Identification of Ecological Management Zoning on Arid Region from the Perspective of Risk Assessment

Strengthening ecosystem monitoring and improving the efficiency of ecological risk assessment are great significance for sustainable development ecosystems in an arid area. Using remote sensing data land use, status typical areas is assessed, its spatial heterogeneity analyzed from perspective space-time, key management finally identified. The results show that (1) transformation mode landscape was dominated by medium–low to medium risk, low as a secondary level; addition, level region increased. From 2000 2020, regional shows moderating trend. (2) difference Hexi obvious, showing gradual decline east west, west significant. (3) A total 1194 grid units identified region, accounting 43% study This provides important theoretical basis similar regions.