科尔沁沙地风沙环境形成与演变研究进展

随着我国西部大开发中对生态环境的重视和近年沙尘暴的频繁发生 ,科尔沁沙地在内的我国北方广大的沙尘源区再度成为人们关注的焦点。文章在充分分析前人研究的基础上 ,结合该区考古发现与历史文献记载以及与交错带其他地段的对比分析 ,就科尔沁沙地的形成和风沙环境的发展提出了概括性的意见。认为 :沙地主要形成于晚更新世末全新世初期 ,在全新世曾经经历了四次的沙地稳定期和活化期。沙地目前正处于其最新的活化期 ,主要是由人类不合理的开发活动引起的

An Advance on Studies of Formation and Environmental Evolution of Horqin Desert

With the ecological environment being a big issue during the period of the development on West China and the sandstorm frequently occurring in recent years,the environment issue now becomes a pricipal focus again in the area of sandstorm source including Horqin Desert in North China.Based on the analysis of the research of the past years,archeological results,historical records and the comparative analysis on the interlocking area between cultivated land and grazing land the results were drawn that,the desert was formed at the end of Upper pleistocene epoch and the beginning of Holocene epoch,and has experienced the placid and active periods four times.now Horqin Desert is in the intensely active period,which results from the unreasonable activities of human beings.