Suggestions for Optimizing the Ecological Security Pattern in Chaohu Basin Based on Landscape Types and Ecological Risk Assessment
Constructing ecological security pattern scientifically and reasonably is an important guarantee for regional sustainable development.In order to optimize the ecological security pattern zoning of the Chaohu Basin,based on remote sensing data of landscape types in the basin from three periods in 2010,2016,and 2022,this paper investigates the spatiotemporal changes in landscape ecological risk of the basin in recent years by using a landscape risk assessment model,furthermore,puts forward some optimization suggestions for the ecological security pattern zoning of the basin by combining the characteristics of natural background.The results show that from 2010 to 2022,the number of low-risk small basin in Chaohu Basin decreased,the number of lower-risk small basin began to increase in the later period,the number of medium-risk small basin increased,moreover the number of higher-risk and high-risk small basin showed a decreasing trend.Upon the comparison,this paper reveals that there is significant variation in landscape ecological risk within and between major basins in the region,however,within the same basin,there is no leapfrog change in the variation levels,but transitions between adjacent levels.Therefore,the characteristics of landscape ecological risk that changes over time within the same major basin exhibit minimal differences.Based on the natural background and the spatiotemporal variation characteristics of landscape risk in Chaohu Basin,this paper proposes the optimization suggestions of"two zones,three corridors,four patches and two belts"for the ecological security pattern zoning of the basin.
万方数据
维普
