoecol, von Seckendorff Pl 4, D-06120 Halle, Germany.
Sci & Prod Ctr Grain Farming, Baraev Str 15, Shortandy 021601, Kazakhstan.
Tech Univ Clausthal, Adolph Roemer Str 2A, D-38678 Clausthal Zellerfeld, Germany.
Russian Acad Sci, Siberian Branch, VN Sukachev Inst Forest, Krasnoyarsk 660036, Russia.
Fed Inst Geosci & Nat Resources BGR, Stilleweg 2, D-30655 Hannover, Germany.
JSC Atameken Agro, Estern Ind Zone Driveway 20,Bldg 30, Kokschetau 020000, Kazakhstan.
Amazonen Werke H Dryer GmbH & Co KG, Amazonenwerk 9-13, D-49205 Hasbergen, Germany.
Доп.точки доступа:
Koch, Markus; Akshalov, Kanat; Carstens, Jannis Florian; Shibistova, Olga; Stange, Claus Florian; Thiedau, Simon; Kassymova, Alfiya; Sauheitl, Leopold; Meinel, Tobias; Guggenberger, Georg