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海河流域水资源短缺已经成为国民经济发展的制约因素。水资源短缺的主要原因是:第一,自然地理条件所致。海河流域地处半干旱气候区,降雨量少而且时空分布不均匀,蒸发量也较大,因此产生了贫乏的水资源和丰富的土地资源、光热资源、矿产资源的不平衡。第二,国民经济发展迅速,用水量迅猛增长。建国以来流域的农业产量增加约6倍,工业产值增长数十倍,使得工农业用水迅速增长,这是流域水资源短缺的主要
The shortage of water resources in the Haihe River Basin has become a constraint on the development of the national economy. The main reasons for the shortage of water resources are as follows: First, due to natural and geographical conditions. The Haihe River Basin is located in a semi-arid climatic zone with less rainfall and uneven temporal and spatial distribution and larger evaporation, resulting in poor water resources and abundant land, light, heat and mineral resources. Second, the rapid development of the national economy and the rapid growth of water use. Since the founding of the People’s Republic of China, the output of agriculture in the basin has increased by about six times and that of industrial output has increased by several times. This has led to the rapid growth of water for industry and agriculture, which is the main water shortage in the basin