干旱区生态环境知识资源中心(Arid): Sensitivity of river ecological baseflow to climate change in arid areas

Arid

DOI	10.3389/fenvs.2022.1080810
	Sensitivity of river ecological baseflow to climate change in arid areas
	Hu, Keke; He, Jiancun; Danierhan, Sulitan; Tuerxun, Yiliyasi
通讯作者	Danierhan, S
来源期刊	FRONTIERS IN ENVIRONMENTAL SCIENCE
EISSN	2296-665X
出版年	2023
卷号	10
英文摘要	River ecological baseflow is key to river ecosystem health and stability and has become particularly important with global climate change aggravation. By considering the Niya River Basin in Xinjiang, based on meteorological data from 1958 to 2021 and hydrological data from 1978 to 2018, the Tennant method was determined to be the best basin ecological baseflow calculation method, the M-K test was used to analyze the abrupt ecological baseflow and climate change characteristics, and the ecological baseflow regression response and sensitivity coefficient models concerning climate change were established. The results showed that 75% of the ecological baseflow in the Niya River Basin ranged from 15 to 31 m(3)center dot s(-1) in 1978-2018, the average annual temperature increased by 1.6? at a 0.22?center dot(10a)(-1) rate, and the annual precipitation increased by 6.3 mm at a 0.98 mm center dot(10a)(-1) rate. The prediction accuracy of the regression model was good, R (2) exceeded 0.7, the ecological baseflow response to climate change lagged, and precipitation greatly impacted ecological baseflow. The basin sensitivity coefficient showed a decreasing trend from upstream to downstream, with the annual maximum value in 2010, the minimum value in 1984, the monthly maximum value in April and the monthly minimum value in November. Based on the climate change trend and the social water use of the basin, the ecological baseflow protection targets and measures were proposed according to the season and the hydrological period for actual water resource management and scheduling of the river in this and similar regions.
英文关键词	arid area Niya River Basin ecological baseflow climate change sensitivity 2
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000916090300001
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/2XILL650/396508
推荐引用方式 GB/T 7714	Hu, Keke,He, Jiancun,Danierhan, Sulitan,et al. Sensitivity of river ecological baseflow to climate change in arid areas[J],2023,10.
APA	Hu, Keke,He, Jiancun,Danierhan, Sulitan,&Tuerxun, Yiliyasi.(2023).Sensitivity of river ecological baseflow to climate change in arid areas.FRONTIERS IN ENVIRONMENTAL SCIENCE,10.
MLA	Hu, Keke,et al."Sensitivity of river ecological baseflow to climate change in arid areas".FRONTIERS IN ENVIRONMENTAL SCIENCE 10(2023).