Ecological network construction is an important measure to achieve biodiversity protection and sustainable development.Based on the Landsat remote sensing image data of Huihe wetland in 2020,this paper firstly used MCR model to construct the resistance surface of the study area,calculated the minimum cost path and constructed the ecological corridor.By means of gravity model,important ecological corridors were selected from all potential corridors,and the landscape ecological network of Huihe wetland was constructed.According to the results of ecological network construction,suggestions for regional ecological protection optimization were put forward.The results showed that there were 13 important wetland ecological sources in the study area,with a total area of 790.76 km2,mainly distributed in the west,north and central south of the study area.There are 78 corridors in total,of which 20 are important corridors and 58 are general corridors,showing a chain shape in the north and east and a dense network in the central and southern parts.The evaluation results provide a scientific basis for the protection of ecosystem and biodiversity of Huihe wetland.
维普
万方数据