我国是一个干旱缺水严重的国家,宁夏则是全国水资源最少的省区,人均占有量仅228立方米,是全国人均水平的1/12,每亩耕地占有量也只有66立方米,是黄河流域平均值的1/5和全国平均值的1/27。特别是面积占全区58.8%、人口占44.2%的南部山区十年九旱,年降雨 China is a country suffering from severe drought and water shortage. Ningxia is the province with the least water resources in the country. Its per capita possession is only 228 cubic meters, which is 1/12 of the national per capita level. Only 66 cubic meters of cultivated land per mu is The average of the Yellow River Basin 1/5 and the national average of 1/27. In particular, the southern mountainous areas, which occupy 58.8% of the entire area and account for 44.2% of the population, suffer from nine drought periods and annual rainfall