【摘要】 <正> 一、沙化土地区自然概况 宁夏回族自治区地处腾格里沙漠东南和毛乌素沙漠西南的边缘,沙化土地面积约16763km~2,占全区总面积的32.3％和全区水土流失面积的42.8％,其中:弱度沙化面积10576.9km~2,占沙化土地面积的63.1％;中度沙化面积3748.3km~2,占沙化土地面积的22.4%;强度沙化面积2437.6km~2,占沙化土地面积的14.5％。约有3/4的沙化土地面积更多还原

【Abstract】 The area of deserted land in Ningxia Autonomous Region amounts to about 16763 km2, covering 42.8% of the total area subject to soil loss and about 75% of the deserted land distributes in the middle part of the region. Since the fundation of People’s Republic of China, harnessment of desert in large scales had been carrid out and great pregress had been made, such as: protection forests with an area of 1.64 million mu had been planted and shelter grass in grids 0.1 mil lion mu was installed, bringing about a quarter of the deserted land under control, migration of the desert to the south had been basically halted, 4.3 million mu of farmland and grassland had been preserved. In the area, railway and highway can be normally put into operation. A great deal of experiences in organization and techniques in harnessing the desert were obtained.更多还原