中国西北地区苦咸水资源及其分布特征

Study on the unconventional source-bitter-salty water resources and its distribution characteristics in northwest China

根据调查监测的西北地区苦咸水资源资料和收集研究涉及该区域苦咸水资源的专项调查评价成果等资料。采取分省(区)、分河流、湖泊、地下水水文地质单元(盆地)进行研究。得出中国西北地区现有地表苦咸水河流54条,苦咸水湖泊157个,地下苦咸水水文地质单元(盆地)25个,及其苦咸水资源特征和分布位置图;西北地区现有苦咸水资源总量为1 597.263亿m3,其中,地表苦咸水河流年径流量140.583亿m3,苦咸水湖泊蓄水量1 406.124亿m3,浅层地下苦咸水资源量50.556亿m3;苦咸水分布面积38.301万km2,涉及西北5省(区)、176个县级行政区域,影响用水人口约1 500多万,提出苦咸水资源开发利用建议。对解决中国西北地区淡水资源短缺、苦咸水普遍分布、供水安全及苦咸水资源开发利用等都具有极其重要的意义。

According to the survey and monitoring data of bitter-salty water resources in Northwest China, the special investigation and evaluation results related to the bitter-saltywater resources in the region are collected and studied. Adopting the method of different regions and provinces( districts),river, lake and underground bitter-salty water hydrogeological unit( basin) to study the bitter-salty water. The results show that there are 54 surface bitter-salty water rivers, 157 bitter-salty water lakes, 25 underground bitter-salty water hydrogeological units( basins) and the characteristics and distribution of bitter-salty water resources in Northwest China;The total amount of bitter-salty water resources in Northwest China is159. 726 3 billion m3. Among them, the annual runoff of surface bitter-salty water rivers is 14. 0583 billionm3, the water storage of bitter-salty water lakes is 140. 6124 billion m3, and the shallow underground bitter-salty water resources is 5. 055 6 billion m3. The distribution area of bitter-salty water is 0. 38301 million km2, involving 5 provinces( districts) and 176 county-level administrative regions in Northwest China and affecting more than 15 million water users. Suggestions on the development and utilization of bitter-salty water resources are put forward. It is of great significance to solve the shortage of fresh water resources, the widespread distribution of bitter-salty water, the guarantee of water supply and the development and utilization of bitter-salty water resources in Northwest China.