川西北地区土地沙化成因探讨及对策建议

川西北地区沙化土地的急剧扩张已成为国内外关注的重大环境问题,本文综合整理、分析归纳近年来该地区的研究文献和监测统计资料,对沙化现状及趋势加以概述,并对其成因进行了深入分析。结果表明,自然因素为川西北土地沙化提供了基本条件,而生物因素、人为因素和政策体制因素是其诱导触发因素,起主导作用,在此基础上,提出了防沙治沙工作的对策与建议。

An Analysis of Causes of Land Desertification in Northwestern Sichuan and its Preventive Strategies

Land desertification in northwestern Sichuan has become a major environmental issue,which was deeply concerned all over the world.Based on previous studies and data collected from the study field,this paper described the land desertification state and analysized its causes in northwestern Sichuan.It was concluded that desertification in northwestern Sichuan resulted from four factors.Natural factors provided the fundamental elements for desertification,and biologic factor,intense human activities and unreasonable policies in recent decades were the main factors which induced the desertification in northwestern Sichuan.In the meantime,strategies for preventing land desertification were recommended according to these analysis.