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土地沙化,严重制约着国民经济和社会可持续发展,成为中华民族的一大心腹之患。文章通过对内蒙古阿拉善盟、伊克昭盟、甘肃河西走廊等地的调查研究,认为加速防沙治沙步伐,遏制沙患,强化政府行为,实行强有力的政策支持,已成为当务之急。我国土地沙化形势严峻据对内蒙古阿拉善盟调查,全盟总面积27万 km~2,沙化土地占85%,巴丹吉林、腾格里两大沙漠横贯全境,沙漠以每年20m 的速度向东推进,两大沙漠呈合拢之势,沙化土地每年1000km~2的速度扩展,成为我国主要的沙尘源之一。甘肃民勤县过去是沙漠
Desertification of land severely restricts the sustainable development of the national economy and society and becomes a major problem for the Chinese nation. Through the investigation and study of Alxa League in Inner Mongolia, Yikezhao League and Gansu Hexi Corridor, the article believes that accelerating the pace of desertification and sand control, curbing the suffering of sandstorms, strengthening government behavior and implementing strong policy support has become a top priority. According to a survey conducted by Alxa League in Inner Mongolia, the total area of the alliance is 270,000 km 2 and 85% of the desertified land. The two deserts of Badain Jiling and Tengger run across the whole territory. The desert travels at an annual rate of 20m As the east pushed forward, the two deserts tended to converge and the desertified land expanded at a speed of 1000km ~ 2 a year, becoming one of the major sand sources in our country. Minqin County in Gansu used to be desert