Abstract
Coastal wetlands are crucial ecosystems at the interface between land and sea. In the context of economic development and urbanization, these wetlands face challenges such as reduction in area and fragmentation. Ecological networks can connect fragmented habitats, creating corridors for material, information, and energy transmission. This is vital for maintaining biological and landscape diversity and ensuring the healthy development of ecosystems. However, there is currently no research on the ecological networks in the Hebei-Tianjin coastal wetlands. In this study, the morphological spatial pattern analysis method is employed to identify wetlands sources, while the minimum cumulative resistance model is used to extract potential ecological corridors. By combining these with existing river corridors, the ecological network of coastal wetlands in Hebei and Tianjin is constructed, and regional network characteristics are analyzed. Critical areas of ecological protection and restoration are determined, including important ecological corridors, ecological pinch points, and ecological breakpoints. The results showed that: (1) The ecological network of Hebei-Tianjin coastal wetlands consisted of 38 ecological sources, 171 potential ecological corridors, and 399 river corridors, with a total area of 851.31 km2. (2) Key ecological protection and restoration areas were proposed, including 35 crucial potential wetlands ecological corridors, 343 ecological pinch points, and 99 ecological breakpoints. Targeted restoration of these critical areas could significantly improve the connectivity of wetlands ecological networks. (3) At present, priority should be given to protecting critical ecological corridors and existing river corridors with high similarity to potential ecological corridors. The findings of this study can provide a scientific basis for the network construction and protection of Hebei-Tianjin coastal wetlands.
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This study was supported by the Hebei Provincial Key Research Projects (No.22374202D).
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Feng Wang: Conceptualization, Methodology, Investigation, Data curation, Writing – original draft, Writing – review & editing. Hui Gao: Data curation, Investigation, Methodology, Writing – original draft. Jintong Liu: Project administration, Supervision, Writing – review & editing. Tonggang Fu: Conceptualization, Data curation, Investigation, Methodology. Fei Qi: Software, Writing – review & editing. Yue Gao: Software. Liang Zhao: Data curation.
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Wang, F., Gao, H., Liu, J. et al. Study on the Characteristics of Ecological Network and Critical Areas of Ecological Restoration in Hebei-Tianjin Coastal Wetlands. Wetlands 44, 24 (2024). https://doi.org/10.1007/s13157-024-01771-1
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DOI: https://doi.org/10.1007/s13157-024-01771-1