气候变化领域集成服务门户(CCPortal): Dynamic responses of soil organic carbon to climate change in the Three-River Headwater region of the Tibetan Plateau

CCPortal

DOI	10.3354/cr01141
	Dynamic responses of soil organic carbon to climate change in the Three-River Headwater region of the Tibetan Plateau
	Zhao, Dongsheng; Wu, Shaohong; Yin, Yunhe
通讯作者	Zhao, DS (通讯作者)
发表日期	2013
ISSN	0936-577X
EISSN	1616-1572
起始页码	21
结束页码	32
卷号	56 期号:1
英文摘要	Climate change has a high chance of stimulating soil organic carbon (SOC) decomposition, thereby accelerating carbon release in soil. Alpine ecosystems sequester large amounts of SOC. However, little is known about long-term trends and future changes of SOC in alpine ecosystems. In this study, the Lund-Potsdam-Jena dynamic global vegetation model for China (LPJ-CN) was applied to simulate temporal and spatial responses of soil organic carbon density (SOCD) to climate change in Three-River Headwater (TRH) of the Tibetan Plateau from 1981 to 2100. LPJ-CN is a modified dynamical vegetation model based on Chinese terrestrial ecosystem features. Results suggest that average SOCD for the TRH in the period from 1981 to 2010 was 3.97 kg C m(-2). During this period, SOCD increased at an average rate of 0.0001 kg C m(-2) yr(-1); spatially there was a gradient of decreasing SOCD from east to west across the TRH. Under climate change scenarios, SOCD over TRH as a whole is projected to decrease until reaching it lowest level circa 2070, and to rise thereafter. However there may be some regional variation, with SOCD increasing in west TRH and decreasing in east TRH. This decreasing trend may be enhanced further in a warming climate. However, the pattern of higher SOCD in the east and lower SOCD in the west may have less variation in the future. In general, climate warming in the future may lead to a corresponding decrease in SOCD in TRH, which may accelerate carbon release from alpine soils.
关键词	TEMPERATURE-DEPENDENCE CHINA VEGETATION MODEL 1980S GRASSLANDS BALANCE STOCK
英文关键词	Three-River Headwater; Soil organic carbon; Climate change; Dynamic responses; Tibetan Plateau
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
WOS类目	Environmental Sciences ; Meteorology & Atmospheric Sciences
WOS记录号	WOS:000315463700003
来源期刊	CLIMATE RESEARCH
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/258100
推荐引用方式 GB/T 7714	Zhao, Dongsheng,Wu, Shaohong,Yin, Yunhe. Dynamic responses of soil organic carbon to climate change in the Three-River Headwater region of the Tibetan Plateau[J]. 中国科学院青藏高原研究所,2013,56(1).
APA	Zhao, Dongsheng,Wu, Shaohong,&Yin, Yunhe.(2013).Dynamic responses of soil organic carbon to climate change in the Three-River Headwater region of the Tibetan Plateau.CLIMATE RESEARCH,56(1).
MLA	Zhao, Dongsheng,et al."Dynamic responses of soil organic carbon to climate change in the Three-River Headwater region of the Tibetan Plateau".CLIMATE RESEARCH 56.1(2013).