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基于GIS的内蒙古农牧交错带荒漠化近期动态变化及影响因素分析
Desertification Changes and Its Influence Factor in Farming-grazing Transitional Zone in Inner Mongolia During the Past Ten Years Based on GIS
【作者】 王萨仁娜;
【导师】 包玉海;
【作者基本信息】 内蒙古师范大学 , 人文地理学, 2004, 硕士
【摘要】 遥感与GIS技术的应用为荒漠化的研究提供了新的技术手段,使荒漠化发展趋势更直观的呈现出来,易于进行荒漠化评价。本文利用遥感与GIS技术,以内蒙古农牧交错带为例对荒漠化区域进行了动态变化与影响因素分析。 首先,本文初步设计了荒漠化地理信息系统。该信息系统由三个子系统构成,他们分别是:数据库管理系统、荒漠化信息查询系统及模型库管理系统。在建立系统期间,本文利用系统中做好的荒漠化信息作为论文中的基础数据资料,对其进行现状评价及动态分析。分析结果为:内蒙古农牧交错带中部地区及东部的西辽河流域为荒漠化强烈发展地区;近十年,荒漠化的发展以风蚀荒漠化最快,水蚀荒漠化变化次之,盐渍化土地面积变化最少。 与此同时,对荒漠化扩展的影响因素进行了详细的分析,并对荒漠化与土地利用,荒漠化与脆弱生态环境之间的关系作了简单的论述。最后,提出了内蒙古农牧交错带荒漠化防治对策。
【Abstract】 Remote sensing and GIS technology are new methods for desertification research, which take easy to evaluate desertification. Take farming-grazing transitional zone in Inner Mongolia as example, this paper analyzed its dynamic change and influence factor with remote sensing and GIS technology.The first, desertification geography information system is designed. which is formed of three subsidiary systems. The subsidiary systems are data-manage system, information of desertification inquire system and model-manage system. On the basis of delimit boundary line, desertification geography information system is set up. In this paper, using information of the system, analyzed the desertification dynamic change. The conclusion is as follows: desertification is serious in middle part region and Xi-liao-he region; In last ten years, change of wind erosion desertification is the fast, change of water erosion desertification comes second, change of saline desertification is least.At the same time, influence factor are analyzed in detail.In last part, the prevention and cure of desertification countermeasure is put forward.
【Key words】 GIS; desertification; dynamic change; influence factor farming-grazing transitional zone in Inner Mongolia;
- 【网络出版投稿人】 内蒙古师范大学 【网络出版年期】2004年 04期
- 【分类号】X171
- 【被引频次】3
- 【下载频次】325