Study on Dynamic Change of Land Use in Qingzhen City Based on GIS Technology and CA-Markov Model

With the rapid development of social economy, the sustainable use of land is becoming more and more important. Based on GIS and remote sensing technology, the work processed the land use status data of Qingzhen in 2016 and 2020, obtained the dynamic change data during the period, analyzed its land use structure, quantity and degree. Finally, we used the CA-Markov model to obtain the flow direction and probability of land use type. Results showed that the rate of non-agricultural land increase, and the rate of other land reduce. Suggestions :(1) centralization of land resources and integration of urban and rural development.(2) Continue to develop characteristic industries and create new business cards for the city.(3) Pay attention to the quality of cultivated land and rationally develop unused land