我国北方干旱半干旱地区水资源演变规律及其供需状况评价

利用 1 994～ 2 0 0 0年的水文资料和第一次全国水资源评价成果 ,运用统计学方法 ,分析了我国北方干旱半干旱地区水资源分布情况及其近 5 0年来的演变规律 ,定量说明了干旱半干旱地区大气降水与水资源分布的一致性关系。评价了干旱半干旱地区水资源开发利用现状和供需平衡状况 ,为该地区优化配置水资源、调整和优化农业结构以及合理开采利用地下水资源提供参考依据

Law of Water Resource Evolvement and Estimating of Water Supply and Requirement in Arid and Semi-arid Region of North China

Using the water resource data from 1994 to 2000 year and the result of the first national water resource evaluation to analyze the water resource distribution and the rule of water resource evolvement in recent 50 years of arid and semi arid regions in north China by statistical method. The identical relation of precipitation and water resource distribution is quantificationally explained of arid and semi arid regions,evaluating the exploitation and utilization present situation of water resource and the balance of water supply and requirement provide reference for optimal configuring water resource,regulating and optimizing agriculture structure and rational exploiting and utilizing the groundwater resource.