地形对重庆市土地利用动态变化影响分析
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摘要
对重庆市2001～2016年的土地利用进行动态变化研究,为该地社会经济发展战略的制定提供科学参考。以Landsat影像为基础,借助RS和GIS技术,分析了重庆市15 a来土地利用的时空演变及地理空间分异特征与规律。结果表明:①重庆市的土地利用类型以耕地和林地为主,耕地、草地面积减少,林地、建设用地、水域和未利用地面积增加,建设用地动态度变化最大,林地最小。②土地利用类型的转移主要存在于耕地和建设用地、耕地和林地之间。③耕地、草地、林地随着坡度的增加,土地利用类型面积变化变慢,未利用地和水域随着坡度的增加,土地利用类型面积变化变快,建设用地在各级坡度上面积变化都快。④建筑用地在各级高程范围内面积增加都十分迅速,在高程小于200 m的地区是各种土地利用类型面积变化最大的区域,各种土地类型在该区域存在最大的竞争关系。
The study on the dynamic changes of land use in Chongqing from 2001 to 2016 provides a scientific reference for the development of the local social and economic development strategy. Based on landsat image, with the help of RS and GIS, the spatial and temporal evolution of land use and the characteristics and laws of the spatial differentiation of the land were analyzed. The results showed that(1) the main types of land use in Chongqing were cultivated land and woodland. From 2001 to 2016, arable land and grassland area decreased, woodland, construction land, water area and unused land area increased. The dynamic change of construction land was the largest and the forest land was the smallest.(2) The transfer of land use type mainly existed between cultivated land and construction land, cultivated land and woodland.(3) With the increase of slope, the area change of cultivated land, grassland and woodland became slower, the area of unused land and water area changed rapidly with the increase of slope, and the area of construction land on slopes of all levels changed rapidly.(4) The area of construction land increased rapidly within all levels of elevation. In the area with elevation less than 200 m, the area change of various land use types were the largest, and the various land types had the greatest competition in this region.
The study on the dynamic changes of land use in Chongqing from 2001 to 2016 provides a scientific reference for the development of the local social and economic development strategy. Based on landsat image, with the help of RS and GIS, the spatial and temporal evolution of land use and the characteristics and laws of the spatial differentiation of the land were analyzed. The results showed that(1) the main types of land use in Chongqing were cultivated land and woodland. From 2001 to 2016, arable land and grassland area decreased, woodland, construction land, water area and unused land area increased. The dynamic change of construction land was the largest and the forest land was the smallest.(2) The transfer of land use type mainly existed between cultivated land and construction land, cultivated land and woodland.(3) With the increase of slope, the area change of cultivated land, grassland and woodland became slower, the area of unused land and water area changed rapidly with the increase of slope, and the area of construction land on slopes of all levels changed rapidly.(4) The area of construction land increased rapidly within all levels of elevation. In the area with elevation less than 200 m, the area change of various land use types were the largest, and the various land types had the greatest competition in this region.
引文
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[11] 范科红,李阳兵.1986-2007年重庆主城区土地利用变化及其驱动因素研究[J].水土保持研究,2012,19(1):168-173.
[12] 陈倩,马泽忠,郑丽,等.重庆山地城市区1985-2010年土地利用变化特征研究[J].水土保持研究,2013,20(4):194-198.
[13] 张丽,杨国范,刘吉平.1986-2012年抚顺市土地利用动态变化及热点分析[J].地理科学,2014,34(2):185-190.
[14] 王思远,张增样,周全斌,等.基于遥感与GIS技术的土地利用时空特征研究[J].遥感学报,2006,6(3):223-228.
[15] 李月臣,刘春霞,赵纯勇,等.三峡库区重庆段水土流失的时空格局特征[J].地理学报,2008,63(5):502-513.
[2] 安美玲,张勃,孙立炜,等.黑河上游土地利用动态变化及影响因素的定量分析[J].冰川冻土,2013,35(2):355-362.
[3] 周启刚,陈丹,陈倩.重庆山地都市区1985-2010年土地利用重心迁移研究[J].水土保持研究,2013,20(4):189-193.
[4] 杨文轩,庞红丽,张旭.兰州市近10年的土地利用动态变化研究[J].水土保持研究,2013,20(3):231-236.
[5] 金石柱,刘志锋.基于TM影像的延吉市土地利用动态变化研究[J].地理科学,2011,31(10):1249-1253.
[6] Bürgi M,Anna M H,Nina S.Driving Forces of landscape change-current and new directions[J].Landscape Ecology,2004(19):857-868.
[7] Wu Q,Li H Q,Wang R S,et al.Monitoring and predicting land use change in Beijing using remote sensing and GIS[J].Landscape and Urban Planning,2006(78):322-333.
[8] Zhang K,Yu Z,Li X,et al.Land use change and land degradation in China from 1991to 2001[J].Land Degradation and Development,2007(18):209-219.
[9] Thielen D R,San José J J,Montes R A,et al.Assessment of land use changes on woody cover and landscape fragmentation in the Orinocosavannas using Fractal distributions[J].Ecological Indicators,2008(8):224-238.
[10] 陈丹,周启刚,何昌华,等.重庆山地都市区1985-2010年土地利用变化地形特征分异研究[J].水土保持研究,2013,20(5):210-215.
[11] 范科红,李阳兵.1986-2007年重庆主城区土地利用变化及其驱动因素研究[J].水土保持研究,2012,19(1):168-173.
[12] 陈倩,马泽忠,郑丽,等.重庆山地城市区1985-2010年土地利用变化特征研究[J].水土保持研究,2013,20(4):194-198.
[13] 张丽,杨国范,刘吉平.1986-2012年抚顺市土地利用动态变化及热点分析[J].地理科学,2014,34(2):185-190.
[14] 王思远,张增样,周全斌,等.基于遥感与GIS技术的土地利用时空特征研究[J].遥感学报,2006,6(3):223-228.
[15] 李月臣,刘春霞,赵纯勇,等.三峡库区重庆段水土流失的时空格局特征[J].地理学报,2008,63(5):502-513.