Construction of Ecological Network in Dongchuan District Based on CA-Markov Model
Taking Dongchuan District,Kunming as the research area,the land use pattern of Dongchuan District in 2030 was predicted by CA-Markov model,and its ecological environment quality was evaluated by In-VEST model.It was found that the pattern of the land use changed little from 2020 to 2030.The land use types were mainly forestland,grassland,and cultivated land.The distribution of ecological environment quality level was low in the middle and high in the east and west.The ecological sources were identified by morphological spa-tial pattern analysis.A temporal ecological network in Dongchuan District was constructed by minimum cumula-tive resistance model(MCR).Through comparison,it was found that the ecological network structure of Dong-chuan District changed significantly from 2010 to 2030.The ecological network was evaluated by network clo-sure index,network connectivity index and network connectivity rate,the results showed that the complexity of the ecological network in Dongchuan District was increased,the restriction of biological migration and energy flow was decreased,and ecological protection and restoration should be continued in the future development.
Ecological networkCA-Markov modelLand use patternEcological environment qualityDongchuan District
万方数据
维普
