Analysis on Land Use Change and Its Driving Forces in Kirin District of Qujing City, 2005-2015

Abstract

In order to explore the evolution process of land use and the driving forces of Kirin district of Qujing city, the remote sensing images of which in the three years of 2005, 2010 and 2015 were used as data sources. The classification of the objects was classified by supervised classification and unsupervised classification, then the data processing and spatial superposition analysis of the classification results were carried out based on GIS technology. Finally, the evolution of land use and its driving forces in the region from 2005 to 2015 were analyzed through the results data. The results showed that the land use change in Kirin district of Qujing city was significant in ten years, and the area of construction land and forest land continued to increase. The area of cultivated land and other agricultural land decreased significantly, and the area of bare land increased first and then decreased, at the same time the area of water area increased by a certain extent. The changes of land use in the region were caused by the combined effects of natural conditions, economic development, population growth, government policies and traffic factors, among them, economic development and population growth were the main driving forces. The comprehensive use of GIS, RS and statistical analysis method is the main innovation of this research, and the results can provide a decision basis for the land planning and environmental protection of the region.