Taking Baiyangdian Basin as the research object, this paper selects 6 evaluation indexes, including elevation, slope, slope direction, water buffer zone, NDVI and land use type, and uses GIS technology and AHP to analyze ecological sensitivity. The results showed as follows: (1) According to the degree of impact on ecological sensitivity, NDVI, land use type, water area buffer, elevation, slope and slope direction were ranked from large to small. (2) NDVI factor has the greatest influence on the ecological environment sensitivity of Baiyangdian Basin among the 6 ecological assessment factors, and the weight value is 0.31. (3) The ecological sensitivity of Baiyangdian basin is high, and the extremely sensitive area and the highly sensitive area account for 39.67% of the total area. The proportion of moderately sensitive areas was the highest (28.78%). The proportion of low sensitive areas was 20.74%. The proportion of extremely low sensitive areas was the lowest (10.81%). The extremely sensitive and highly sensitive areas of Baiyangdian basin are mainly distributed in mountainous areas and river basins in northwest China. The extremely low sensitive areas are mainly distributed in the areas where human activities are concentrated, such as cities and villages.

Tan Shishuai, Huang Weiyong. Ecological Sensitivity Analysis of Baiyangdian Basin Based on GIS. Academic Journal of Environment & Earth Science (2024), Vol. 6, Issue 5: 73-81. https://doi.org/10.25236/AJEE.2024.060510.

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