干旱区生态环境知识资源中心(Arid): Assessing Vegetation Dynamics and Landscape Ecological Risk on the Mainstream of Tarim River, China

Arid

DOI	10.3390/w12082156
	Assessing Vegetation Dynamics and Landscape Ecological Risk on the Mainstream of Tarim River, China
	Zhang, Hui; Xue, Lianqing; Wei, Guanghui; Dong, Zengchuan; Meng, Xianyong
通讯作者	Xue, LQ
来源期刊	WATER
EISSN	2073-4441
出版年	2020
卷号	12 期号:8
英文摘要	The Tarim River (TR), the longest inland river at an arid area in China, plays a critical role in the sustainable development of the regional ecological environment. This study presents the spatial-temporal variations in the vegetation coverage at regional and pixel scales and its driving factors on the TR mainstream. The latest dataset of normalized difference vegetation index (NDVI) and a vegetation coverage index (fc) over the period from 2000-2015 were analyzed with the unary linear regression and the partial correlation. On the basis of land use data, we further built the landscape ecological risk index and assessed the ecological risk level of the mainstream. Our results suggest that the vegetation coverage index demonstrated fluctuations but denoted a generally upward trend in the TR mainstream, the vegetation improvement areas are far greater than the degraded areas during the study period. Apparently, the overflow days in the TR mainstream and the cumulative amount of water transport are the two main factors that dominate the vegetation coverage. The ecological risk level varies throughout the TR with a high-to-low spatial distribution from upstream to downstream, and the overall landscape ecological risk of the whole basin exhibits an upward tendency. Above all, our study provides a framework with the remote sensing data to assess vegetation coverage and landscape ecological risk which can help design and implement reliable strategies for the ecological management and vegetation restoration in the Tarim River Basin.
英文关键词	vegetation coverage driving factor overflow days eco-water transport landscape ecological risk Tarim River
类型	Article
语种	英语
开放获取类型	DOAJ Gold
收录类别	SCI-E
WOS记录号	WOS:000564686400001
WOS关键词	LAND-COVER CHANGE ; LOWER REACHES ; GROUNDWATER DYNAMICS ; RIPARIAN VEGETATION ; WATER CONVEYANCE ; ARID REGION ; BASIN ; RESTORATION ; MANAGEMENT ; XINJIANG
WOS类目	Water Resources
WOS研究方向	Water Resources
来源机构	中国科学院地理科学与资源研究所 ; 河海大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/325938
作者单位	[Zhang, Hui; Xue, Lianqing; Dong, Zengchuan] Hohai Univ, Coll Hydrol & Water Resources, Nanjing 210098, Peoples R China; [Zhang, Hui] Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Water Cycle & Related Land Surface Proc, Beijing 100101, Peoples R China; [Zhang, Hui] Univ Chinese Acad Sci, Beijing 100049, Peoples R China; [Xue, Lianqing] Hohai Univ Wentian Coll, Maanshan 243000, Peoples R China; [Wei, Guanghui] Xinjiang Tarim River Basin Author, Korla 841000, Peoples R China; [Meng, Xianyong] China Agr Univ CAU, Coll Resources & Environm Sci, Beijing 100094, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Hui,Xue, Lianqing,Wei, Guanghui,et al. Assessing Vegetation Dynamics and Landscape Ecological Risk on the Mainstream of Tarim River, China[J]. 中国科学院地理科学与资源研究所, 河海大学,2020,12(8).
APA	Zhang, Hui,Xue, Lianqing,Wei, Guanghui,Dong, Zengchuan,&Meng, Xianyong.(2020).Assessing Vegetation Dynamics and Landscape Ecological Risk on the Mainstream of Tarim River, China.WATER,12(8).
MLA	Zhang, Hui,et al."Assessing Vegetation Dynamics and Landscape Ecological Risk on the Mainstream of Tarim River, China".WATER 12.8(2020).