综合治理 除害兴利 建设富庶的新沙区

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综合治理除害兴利建设富庶的新沙区

- 综合治理除害兴利建设富庶的新沙区
- Bulletin of Soiland Water Conservation Vol. 2, Issue 6, Pages: 17-20(1983)
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- Published：1983
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[J]. Bulletin of Soiland Water Conservation, 1983, 2(6): 17-20.
DOI：

[J]. Bulletin of Soiland Water Conservation, 1983, 2(6): 17-20. DOI：

摘要

一榆林地区位于西北黄土高原北部，毛乌素沙漠南缘。大体以长城为界，南部是丘陵沟壑区，北部是风沙区。沙漠分布在7个县，面积1.6万平方公里，占全区总面积的37%；耕地200多万亩，农业人口47万，都占全区的20%左右。这里风大沙多，干旱少雨，常年降雨量300—450毫米，多集中在7—9三个月；无霜期短，一般只有120—150天。风沙、旱、涝、霜冻、冰雹等自然灾害频繁；特别是风沙侵害，曾经给农业生产和

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