Abstract: Based on the land use data of Dangyang City, Yichang City, Hubei Province in 2000, 2010 and 2020, 13 factors such as nature, economy and society were selected as the driving factors affecting the change of cultivated land. Using the land use transition matrix and the kernel density analysis, the dynamic degree model of cultivated land use was introduced, combined with the geographic detector method, to explore the spatiotemporal variation characteristics and main driving factors of cultivated land in various towns in Dangyang City from 2000 to 2020. The results showed that the distribution of cultivated land generally showed a decreasing trend from southeast to northwest. From 2010 to 2020, the cultivated land in Dangyang City changed significantly, and the cultivated land area decreased. Economic and social factors are the main factors affecting the distribution of cultivated land, but when interacting with other factors, the impact on cultivated land is weakened, and natural factors have interactive effects on cultivated land.

Key words: spatiotemporal change of cultivated land, transition matrix, driving factor, geographic detector