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

[Text] / J. Boy [et al.] // Rev. Chil. Hist. Nat. - 2016. - Vol. 89. - Ст. 6, DOI 10.1186/s40693-016-0056-8. - Cited References:53. - We cordially thank the Instituto Antarctico Chileno (INACH-T 28-11) and the Deutsche Forschungsgemeinschaft (DFG, BO 3741-2-1, in the framework of the priority programme SPP 1158 Antarctic Research with comparative investigations in Arctic ice areas) for supporting this research and acknowledge the assistance of the staff at the Prof. Julio Escudero Station at Fildes. We are also grateful to Roger Michael Klatt, Pieter Wiese, Leopold Sauheitl, Joanna Weiss, Norman Gentsch and Christian Weiss for their support with this work. Special Acknwoledgements to Y. Villagra and F. Osorio for the identification of Lichens and Bryophytes species, respectively. We especially thank the reviewers for their appreciated input to the manuscript. . - ISSN 0716-078X. - ISSN 0717-6317РУБ Biodiversity Conservation + Ecology

Аннотация: Background: Maritime Antarctica is severely affected by climate change and accelerating glacier retreat forming temporal gradients of soil development. Successional patterns of soil development and plant succession in the region are largely unknown, as are the feedback mechanisms between both processes. Here we identify three temporal gradients representing horizontal and vertical glacier retreat, as well as formation of raised beaches due to isostatic uplift, and describe soil formation and plant succession along them. Our hypotheses are (i) plants in Antarctica are able to modulate the two base parameters in soil development, organic C content and pH, along the temporal gradients, leading to an increase in organic carbon and soil acidity at relatively short time scales, (ii) the soil development induces succession along these gradients, and (iii) with increasing soil development, bryophytes and Deschampsia antarctica develop mycorrhiza in maritime Antarctica in order to foster interaction with soil. Results: All temporal gradients showed soil development leading to differentiation of soil horizons, carbon accumulation and increasing pH with age. Photoautptroph succession occurred rapidly after glacier retreat, but occurrences of mosses and lichens interacting with soils by rhizoids or rhizines were only observed in the later stages. The community of ground dwelling mosses and lichens is the climax community of soil succession, as the Antarctic hairgrass D. antarctica was restricted to ornithic soils. Neither D. antarctica nor mosses at the best developed soils showed any sign of mycorrhization. Conclusion: Temporal gradients formed by glacier retreat can be identified in maritime Antarctic, where soil development and plant succession of a remarkable pace can be observed, although pseudo-succession occurs by fertilization gradients caused by bird feces. Thus, the majority of ice-free surface in Antarctica is colonized by plant communities which interact with soil by litter input rather than by direct transfer of photoassimilates to soil.

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Leibniz Univ Hannover, Inst Soil Sci, Herrenhauser Str 2, D-30419 Hannover, Germany.
Univ Austral Chile, Inst Ciencias Ambientales & Evolut, Valdivia, Chile.
Univ Stirling, Biol & Environm Sci, Stirling FK9 4LA, Scotland.
Univ Halle Wittenberg, Inst Soil Sci, D-06108 Halle, Germany.
VN Sukachev Inst Forest, Krasnoyarsk, Russia.

Доп.точки доступа:
Boy, Jens; Godoy, Roberto; Shibistova, Olga; Boy, Diana; McCulloch, Robert; de la Fuente, Alberto Andrino; Morales, Mauricio Aguirre; Mikutta, Robert; Guggenberger, Georg; Instituto Antarctico Chileno [INACH-T 28-11]; Deutsche Forschungsgemeinschaft (DFG) [BO 3741-2-1]; [SPP 1158]

/ N. Bischoff [et al.] // Biogeosciences. - 2017. - Vol. 14, Is. 10. - P2627-2640, DOI 10.5194/bg-14-2627-2017. - Cited References:58. - Financial support was provided by the German Federal Ministry of Education and Research (BMBF) in the framework of the KULUNDA project (01 LL 0905). Olga Shibistova and Georg Guggenberger appreciate funding from the Russian Ministry of Education and Science (No. 14.B25.31.0031). We thank the entire KULUNDA team for great collaboration and good team spirit. We are thankful to all farmers of the Kulunda steppe for collaboration during sampling and Lukas Gerhard for indispensable assistance in the field. Thanks for laboratory assistance to Silke Bokeloh, Elke Eichmann-Prusch, Roger-Michael Klatt, Pieter Wiese and Fabian Kalks, while Leopold Sauheitl is appreciated for guidance in the laboratory. Andrea Hartmann is acknowledged for helpful support on the scanning electron microscope. Thanks to Norman Gentsch for valuable scientific discussions on the manuscript, while we acknowledge Frank Schaarschmidt for statistical support. We thank two anonymous reviewers for valuable suggestions on the manuscript. The publication of this article was funded by the Open Access Fund of Leibniz Universitat Hannover. . - ISSN 1726-4170. - ISSN 1726-4189РУБ Ecology + Geosciences, Multidisciplinary

Аннотация: Macro-aggregates especially in agricultural steppe soils are supposed to play a vital role for soil organic carbon (OC) stabilization at a decadal timescale. While most research on soil OC stabilization in steppes focused on North American prairie soils of the Great Plains with information mainly provided by short-term incubation experiments, little is known about the agricultural steppes in southwestern Siberia, though they belong to the greatest conversion areas in the world and occupy an area larger than that in the Great Plains. To quantify the proportion of macro-aggregate-protected OC under different land use as function of land use intensity and time since land use change (LUC) from pasture to arable land in Siberian steppe soils, we determined OC mineralization rates of intact (250-2000 mu m) and crushed (250 mu m) macro-aggregates in long-term incubations over 401 days (20 degrees C; 60% water holding capacity) along two agricultural chronosequences in the Siberian Kulunda steppe. Additionally, we incubated bulk soil (2000 mu m) to determine the effect of LUC and subsequent agricultural use on a fast and a slow soil OC pool (labile vs. more stable OC), as derived from fitting exponential-decay models to incubation data. We hypothesized that (i) macro-aggregate crushing leads to increased OC mineralization due to an increasing microbial accessibility of a previously occluded labile macroaggregate OC fraction, and (ii) bulk soil OC mineralization rates and the size of the fast OC pool are higher in pasture than in arable soils with decreasing bulk soil OC mineralization rates and size of the fast OC pool as land use intensity and time since LUC increase. Against our hypothesis, OC mineralization rates of crushed macro-aggregates were similar to those of intact macro-aggregates under all land use regimes. Macro-aggregate-protected OC was almost absent and accounted for 1% of the total macro-aggregate OC content and to a maximum of 8 +/- 4% of mineralized OC. In accordance to our second hypothesis, highest bulk soil OC mineralization rates and sizes of the fast OC pool were determined under pasture, but mineralization rates and pool sizes were unaffected by land use intensity and time since LUC. However, at one chronosequence mean residence times of the fast and slow OC pool tended to decrease with increasing time since establishment of arable use. We conclude that the tillage-induced breakdown of macro-aggregates has not reduced the OC contents in the soils under study. The decline of OC after LUC is probably attributed to the faster soil OC turnover under arable land as compared to pasture at a reduced plant residue input.

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Держатели документа:
Leibniz Univ Hannover, Inst Soil Sci, D-30419 Hannover, Germany.
Martin Luther Univ Halle Wittenberg, Soil Sci & Soil Protect, D-06120 Halle, Germany.
Russian Acad Sci, VN Sukachev Inst Forest, Siberian Branch, Krasnoyarsk 660036, Russia.
Russian Acad Sci, Inst Water & Environm Problems, Siberian Branch, Barnaul 656038, Russia.
Altai State Univ, Fac Biol, Barnaul 656049, Russia.
Johann Heinrich von Thunen Inst, Inst Climate Smart Agr, D-38116 Braunschweig, Germany.

Доп.точки доступа:
Bischoff, Norbert; Mikutta, Robert; Shibistova, Olga; Puzanov, Alexander; Silanteva, Marina; Grebennikova, Anna; Fuss, Roland; Guggenberger, Georg; German Federal Ministry of Education and Research (BMBF) of the KULUNDA project [01 LL 0905]; Russian Ministry of Education and Science [14.B25.31.0031]; Open Access Fund of Leibniz Universitat Hannover

/ M. Palviainen, A. Lauren, J. Pumpanen [et al.] // Glob. Biogeochem. Cycle. - 2020. - Vol. 34, Is. 8. - Ст. e2020GB006612, DOI 10.1029/2020GB006612. - Cited References:102. - This research was part of the ARCTICFIRE and BOREALFIRE projects supported by the Academy of Finland (project numbers 286685, 294600, and 307222). We also acknowledge the funding from the Academy of Finland to strengthen university research profiles in Finland for the years 2017-2021 (funding decision 311925) and Reform water-project (funding decision 326818). H. Y. H. Chen acknowledges the funding from the Natural Sciences and Engineering Council of Canada (DG281886-14 and STPGP428641). B. Bond-Lamberty was supported as part of the Energy Exascale Earth System Model (E3SM) project funded by the U.S. Department of Energy, Office of Science, Office of Biological and Environmental Research. A. Prokushkin acknowledges the funding from The Russian Foundation for Basic Research (RFBR #18-05-60203). . - ISSN 0886-6236. - ISSN 1944-9224РУБ Environmental Sciences + Geosciences, Multidisciplinary + Meteorology &

Аннотация: Boreal forests store 30% of the world's terrestrial carbon (C). Consequently, climate change mediated alterations in the boreal forest fire regime can have a significant impact on the global C budget. Here we synthesize the effects of forest fires on the stocks and recovery rates of C in boreal forests using 368 plots from 16 long-term (>= 100 year) fire chronosequences distributed throughout the boreal zone. Forest fires led to a decrease in total C stocks (excluding mineral soil) by an average of 60% (range from 80%), which was primarily a result of C stock declines in the living trees and soil organic layer. Total C stocks increased with time since fire largely following a sigmoidal shape Gompertz function, with an average asymptote of 8.1 kg C m(-2). Total C stocks accumulated at a rate of 2-60 g m(-2) yr(-1)during the first 100 years. Potential evapotranspiration (PET) was identified as a significant driver of C stocks and their post-fire recovery, likely because it integrates temperature, radiation, and the length of the growing season. If the fire return interval shortens to <= 100 years in the future, our findings indicate that many boreal forests will be prevented from reaching their full C storage potential. However, our results also suggest that climate warming-induced increases in PET may speed up the post-fire recovery of C stocks.

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Univ Helsinki, Dept Forest Sci, Helsinki, Finland.
Univ Eastern Finland, Fac Sci & Forestry, Joensuu, Finland.
Univ Eastern Finland, Dept Environm & Biol Sci, Kuopio, Finland.
Univ Quebec Abitibi Temiscamingue, Forest Res Inst, Rouyn Noranda, PQ, Canada.
Univ Quebec Montreal, Ctr Forest Res, Montreal, PQ, Canada.
Pacific Northwest Natl Lab, Joint Global Change Res Inst, College Pk, MD USA.
Peking Univ, Coll Urban & Environm Sci, Minist Educ, Inst Ecol, Beijing, Peoples R China.
Peking Univ, Coll Urban & Environm Sci, Minist Educ, Key Lab Earth Surface Proc, Beijing, Peoples R China.
Wayne State Univ, Dept Biol Sci, Detroit, MI 48202 USA.
VN Sukachev Inst Forest SB RAS, Krasnoyarsk, Russia.
Lakehead Univ, Fac Nat Resources Management, Thunder Bay, ON, Canada.
Fujian Normal Univ, Minist Educ, Key Lab Humid Subtrop Ecogeog Proc, Fuzhou, Peoples R China.
Swedish Univ Agr Sci, Southern Swedish Forest Res Ctr, Uppsala, Sweden.
Nanyang Technol Univ, Asian Sch Environm, Singapore, Singapore.
Swedish Univ Agr Sci, Dept Forest Ecol & Management, Umea, Sweden.
Northeast Forestry Univ, Ctr Ecol Res, Harbin, Peoples R China.
Northeast Forestry Univ, Key Lab Sustainable Forest Ecosyst Management, Minist Educ, Harbin, Peoples R China.
Univ Eastern Finland, Dept Environm & Biol Sci, Joensuu, Finland.

Доп.точки доступа:
Palviainen, M.; Lauren, A.; Pumpanen, J.; Bergeron, Y.; Bond-Lamberty, B.; Larjavaara, M.; Kashian, D. M.; Koster, K.; Prokushkin, A.; Chen, H. Y. H.; Seedre, D. A.; Wardle, D. A.; Gundale, M. J.; Nilsson, M-C; Wang, F.; Berninger, F.; bergeron, yves; Bond-Lamberty, Benjamin; Academy of FinlandAcademy of Finland [286685, 294600, 307222, 311925, 326818]; Natural Sciences and Engineering Council of CanadaNatural Sciences and Engineering Research Council of Canada [DG281886-14, STPGP428641]; Energy Exascale Earth System Model (E3SM) project - U.S. Department of Energy, Office of Science, Office of Biological and Environmental ResearchUnited States Department of Energy (DOE); Russian Foundation for Basic Research (RFBR)Russian Foundation for Basic Research (RFBR) [18-05-60203]