气候变化领域集成服务门户(CCPortal): Distribution and evolution of water chemistry in Heihe River basin

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DOI	10.1007/s00254-003-0950-7
	Distribution and evolution of water chemistry in Heihe River basin
	Feng, Q; Liu, W; Su, YH; Zhang, YW; Si, JH
发表日期	2004
ISSN	0943-0105
起始页码	947
结束页码	956
卷号	45 期号:7
英文摘要	Surface- vs. ground-water chemistry in the Heihe River basin, assessed through field sampling of precipitation, surface water and groundwater, allowed geographical zones and chemical types to be differentiated. The geographical zones included: alpine ice-snow (>3,900 m), alpine meadow (3,400-3,900 m), mountain forest and shrub (2,600-3,400 m), mountain grassland (1,9002,600 m) and desert grassland (1,500-1,900 m). Groundwater chemical types included: (1) mountain fissure and piedmont gravel, bicarbonate, (2) piedmont diluvial, alluvial and lacustrine plain, sulphate, and (3) desert salt-accumulating depression, chloride. Since the 1960s, large volumes of river water diverted for irrigation have been found to re-emerge as spring water at the edge of alluvial fans and then reintegrate the Heihe River. After a number of reuses and re-emergences in the middle reaches, the river's level of mineralization has doubled. Hydrological changes have resulted in the marked degradation of aquatic habitats, and caused substantial, and expanding, land salinization and desertification. Solving these largely anthropogenic problems requires concerted, massive and long-term efforts.
英文关键词	Heihe River Basin; water salinity; ecosystem degradation; environmentally sustainable development; China
WOS研究方向	Environmental Sciences & Ecology ; Geology ; Water Resources
WOS类目	Environmental Sciences ; Geosciences, Multidisciplinary ; Water Resources
WOS关键词	USE EFFICIENCY ; SOIL-WATER ; RESOURCES
WOS记录号	WOS:000221734600006
来源期刊	ENVIRONMENTAL GEOLOGY
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/239405
作者单位	Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, Lanzhou 730000, Peoples R China
推荐引用方式 GB/T 7714	Feng, Q,Liu, W,Su, YH,et al. Distribution and evolution of water chemistry in Heihe River basin[J]. 中国科学院西北生态环境资源研究院,2004,45(7).
APA	Feng, Q,Liu, W,Su, YH,Zhang, YW,&Si, JH.(2004).Distribution and evolution of water chemistry in Heihe River basin.ENVIRONMENTAL GEOLOGY,45(7).
MLA	Feng, Q,et al."Distribution and evolution of water chemistry in Heihe River basin".ENVIRONMENTAL GEOLOGY 45.7(2004).