干旱区生态环境知识资源中心(Arid): Hydrological Characteristics of the Heihe River Basin in the Arid Inland Area of Northwest China

Arid

	Hydrological Characteristics of the Heihe River Basin in the Arid Inland Area of Northwest China
	Feng, Qi; Liu, Wei; Xi, Haiyang; Liu, Dongli
通讯作者	Feng, Q
来源期刊	SCIENCES IN COLD AND ARID REGIONS
ISSN	1674-3822
出版年	2008
页码	80-91
英文摘要	The hydrological characteristics of the Heihe River Basin in the arid inland area of northwest China were investigated. The spatial distribution of annual precipitation in the basin indicates that it decreases from east to west and from south to north, and increases with elevation by a gradient of 24.4 mm per hundred meters below 2,810 m a.s.l., but decreases with elevation by that of 37.0 mm per hundred meters above 2,810 m a.s.l. For the last 50 years, the mountain runoff of the basin has a tendency of increase. Except in the mountain area, the aridity is very high in the basin, and the aridity index ranges from 1.6 to 7.0 at the piedmont, to 9.0 similar to 20.0 in the midstream area and up to 40.0 in the downstream Ejin region. It is estimated for the last 50 years that a 1 degrees C increment of annual temperature causes a 21.5 mm increase of evaporation in the mountain area, and the equivalent reduction of mountain runoff is 0.215x109 m(3)/yr at the Yingluoxia Hydrometric Station. The estimation shows also that a 1 degrees C increment of annual temperature causes 1,842 mm increase of farmland evapotranspiration in the midstream area, an equivalent of 0.298x10(9) m(3)/yr more water consumption. The anthropogenic influence on the hydrological processes and water resources is then discussed.
英文关键词	hydrological processes Heihe River northwest China
类型	Article
语种	英语
收录类别	ESCI
WOS记录号	WOS:000422246700008
WOS类目	Geography, Physical
WOS研究方向	Physical Geography
来源机构	中国科学院西北生态环境资源研究院 ; 清华大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/329116
作者单位	[Feng, Qi; Xi, Haiyang; Liu, Dongli] Chinese Acad Sci, Cold & Arid Regions Environm & Engn Res Inst, 320 West Donggang Rd, Lanzhou 730000, Gansu, Peoples R China; [Liu, Wei] Tsinghua Univ, State key Lab Hydrosci & Engn, Beijing 100084, Peoples R China
推荐引用方式 GB/T 7714	Feng, Qi,Liu, Wei,Xi, Haiyang,et al. Hydrological Characteristics of the Heihe River Basin in the Arid Inland Area of Northwest China[J]. 中国科学院西北生态环境资源研究院, 清华大学,2008:80-91.
APA	Feng, Qi,Liu, Wei,Xi, Haiyang,&Liu, Dongli.(2008).Hydrological Characteristics of the Heihe River Basin in the Arid Inland Area of Northwest China.SCIENCES IN COLD AND ARID REGIONS,80-91.
MLA	Feng, Qi,et al."Hydrological Characteristics of the Heihe River Basin in the Arid Inland Area of Northwest China".SCIENCES IN COLD AND ARID REGIONS (2008):80-91.