The main purpose of building national parks in China is to protect nationally representative natural ecosystems and maintain the integrity of their structures, processes, and functions. Landscape connectivity, as an important indicator to measure ecological processes, is of great significance to the migration and dispersal of species within a region. Based on the habitat characteristics of the target species, the study of landscape connectivity in Qianjiangyuan National Park, which aims to protect forest ecosystems, can provide a scientific basis for the optimization of its functional areas and the construction of biological corridors.
The disturbed landscape of the study area is dominated by tea plantations and drylands, with central roads being an important factor affecting the overall landscape connectivity. In terms of the distribution of key habitat patches, the mountains have a high value. In terms of area, their size is not directly proportional to their importance for maintaining landscape connectivity in the region, but large area patches are generally of higher importance. In terms of distance, key habitats that are closer to each other have a stronger correlation and a greater possibility for species migration. Combined with the functional zoning of Qianjiangyuan National Park, the setting of strictly protected areas and recreational areas is reasonable, and traditional use areas and ecological conservation areas could be appropriately adjusted according to the distribution of key habitats. The important corridor in the middle of the ecological conservation area is crucial for the overall connectivity of the national park, and the connectivity between strict protected area will depend on successful protection of the ecological conservation area.
Based on the analysis of landscape connectivity in Qianjiangyuan National Park, we discussed the main factors that currently affect the landscape connectivity of this area, as well as the rationality of the current setting of its functional zoning, and put forward some targeted suggestions for improving its connectivity.