Evaluation and prediction of suitable habitats for important species in environmental impact assessment of highway projects based on MaxEnt model
The highway construction project is a linear project.Its main impact on the ecological environment is the isolation and cutting of species'habitats,resulting in the reduction of the area of suitable habitats for species,accompanied by light pollution and the decline of acoustic environment quality.Based on the proposed highway passing through the habitat of black billed grouse,a national first-class protected animal,MaxEnt was used as the prediction model to simulate the distribution changes of the suitable habitat of black billed grouse before and after the highway construction.The results showed that the AUC value of the working characteristic curve of black billed grouse based on the maximum entropy model was 0.945,which was highly reliable.The analysis of suitable areas showed that black billed grouse were concentrated in the core area and buffer area of the reserve,and the area of unsuitable areas increased significantly after the construction of the project.The results show that the maximum entropy model can well simulate the distribution of the suitable habitat of black billed grouse in the study area before and after the project construction,and clarify the impact of highway project construction on the distribution of black billed grouse.The research results can provide reference for the evaluation and prediction of the suitable habitat in the environmental impact assessment.
Ecological environment impact assessmentmaximum entropyspecies distribution modelhighway project
NETL
NSTL
万方数据
