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Vulnerability analysis based on drought and vegetation dynamics
Niu, J (Niu, Jun)1; Kang, SZ (Kang, Shaozhong)1; Zhang, XT (Zhang, Xiaotao)2; Fu, J (Fu, Jing)1
Source PublicationECOLOGICAL INDICATORS 
2019
Volume105Issue:0Pages:329-336
DOI10.1016/j.ecolind.2017.10.048
Abstract

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.

Subject AreaEnvironmental Sciences
WOS IDWOS:000490574200029
Language英语
Indexed BySCI
KeywordHydrologically Based Dataset Land-surface Fluxes Heihe River-basin Water Vulnerability Soil-moisture Model China Precipitation Groundwater Quantification
WOS Research AreaBiodiversity & Conservation ; Environmental Sciences & Ecology
WOS SubjectBiodiversity Conservation ; Environmental Sciences
Cooperation Status国内
ISSN1470-160X
Department环境变化与地表过程重点实验室
URL查看原文
PublisherELSEVIER
Citation statistics
Cited Times:7[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.itpcas.ac.cn/handle/131C11/9141
Collection图书馆
Corresponding AuthorKang, SZ (Kang, Shaozhong)
Affiliation1.China Agr Univ, Ctr Agr Water Res China, Beijing 100083, Peoples R China;
2.Chinese Acad Sci, Inst Tibetan Plateau Res, Key Lab Tibetan Environm Changes & Land Surface P, Beijing 100101, Peoples R China.
Recommended Citation
GB/T 7714
Niu, J ,Kang, SZ ,Zhang, XT ,et al. Vulnerability analysis based on drought and vegetation dynamics[J]. ECOLOGICAL INDICATORS ,2019,105(0):329-336.
APA Niu, J ,Kang, SZ ,Zhang, XT ,&Fu, J .(2019).Vulnerability analysis based on drought and vegetation dynamics.ECOLOGICAL INDICATORS ,105(0),329-336.
MLA Niu, J ,et al."Vulnerability analysis based on drought and vegetation dynamics".ECOLOGICAL INDICATORS  105.0(2019):329-336.
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