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

[Text] / B. B. Stephens [et al.] // Science. - 2007. - Vol. 316, Is. 5832. - P1732-1735, DOI 10.1126/science.1137004. - Cited References: 32 . - 4. - ISSN 0036-8075РУБ Multidisciplinary Sciences

Аннотация: Measurements of midday vertical atmospheric CO(2) distributions reveal annual-mean vertical CO(2) gradients that are inconsistent with atmospheric models that estimate a large transfer of terrestrial carbon from tropical to northern latitudes. The three models that most closely reproduce the observed annual-mean vertical CO(2) gradients estimate weaker northern uptake of -1.5 petagrams of carbon per year (Pg C year(-1)) and weaker tropical emission of +0.1 Pg C year(-1) compared with previous consensus estimates of -2.4 and +1.8 Pg C year(-1), respectively. This suggests that northern terrestrial uptake of industrial CO(2) emissions plays a smaller role than previously thought and that, after subtracting land-use emissions, tropical ecosystems may currently be strong sinks for CO(2).

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Держатели документа:
Natl Ctr Atmospher Res, Boulder, CO 80305 USA
Purdue Univ, Dept Earth & Atmospher Sci, W Lafayette, IN 47907 USA
Natl Ocean & Atmospher Adm, Boulder, CO 80305 USA
Lab Sci Climat & Environm, F-91191 Gif Sur Yvette, France
Tohoku Univ, Ctr Atmospher & Ocean Studies, Sendai, Miyagi 9808578, Japan
Natl Inst Environm Studies, Tsukuba, Ibaraki 3058506, Japan
Nagoya Univ, Nagoya Univ, Grad Sch Environm Studies, Nagoya, Aichi 4648601, Japan
Cent Aerol Observ, Dolgoprudnyi 141700, Russia
Univ Leeds, Sch Geog, Leeds LS2 9JT, W Yorkshire, England
Max Planck Inst Biogeochem, D-07701 Jena, Germany
Sukachev Inst Forest, Krasnoyarsk 660036, Russia
CSIRO Marine & Atmospher Res, Aspendale, Vic 3195, Australia
Colorado State Univ, Dept Atmospher Sci, Ft Collins, CO 80523 USA

Доп.точки доступа:
Stephens, B.B.; Gurney, K.R.; Tans, P.P.; Sweeney, C...; Peters, W...; Bruhwiler, L...; Ciais, P...; Ramonet, M...; Bousquet, P...; Nakazawa, T...; Aoki, S...; Machida, T...; Inoue, G...; Vinnichenko, N...; Lloyd, J...; Jordan, A...; Heimann, M...; Shibistova, O...; Langenfelds, R.L.; Steele, L.P.; Francey, R.J.; Denning, A.S.

[Text] / L. B. Marchesini [et al.] // Biogeosciences. - 2007. - Vol. 4, Is. 4. - P581-595. - Cited References: 64 . - 15. - ISSN 1726-4170РУБ Ecology + Geosciences, Multidisciplinary

Аннотация: Steppe ecosystems represent an interesting case in which the assessment of carbon balance may be performed through a cross validation of the eddy covariance measurements against ecological inventory estimates of carbon exchanges (Ehman et al., 2002; Curtis et al., 2002). Indeed, the widespread presence of ideal conditions for the applicability of the eddy covariance technique, as vast and homogeneous grass vegetation cover over flat terrains (Baldocchi, 2003), make steppes a suitable ground to ensure a constrain to flux estimates with independent methodological approaches. We report about the analysis of the carbon cycle of a true steppe ecosystem in southern Siberia during the growing season of 2004 in the framework of the TCOS-Siberia project activities performed by continuous monitoring of CO2 fluxes at ecosystem scale by the eddy covariance method, fortnightly samplings of phytomass, and ingrowth cores extractions for NPP assessment, and weekly measurements of heterotrophic component of soil CO2 effluxes obtained by an experiment of root exclusion. The carbon balance of the monitored natural steppe was, according to micrometeorological measurements, a sink of carbon of 151.7 +/- 36.9 g Cm-2, cumulated during the growing season from May to September. This result was in agreement with the independent estimate through ecological inventory which yielded a sink of 150.1 g Cm-2 although this method was characterized by a large uncertainty (+/- 130%) considering the 95% confidence interval of the estimate. Uncertainties in belowground process estimates account for a large part of the error. Thus, in particular efforts to better quantify the dynamics of root biomass (growth and turnover) have to be undertaken in order to reduce the uncertainties in the assessment of NPP. This assessment should be preferably based on the application of multiple methods, each one characterized by its own merits and flaws.

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Держатели документа:
Univ Tuscia, Dept Forest Resources & Environm, I-01100 Viterbo, Italy
Max Planck Inst Biogeochem, D-07745 Jena, Germany
RAS, SB, Sukachev Inst Forest, Krasnoyarsk 660036, Russia

Доп.точки доступа:
Marchesini, L.B.; Papale, D...; Reichstein, M...; Vuichard, N...; Tchebakova, N...; Valentini, R...

/ C. T. Atere, T. D. Ge, Z. K. Zhu [et al.] // Plant Soil. - 2019. - Vol. 445, Is. 1-2. - P153-167, DOI 10.1007/s11104-018-03905-x. - Cited References:91. - This study was financially supported by the National key research and development program (2016YFE0101100), the Australia-China Joint Research Centre Healthy Soils for Sustainable Food Production and Environmental Quality (ACSRF48165); the National Natural Science Foundation of China (41671292; 41522107); the Strategic Priority Research Program of the Chinese Academy of Sciences (XDB15020401); the Youth Innovation Team Project of ISA, CAS (2017QNCXTD_GTD); the Chinese Academy of Sciences President's International Fellowship Initiative to Georg Guggenberger (2018VCA0031); and Public Service Technology Centre, Institute of Subtropical Agriculture, Chinese Academy of Sciences. Dr. Cornelius T. Atere acknowledges the PhD training grant from the Nigerian Tertiary Education Trust Fund through the Obafemi Awolowo University, Ile-Ife, Nigeria. . - ISSN 0032-079X. - ISSN 1573-5036РУБ Agronomy + Plant Sciences + Soil Science

Аннотация: Background and aims Water and nutrient management influences the allocation and stabilisation of newly assimilated carbon (C) in paddy soils. This study aimed to determine the belowground allocation of C assimilated by rice and the subsequent C stabilisation in soil aggregates and as mineral-organic associates depending on combined alternate wetting and drying (AWD) versus continuous flooding (CF) and P fertilisation. Methods We continuously labelled rice plants in (CO2)-C-13 atmosphere under AWD versus CF water management, and at two P fertilisation levels (0 or 80 mg P kg(-1) soil). The C-13 allocation to soil and its incorporation into the wet-sieved aggregate size classes and density fractions of the rhizosphere and bulk soils were analysed 6, 14, and 22 days after the labelling was started (D6, D14, and D22, respectively). Results Under both water regimes and P fertilisation levels, the proportion of photoassimilates was the highest in the silt- and clay-size aggregate classes and in the mineral-associated fraction. On D6 and D14, P fertilization resulted in smaller 13C incorporation into soil, independent of water management. In the rhizosphere soil, at D22, P fertilisation increased 13C incorporation over no P amendment in macroaggregates (>250 mu m) by 32% (AWD) and 42% (CF), in microaggregates (250-53 mu m) by 97% (CF), and in the silt + clay size class (<53 mu m) by 83% (CF). Further, P fertilisation led to larger C-13 incorporation into the rhizosphere soil light fraction (75% at AWD and 90% at CF) and dense fraction (38% and 45%, respectively), and into the bulk soil macroaggregates (71% and 78%, respectively). Conclusions Phosphorus fertilisation increased the contents of recent photoassimilates in soil aggregate classes with longer residence time as well as of the particulate organic matter with the continuation of plant growth. This positive response of the stabilisation of recent plant photosynthates in soil to P fertilisation can increase the potential of paddy soil for C sequestration. This potential is not limited by the introduction of alternate wetting and drying water-saving technique.

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Держатели документа:
Chinese Acad Sci, Key Lab Agroecol Proc Subtrop Reg, Inst Subtrop Agr, Changsha 410125, Hunan, Peoples R China.
Chinese Acad Sci, Changsha Res Stn Agr & Environm Monitoring, Inst Subtrop Agr, Changsha 410125, Hunan, Peoples R China.
Univ Chinese Acad Sci, Beijing 100049, Peoples R China.
Obafemi Awolowo Univ, Fac Agr, Dept Soil Sci & Land Resources Management, Ife 220005, Nigeria.
Leibniz Univ Hannover, Inst Soil Sci, D-30419 Hannover, Germany.
RAS, SB, VN Sukachev Inst Forest, Krasnoyarsk 660036, Russia.

Доп.точки доступа:
Atere, Cornelius Talade; Ge, Tida; Zhu, Zhenke; Liu, Shoulong; Huang, Xizhi; Shibsitova, Olga; Guggenberger, Georg; Wu, Jinshui; National key research and development program [2016YFE0101100]; Australia-China Joint Research Centre Healthy Soils for Sustainable Food Production and Environmental Quality [ACSRF48165]; National Natural Science Foundation of ChinaNational Natural Science Foundation of China [41671292, 41522107]; Strategic Priority Research Program of the Chinese Academy of SciencesChinese Academy of Sciences [XDB15020401]; Youth Innovation Team Project of ISA, CAS [2017QNCXTD_GTD]; Chinese Academy of Sciences President's International Fellowship Initiative [2018VCA0031]; Public Service Technology Centre, Institute of Subtropical Agriculture, Chinese Academy of Sciences; Nigerian Tertiary Education Trust Fund through the Obafemi Awolowo University, Ile-Ife, Nigeria

/ A. Arzac, M. A. Tabakova, K. Khotcinskaia [et al.] // Dendrochronologia. - 2021. - Vol. 67. - Ст. 125842, DOI 10.1016/j.dendro.2021.125842. - Cited References:75. - This work was carried out with the support of the Ministry of Science and Higher Education of the Russian Federation [project FSRZ-2020-0014; measurements] and the Russian Science Foundation [Grant 18-74-10048; samplings, data analysis, manuscript preparation]. The administrations of the National Park "Shushensky bor" and of experimental plot "Pogorelsky bor" allowed the samplings. A. Rubtsov provided soil water content data. We thank T. Stepina for the English language edition and the editors and anonymous reviewers for their comments and suggestions, which significantly improved the manuscript. . - ISSN 1125-7865. - ISSN 1612-0051РУБ Forestry + Geography, Physical

Аннотация: Climate change affects forest dynamics with potential consequences for essential ecosystem services. The retrospective analysis of secondary growth unveils the effect of climate on forests. However, most tree-ring studies focus on dominant trees, and less is known about the climatic response of their neighbor suppressed trees. We evaluated the influence of tree social status (dominant/suppressed) on climate response in Pinus sylvestris L. trees from two sites with contrasting water availability conditions in the forest-steppe ecotone in southern Siberia. Tree-ring width and intra-annual density fluctuations (IADFs) were used as proxies. Late spring to early summer conditions were the main climate drivers in both tree social status, but the climate response of suppressed trees was stronger and had a longer time window (May-June). IADFs' occurrence was controlled by temperature and its frequency was modulated by local conditions, being more common at the dry site, with tree status just marginally significant. Our results suggest that under the projected warmer and drier climate, suppressed trees in southern Siberia will be prone to increased water shortage, leading to possible higher mortality of more sensitive suppressed trees, with potential consequences for carbon sequestration in the forest-steppe ecosystems in southern Siberia.

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Держатели документа:
Siberian Fed Univ, 79 Svobodny Pr, Krasnoyarsk 660041, Russia.
Fed Res Ctr Krasnoyarsk Sci Ctr SB RAS, VN Sukachev Inst Forest SB RAS, Akad Gorodok 50-28, Krasnoyarsk 660036, Russia.
Univ Valladolid, IuFOR EiFAB, Soria, Spain.

Доп.точки доступа:
Arzac, Alberto; Tabakova, Maria A.; Khotcinskaia, Kseniia; Koteneva, Anastasia; Kirdyanov, Alexander V.; Olano, Jose M.; Ministry of Science and Higher Education of the Russian Federation [FSRZ-2020-0014]; Russian Science FoundationRussian Science Foundation (RSF) [18-74-10048]