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	The impact of the development of water resources on environment in arid inland river basins of Hexi region, Northwestern China
	Ji, Xibin; Kang, Ersi; Chen, Rensheng; Zhao, Wenzhi; Zhang, Zhihui; Jin, Bowen
刊名	ENVIRONMENTAL GEOLOGY
	2006-08-01
卷号	50期号:6页码:793-801
关键词	water resources development environment human activity arid inland river basin China
ISSN号	0943-0105
DOI	10.1007/s00254-006-0251-z
通讯作者	Ji, Xibin(xuanzhij@ns.lzb.ac.cn)
英文摘要	Water resources use is a key parameter in the hydrological cycle, especially in arid inland of Northwest China, groundwater movement and circulation processes are closely related to the surface water, while recoverable and renewable groundwater mainly comes from the conversion of surface river water, and there is extensive transfer among rainfall, surface water and groundwater. Human activity, in particular, large-scale water resources exploitation and development associated with dramatic population growth in the last decades, has led to tremendous changes in the water regime. There are misuse and wastage of surface water with traditional multi-channel irrigation for most rivers, which in turn leads to over-exploitation of groundwater to augment supplies. This situation has been exacerbated by rapid population growth and socio-economic development, with decreased irrigational systems return to groundwater due to the irrigation system in the middle reaches of rivers in the Hexi region becoming better. The investigations of this study revealed that over the last decades, man-made oases have developed rapidly in various inland river basins. With the increasing human demand for water, the contradiction between water demand and water supply is becoming increasingly acute and the amount of groundwater usage significantly increased. Notwithstanding the annual surface water from mountains is relatively stable in the Hexi region, the recharges of groundwater have been reduced by 11.1%, with a maximum reduction of 50% in the Shiyang River basin. Groundwater abstraction increased by approximately six times, particularly in the Shiyang River basin, groundwater abstraction exceeds recharge by 4.1x10(8) m(3) year(-1) in recent decades. Consequently, the groundwater level has declined widely by 3-16 m, with a maximum decline of 45 m in several groundwater observation wells in the Minqin basin on the lower reaches of the Shiyang River basin. These cause serious human activity-induced environmental problems, such as water-quality deterioration, vegetation degradation, soil salinization and land desert desertification, etc. It is suggested that modernized irrigation technology and new regulation to cover water resources management and allocation with the river basins are urgently needed to achieve a sustainable development. The aim of this study is to analyze the impact of the development of water resources on the environment in arid inland river basins in Northwestern China, which were analyzed by comparing the three main river basins (i.e., the Shuilei, the Heihe and the Shiyang River basins) with different water resources development cases.
收录类别	SCI
WOS研究方向	Environmental Sciences & Ecology ; Geology ; Water Resources
WOS类目	Environmental Sciences ; Geosciences, Multidisciplinary ; Water Resources
语种	英语
出版者	SPRINGER
WOS记录号	WOS:000239296700003
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2555794
专题	寒区旱区环境与工程研究所
通讯作者	Ji, Xibin
作者单位	CAS, Lab Watershed Hydrol & Ecol, Cold & Arid Regions Environm & Engn Res Inst, Lanzhou 730000, Peoples R China
推荐引用方式 GB/T 7714	Ji, Xibin,Kang, Ersi,Chen, Rensheng,et al. The impact of the development of water resources on environment in arid inland river basins of Hexi region, Northwestern China[J]. ENVIRONMENTAL GEOLOGY,2006,50(6):793-801.
APA	Ji, Xibin,Kang, Ersi,Chen, Rensheng,Zhao, Wenzhi,Zhang, Zhihui,&Jin, Bowen.(2006).The impact of the development of water resources on environment in arid inland river basins of Hexi region, Northwestern China.ENVIRONMENTAL GEOLOGY,50(6),793-801.
MLA	Ji, Xibin,et al."The impact of the development of water resources on environment in arid inland river basins of Hexi region, Northwestern China".ENVIRONMENTAL GEOLOGY 50.6(2006):793-801.

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