Method of Ecological Risk Assessment for Land Use Based on Remote Sensing Image

Abstract

Ecological risk assessment for land use can provide the basis for scientific evaluation of the impact of current human activities on land and its ecological effects.For the issue on ecological risk of land use, the method of ecological risk assessment for land use based on remote sensing image is proposed.Using remote sensing image as the main data of land use change and ecological effects, the land use situation is classified by pre-processing and analysis of remote sensing image. Combined with the estimation of solar radiation, spatial interpolation of meteorological data, atmospheric correction and geometric fine correction operations, remote sensing data is processed to improve the classification accuracy of the target area.According to the remote sensing image of land use and the analysis results of the data, as well as the dynamic model and the comprehensive evaluation conceptual model for land use, the multi-indicator assessment framework of ecological risk for land use is designed and the risk indicator system is constructed.Furthermore, the ecological risk assessment for land use in the entire region and sub-regions is completed.The research results show that the proposed method can effectively realize the ecological risk assessment for land use in the study area, which has good robustness.