ZHANG Chuan-hong,HE Zheng-wei,QIU Wen-xia,et al.Analysis Change of Landuse and Soil Erosion in Chengguan District of Lhasa[J].Research of Soil and Water Conservation,2010,17(03):73-78.
拉萨市城关区土地利用与土壤侵蚀变化分析
- Title:
- Analysis Change of Landuse and Soil Erosion in Chengguan District of Lhasa
- Keywords:
- landuse; soil erosion; overlay analysis; statistics analysis
- 分类号:
- F301.24
- 摘要:
- 针对土地利用与土壤侵蚀变化关系研究的热点问题，以多源遥感影像数据为数据源，在分析拉萨市城关区土地利用变化和土壤侵蚀动态变化基础上，探讨了MSS/TM/ETM+/CBERS等遥感数据土地利用和土壤侵蚀变化信息提取的方法，并采用GIS空间分析技术，揭示土地利用与土壤侵蚀变化存在着的耦合关系。研究表明，草地是控制拉萨市城关区土壤侵蚀的主要土地利用类型，草地的转变是拉萨市城关区土壤侵蚀强度变化的主要因素，因此，草地的水土流失防治是不可忽视的。此研究对不同尺度下的土地退化监测与评价等提供了一定的借鉴，为区域可持续利用规划和实施提供了科学依据。
- Abstract:
- For the hot issues of the relationship between landuse and soil erosion changes, using the multisource remote sensing image data as data sources, based on the analysis of landuse changes and the dynamic changes of soil erosion in Chengguan District of Lhasa, this article discussed the extraction method of landuse and soil erosion changes information on the basis of remote sensing data such as MSS/TM/ETM+/CBERS, etc. And using GIS spatial analysis techniques, revealed the coupling relations between the changes of landuse and soil erosion. Studies have shown that grassland is the main landuse type in Chengguan District of Lhasa, the main factor of changes of soil erosion intensity is the grassland changes, therefore, the role of grassland in preventing soil erosion can not be ignored. This study provides a reference for monitoring and evaluation land degradation of different-scale, and a scientific basis for the regional planning and implementation of sustainable use.
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备注/Memo
收稿日期:2009-11-24。
基金项目:西藏拉萨-工布江达地区环境地质综合调查评价项目（1212010818085）
作者简介:张船红（1986- ），女，四川成都人，硕士研究生，主要从事遥感地质学、地理信息系统研究。E-mail：candyzch@163.com
通讯作者:何政伟（1966- ），男，四川南部人，博士，教授，主要从事遥感地质学、地理信息系统和第四纪地质学等教学科研。E-mail：hzw@cdut.edu.cn