Abstract
The increasing scale of urbanization and human activities has resulted in the fragmentation of natural habitats, leading to the reduction of ecological landscape connectivity and biodiversity. Taking Nanping as the study area, the core areas with good connectivity were extracted as ecological sources using a morphological spatial pattern analysis (MSPA) and landscape connectivity index. Then the ecosystem service functions of the ecological sources were evaluated based on the InVEST model. Finally, we extracted the potential ecological corridor based on the land type, elevation and ecosystem service functions. The results showed that the ecological source with higher landscape connectivity is distributed in the north and there are clear landscape connectivity faults in the northern and southern regions. Moreover, the areas with high habitat quality, soil retention and water production are mainly distributed in the northern ecological source areas. The 15 potential ecological corridors extracted were distributed unevenly. Among them, the important ecological corridors formed a triangle network, while the general ecological corridors were concentrated in the northwest. Therefore, it is suggested that the important core patches in the north be protected, and the effective connection between the north and south be improved. These results can provide a scientific basis for ecological construction and hierarchical management of the ecological networks.
Highlights
Rapid urbanization, population growth and high-intensity regional development accompanied by poorly managed land use result in a series of environmental problems, including the fragmentation of natural habitats and the reduction of regional biodiversity [1,2,3]
Ecological service functions, including habitat quality, soil retention functions and water production services, were incorporated into the construction of an ecological network, and a potential ecological corridor was built in Nanping through the integration of the landscape structure and ecological functions
This study applied morphological spatial pattern analysis (MSPA) and landscape connectivity indicators to identify the ecological source of Nanping, and used the InVEST
Summary
Population growth and high-intensity regional development accompanied by poorly managed land use result in a series of environmental problems, including the fragmentation of natural habitats and the reduction of regional biodiversity [1,2,3]. These environmental problems result in the destruction of the stability and sustainability of ecosystems, which impact human health and productivity [4,5]. The pixels forming the inner edge would be classified as perforations
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