气候变化领域集成服务门户(CCPortal): Change in soil organic carbon and its climate drivers over the Tibetan Plateau in CMIP5 earth system models

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DOI	10.1007/s00704-021-03631-y
	Change in soil organic carbon and its climate drivers over the Tibetan Plateau in CMIP5 earth system models
	Li, Suosuo; Liu, Yuanpu; Lyu, Shihua; Wang, Shaoying; Pan, Yongjie; Qin, Yanyan
通讯作者	Li, SS (通讯作者)，Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Key Lab Land Surface Proc & Climate Change Cold &, Lanzhou 730000, Peoples R China.
发表日期	2021
ISSN	0177-798X
EISSN	1434-4483
起始页码	187
结束页码	196
卷号	145 期号:1-2
英文摘要	Soil organic carbon (SOC) is the largest carbon pool in the terrestrial carbon cycle, which is closely linked to climate change and global warming feedbacks. Based on proxy observation data and outputs from the fifth phase of the Coupled Model Inter-comparison Project (CMIP5), we analyzed quantitatively the spatial distribution and temporal change for SOC using boosted regression trees (BRT) over the Tibetan Plateau (TP). The ensemble proxy observation SOC stock data indicated a decreasing spatial distribution from southeast to northwest over the TP. We used data from ten CMIP5 earth system models (ESMs) for SOC, which exhibited differences. However, the CMIP5 multi-model ensemble (MME) result presented a similar spatial distribution pattern to the ensemble proxy observation SOC, while SOC storage and turnover times from the CMIP5 MME model were less than the ensemble proxy observation. The BRT results indicated that air temperature (Ta) accounted for 44.81% of the relative contribution and was the most influential variable on MME SOC. This was followed by net primary production (NPP), with a 19.09% relative contribution. The relative influence of the top 10 cm soil temperature, total soil water, and precipitation on MME SOC was 13.55%, 12.68%, and 9.87%, respectively. Using the BRT method to determine the spatial distribution of relative contribution of SOC for these five variables demonstrated that Ta was mainly higher over the central and northwestern regions of the TP, and NPP was higher over the western central regions and along the plateau's eastern edge. The statistical frequency of maximum relative contribution to SOC for the five variables indicated that the relative contribution of NPP covered the largest area, with 32% of the total grid numbers, followed by Ta, with 25%.
关键词	NET PRIMARY PRODUCTION TURNOVER TIMES PERMAFROST UNCERTAINTY VEGETATION PATTERNS IMPACTS CHINA WATER FLUX
语种	英语
WOS研究方向	Meteorology & Atmospheric Sciences
WOS类目	Meteorology & Atmospheric Sciences
WOS记录号	WOS:000643182000001
来源期刊	THEORETICAL AND APPLIED CLIMATOLOGY
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/253940
作者单位	[Li, Suosuo; Wang, Shaoying; Pan, Yongjie; Qin, Yanyan] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Key Lab Land Surface Proc & Climate Change Cold &, Lanzhou 730000, Peoples R China; [Liu, Yuanpu] China Meteorol Adm, Key Lab Arid Climat Change & Reduct Disaster, Gansu Prov & Key Lab Arid Climat Change & Reduct, Inst Arid Meteorol, Lanzhou 730020, Peoples R China; [Lyu, Shihua] Chengdu Univ Informat Technol, Sch Atmospher Sci, Plateau Atmosphere & Environm Key Lab Sichuan Pro, Chengdu 610225, Peoples R China
推荐引用方式 GB/T 7714	Li, Suosuo,Liu, Yuanpu,Lyu, Shihua,et al. Change in soil organic carbon and its climate drivers over the Tibetan Plateau in CMIP5 earth system models[J]. 中国科学院西北生态环境资源研究院,2021,145(1-2).
APA	Li, Suosuo,Liu, Yuanpu,Lyu, Shihua,Wang, Shaoying,Pan, Yongjie,&Qin, Yanyan.(2021).Change in soil organic carbon and its climate drivers over the Tibetan Plateau in CMIP5 earth system models.THEORETICAL AND APPLIED CLIMATOLOGY,145(1-2).
MLA	Li, Suosuo,et al."Change in soil organic carbon and its climate drivers over the Tibetan Plateau in CMIP5 earth system models".THEORETICAL AND APPLIED CLIMATOLOGY 145.1-2(2021).