干旱区生态环境知识资源中心(Arid): Irrigation impacts on grassland hydrological regimes in an arid endorheic river basin

Arid

DOI	10.1016/j.jhydrol.2024.130843
	Irrigation impacts on grassland hydrological regimes in an arid endorheic river basin
	Jin, Xin; Jin, Yanxiang; Du, Kai; Mao, Xufeng; Zheng, Li; Fu, Di; Qin, Yanhong
通讯作者	Jin, X
来源期刊	JOURNAL OF HYDROLOGY
ISSN	0022-1694
EISSN	1879-2707
出版年	2024
卷号	631
英文摘要	Irrigation is an important management measure for maintaining grassland health and improving productivity in arid and semi -arid areas; however, it can also impact hydrological regimes. Owing to terrain and water source constraints, suitable grassland areas for irrigation are limited and widely dispersed, making it difficult to accurately extract the area and spatial distribution of irrigated grasslands. In this study, we used the Google Earth Engine platform and optical remote sensing (Sentinel -2) data to classify irrigated grassland and other land -use types in the Bayin River Basin, a typical arid endorheic river basin. The classification results were then combined with measured irrigation information from the Delingha Irrigation Management Bureau and input into the SWAT-MODFLOW coupled model to simulate differences in plant growth status, groundwater recharge, and evapotranspiration between irrigated and non -irrigated (rain -fed) grasslands. The accuracy of grassland extraction and secondary classification of irrigated grasslands based on optical remote sensing images was high. Irrigation effectively increased the leaf area index of grasslands during later stages of the growing season and significantly increased the groundwater recharge depth, evapotranspiration, and total water yield during the irrigation season, as well as the annual depth of groundwater replenishment. These changes stabilised annual evapotranspiration and substantially reduced the impact of annual precipitation.
英文关键词	Irrigated grassland SWAT-MODFLOW Leaf area index Groundwater recharge depth Evapotranspiration
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:001183703000001
WOS关键词	GROUNDWATER RECHARGE ; HEIHE RIVER ; ACCURACY ; EVAPOTRANSPIRATION ; PATTERNS ; MODEL ; SWAT
WOS类目	Engineering, Civil ; Geosciences, Multidisciplinary ; Water Resources
WOS研究方向	Engineering ; Geology ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/404553
推荐引用方式 GB/T 7714	Jin, Xin,Jin, Yanxiang,Du, Kai,et al. Irrigation impacts on grassland hydrological regimes in an arid endorheic river basin[J],2024,631.
APA	Jin, Xin.,Jin, Yanxiang.,Du, Kai.,Mao, Xufeng.,Zheng, Li.,...&Qin, Yanhong.(2024).Irrigation impacts on grassland hydrological regimes in an arid endorheic river basin.JOURNAL OF HYDROLOGY,631.
MLA	Jin, Xin,et al."Irrigation impacts on grassland hydrological regimes in an arid endorheic river basin".JOURNAL OF HYDROLOGY 631(2024).