AGRICULTURAL LAND USE CHANGE AND ITS VULNERABILITY RESPONSE IN HEGANG COAL MINING AREA

As a primary classification of land use, the study of land use change and vulnerability response of agricultural lands can help provide a scientific basis for improving agroecological security. Therefore, the analytic hierarchy process (AHP) method was used to establish an evaluation index system for the assessment of agricultural vulnerability in the coal mining area of Hegang City to analyze the existing problems and the evolution of agricultural vulnerability in this area from 1994 to 2014 and to identify feasible interventions. The results showed that (1) the overall vulnerability of agricultural land in He gang City from 1994 to 2014 showed an upward trend, the vulnerability of the other agricultural land showed no significant change, whereas the vulnerability of farmland, woodland, and grassland showed an upward trend; (2) under the interference of human and coal mining environments, the adaptive capacity of agricultural land in the coal mining area in He gang City decreased yearly, whereas the exposure and sensitivity increased continuously, and the mild vulnerability of agricultural land in the coal mining area evolved to severe vulnerability. The results of this study can provide a scientific basis for the rational development and ecological protection of agricultural land in the coal mining area of Hegang City.