Land use change, as a concentrated manifestation of the disturbance of the natural environment by human activities, is an important factor affecting the geological environment. This study quantitatively extracts the land use change data of the study area with the help of GIS technology, and summarizes the trend of land use change in terms of change magnitude, change speed and transfer type. With the help of RULSE model, soil erosion is used to characterize the geological environment and analyze its response to land use change. The data show that during the period from 2000 to 2020, the overall land use structure of Daqing City has a small change amplitude, a fast change speed and a frequent land transfer. The arable land area of Daqing City expanded by 980.78 km², the grassland area shrank by 1273.64 km², and the value of the integrated land mobility changed from 0.43 (2000-2010) to 0.5 (2010-2020). Soil erosion in Daqing City was improved, and the average annual soil loss A was reduced from 88.28 in 2000 to 48.28 in 2020.The percentage of cultivated land area increased by a total of 4.63% during the study period, while the percentage of soil loss increased by 7.86%. The percentage of grassland area decreased by 6.01% while the percentage of soil loss increased by 11.78%.
