Dynamic Change Analysis of Land Use Based on RS and GIS ——Taking Nanjing as an Example
This passage based on the 2007 and 2014, 2 of satellite remote sensing image data (Landsat TM/ ETM) and Nanjing statistical yearbook, use the data by remote sensing and geographic information system technology for processing platform, Quantitative analysis of the change of cultivated land, forest land, construction land and water area in Nanjing from 2007 to 2014, qualitative analysis of the reasons for the change of land use.The research shows that : (1) The change of land use in Nanjing city is big, farmland and construction land's change are the most significant, and the main source of construction land is farmland.(2) The growth of population and economic development are driving the cultivated land into construction land in Nanjing city, and to a certain extent, government land-use policy and planning slow down the speed of construction land occupying other land.
Land use changeRemote sensingGeographic information system