云南元谋土地荒漠化特征及原因分析

CHARACTERISTICS OF LAND DESERTIFICATION ADN ANALYSIS OF ITS CAUSES IN YUANMOU REGION, YUNNAN PROVINCE

元谋地区由于青藏高原隆起而产生的气候变化和人类活动强烈干扰而形成的土壤加速侵蚀，使土地荒漠化加速发展，主要表现在土地资源不断被蚕食和土壤退化而导致的土地质量下降，最终使土地荒废．因此，控制人口增长，调整区域农林牧结构布局，增加地表覆盖度，是控制区域土地荒漠化发展的主要措施。

Accelerated soil erosion in Yuanmou region, caused by Climatic change due to the uplift of Qinghai - Xizang Plateau and intensive human activity, aggravated land desertification. With increasing loss of land resources and reduction of land quality resulted from soil degradation, the lands were abandoned consequently. The major measures to restrain the development of land desertification in the region included controlling population growth, readjustment of Structual layout of farming,forestry and amimal husbandary as well as increasing surface coverage.