气候变化领域集成服务门户(CCPortal): Vulnerability analysis based on drought and vegetation dynamics

CCPortal

DOI	10.1016/j.ecolind.2017.10.048
	Vulnerability analysis based on drought and vegetation dynamics
	Niu, Jun; Kang, Shaozhong; Zhang, Xiaotao; Fu, Jing
通讯作者	Kang, SZ (通讯作者)
发表日期	2019
ISSN	1470-160X
EISSN	1872-7034
起始页码	329
结束页码	336
卷号	105
英文摘要	Evaluating the relationship between the vegetation conditions on both non-irrigated (rain-fed) and irrigated lands with the soil water availability at a river basin scale is particularly important, as they address the breadth of vulnerability sources and concentrate on a dominant water factor which reflects the physical processes. A four-step framework is proposed to study the vegetation responses to natural soil water content. Three severe drought events for an inland river basin, the Heihe River basin in Northwest China, are identified for the period of 2001-2010. The severe events occurred within the period from June to September and often lasted about 1-2 months. The time-lags of irrigated and non-irrigated vegetation cover to soil water evolutions are found respectively, ranging from approximately -80 to + 80 days, which are associated with regional eco-environmental vulnerability. The negative lags, indicating water deficit for crops, mostly occurred in the eastern part of midstream of Heihe River with farmland. The positive lags mainly appeared at the western part of headwater regions of Heihe River. The efforts to assess the vulnerability of regional vegetation to drought in the context of climate change offer guidance to natural environment and agricultural managements in allocating available water particularly under drought situations.
关键词	HYDROLOGICALLY BASED DATASET LAND-SURFACE FLUXES HEIHE RIVER-BASIN WATER VULNERABILITY SOIL-MOISTURE MODEL CHINA PRECIPITATION GROUNDWATER QUANTIFICATION
英文关键词	Vulnerability; Drought; Enhanced vegetation index (EVI); VIC model; Northwest China
语种	英语
WOS研究方向	Biodiversity & Conservation ; Environmental Sciences & Ecology
WOS类目	Biodiversity Conservation ; Environmental Sciences
WOS记录号	WOS:000490574200029
来源期刊	ECOLOGICAL INDICATORS
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/259410
推荐引用方式 GB/T 7714	Niu, Jun,Kang, Shaozhong,Zhang, Xiaotao,et al. Vulnerability analysis based on drought and vegetation dynamics[J]. 中国科学院青藏高原研究所,2019,105.
APA	Niu, Jun,Kang, Shaozhong,Zhang, Xiaotao,&Fu, Jing.(2019).Vulnerability analysis based on drought and vegetation dynamics.ECOLOGICAL INDICATORS,105.
MLA	Niu, Jun,et al."Vulnerability analysis based on drought and vegetation dynamics".ECOLOGICAL INDICATORS 105(2019).