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Divergent changes in particulate and mineral-associated organic carbon upon permafrost thaw

文献类型：期刊论文

作者Liu, Futing3; Qin, Shuqi3,4; Fang, Kai3,4; Chen, Leiyi3; Peng, Yunfeng3; Smith, Pete2; Yang, Yuanhe3,4
刊名NATURE COMMUNICATIONS
出版日期2022
卷号13期号:1
DOI10.1038/s41467-022-32681-7
文献子类Article
英文摘要Permafrost thaw can stimulate microbial decomposition and induce soil carbon (C) loss, potentially triggering a positive C-climate feedback. However, earlier observations have concentrated on bulk soil C dynamics upon permafrost thaw, with limited evidence involving soil C fractions. Here, we explore how the functionally distinct fractions, including particulate and mineral-associated organic C (POC and MAOC) as well as iron-bound organic C (OC-Fe), respond to permafrost thaw using systematic measurements derived from one permafrost thaw sequence and five additional thermokarst-impacted sites on the Tibetan Plateau. We find that topsoil POC content substantially decreases, while MAOC content remains stable and OC-Fe accumulates due to the enriched Fe oxides after permafrost thaw. Moreover, the proportion of MAOC and OC-Fe increases along the thaw sequence and at most of the thermokarst-impacted sites. The relatively enriched stable soil C fractions would alleviate microbial decomposition and weaken its feedback to climate warming over long-term thermokarst development. Based on observations from thermokarst-impacted sites on the Tibetan Plateau, the authors find substantial particulate organic carbon loss but stable mineral-associated organic carbon and enriched iron-bound organic carbon upon permafrost thaw.
学科主题Multidisciplinary Sciences
出版地BERLIN
电子版国际标准刊号2041-1723
WOS关键词SOIL CARBON ; MATTER FORMATION ; CLIMATE-CHANGE ; STABILIZATION ; PERSISTENCE ; NITROGEN ; BIODEGRADABILITY ; DECOMPOSITION ; MECHANISMS ; RELEVANCE
WOS研究方向Science Citation Index Expanded (SCI-EXPANDED)
语种英语
WOS记录号WOS:000847533800011
出版者NATURE PORTFOLIO
资助机构National Natural Science Foundation of China [31988102, 31825006, 91837312, 32101332] ; Second Tibetan Plateau Scientific Expedition and Research (STEP) program [2019QZKK0106, 2019QZKK0302] ; Fundamental Research Foundation of Chinese Academy of Forestry [CAFYBB2020MA008]
源URL[http://ir.ibcas.ac.cn/handle/2S10CLM1/28833]  
专题植被与环境变化国家重点实验室
作者单位1.Univ Aberdeen, Inst Biol & Environm Sci, Aberdeen AB24 3UU, Scotland
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Chinese Acad Forestry, Key Lab Forest Ecol & Environm, Natl Forestry & Grassland Adm, Ecol & Nat Conservat Inst, Beijing 100091, Peoples R China
4.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China
推荐引用方式
GB/T 7714		 Liu, Futing,Qin, Shuqi,Fang, Kai,et al. Divergent changes in particulate and mineral-associated organic carbon upon permafrost thaw[J]. NATURE COMMUNICATIONS,2022,13(1).
APA Liu, Futing.,Qin, Shuqi.,Fang, Kai.,Chen, Leiyi.,Peng, Yunfeng.,...&Yang, Yuanhe.(2022).Divergent changes in particulate and mineral-associated organic carbon upon permafrost thaw.NATURE COMMUNICATIONS,13(1).
MLA Liu, Futing,et al."Divergent changes in particulate and mineral-associated organic carbon upon permafrost thaw".NATURE COMMUNICATIONS 13.1(2022).

入库方式： OAI收割

来源：植物研究所

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