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Storage, patterns, ...
Storage, patterns, and environmental controls of soil organic carbon stocks in the permafrost regions of the Northern Hemisphere
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- Wu, Tonghua (author)
- Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou),University of the Chinese Academy of Sciences
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- Wang, Dong (author)
- University of the Chinese Academy of Sciences
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- Mu, Cuicui (author)
- Lanzhou University
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- Zhang, Wenxin (author)
- Lund University,Lunds universitet,BECC: Biodiversity and Ecosystem services in a Changing Climate,Centrum för miljö- och klimatvetenskap (CEC),Naturvetenskapliga fakulteten,MERGE: ModElling the Regional and Global Earth system,Institutionen för naturgeografi och ekosystemvetenskap,Centre for Environmental and Climate Science (CEC),Faculty of Science,Dept of Physical Geography and Ecosystem Science,University of Copenhagen
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- Zhu, Xiaofan (author)
- University of the Chinese Academy of Sciences
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- Zhao, Lin (author)
- Nanjing University of Information Science and Technology,University of the Chinese Academy of Sciences
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- Li, Ren (author)
- University of the Chinese Academy of Sciences
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- Hu, Guojie (author)
- University of the Chinese Academy of Sciences
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- Zou, Defu (author)
- University of the Chinese Academy of Sciences
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- Chen, Jie (author)
- University of the Chinese Academy of Sciences
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- Wei, Xianhua (author)
- University of the Chinese Academy of Sciences
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- Wen, Amin (author)
- University of the Chinese Academy of Sciences
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- Shang, Chengpeng (author)
- University of the Chinese Academy of Sciences
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- La, Yune (author)
- University of the Chinese Academy of Sciences
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- Lou, Peiqing (author)
- University of the Chinese Academy of Sciences
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- Ma, Xin (author)
- University of the Chinese Academy of Sciences
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- Wu, Xiaodong (author)
- University of the Chinese Academy of Sciences
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(creator_code:org_t)
- Elsevier BV, 2022
- 2022
- English.
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In: Science of the Total Environment. - : Elsevier BV. - 0048-9697. ; 828
- Related links:
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http://dx.doi.org/10...
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Abstract
Subject headings
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- Large stocks of soil organic carbon (SOC) accumulated in the Northern Hemisphere permafrost regions may be vulnerable to climatic warming, but global estimates of SOC distribution and magnitude in permafrost regions still have large uncertainties. Based on multiple high-resolution environmental variables and a compiled soil sample dataset (>3000 soil profiles), we used machine-learning methods to estimate the size and spatial distribution of SOC for the top 3 m soils in the Northern Hemisphere permafrost regions. We also identified key environmental predictors of SOC. The results showed that the SOC storage for the top 3 m soil was 1079 ± 174 Pg C across the Northern Hemisphere permafrost regions (20.8 × 106 km2), including 1057 ± 167 Pg C in the northern permafrost regions and 22 ± 7 Pg C in the Third Pole permafrost regions. The mean annual air temperature and NDVI are the main controlling factors for the spatial distribution of SOC stocks in the northern and the Third Pole permafrost regions. Our estimations were more accurate than the existing global SOC stock maps. The results improve our understanding of the regional and global permafrost carbon cycle and their feedback to the climate system.
Subject headings
- LANTBRUKSVETENSKAPER -- Lantbruksvetenskap, skogsbruk och fiske -- Markvetenskap (hsv//swe)
- AGRICULTURAL SCIENCES -- Agriculture, Forestry and Fisheries -- Soil Science (hsv//eng)
- NATURVETENSKAP -- Geovetenskap och miljövetenskap (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences (hsv//eng)
Keyword
- Machine learning
- Northern Hemisphere
- Permafrost
- Soil organic carbon
Publication and Content Type
- art (subject category)
- ref (subject category)
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To the university's database
- By the author/editor
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Wu, Tonghua
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Wang, Dong
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Mu, Cuicui
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Zhang, Wenxin
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Zhu, Xiaofan
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Zhao, Lin
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show more...
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Li, Ren
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Hu, Guojie
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Zou, Defu
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Chen, Jie
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Wei, Xianhua
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Wen, Amin
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Shang, Chengpeng
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La, Yune
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Lou, Peiqing
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Ma, Xin
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Wu, Xiaodong
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show less...
- About the subject
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- AGRICULTURAL SCIENCES
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AGRICULTURAL SCI ...
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and Agriculture Fore ...
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and Soil Science
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Earth and Relate ...
- Articles in the publication
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Science of the T ...
- By the university
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Lund University