Land Use Changes and Its Driving Forces Analysis Based on Geo-informatic Tupu in Chengdu
The analysis of land use can be helpful for the rational planning of urban development and the reasonable allocation of re-sources.Based on the land use data of Chengdu city in 2000,2010,and 2020,the characteristics and transferring directions of land use changes in Chengdu city are explored using the Geo-informatic Tupu method,and the contribution of driving factors to land use changes is obtained by combining the PLUS model.The results show that:(1)From 2000 to 2020,the decrease area of farmland in Chengdu is the largest,and the increase area of construction land is the largest;(2)The main change direction of land use from 2000 to 2010 is the change from grassland to forest land,and from 2010 to 2020 the change is from cultivated land to construction land;(3)In the pattern of land use change,the types of changes in Chengdu in the later stage are more active than in the earlier stage,with the proportion of newly added construction land accounting for 63.59%.Factors such as population density,GDP,and transportation conditions have a more significant driving effect on the expansion of construction land.
NETL
NSTL
万方数据
