Environmental Sensitivity Evaluation of Aba Tibetan and Qiang Autonomous Prefecture Based on GIS and RS

Abstract

This study takes Aba Tibetan and Qiang Autonomous Prefecture in China as the research object, and establishes an ecological sensitivity evaluation index system based on the current ecological environment of the state using land use data, combined with field surveys and socio-economic and other data. And the ecological sensitivity evaluation was carried out based on Geographic Information System (GIS) and Remote Sensing (RS) using a hierarchical analysis method. The results of the study showed that the overall ecological sensitivity of Aba Tibetan and Qiang Autonomous Prefecture showed spatial variability with low in the northwest and high in the southeast; among them, the extremely sensitive area accounted for only 3.53% of the total area, the moderately sensitive area accounted for 30.10% of the total area, and the slightly sensitive area and insensitive area accounted for 47.82% of the total area. The study provides a theoretical basis for the ecological economy and sustainable development of the state.