近30年杭州市城市化进程中土地利用变化

发布时间：2018-06-19 03:55

本文选题：城市化 + 土地利用变化　；参考：《浙江大学学报(工学版)》2017年07期

【摘要】：基于1985~2015年的杭州市遥感卫星影像数据,使用ArcGIS和ENVI提取土地利用类型信息.使用土地利用类型面积比例、土地利用动态度、土地利用转移矩阵以及耕建系数,对杭州市的土地利用情况进行定量分析.结果表明:1)建设用地逐年递增,耕地逐年递减,水体和林地波动较小.2)建设用地总量和转变程度逐年递增,主要来源是耕地;耕地总量和转变程度逐年递减,主要来源为林地和建设用地;林地和水体的主要转变来源和去向都是耕地.3)八区土地城市化进程存在时序差异,耕建系数可以较好地反映土地城市化进程.4)上城区、下城区和拱墅区处于均衡阶段,江干区、滨江区和西湖区处于趋稳阶段,萧山区和余杭区处于转变阶段.
[Abstract]:Based on the remote sensing satellite image data of Hangzhou from 1985 to 2015, ArcGIS and ENVI were used to extract land use type information. Using land use type area ratio, land use dynamic degree, land use transfer matrix and tillage coefficient, the land use situation in Hangzhou was analyzed quantitatively. The results show that the total amount and transformation degree of construction land are increasing year by year, the cultivated land is decreasing year by year, the fluctuation of water body and forest land is small, the main source is cultivated land, the total amount of cultivated land and the degree of transformation are decreasing year by year. The main sources are forestland and construction land, the main source and direction of the change of forestland and water body are cultivated land. 3) there are time series differences in the process of land urbanization in the eight districts, and the coefficient of tillage and construction can better reflect the process of urbanization of land. 4) Upper urban area. Xiacheng District and Gongshu District are in equilibrium stage, Jianggan District, Binjiang District and West Lake District are in stable stage, Xiaoshan District and Yuhang District are in transition stage.
【作者单位】：浙江大学地球科学学院;
【基金】：教育部人文社科研究规划基金资助项目(12YJAZH042) 浙江省自然科学基金资助项目(Y15G030020)
【分类号】：F299.23

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