摘要
本文以新疆塔克拉玛干沙漠和内蒙科尔沁沙地为例,着重探讨了第四纪环境、气候变化、沙物质来源和运送机制、沙漠水文特征和利用方式、植被特征及其演变等在沙漠化形成机制中的作用,指出沙漠化是一种综合的白然地理过程,是自然环境和人文环境共同施加作用的结果,它导致了干旱和半干旱地区生态平衡的严重紊乱和瓦解,导致灾难性的生态恶果。对沙漠化环境的改善和逆转,提出了具体的建议。
Taking the Taklamkan Desert in Xinjiang and Horqin Sandy Land in Inner Mongolia as examples,this paper mainly discussed the effects of environment in the Quaternary Period,climate change,source and transportation mechanism of sand,hydrologic characteristic and utilization method as well as vegetation features and its evolution on the mechanism of desertification formation, indicated that the desertification is a kind of process of comprehensively physical geography,a result from the influences of both natural and human environments,a cause for the serious disorder and collapse of the ecological balance.
出处
《干旱区研究》
CSCD
北大核心
1993年第1期1-14,共14页
Arid Zone Research
关键词
沙漠化
机制
防治
desertification
mechanism
