FAN Ke-hong,LI Yang-bing.Land Use Change and Its Driving Force Analysis in the Central Area of Chongqing City from 1986 to 2007[J].Research of Soil and Water Conservation,2012,19(01):168-173.
1986-2007年重庆主城区土地利用变化及其驱动因素研究
- Title:
- Land Use Change and Its Driving Force Analysis in the Central Area of Chongqing City from 1986 to 2007
- 分类号:
- F301
- 摘要:
- 以重庆主城区为研究区域，利用1986年、2000年和2007年3期的遥感影像和地形图，运用人机交互目视解译方法以及GIS的空间分析和数理统计功能，获得重庆主城区土地利用现状、土地利用类型转移矩阵、土地利用动态度和综合程度变化指数等专题图、数据，并结合社会经济及人口数据，对重庆主城区土地利用的时空变化的驱动力进行了分析。结果显示：（1）1986—2007年间研究区建设用地面积迅速扩大，耕地面积持续下降，林地和灌丛面积有所增加，水体的变化比例一直很小；（2）土地利用类型的变化主要是耕地与建设用地和林地之间的相互转移；（3） 1986—2007年间，研究区土地利用变化强度较大，其中以灌丛和建筑用地的单一土地利用动态度增幅最为显著，此外，研究区1986—2007年间的土地利用程度指数呈显著增长；（4）主城区土地利用变化的主要驱动因子是人口增长和经济发展，同时还受到地形、交通、政府政策、城市规划及人们环保意识提高的影响。总体来看，经济发展是土地利用变化的主导因素。
- Abstract:
- Using the case study of central area in Chongqing City, based on the Landsat TM images 1986, 2000 and 2007 for central area in Chongqing City, as well as actual land use maps and socioeconomic and demographic data, we analyzed the dynamic changes of urban land use/land cover as well as driving factors in the central area of Chongqing from 1986 to 2007. The present land use situation, the dynamic degree of land use and a land use conversion matrix were introduced to describe the temporal and spatial variation of urban land use. The results show that there were major changes in the land use structure in the study area from 1986 to 2007. The areas of shrub land and construction land had a net increase, while the cropland use types presented a net decrease, and the forestland decreased first and then increased. The major patterns of 1and use change were the conversions of the cropland to construction land and forestland, and in particular to urban construction areas. The land use comprehensive indices were 279.3 in 1986, 281.4 in 2000 and 282.3 in 2007, respectively, and the dynamic degrees of all land uses, especially, the shrub land and construction land changed a lot during the 21 years. The reasons for change and mechanism of land use include development of economy and population, landscape, industrialization policy of politics and economy. The development of economy is the main driving force, the state macroscopic policies play an important role in the structural changes of land use in this region, too.
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备注/Memo
收稿日期:2011-6-2;改回日期:2011-7-18。
基金项目:重庆师范大学校级基金项目（08XLZ12）；国家自然科学基金（40361004）；重庆市科委自然科学基金（CSTC2010BB0322）；重庆市人文地理学重点学科科研项目
作者简介:范科红（1983- ），女，陕西宝鸡人，硕士研究生，主要从事水土保持、土地利用研究。E-mail：kehong0510@163.com
通讯作者:李阳兵（1968- ），男，博士后，教授，主要研究方向：土地资源与生态环境治理。E-mail：li-yapin@sohu.com