气候变化领域集成服务门户(CCPortal): Dramatic Carbon Loss in a Permafrost Thaw Slump in the Tibetan Plateau is Dominated by the Loss of Microbial Necromass Carbon

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DOI	10.1021/acs.est.2c07274
	Dramatic Carbon Loss in a Permafrost Thaw Slump in the Tibetan Plateau is Dominated by the Loss of Microbial Necromass Carbon
	Zhou, Wenting; Ma, Tian; Yin, Xiufeng; Wu, Xiaodong; Li, Quanlian; Rupakheti, Dipesh; Xiong, Xin; Zhang, Qianggong; Mu, Cuicui; de Foy, Benjamin; Rupakheti, Maheswar; Kang, Shichang; Qin, Dahe
发表日期	2023
ISSN	0013-936X
EISSN	1520-5851
起始页码	6910
结束页码	6921
卷号	57 期号:17
英文摘要	Thaw slumps can lead to considerable carbon loss in permafrost regions, while the loss of components from two major origins, i.e., microbial and plant-derived carbon, during this process remains poorly understood. Here, we provide direct evidence that microbial necromass carbon is a major component of lost carbon in a retrogressive permafrost thaw slump by analyzing soil organic carbon (SOC), biomarkers (amino sugars and lignin phenols), and soil environmental variables in a typical permafrost thaw slump in the Tibetan Plateau. The retrogressive thaw slump led to a similar to 61% decrease in SOC and a similar to 25% SOC stock loss. As evident in the levels of amino sugars (average of 55.92 +/- 18.79 mg g-1 of organic carbon, OC) and lignin phenols (average of 15.00 +/- 8.05 mg g-1 OC), microbial-derived carbon (microbial necromass carbon) was the major component of the SOC loss, accounting for similar to 54% of the SOC loss in the permafrost thaw slump. The variation of amino sugars was mainly related to the changes in soil moisture, pH, and plant input, while changes in lignin phenols were mainly related to the changes in soil moisture and soil bulk density.
关键词	permafrost thaw slump soil organic carbon amino sugars lignin phenols microbial necromass carbon
英文关键词	SOIL ORGANIC-MATTER; FATTY-ACID PROFILES; EBOLING MOUNTAIN; ACTIVE LAYER; DECOMPOSITION; COMMUNITIES; STABILIZATION; PERSISTENCE; SUBSIDENCE; BACTERIAL
WOS研究方向	Engineering, Environmental ; Environmental Sciences
WOS记录号	WOS:000974591600001
来源期刊	ENVIRONMENTAL SCIENCE & TECHNOLOGY
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/283914
作者单位	Chinese Academy of Sciences; Chinese Academy of Sciences; University of Chinese Academy of Sciences, CAS; Lanzhou University; Chinese Academy of Sciences; Nanjing University of Information Science & Technology; Chinese Academy of Sciences; Chinese Academy of Sciences; Institute of Tibetan Plateau Research, CAS; Lanzhou University; Saint Louis University; Helmholtz Association; Helmholtz-Center Potsdam GFZ German Research Center for Geosciences; Chinese Academy of Sciences; University of Chinese Academy of Sciences, CAS; Chinese Academy of Sciences; Harbin Normal University
推荐引用方式 GB/T 7714	Zhou, Wenting,Ma, Tian,Yin, Xiufeng,et al. Dramatic Carbon Loss in a Permafrost Thaw Slump in the Tibetan Plateau is Dominated by the Loss of Microbial Necromass Carbon[J]. 中国科学院青藏高原研究所,2023,57(17).
APA	Zhou, Wenting.,Ma, Tian.,Yin, Xiufeng.,Wu, Xiaodong.,Li, Quanlian.,...&Qin, Dahe.(2023).Dramatic Carbon Loss in a Permafrost Thaw Slump in the Tibetan Plateau is Dominated by the Loss of Microbial Necromass Carbon.ENVIRONMENTAL SCIENCE & TECHNOLOGY,57(17).
MLA	Zhou, Wenting,et al."Dramatic Carbon Loss in a Permafrost Thaw Slump in the Tibetan Plateau is Dominated by the Loss of Microbial Necromass Carbon".ENVIRONMENTAL SCIENCE & TECHNOLOGY 57.17(2023).