摘要
根据最新的水资源可利用量估算方法的国家规范技术要求,通过中下游河道内生态需水量的计算,对河西内陆河流域3大水系的水资源可利用量进行系统分析和估算,并对3大流域水资源利用现状进行评价。结果表明:河西水资源开发利用程度已远远超出本流域的水资源可利用量,特别是石羊河流域、黑河流域开发利用明显过度,由此引发了一系列社会和生态危机。因此,需要依据流域水资源可利用量,指导全流域水资源合理开发利用、统一配置以及科学管理。
In this paper, the volumes and utilization actuality of available water resources in three main stream systems of the continental drainage basins in the Hexi Corridor are systematically analyzed and estimated by calculating the ecological water demands in the middle and lower reaches based on the state technical specifications for estimating available water resources. The results show that the exploitation and utilization of water resources in the Hexi Corridor are much higher than the volumes of available water resources, especially in the Shiyang River Basin, Heihe River Basin and Shule River Basin, where the volumes of available water resources are 1. 519 × 109 m^3, 2. 140 × 109 m^3 and 1. 005 × 109 m^3, but the degrees of exploitation and utilization of water resources in these three drainage basins in 2000 were as high as 149.1% , 93.8% and 72.1% , respectively, and they were much higher than the international upper limit of 60%. Thus, many social and ecological crises occur in these drainage basins. Therefore, it is very important to guide the rational redistribution, exploitation and utilization of water resources and achieve scientific management of the drainage basins based on the volumes of available water resources.
出处
《干旱区研究》
CSCD
北大核心
2008年第5期615-620,共6页
Arid Zone Research
基金
国家自然科学基金项目(90511003)
关键词
水资源
可利用量
利用现状
河西内陆河流域
water resources
available water resources
evaluation on water resources utilization
continental drainage basin
Hexi Corridor.
作者简介
凡炳文（1964-），男，甘肃静宁人，工程师，主要从事水文水资源调查评价与研究．E-mail：gsswibw@126．com
