一、华北地区水资源保障能力评价1、水资源和用水现状华北地区水资源主要属于海河、黄河和淮河三大流域。根据1956—1973年水文气象资料进行的水资源评价成果,全国多年平均水资源量为28124亿m3,华北六省区当地多年平均水资源总量为1277.5亿m3,只占全国4.54%。水资源数量与这一 First, the evaluation of water resources in North China 1, the status of water resources and water resources in North China mainly belong to the three major river basins, the Yellow River and the Huaihe River. According to the results of water resources evaluation carried out by hydrological and meteorological data from 1956 to 1973, the average annual water resources in the country was 2.8124 trillion m3. The average annual multi-year average of water resources in the six provinces and autonomous regions in North China was 127.75 billion m3, accounting for 4.54% of the national total. The number of water resources and this