The Study With Land Use Change Pattern In Huangling County Based On ArcGIS

The Land use change has become one of the hottest research topics,nowadays,in this paper,Huangling County is chosen as the research area,and the impact of human activities on land use is taken as the breakthrough point.Based on the results of Huang ling County remote sensing image interpretation at 2009,2013 and 2017,using the method of combining RS and GIS Technology analyze the changes,and analyze the Land use change for Huang ling County at 8 years.Prediction of land use change in 2021 by using CA-Markov model in IDRISI,Combined with the prediction results,we will conduct in-depth research on the change trend of various categories in Huangling County.The main research content and research results of this paper are as follows:(1)Interpretation of three remote sensing images in Huangling County using ENVI5.0 software.The proportion of various types of land is quite different,among them,the woodland accounts for about 82%,the agricultural land accounts for about 10.55%,and the construction land accounts for about 0.7%.The spatial structure of land use presents a series of differentiation characteristics from the east to the west,and the diversity of land types in the eastern loess area is distinctive.(2)Using the function of space statistical,spatial analysis,database operation and graphic display in ArcGIS10.0,and combining with Excel data chart,Carry out a detailed analysis for the total area change,the spatial change of land use and the comprehensive change rate of the year of land use.From 2009 to 2017,the land use structure of the research area changed greatly.There is a large difference between the transfer and transfer of various land types,among which construction land changes most rapidly and the area is increasing year by year.(3)On the basis of fully analyzing the law of land change,use CA-Markov model to predicted the types of land use.The results show that the agricultural land will continue to decrease,the bare land will continue to increase,and the construction land will increase year by year.In terms of spatial change,agricultural land and construction land are concentrated around the construction land,especially at the junction of agricultural land and construction land.(4)According to the prediction results of land use change in the study area,when formulating the policy of sustainable land development,we should not only analyze the law of land use change,but also increase the control over the transfer and transfer of land.