ZHU Wei,WEI Hong,PENG Yue,et al.The Effects of Different Land Use Types on the Change Characteristics of Soil Erosion in the Area Around Three Gorges Reservoir Region[J].Research of Soil and Water Conservation,2007,14(03):376-380,383.
三峡库周区不同土地利用方式下土壤侵蚀变化特征——以重庆市璧山县为例
- Title:
- The Effects of Different Land Use Types on the Change Characteristics of Soil Erosion in the Area Around Three Gorges Reservoir Region
- Keywords:
- land use; soil erosion; remote sensing; geographic information system; landscape structure; Three Gorges Reservoir Region
- 分类号:
- P208.24;F301.24
- 摘要:
- 三峡工程水库淤积是影响三峡工程能否正常运行的一个关键问题，三峡库区周边地区的土壤侵蚀造成泥沙淤积问题对三峡工程的威胁较大;在遥感与GIS技术的支持下，通过遥感影像解译获取库周地区璧山县199年和2000年土地利用与土壤侵蚀数据，建立土地利用与土壤侵蚀的面积转移矩阵，采用景观格局指数探讨了两期土壤侵蚀的格局及变化特征.结果表明：不同的土地利用方式对土壤侵蚀有着不同的影响，土壤侵蚀的造成既与人类砍伐和开垦林地、坡耕地种植有关，也与山区的地形地貌有关;结合璧山县年来对土壤侵蚀治理的实际措施来证实选择合理的土地利用方式，以及实行天然林保护等工程对于高效利用土地资源，控制水土流失，实现区域经济的可持续发展具有重要意义;
- Abstract:
- In Three Gorges Reservoir Region,the soil erosion is known for its severity in the world,especially the soil erosion in the area around it.In order to study the relations between land use and soil erosion in the study area,the technologies of remote sensing and geographical information system are used.At first,the data of land use and soil erosion were gotten from Landsat TM Images by experts interpretation,then the area transition matrix is built and landscape pattern indices are used for analyzing the pattern and the change relationship between land use and soil erosion.The results show that the soil erosion is affected by both the irrational land use and the geographic characteristic.Rational land use pattern and optimized land use structure are significantly important for regional sustainable development from the facts that the effective measures have been taken in Bishan.
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备注/Memo
收稿日期:2006-7-20
基金项目:西南大学自然科学基金资助项目
作者简介:朱韦(1981- )，女，安徽铜陵人，应用生态学硕士研究生.