Construction and Optimization of Ecological Corridor Based on MCR and HY Analysis in Putian

In this study, taking the main urban area of Putian City as an example, the morphological spatial pattern approach(MSPA) combined with landscape connectivity analysis is used to screen important ecological source sites, and the minimum cumulative resistance model(MCR) and gravity model approach are applied to extract potential ecological corridors in the study area, while the hydrological analysis model(HY) is combined to identify radiation corridors and ecological function nodes in the study area, and finally construct and optimize ecological corridors in Putian City. The results show that based on MSPA and landscape connectivity index, a total of 14 core source sites were identified; using MCR and gravity model, a total of 29 corridors were identified, including 7 primary corridors, 10 secondary corridors and 12 tertiary corridors; combined with the hydrological analysis method, a total of 205 radiating corridors and 53 ecological function nodes were identified, including 5 primary nodes, 17 secondary nodes and 31 tertiary nodes. key areas for various types of ecological restoration were identified. Ecological node construction strategies were extracted.. The results of this study provide a scientific basis for the study of ecological corridor construction and ecological node protection temporality in Putian City.