干旱区生态环境知识资源中心(Arid): Interannual variation in riparian vegetation cover and its relationship with river flow under a high level of human intervention: an example from the Yongding River Basin

Arid

DOI	10.1007/s10661-021-09187-8
	Interannual variation in riparian vegetation cover and its relationship with river flow under a high level of human intervention: an example from the Yongding River Basin
	Ren, Liangsuo; Zhang, Shurong; Guo, Xulin; Cheng, Lirong; Guo, Yujing; Ding, Aizhong
通讯作者	Ding, AZ (corresponding author)，Beijing Normal Univ, Coll Water Sci, Beijing 100875, Peoples R China.
来源期刊	ENVIRONMENTAL MONITORING AND ASSESSMENT
ISSN	0167-6369
EISSN	1573-2959
出版年	2021
卷号	193 期号:7
英文摘要	Riparian vegetation cover is significantly affected by a river's hydrological conditions. Especially in arid and semiarid areas, low flow will degrade riparian vegetation, and recent, intensive human activities in the Yongding River Basin have caused a sharp decrease in river flow. We analyzed interannual change in riparian vegetation, river flow effects, and land use on vegetation coverage using the 40 years (1977-2016) of remote sensing images and river flow, combined with 38 years (1980-2018) of land use data. The normalized difference vegetation index (NDVI) was used to determine vegetation cover in five different categories: extremely low, low, medium, high, and extremely high based on the pixel dichotomy model. The weighted average was calculated to obtain vegetation cover trends. We show that riparian vegetation cover from four rivers increased. Compared with 1977, in 2016, combined high and extremely high vegetation covers at the Dongyang, Yang, Sanggan, and Yongding Rivers increased by 20.3%, 26.7%, 50.0%, and 39.2%, respectively. High (R = -0.976, P < 0.01) and extremely high (R = -0.762, P < 0.05) vegetation covers are negatively correlated with flow in the Yongding River. The high vegetation cover of the Sanggan River riparian zone is negatively correlated with river flow (R = -0.683, P < 0.05). In the Dongyang and Sanggan Rivers, land use analysis in the riparian zone showed that change in cultivated land, grassland, and forest were significantly correlated with high and extremely high vegetation cover. The abundant cultivated land and restoration activities are likely responsible for the increase of riparian vegetation cover as river flows decline.
英文关键词	Riparian zone Remote sensing NDVI Pixel dichotomy model Land use
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000757352900019
WOS关键词	FLUVIAL LANDFORMS ; WATER-RESOURCES ; CLIMATE-CHANGE ; TIME-SERIES ; DYNAMICS ; PATTERNS ; RECRUITMENT ; DISTURBANCE ; MANAGEMENT ; RESPONSES
WOS类目	Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/375952
作者单位	[Ren, Liangsuo; Zhang, Shurong; Cheng, Lirong; Guo, Yujing; Ding, Aizhong] Beijing Normal Univ, Coll Water Sci, Beijing 100875, Peoples R China; [Guo, Xulin] Univ Saskatchewan, Dept Geog & Planning, Saskatoon, SK S7N 5C8, Canada
推荐引用方式 GB/T 7714	Ren, Liangsuo,Zhang, Shurong,Guo, Xulin,et al. Interannual variation in riparian vegetation cover and its relationship with river flow under a high level of human intervention: an example from the Yongding River Basin[J],2021,193(7).
APA	Ren, Liangsuo,Zhang, Shurong,Guo, Xulin,Cheng, Lirong,Guo, Yujing,&Ding, Aizhong.(2021).Interannual variation in riparian vegetation cover and its relationship with river flow under a high level of human intervention: an example from the Yongding River Basin.ENVIRONMENTAL MONITORING AND ASSESSMENT,193(7).
MLA	Ren, Liangsuo,et al."Interannual variation in riparian vegetation cover and its relationship with river flow under a high level of human intervention: an example from the Yongding River Basin".ENVIRONMENTAL MONITORING AND ASSESSMENT 193.7(2021).