Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1111/gcb.14421 |
Tundra landscape heterogeneity, not interannual variability, controls the decadal regional carbon balance in the Western Russian Arctic | |
Treat, Claire C.1; Marushchak, Maija E.1; Voigt, Carolina1; Zhang, Yu2; Tan, Zeli3,4; Zhuang, Qianlai4; Virtanen, Tarmo A.5; Rasanen, Aleksi5,6; Biasi, Christina1; Hugelius, Gustaf7; Kaverin, Dmitry8; Miller, Paul A.9; Stendel, Martin10; Romanovsky, Vladimir11,12; Rivkin, Felix13; Martikainen, Pertti J.1; Shurpali, Narasinha J.1 | |
2018-11-01 | |
发表期刊 | GLOBAL CHANGE BIOLOGY
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ISSN | 1354-1013 |
EISSN | 1365-2486 |
出版年 | 2018 |
卷号 | 24期号:11页码:5188-5204 |
文章类型 | Article |
语种 | 英语 |
国家 | Finland; Canada; USA; Norway; Sweden; Russia; Denmark |
英文摘要 | Across the Arctic, the net ecosystem carbon (C) balance of tundra ecosystems is highly uncertain due to substantial temporal variability of C fluxes and to landscape heterogeneity. We modeled both carbon dioxide (CO2) and methane (CH4) fluxes for the dominant land cover types in a similar to 100-km(2) sub-Arctic tundra region in northeast European Russia for the period of 2006-2015 using process-based biogeochemical models. Modeled net annual CO2 fluxes ranged from --300 g C m(-2) year(-1) [net uptake] in a willow fen to 3 g Cm-2 year(-1) [net source] in dry lichen tundra. Modeled annual CH4 emissions ranged from -0.2 to 22.3 g Cm-2 year(-1) at a peat plateau site and a willow fen site, respectively. Interannual variability over the decade was relatively small (20%-25%) in comparison with variability among the land cover types (150%). Using high-resolution land cover classification, the region was a net sink of atmospheric CO2 across most land cover types but a net source of CH4 to the atmosphere due to high emissions from permafrost-free fens. Using a lower resolution for land cover classification resulted in a 20%-65% underestimation of regional CH4 flux relative to high-resolution classification and smaller (10%) overestimation of regional CO2 uptake due to the underestimation of wetland area by 60%. The relative fraction of uplands versus wetlands was key to determining the net regional C balance at this and other Arctic tundra sites because wetlands were hot spots for C cycling in Arctic tundra ecosystems. |
英文关键词 | ecosystem modeling methane net ecosystem CO2 exchange peatland permafrost regional carbon balance Russia Tundra |
领域 | 气候变化 ; 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000447760300016 |
WOS关键词 | KUPARUK RIVER-BASIN ; ECOSYSTEM CO2 EXCHANGE ; METHANE EMISSIONS ; VEGETATION MODEL ; SPATIAL VARIATION ; PERMAFROST THAW ; ALASKA ; FLUXES ; DIOXIDE ; LAKES |
WOS类目 | Biodiversity Conservation ; Ecology ; Environmental Sciences |
WOS研究方向 | Biodiversity & Conservation ; Environmental Sciences & Ecology |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/17716 |
专题 | 气候变化 资源环境科学 |
作者单位 | 1.Univ Eastern Finland, Dept Biol & Environm Sci, Biogeochem Res Grp, Kuopio, Finland; 2.Nat Resources Canada, Canada Ctr Mapping & Earth Observat, Ottawa, ON, Canada; 3.Pacific Northwest Natl Lab, Richland, WA 99352 USA; 4.Purdue Univ, Dept Earth Atmospher & Planetary Sci, W Lafayette, IN 47907 USA; 5.Univ Helsinki, Fac Biol & Environm Sci, Ecosyst & Environm Res Programme, Helsinki, Finland; 6.Norwegian Univ Sci & Technol, Dept Geog, Trondheim, Norway; 7.Stockholm Univ, Dept Phys Geog, Bolin Ctr Climate Res, Stockholm, Sweden; 8.SC RAS, Inst Biol Komi, Syktyvkar, Russia; 9.Lund Univ, Geoctr 2, Geobiosphere Ctr, Dept Earth & Ecosyst Sci, Lund, Sweden; 10.Danish Meteorol Inst, Dept Arctic & Climate, Copenhagen O, Denmark; 11.Univ Alaska Fairbanks, Inst Geophys, Fairbanks, AK 99775 USA; 12.SB RAS, Tyumen Sci Ctr, Earth Cryosphere Inst, Tyumen, Russia; 13.GIS, Dept Geocryol Mapping, Moscow, Russia |
推荐引用方式 GB/T 7714 | Treat, Claire C.,Marushchak, Maija E.,Voigt, Carolina,et al. Tundra landscape heterogeneity, not interannual variability, controls the decadal regional carbon balance in the Western Russian Arctic[J]. GLOBAL CHANGE BIOLOGY,2018,24(11):5188-5204. |
APA | Treat, Claire C..,Marushchak, Maija E..,Voigt, Carolina.,Zhang, Yu.,Tan, Zeli.,...&Shurpali, Narasinha J..(2018).Tundra landscape heterogeneity, not interannual variability, controls the decadal regional carbon balance in the Western Russian Arctic.GLOBAL CHANGE BIOLOGY,24(11),5188-5204. |
MLA | Treat, Claire C.,et al."Tundra landscape heterogeneity, not interannual variability, controls the decadal regional carbon balance in the Western Russian Arctic".GLOBAL CHANGE BIOLOGY 24.11(2018):5188-5204. |
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