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

/ 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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Держатели документа:
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]

/ D. F. Zhirnova, L. V. Belokopytova, E. A. Babushkina [et al.] // Trees-Struct. Funct. - 2020, DOI 10.1007/s00468-020-02050-2. - Cited References:109. - This study was carried out in the framework of the state assignment FSRZ-2020-0010 of the Ministry of Science and Higher Education of the Russian Federation, and supported by Russian Science Foundation, project no. 19-77-30015. . - Article in press. - ISSN 0931-1890. - ISSN 1432-2285РУБ Forestry

Аннотация: Quantitative wood anatomy can provide detailed insight into adaptation of trees to changing environment, especially on the borders of species distribution ranges. This study investigated wood anatomy of Pinus sylvestris L., Pinus sibirica Du Tour, and Picea obovata Ledeb. near the forest line in the Western Sayan Mountains, where local climate changes rapidly. Anatomical traits reflecting three developmental stages of conifer tracheids (division = cell number, cell enlargement = radial diameter, and secondary wall deposition = cell wall thickness) were calculated for earlywood, latewood and total tree ring over 50 years. Similar earlywood anatomical structure and low between-trait correlations (r = 0.21 horizontal ellipsis 67) were observed in all species, which supports prevalence of external impact on its formation, i.e. that shared habitat, climate, and similar habitus provide common trade-off between hydraulic efficiency and safety. Also, stronger nonlinearity of relationship between cell number and radial diameter in earlywood decreased correlations between them. In latewood, anatomical traits are strongly interconnected (r = 0.63 horizontal ellipsis 93) for all species. However, Siberian pine has significantly less pronounced latewood; later switch from earlywood and different strategy of carbon allocation are proposed as possible reasons. Length of vegetative season and sum of temperatures above thresholds 5 degrees C and 8 degrees C have no significant correlations with anatomical traits, but extremes of these temperature variables led to forming more pronounced latewood (higher proportion of latewood cells with thicker walls) during warm/long vegetative seasons than during short/cool ones.

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Держатели документа:
Siberian Fed Univ, Khakass Tech Inst, Abakan, Russia.
Univ Cambridge, Dept Geog, Cambridge, England.
Stefan Cel Mare Univ Suceava, Suceava, Romania.
Siberian Fed Univ, Krasnoyarsk, Russia.
Russian Acad Sci, Sukachev Inst Forest, Siberian Branch, Krasnoyarsk, Russia.
Russian Acad Sci, Ctr Forest Ecol & Prod, Moscow, Russia.

Доп.точки доступа:
Zhirnova, Dina F.; Belokopytova, Liliana, V; Babushkina, Elena A.; Crivellaro, Alan; Vaganov, Eugene A.; Ministry of Science and Higher Education of the Russian Federation [FSRZ-2020-0010]; Russian Science FoundationRussian Science Foundation (RSF) [19-77-30015]