Academic Journal of Environment & Earth Science, 2024, 6(6); doi: 10.25236/AJEE.2024.060606.
Jianglin Zhao
School of Mathematics, Sichuan Minzu College, Kangding, China
This paper considers the current situation of grassland degradation in Ganzi Prefecture. The fuzzy analytic hierarchy process (FAHP) is applied to establish an index evaluation system. The current situation of grassland degradation in Ganzi Prefecture is divided into three dimensions, and 11 index factors affecting grassland degradation in Ganzi Prefecture are determined. The geometric mean method is used to determine the weights of each evaluation index. The results show that human-caused destruction and abnormal climate are the main factors of grassland degradation in Ganzi Prefecture, and their combined contribution to the grassland degradation rate reaches 72.32%. Over-grazing, decreased precipitation, rodent and pest damage, and over-reclamation are the four main reasons for grassland degradation in Ganzi Prefecture, and the total contribution rate of these four factors is 41.14%. On the other hand, the fuzzy comprehensive evaluation (FCE) is used to conduct a comprehensive evaluation of the current situation of grassland degradation in Ganzi Prefecture. The evaluation results show that the comprehensive evaluation result of the current situation of grassland degradation in Ganzi Prefecture is "slightly degraded".
Ganzi Prefecture; grassland degradation; fuzzy analytic hierarchy process; fuzzy comprehensive evaluation
Jianglin Zhao. Evaluation of the Current Status of Grassland Degradation in Ganzi Prefecture Based on FAHP-FCE. Academic Journal of Environment & Earth Science (2024), Vol. 6, Issue 6: 39-44. https://doi.org/10.25236/AJEE.2024.060606.
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