Труды сотрудников ИЛ им. В.Н. Сукачева СО РАН

: материалы временных коллективов / A. V. Klimchenko [и др.] // 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. 323-326. - Библиогр. в конце ст.
Аннотация: This study was conducted in Siberian central pine forests ecosystems located along the Yenisei river. Loads of down coarse woody debris found within ZOTTO observation tower footprint (an area with a radius of 100 km) were recorded by vegetation cover class. Averige accumulation of carbon in coarse woody debris in pine green-moss are 2 times higher than in lichen and are 12.5 and 6.2 ha -1 respectively. The common reserves on the territory occupied, the two dominant groups of pine forest type and logging, are respectively 1481.2-3269.3 thousand tons.

Держатели документа:
Институт леса им. В.Н. Сукачева Сибирского отделения Российской академии наук : 660036, Красноярск, Академгородок 50/28

Доп.точки доступа:
Klimchenko, Alexandr Vasil'yevich; Климченко, Александр Васильевич; Verkhovets, Sergey Vladimirovich; Верховец, Сергей Владимирович; Slinkina, Ol'ga Alexandrovna; Слинкина, Ольга Александровна; Koshurnikova, Natal'ya Nikolayevna; Кошурникова, Наталья Николаевна

: 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

/ L. . Mukhortova // Bosque. - 2012. - Vol. 33, Is. 3. - P261-265, DOI 10.4067/S0717-92002012000300005. - Cited References: 10. - This research was supported by the Russian Foundation for Basic Research (RFBR) (Grants 10-04-00337 and 11-04-01884) and by joint grants of RFBR and Krasnoyarsk Regional Foundation for Science and Technical Development (Projects 11-04-98008 and 11-04-98089). . - 5. - ISSN 0304-8799РУБ Ecology + Forestry

Аннотация: Forest harvesting is a major human-caused disturbance affecting carbon budgets in forest ecosystems. This study was concerned with post-logging carbon pool changes in Scots pine (Pinus sylvestris) and Siberian fir (Abies sibirica) stands. To understand carbon budget recovery trends following logging, carbon stock and fluxes were measured in stands differing in time since logging. In both Scots pine and fir stands disturbed by logging, the tree phytomass contribution to the carbon budget decreased drastically, whereas the coarse woody debris (CWD) carbon pool exhibited a marked increase. Sixty years following logging, the Scots pine stand carbon storage was almost 70 % of that prior to logging and the ratio between the phytomass and soil organic matter was the same as before the disturbance. While the phytomass carbon showed a similar trend in the fir stand of the same age, it was less than on the control stand. In a 50-55-year-old fir stand, 26 years since harvesting, the phytomass carbon recovered only by 15 %. Siberian fir and Scots pine logging sites differed in CWD loading and decomposition rate. The phytomass dynamics and CWD loading values obtained suggest that Scots pine stands which have experienced logging are most likely carbon sinks, as was clear from the phytomass production exceeding organic matter decomposition-caused fluxes. Conversely, logged fir ecosystems are likely to be sources of carbon to the atmosphere due to a large CWD loading, faster rate of its decomposition, and slow phytomass increment.

WOS,
Scopus

Держатели документа:
Russian Acad Sci, Siberian Branch, VN Sukachev Inst Forest, Krasnoyarsk, Russia

Доп.точки доступа:
Mukhortova, L...; Мухортова, Людмила Владимировна

[Text] / E. F. Vedrova // Eurasian Soil Sci. - 2008. - Vol. 41, Is. 8. - P860-868, DOI 10.1134/S1064229308080085. - Cited References: 45. - This study was supported by the Russian Foundation for basic research, project nos. 03-04-20018 and 06-06-90596. . - 9. - ISSN 1064-2293РУБ Soil Science

Аннотация: The estimates of the carbon pool in the organic matter of gray soils of the southern taiga, the intensity of destruction of its components, and participation of the latter in the formation of the mineralized carbon flux to the atmosphere are presented for different stages of succession of deciduous (birch) and coniferous (fir) forests. The carbon pool varies from 139.7 to 292.7 t/ha. It is distributed between phytodetritus, mobile and stabile humus (32, 19, and 49%, respectively). The intensity of the mineralization carbon flux to the atmosphere amounts to 3.93-4.13 t C per year. Phytodetritus plays the main role in the formation of this flux. In the soils under the forests studied, 4-6% of the carbon flux are formed owing to mineralization of the newly formed soil humus. In birch forests, 2-6% (0.1-0.2% of the humus pool in the 0-20-cm layer) is the contribution to the flux due to mineralization of soil humus. In fir forests, the mineralized humus is compensated by humus substances synthesized in the process of humification during phytodetritus decomposition.

Полный текст,
WOS,
Scopus

Держатели документа:
Russian Acad Sci, Sukachev Inst Forest, Siberian Branch, Krasnoyarsk 660036, Russia

Доп.точки доступа:
Vedrova, E.F.

[Text] / Y. N. Krasnoshchekov, I. N. Bezkorovainaya // Biol. Bull. - 2008. - Vol. 35, Is. 1. - P70-79, DOI 10.1134/S1062359008010111. - Cited References: 20 . - 10. - ISSN 1062-3590РУБ Biology

Аннотация: The results of experimental studies on the contribution of zoogenic debris to transformation of soil properties in the southern taiga subzone of Central Siberia are analyzed. They show that water-soluble carbon outflow from the forest litter increases by 21-26% upon a Siberian moth invasion, with this value decreasing to 14% one year later. The burning of forest in an area completely defoliated by the pest leads to changes in the stock, fractional composition, actual acidity, and ash element contents of the litter. The litter-dwelling invertebrate assemblage is almost completely destroyed by fire and begins to recover only after two years.

Полный текст,
WOS,
Scopus

Держатели документа:
[Krasnoshchekov, Yu. N.
Bezkorovainaya, I. N.] Russian Acad Sci, Sukachev Inst Forestry, Siberian Branch, Krasnoyarsk 660036, Russia

Доп.точки доступа:
Krasnoshchekov, Y.N.; Bezkorovainaya, I.N.

[Text] / Y. N. Krasnoshchekov [et al.] // Biol. Bull. - 2003. - Vol. 30, Is. 5. - P517-524, DOI 10.1023/A:1025811022200. - Cited References: 6 . - 8. - ISSN 1062-3590РУБ Biology

Аннотация: Experimental data are analyzed that concern the effect of zoogenic debris on the properties of soddy deep podzolic soils and raw-humus brown soils characteristic of southern taiga forests in the Yenisei region of Siberia. It is shown that the influence of excrements of Siberian moth larvae on the soil microflora lasts for two or, at most, three growing seasons. Zoogenic plant debris failing on the ground surface during tree stand defoliation is a short-acting but powerful stimulant of biological activity in the litter; hence, it has a considerable effect on soil properties. This effect is enhanced by changes in ecological conditions that occur upon defoliation. The influence of the cenotic factor on biogenic soil properties is manifested more strongly in the organogenic horizons. The communities of microorganisms involved in the nitrogen and carbon cycles are dominated by prototrophic forms in the normal fir forest and by pedotrophic forms in the forest defoliated by pests.

Полный текст,
WOS,
Scopus,
Scopus

Держатели документа:
Russian Acad Sci, Sukachev Inst Forestry, Krasnoyarsk 660036, Russia

Доп.точки доступа:
Krasnoshchekov, Y.N.; Vishnyakova, Z.V.; Perevoznikova, V.D.; Baranchikov, Y.N.

[Text] / T. T. Efremova [et al.] // Eurasian Soil Sci. - 2009. - Vol. 42, Is. 10. - P1120-1129, DOI 10.1134/S1064229309100068. - Cited References: 13. - This study was supported by the Russian Foundation for Basic Research, project no. 08-04-92501. . - 10. - ISSN 1064-2293РУБ Soil Science

Аннотация: In the litters (peaty, weakly decomposed, and strongly decomposed) of bog birch forests, the biochemical transformation of plant material includes several discrete stages. The best prediction of the decomposition stages is the set of indices characterizing the humus status of the soils: the C/N ratio, (I HA pound + I FA) pound/C(polysaccharides), and the contents of humic and fulvic acids of fraction 1 in the groups of plant debris of different sizes. The discrimination of the litters according to the level of the biochemical transformation of the organic residues was observed when using the (I HA pound + I FA) pound/C(polysaccharides) ratio, which is 6.3 in the peaty litter and 11.2 and 18.4 in the weakly decomposed and strongly decomposed litters, respectively. The biochemical classification of litters in the bog birch forests is in agreement with the morphological classification of litters.

Полный текст,
WOS,
Scopus

Держатели документа:
[Efremova, T. T.
Avrova, A. F.
Efremov, S. P.
Melent'eva, N. V.] Russian Acad Sci, Siberian Branch, Sukachev Inst Forestry, Krasnoyarsk 660036, Russia

Доп.точки доступа:
Efremova, T.T.; Avrova, A.F.; Efremov, S.P.; Melent'eva, N.V.; Russian Foundation for Basic Research [08-04-92501]

[Text] / L. V. Mukhortova [et al.] // Biol. Bull. - 2009. - Vol. 36, Is. 1. - P58-65, DOI 10.1134/S1062359009010099. - Cited References: 42. - This study was supported by the Ministry of Education and Science of the Russian Federation and the Civic Research and Development Foundation, United States (grant RUX0-002-KR-06); the program "Basic Research and Higher Education" (project no. BRHE Y4-B-02-06); the German Academic Exchange Service (DAAD) (grant A/05/05326); and the Russian Foundation for Basic Research (project nos. 06-04-90596-BNTS-a, 07-04-00515-a, and 07-04-00293-a). . - 8. - ISSN 1062-3590РУБ Biology

Аннотация: Changes in the composition of wood organic matter in dead-standing spruce and larch trees depending on the period after their death have been studied in the north of Central Siberia. The period after tree death has been estimated by means of cross-dating. The results show that changes in the composition of wood organic matter in 63% of cases are contingent on tree species. Wood decomposition in dead-standing trees is accompanied by an increase in the contents of alkali-soluble organic compounds. Lignin oxidation in larch begins approximately 80 years after tree death, whereas its transformation in spruce begins not earlier than after 100 years. In the forest-tundra of Central Siberia, the rate of wood organic matter transformation in dead-standing trees is one to two orders of magnitude lower than in fallen wood, which accounts for their role as a long-term store of carbon and mineral elements in these ecosystems.

Полный текст,
WOS,
Scopus

Держатели документа:
[Mukhortova, L. V.
Kirdyanov, A. V.] Russian Acad Sci, Akademgorodok, Sukachev Inst Forest, Siberian Branch, Krasnoyarsk 660036, Russia
[Myglan, V. S.] Siberian Fed Univ, Svobodnyi pr 79, Krasnoyarsk 660041, Russia
[Mukhortova, L. V.
Kirdyanov, A. V.] Russian Acad Sci, Siberian Branch, Sukachev Inst Forest, Krasnoyarsk 660036, Russia
[Myglan, V. S.] Siberian Fed Univ, Krasnoyarsk 660041, Russia
[Guggenberger, G.] Univ Halle Wittenberg, Inst Agrar & Ernahrungswissensch, D-06108 Halle, Germany

Доп.точки доступа:
Mukhortova, L.V.; Kirdyanov, A.V.; Myglan, V.S.; Guggenberger, G...; Ministry of Education and Science of the Russian Federation; Civic Research and Development Foundation, United States [RUX0-002-KR-06]; Basic Research and Higher Education [BRHE Y4-B-02-06]; German Academic Exchange Service (DAAD) [A/05/05326]; Russian Foundation for Basic Research [06-04-90596-BNTS-a, 07-04-00515-a, 07-04-00293-a]

/ L. V. Mukhortova // Folia Forestalia Polonica, Series A. - 2012. - Vol. 54, Is. 2. - P71-83 . - ISSN 0071-6677
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.

/ A. V. Klimchenko, S. V. Verkhovets // Folia Forestalia Polonica, Series A. - 2012. - Vol. 54, Is. 2. - P134-136 . - ISSN 0071-6677
Аннотация: This paper presents the results of the assessment of carbon stocks in the coarse woody debris in the prevailing forest types of the middle taiga. Carbon stocks in down coarse woody debris were estimated to total 58.2 million tonnes, 80% of which were found in dark conifer stands, 10% in deciduous forests, and 10% in pine forests and pine logging. In pine forests of the two dominant groups of forest types and pine logging, carbon stocks amounted to 1.5- 3.3 and 1.2 million tonnes, respectively. The values obtained in this study will be used to develop a database on ecosystem components required for quantifying carbon storage and fluxes.

Scopus

Держатели документа:
V.N. Sukachev Institute of Forest, SB, RAS, Academgorodok 50/28, 660036, Krasnoyarsk, Russian Federation
Siberian Federal University, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Klimchenko, A.V.; Verkhovets, S.V.

/ E. N. Valendik [et al.] // Mitigation and Adaptation Strategies for Global Change. - 2006. - Vol. 11, Is. 4. - P883-896, DOI 10.1007/s11027-005-9017-2 . - ISSN 1381-2386
Аннотация: Mechanical treatment and prescribed fire were used to restore a mixed conifer stand (Picea-Abies-Pinus) following mortality from an outbreak of Siberian moth (Dendrolimus superans sibiricus). Moth-killed stands often become dominated by Calamagrostis, a sod-forming grass. The large amount of woody debris and the sod hinder coniferous seedling establishment and development as well as creating conditions favorable to the establishment and propagation of wildfires. Fire has been demonstrated to be an effective method of reducing woody debris and eliminating sod, but the random nature and timing of wildfires often do not create conditions favorable for conifer regeneration. Our study was conducted in a mature fir dominated stand that died during an outbreak 6-8 years previously with most of the dead trees still standing. A bulldozer drove through the stand downing standing snags in late summer with 15-20 m between passes. Snags knocked down by the bulldozer and additional snag fall throughout the following winter increased downed dead wood 50-60% and large downed dead wood 80% compared to an adjacent untreated area. In June, a prescribed fire was set and fuel load consumption averaged 70%. Average soil temperatures during the burn ranged from 47В°C at a depth of 2 cm to 10В°C at 10 cm; hot enough to kill the grass. Following treatment, the potential for wildfire was reduced and the area was suitable for either natural conifer regeneration or planting without further mechanical site preparation. В© Springer 2006.

Scopus

Держатели документа:
V.N. Sukachev Institute of Forest, Russian Academy of Sciences, Siberian Branch, Krasnoyarsk, Russian Federation
USDA Forest Service, Northeastern Research Station, Durham, NH 03824, United States
USDA Forest Service, Missoula, MT 59807, United States
USDA Forest Service, Tahoe National Forest, Nevada City, CA 95959, United States

Доп.точки доступа:
Valendik, E.N.; Brissette, J.C.; Kisilyakhov, Y.K.; Lasko, R.J.; Verkhovets, S.V.; Eubanks, S.T.; Kosov, I.V.; Lantukh, A.Yu.

[Text] / E. A. Kukavskaya [et al.] // Environ. Res. Lett. - 2013. - Vol. 8, Is. 4. - Ст. 45034, DOI 10.1088/1748-9326/8/4/045034. - Cited References: 43. - The authors gratefully acknowledge financial support for this research from the National Aeronautics and Space Administration (NASA), the Land Cover Land Use Change (LCLUC) Science Program, the Russian Foundation for Basic Research (grant No. 12-04-31258), and the Russian Academy of Sciences, Siberian Branch. The authors would like to thank the three anonymous reviewers for their helpful comments and useful suggestions. . - 11. - ISSN 1748-9326РУБ Environmental Sciences + Meteorology & Atmospheric Sciences

Аннотация: The Russian boreal zone supports a huge terrestrial carbon pool. Moreover, it is a tremendous reservoir of wood products concentrated mainly in Siberia. The main natural disturbance in these forests is wildfire, which modifies the carbon budget and has potentially important climate feedbacks. In addition, both legal and illegal logging increase landscape complexity and affect burning conditions and fuel consumption. We investigated 100 individual sites with different histories of logging and fire on a total of 23 study areas in three different regions of Siberia to evaluate the impacts of fire and logging on fuel loads, carbon emissions, and tree regeneration in pine and larch forests. We found large variations of fire and logging effects among regions depending on growing conditions and type of logging activity. Logged areas in the Angara region had the highest surface and ground fuel loads (up to 135 t ha(-1)), mainly due to logging debris. This resulted in high carbon emissions where fires occurred on logged sites (up to 41 tC ha(-1)). The Shushenskoe/Minusinsk and Zabaikal regions are characterized by better slash removal and a smaller amount of carbon emitted to the atmosphere during fires. Illegal logging, which is widespread in the Zabaikal region, resulted in an increase in fire hazard and higher carbon emissions than legal logging. The highest fuel loads (on average 108 t ha(-1)) and carbon emissions (18-28 tC ha(-1)) in the Zabaikal region are on repeatedly burned unlogged sites where trees fell on the ground following the first fire event. Partial logging in the Shushenskoe/Minusinsk region has insufficient impact on stand density, tree mortality, and other forest conditions to substantially increase fire hazard or affect carbon stocks. Repeated fires on logged sites resulted in insufficient tree regeneration and transformation of forest to grasslands. We conclude that negative impacts of fire and logging on air quality, the carbon cycle, and ecosystem sustainability could be decreased by better slash removal in the Angara region, removal of trees killed by fire in the Zabaikal region, and tree planting after fires in drier conditions where natural regeneration is hampered by soil overheating and grass proliferation.

WOS,
Scopus

Держатели документа:
[Kukavskaya, E. A.
Ivanova, G. A.
Zhila, S. V.] Russian Acad Sci, Siberian Branch, VN Sukachev Inst Forest, Krasnoyarsk 660036, Russia
[Buryak, L. V.
Kalenskaya, O. P.] Siberian State Technol Univ, Krasnoyarsk 660049, Russia
[Conard, S. G.] US Forest Serv, Rocky Mt Res Stn, Missoula, MT 59807 USA
[Conard, S. G.] George Mason Univ, Fairfax, VA 22030 USA
[McRae, D. J.] Canadian Forest Serv, Nat Resources Canada, Sault Ste Marie, ON P6A 2E5, Canada
ИЛ СО РАН

Доп.точки доступа:
Kukavskaya, E.A.; Buryak, L.V.; Ivanova, G.A.; Conard, S.G.; Kalenskaya, O.P.; Zhila, S.V.; McRae, D.J.; National Aeronautics and Space Administration (NASA); Land Cover Land Use Change (LCLUC) Science Program; Russian Foundation for Basic Research [12-04-31258]; Russian Academy of Sciences, Siberian Branch

/ N. N. Koshurnikova [et al.] // Folia For. Pol. Ser. A. - 2015. - Vol. 57, Is. 4. - P218-223, DOI 10.1515/ffp-2015-0022 . - ISSN 0071-6677
Аннотация: Organic matter pool and its distribution between growing stock, dead wood and windfall in upland and lowland Pinus sibirica dominated forests of Central Siberia (along the Yenisei River) is evaluated. The average growing stock is changing with advancing age from 163.9 ± 20.4 to 295.4 m3 ha-1 thus reaching its maximum in the mature forests (337.0 ± 19.6 m3 ha-1). According to the data collected, stock variation coefficient numbers display acceptable (growing stock: 14-28%) and high variability (windfall and dead wood: 63-85%). Windfall prevails in the structure of coarse woody debris (CWD) from 130.8 ± 18.5 to 171.7 ± 20.1 m3 ha-1, with the stocks greatly exceeding the amount of growing wood stock in middle-aged and declining stands in 1.4 and 2.1 times, respectively. The observations comply with common trend of deterioration of dark coniferous forests in Siberia. © 2015 by Forest Research Institute.

Scopus

Держатели документа:
Siberian Federal University, Krasnoyarsk, Russian Federation
V.N. Sukachev Institute of Forest SB RAS, Krasnoyarsk, Russian Federation
Siberian State Technological University, Krasnoyarsk, Russian Federation
WWF, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Koshurnikova, N. N.; Verkhovets, S. V.; Antamoshkina, O. A.; Trofimova, N. V.; Zlenko, L. V.; Zhuikov, A. V.; Garmash, A. A.

/ E. A. Kukavskaya [et al.] // Contemp. Probl. Ecol. - 2017. - Vol. 10, Is. 1. - P62-70, DOI 10.1134/S1995425517010073 . - ISSN 1995-4255
Аннотация: Ground fuel loads and structure in dark-coniferous forests with the dominance of Siberian pine have been studied in the Central Siberian State Nature Biosphere Reserve located in the central-taiga zone of Central Siberia. The impacts of surface fires of various forms and severity on the living ground cover are examined. It is found that fires of low to moderate severity reduce ground fuel loads from 35–49 t/ha to 26–28 t/ha, while fires of moderate to high severity reduce them to 17–18 t/ha. Consumption of down woody debris varies from 3 to 29 t/ha, depending on the prefire fuel characteristics and fire form and severity. Steady fires spreading with the fire danger index PV-1 of 3919 ± 482 result in carbon emissions of 14.0 tC/ha from fires of low to moderate severity and 24.6 tC/ha from fires of moderate to high severity. The lowest carbon emissions (10.1 tC/ha) are noted for fast-moving fires spreading with PV-1 of 1167 ± 386. © 2017, Pleiades Publishing, Ltd.

Scopus,
Смотреть статью,
WOS

Держатели документа:
Sukachev Institute of Forest, Siberian Branch, Russian Academy of Sciences, Akademgorodok 50/28, Krasnoyarsk, Krasnoyarsk krai, Russian Federation
Siberian State Technological University, Krasnoyarsk, Krasnoyarsk krai, Russian Federation
Central Siberian State Nature Biosphere Reserve, Bor, Krasnoyarsk krai, Russian Federation

Доп.точки доступа:
Kukavskaya, E. A.; Buryak, L. V.; Kalenskaya, O. P.; Zarubin, D. S.

/ D. Schepaschenko [et al.] // Sci. Data. - 2017. - Vol. 4. - Ст. 170070, DOI 10.1038/sdata.2017.70. - Cited References:26. - This study has been partly supported by the DUE GLOBBIOMASS (contract 4000113100/14/l-NB) and IFBN (contract 4000114425/15/NL/FF/gp) projects funded by ESA. . - ISSN 2052-4463РУБ Multidisciplinary Sciences

Аннотация: The most comprehensive dataset of in situ destructive sampling measurements of forest biomass in Eurasia have been compiled from a combination of experiments undertaken by the authors and from scientific publications. Biomass is reported as four components: live trees (stem, bark, branches, foliage, roots); understory (above-and below ground); green forest floor (above-and below ground); and coarse woody debris (snags, logs, dead branches of living trees and dead roots), consisting of 10,351 unique records of sample plots and 9,613 sample trees from ca 1,200 experiments for the period 1930-2014 where there is overlap between these two datasets. The dataset also contains other forest stand parameters such as tree species composition, average age, tree height, growing stock volume, etc., when available. Such a dataset can be used for the development of models of biomass structure, biomass extension factors, change detection in biomass structure, investigations into biodiversity and species distribution and the biodiversity-productivity relationship, as well as the assessment of the carbon pool and its dynamics, among many others.

WOS,
Смотреть статью,
Scopus

Держатели документа:
Int Inst Appl Syst Anal, Ecosyst Serv & Management Program, A-2361 Laxenburg, Austria.
Bauman Moscow State Tech Univ, Fac Forestry, Mytishchi 141005, Russia.
Russian Acad Sci, Siberian Branch, Inst Forest, Krasnoyarsk 66036, Russia.
Russian Acad Sci, Ural Div, Bot Garden, Ekaterinburg 620144, Russia.
Natl Univ Life & Environm Sci Ukraine, UA-03041 Kiev, Ukraine.
Yangzhou Univ, Sch Hort & Plant Protect, Dept Ecol, Yangzhou 225009, Jiangsu, Peoples R China.
Ukrainian Natl Forestry Univ, Gen Chuprynka Str 103, UA-79057 Lvov, Ukraine.

Доп.точки доступа:
Schepaschenko, Dmitry; Shvidenko, Anatoly; Usoltsev, Vladimir; Lakyda, Petro; Luo, Yunjian; Vasylyshyn, Roman; Lakyda, Ivan; Myklush, Yuriy; See, Linda; McCallum, Ian; Fritz, Steffen; Kraxner, Florian; Obersteiner, Michael; DUE GLOBBIOMASS project - ESA [4000113100/14/l-NB]; IFBN project - ESA [4000114425/15/NL/FF/gp]

/ L. Mukhortova [et al.] // International Multidisciplinary Scientific GeoConference Surveying Geology and Mining Ecology Management, SGEM : International Multidisciplinary Scientific Geoconference, 2017. - Vol. 17: 17th International Multidisciplinary Scientific Geoconference, SGEM 2017 (29 June 2017 through 5 July 2017, ) Conference code: 130796, Is. 32. - P829-836, DOI 10.5593/sgem2017/32/S13.107 . -
Аннотация: The aim of this study was experimental assessing the emission of greenhouse gasses (CO2, CH4) from decomposed coarse woody debris in northern boreal forests of Siberia, where the main forest-forming species is larch (Larix gmelinii (Rupr.) Rupr.). Logs samples were collected in northern boreal larch forests of Central Evenkia (64°N, 100°E) at different stages of decomposition and placed in gas-tight boxes. Gas samples were measured in dynamics: at the beginning of the experiment and after 3 hour, 24 hours, after 3 and 6 days of incubation using Picarro G2201-i analyzer. Totally 12 samples were measured. Samples were divided into the three decay classes, based on visual and physical properties. The main basis for division is wood density and presence of bark and branches: decomposition class I - wood has not lost its solidity, stems have bark and branches; decomposition class II - wood has lost some of its solidity, bark easily flakes from wood, but bark and branches are presented on the stems; decomposition class III - wood has almost fully lost its initial solidity, some bark and large branches remain on the stems. It was found that carbon dioxide concentration increased gradually during incubation for logs at all decomposition stages. Coarse woody debris at early stages of decomposition produced 3.3-11.4 µg CO2 cm-3 h-1 for the decomposition class I and 1.9-6.2 µg CO2 cm-3 h-1 for the decomposition class II. Flux of carbon dioxide from coarse woody debris at the advanced stage of decomposition (decomposition class III) was significantly higher and comprised 0.9-12.4 µg CO2 cm-3 h-1. Carbon dioxide emission showed close correlation with temperature, class of decomposition and on type of rot (white or brown rot fungi consortia decomposed logs). Concentration of methane showed gradual increase of its concentration during 6 days incubation (from 1.84 to 2.87 and 3.57 ppm for I and II decomposition classes).Rate of methane increasing was dependent on temperature. If at the temperature +5°C increasing of methane concentration was slow and was observed only for decomposition class I and II, at the temperature +25°C logs of all decomposition classes increased concentration of methane from 1.82-1.84 ppm of the initial measurement to 2.06-2.87 ppm after the 6 days of incubation. © SGEM2017. All Rights Reserved.

Scopus,
Смотреть статью

Держатели документа:
V.N. Sukachev Institute of Forest FIC SB RAS, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Mukhortova, L.; Evgrafova, S.; Meteleva, M.; Krivobokov, L.

/ E. F. Vedrova, L. V. Mukhortova, O. V. Trefilova // Biol. Bull. - 2018. - Vol. 45, Is. 3. - P288-297, DOI 10.1134/S1062359018030111 . - ISSN 1062-3590
Аннотация: Old growth (mature and overmature) forests of Central Siberia accumulate carbon not only in the biomass but also in the phytodetritus, including in coarse woody debris (CWD), due to the slow seasonally depressed decomposition of organic matter. Slowly decomposing and accumulating on the soil surface stock of CWD, as a soil humus, serves as a long-term carbon pool in boreal forest ecosystems. © 2018, Pleiades Publishing, Inc.

Scopus,
Смотреть статью,
WOS

Держатели документа:
Sukachev Institute of Forests, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Vedrova, E. F.; Mukhortova, L. V.; Trefilova, O. V.

[Текст] : статья / Т. Т. Ефремова, С. П. Ефремов, А. Ф. Аврова // Лесоведение. - 2020. - № 6. - С. 548-559 . - ISSN 0024-1148

УДК

631.417.2

Аннотация: Впервые в однотипных условиях водно-минерального питания и гидротермического режима изучена специфика разложения погребенного дебриса и мохового детрита на примере эутрофного лесного массива долинных горных торфяников юга Енисейской Сибири, занятых болотными ельниками. Оценка по критерию Вилкоксона универсальных показателей гумусного состояния (степень гумификации – ∑ГК + ∑ФК, тип гумуса – отношение С_ГК : С_ФК, биохимическая активность – отношение С : N) показывает: в ходе торфогенеза за 600-летний период остатки моховой растительности и погребенные стволы ели различаются направленностью и темпами гумификации с высоким уровнем значимости. Установлена заторможенность процессов разложения органического вещества стволовой древесины, которая судя по отношению С : N 45–77, слабой степени гумификации 31.8–33.4% и неизменному фульватно-гуматному типу гумуса за весь период погребения остается практически стабильной. Явные преобразования органического вещества дебриса обнаружились в перестройке фракционного состава преимущественно гуминовых кислот (ГК). Отчетливое повышение содержания ГК-3 сопровождается почти пропорциональным снижением количества (ГК-1 + ГК-2), в сумме которых бурые фракции (ГК-1) составляют 70–86%. Горизонты торфяного субстрата, сложенные остатками лесных зеленых и гипновых мхов, характеризовались в ходе торфогенеза узким отношением С : N в среднем равным 13.5, нарастающей со временем захоронения высокой степенью гумификации 34.4–54.9%, гуматно-фульватным типом гумуса за счет примерно пропорционального роста содержания всех фракций гумусовых кислот. Оптическая плотность гуминовых кислот торфяного субстрата и погребенных стволов ели характеризуется низким и очень низким уровнем соответственно и свидетельствует об упрощенной молекулярной структуре гуминовых кислот и слабее выраженном превращении разлагающейся древесины в гумусовые вещества.
For the first time the specifics of buried debris and moss detritus decomposition was studied within the similar water, mineral and hydrothermal conditions on the example of eutrophic forest peat valleys of the south of Yenisey Siberia, covered by the swamp spruce forests. Using the Wilcoxon criterion the universal humus indices (humification rate – ∑HA + ∑FA, type of humus –С_HA : С_FA ratio, biochemical activity – С : N ratio) it was shown that during the peat forming over a 600-years period, the remains of moss and buried spruce trunks differ significantly in speed and overall direction of the humification process. The decomposition process of the tree trunks organics was found to be slow, and because of the С : N ratio of 45–77, low humification rate of 31.8–33.4% and constantly fulvic-humic type of humus it can be assumed to remain almost stable over the whole period. Evident transformation of the debris’ organic matter was found in the reorganization of the fraction composition of the humic acids most of all. Significant increase of HA-3 concentration is accompanied by the almost proportional decrease of (HA-1 + HA-2), where the rate of the brown fraction (HA-1) constitute 70–86%. Peat substrate horizons, comprised of the remains of the green forest mosses and hypnales mosses, were characterised by the narrow С : N ratio, equal 13.5 on average, and a high (34.4–54.9%) humification rate, further increasing over the exposition period, humic-fulvic type of humus due to almost equal concentrations of all kinds of the humus acids. Optical density of humic acids of the peat substrate and buried spruce trunks is on a low and very low levels respectively and indicates a simple structure of humic acids and lower rate of transformation of the rotting wood into a humus matter.

РИНЦ

Держатели документа:
Институт леса им. В.Н. Сукачева СО РАН – Обособленное подразделение ФИЦ КНЦ СО РАН

Доп.точки доступа:
Ефремова, Тамара Тимофеевна; Ефремов, Станислав Петрович; Аврова, Ада Федоровна

/ L. Mukhortova, N. Pashenova, M. Meteleva [et al.] // Forests. - 2021. - Vol. 12, Is. 5. - Ст. 624, DOI 10.3390/f12050624. - Cited References:106. - The research was funded by RFBR, Krasnoyarsk Territory and Krasnoyarsk Regional Fund of Science, project number 20-44-240008 and by State Assignment of Sukachev Institute of Forest SB RAS (Nffi 0287-2021-0008). . - ISSN 1999-4907РУБ Forestry

Аннотация: Carbon dioxide (CO2) and methane (CH4) are recognized as the main greenhouse gases causing climate warming. In forest ecosystems, the death of trees leads to the formation of coarse woody debris (CWD) that is one of the sources of greenhouse gas emissions due to wood decomposition. We quantified the CO2 and CH4 fluxes from CWD of larch (Larix gmelinii (Rupr.)) and birch (Betula tortuosa Ledeb.) collected in the northern boreal forests of Central Siberia. The CWD samples were incubated at +5, +15 and +25 degrees C. The CO2 and CH4 fluxes showed strong correlations with temperature, moisture, decomposition stage and the type of wood's rot. The temperature coefficient Q(10) indicated higher temperature sensitivity of CO2 flux within the temperature interval from +5 to +15 degrees C than from +15 to +25 degrees C. Methane flux had higher temperature sensitivity within the interval from +15 to +25 degrees C. It was found that, in boreal forests, CWD of early decay stage can serve as a source of methane to the atmosphere when air temperatures increased above +15 degrees C. Strong positive correlation between CH4 production and CO2 emission indicated a biological source and supported findings on aerobic origin of the main process contributing to the CH4 flux from decomposing CWD.

WOS

Держатели документа:
RAS, Krasnoyarsk Sci Ctr SB, Sukachev Inst Forest SB, Fed Res Ctr, Akademgorodok 50-28, Krasnoyarsk 660036, Russia.
Leibniz Univ Hannover, Inst Soil Sci, Herrenhauser Str 2, D-30419 Hannover, Germany.

Доп.точки доступа:
Mukhortova, Liudmila; Pashenova, Natalia; Meteleva, Maria; Krivobokov, Leonid; Guggenberger, Georg; RFBR, Krasnoyarsk Territory and Krasnoyarsk Regional Fund of Science [20-44-240008]; State Assignment of Sukachev Institute of Forest SB RAS [0287-2021-0008]