Analysis on Dynamic Change and Driving Force of Land Use in Guangyuan City of Sichuan from 2005 to 2018

In order to study the change of land use in Guangyuan City of Sichuan in recent years, based on the 2005, 2010, 2015, 2018, four remote sensing monitoring of land use data and land survey data and statistical yearbook, with the support of ArcGIS technology, with the help of a single dynamic change of land use, land transfer matrix and the comprehensive index of land use change research methods, analyzed the nearly 13 years in Guangyuan City land use dynamic change characteristics and motivation. The results show that: （1）from 2005 to 2018, the area of forest land, water area and construction land in Guangyuan increased, while the area of cultivated land, grassland and unused land decreased. The change rate of each local class changed from large to: construction land > water area > unused > grassland > forest land > cultivated land, which changed significantly from 2015 to 2018. The change rate and range of each local class were significantly different, and the transfer between different local classes was frequent. （2）The comprehensive land use index of Guangyuan City is rising rapidly, the land use level is gradually improved, and the ecological environment quality is improving. （3）The main driving factors influencing the land use change in Guangyuan City from 2005 to 2018 are the economic development, the development of transportation and tourism, the factor of population growth and the promotion of the policy of returning farmland to forests. The research results can provide decision basis for the land and urban ecological sustainable development of Guangyuan City in the later period.