Spatial And Temporal Characteristics And Forecast Analysis Of Land Use Change In Changchun City In Recent 30 Years

Land occupies an important position in the human survival factors.Human life activities are based on land,so it can be called one of the important resources.In this case,land use change has become a topic worthy of discussion.And through the analysis and prediction of the existing laws of land use change or conversion,we can make clear the change rate of land use,and at the same time,we can make corresponding research and Analysis on the overall trend of land use change in different spaces.This is mainly because the essence of the dynamic change of land use is the concrete utilization and transformation of land for the sake of economic benefits.Therefore,the study of the dynamic change of land use can predict the general trend of human land use for production and living activities in a certain range.Based on RS and GIS technology,this paper collects,processes and analyses six specific TM remote sensing images of Changchun City in 1980,1990,2000,2005,2010 and 2015 using ENVI5.1 software,and interprets and interprets the remote sensing images professionally and pertinently through the specific land use classification system based on the data.On this basis,the corresponding data of land use change grid are vectorized,and then the land use change information of Changchun City can be extracted by using ArcGIS software.The land use change model can be synthetically utilized in combination with the relevant data of Changchun administrative division map,statistical yearbook and economic data from 1980 to 2015.This paper analyzed the change of land use quantity,speed,degree and center of gravity,and summarized the spatial and temporal characteristics of land use in Changchun based on the above data.On the basis of the above research,the driving mechanism of land use change in Changchun is further analyzed by combining qualitative and quantitative methods,and the general analysis steps are summarized as follows.Firstly,data collation and qualitative analysis of the natural and socio-economic factors peculiar to Changchun are carried out.Secondly,the driving factors are selected,SPSS software is used,principal component analysis and multiple linear regression analysis are used to quantitatively study the social and economic factors of Changchun City.According to the grasp of land use change data and driving factors,the CA-Markov model is used to predict the land use change status of Changchun in 2025,2030,2035 and 2040.Finally,the results of land use change analysis in Changchun City were compared with the actual situation and thought deeply,and then scientific and reasonable suggestions were put forward.