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

doi:10.1038/s41467-022-32681-7

	Divergent changes in particulate and mineral-associated organic carbon upon permafrost thaw
	Liu, Futing 1; Qin, Shuqi 1,2; Fang, Kai 1,2; Chen, Leiyi 1; Peng, Yunfeng 1; Smith, Pete 3; Yang, Yuanhe1,2
	2022
发表期刊	NATURE COMMUNICATIONS
卷号	13 期号:1
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.
学科领域	Multidisciplinary Sciences
DOI	10.1038/s41467-022-32681-7
收录类别	SCI
语种	英语
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)
WOS记录号	WOS:000847533800011
出版者	NATURE PORTFOLIO
文献子类	Article
出版地	BERLIN
EISSN	2041-1723
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]
作者邮箱	yhyang@ibcas.ac.cn
作品OA属性	Green Published, gold
引用统计	被引频次：22[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	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.Chinese Acad Forestry, Key Lab Forest Ecol & Environm, Natl Forestry & Grassland Adm, Ecol & Nat Conservat Inst, Beijing 100091, Peoples R China 2.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Univ Aberdeen, Inst Biol & Environm Sci, Aberdeen AB24 3UU, Scotland
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).

条目包含的文件
文件名称/大小	文献类型	版本类型	开放类型	使用许可
Liu-2022-Divergent c（2102KB）	期刊论文	出版稿	开放获取	CC BY-NC-SA	浏览请求全文