Abstract
In recent years, regional climate change and the intensification of human activities have made the problem of water shortage particularly prominent. It is of great significance to conduct in-depth research on the ecological environmental impact and evaluation methods caused by the use of regional water resources. Based on the characteristics and actual conditions of Delingha City in the northwest inland river region, this article established the Northwest in terms of water conservation, vegetation stability, soil conservation, and soil quality improvement in accordance. The ecological environment impact assessment index system of Delingha City in the inland river area is combined with the analytic hierarchy process and cloud theory model to establish an evaluation model. The purpose is to scientifically and reasonably evaluate the ecological environmental impact of Delingha City in the northwest inland river area. The results show that the overall impact on the ecological environment of Delingha City is the third level and is in a good state, in which water conservation and soil quality improvement are in a good state, and the other two criterion levels are in a normal state, and the annual precipitation accounts for a larger weight.
Highlights
The northwestern inland river region is one of the extremely fragile regions of China's ecological environment
The existing quantitative evaluation methods and models can obtain the level of regional ecological environmental impact, they ignore the ambiguity of quantitative indicator description and the randomness of indicator value determination and grade division
Each criterion layer is further divided into specific indicators to select evaluation indicators that can comprehensively and fully reflect the ecological environmental impact of the study area, and analyze and evaluate the ecological impact of water resources utilization in the northwest inland river area
Summary
The northwestern inland river region is one of the extremely fragile regions of China's ecological environment. The model of the regional ecological environment impact assessment is not clear, and the method is relatively close to uniform. The existing quantitative evaluation methods and models can obtain the level of regional ecological environmental impact, they ignore the ambiguity of quantitative indicator description and the randomness of indicator value determination and grade division. This study introduced the normal cloud model into the regional land resource ecological security assessment and evaluated the ecological security of land resources in Hubei Province(Kanga Idé Soumaila et al, 2019). Each criterion layer is further divided into specific indicators to select evaluation indicators that can comprehensively and fully reflect the ecological environmental impact of the study area, and analyze and evaluate the ecological impact of water resources utilization in the northwest inland river area
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