摘要
本文通过对中国沙漠化形成问题的分析和研究，认为人为因素是我国沙漠化形成的主导因素，其主要表现在土地资源和植物资源的利用问题上，单纯追求经济效益而导致生态效益的低下，从而引起生态环境的恶化，致使土地生产力退化并发生沙漠化。因此，在干旱半干旱地区控制人为过度经济活动是保护地表植被，防治沙漠化的基本途径。
It is known that the artificial factor is a main factor to cause desertification in China. The desertification is reflected in destruction of large area vegetation,and led decreasing cover rate of land surface vegetation and developing soil erosion through the ways of overcultivation,overgrazing,and overcollection of firewood. Therefore,to control the excessive economic activities are basic way to prevent and cure the desertification in arid and semi-aridareas.
出处
《干旱区地理》
CSCD
北大核心
1994年第2期22-29,共8页
Arid Land Geography
关键词
沙漠化
成因
中国
土地
desertification
formation cause
China
