摘要
根据野外调查和测立资料分析，认为晋西北地区土地沙漠化过程，至少在有史记载以前的晚更新世末期（即25000－12000aB．P．间）就已断续存在。现代土地沙漠化过程是自然环境特别是干旱多风的气候因素起控制作用，而人类不合理的经济活动则是叠加在自然环境之上，对沙漠化的发生与扩展起着“催化剂”的作用。并讨论了未来全球气候变暖背景下该区土地沙漠化的发展趋势。
Land desertification is one of the most seriotls problem of ecological environment nowdays, which limits the social and economic develol,ment. This article analyzes the land desertification processes in the northwest of Shanxi Province according to the field investigation and the chronlogical data. The study results show that the processes of lancl desertiflcation was occured or developed at this area in the geological stages of the Quaternary before the historical times, especially existed in the last glacial period of the Quaternary(25000 - 12000a. B. P. ) The authors think that the comtemprorary processes of land desertification development at that area are mainly caused and controlled by climatic conditions and fragile ecological envi ron ment and partiyintertered by human unreasonable activities. At the same time. the development trends of land desertification are preliminnrily discussed under the global climate warming. As a result, land desertification in near futurewill be expanded tlnless rehabilitation measures are taken.
出处
《干旱区资源与环境》
CSCD
1997年第3期20-27,共8页
Journal of Arid Land Resources and Environment
基金
山西大学科研经费
关键词
土地沙漠化
气候变化
发展趋势
Northwestern Shanxi,land desertification, climatic change, developmental trends.
