Ecological effects and potential risks of the water diversion project in the Heihe River Basin
文献类型：期刊论文
| 作者 | Zhang, Mengmeng; Wang, Shuai; Fu, Bojie ; Gao, Guangyao; Shen, Qin
|
| 刊名 | SCIENCE OF THE TOTAL ENVIRONMENT
 |
| 出版日期 | 2018-04-01 |
| 卷号 | 619页码:794-803 |
| 关键词 | Ecological effects Heihe River Basin Water diversion project |
| ISSN号 | 0048-9697 |
| 文献子类 | Article |
| 英文摘要 | To curb the severe ecological deterioration in the lower Heihe River Basin (HRB) in northwest China, a water diversion project was initiated in 2000. A comprehensive analysis of the ecological effects and potential risks associated-with the project is needed. We assessed the hydrological and ecological achievements, and also analyzed the potential problems after the project was completed. We found that since the project began the hydrological regime has changed, with more than 57.82% of the upstream water being discharged to the lower reaches on average. As a result, the groundwater level in the lower reaches has risen; the terminal lake has gradually expanded to a maximum area in excess of 50 km(2) since 2010, and there has been a significant recovery of vegetation in the riparian zone and the Ejin core oases, which represents the initial rehabilitation of the degraded downstream environment. Additionally, the economy of Ejin has developed spectacularly, with an annual growth rate of 28.06%. However, in the middle reaches, the average groundwater level has continuously declined by a total of 5.8 m and significant degradation of the vegetation has occurred along the river course. The discrepancy in the water allocation between the middle and lower reaches has intensified. This highlights the inability of the current water diversion scheme to realize further ecological restoration and achieve sustainable development throughout the whole basin. In future water management programs, we recommend that water allocation is coordinated by considering the basin as an integrated entity and to scientifically determine the size of the midstream farmland and downstream oasis; restrict non-ecological water use in the lower reaches, and jointly dispatch the surface water and groundwater. (C) 2017 Elsevier B.V. All rights reserved. |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/40525]  |
| 专题 | 生态环境研究中心_城市与区域生态国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Zhang, Mengmeng,Wang, Shuai,Fu, Bojie,et al. Ecological effects and potential risks of the water diversion project in the Heihe River Basin[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2018,619:794-803. |
| APA | Zhang, Mengmeng,Wang, Shuai,Fu, Bojie,Gao, Guangyao,&Shen, Qin.(2018).Ecological effects and potential risks of the water diversion project in the Heihe River Basin.SCIENCE OF THE TOTAL ENVIRONMENT,619,794-803. |
| MLA | Zhang, Mengmeng,et al."Ecological effects and potential risks of the water diversion project in the Heihe River Basin".SCIENCE OF THE TOTAL ENVIRONMENT 619(2018):794-803. |
入库方式： OAI收割
来源：生态环境研究中心
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。