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| Construction of Natural Reserve Network in Shantou City Based on Minimum Cumulative Resistance Model |
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| DOI：10.16768/j.issn.1004-874X.2020.05.016 |
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| Abstract: |
| 【Objective】Natural reserve is a core carrier of national ecological protection construction and plays a vital role in biodiversity protection. How to build a scientific and effective natural reserve system has gradually become a research hotspot.【Method】Based on the theory of island biogeography, the construction of national natural reserve network was explored. Taking Shantou City as the study area, a reasonable ecological source area was demarcated through the INVEST model and evaluation of ecological sensitivity and ecological service system etc., the resistance factors were selected and the potential ecological corridor was obtained based on MCR calculation. Combined with the existing system of natural reserve in Shantou City, vacancy areas were supplemented and ecological nodes were added to improve the construction of natural reserve network.【Result】The ecological source covered an area of 74 499.23 hm2, accounting for 35.41% of the total area. There were 41 ecological corridors, with a length of 487.25 km, and 30 ecological nodes, including 4 new ecological nodes, which were mainly the areas with mutual interlacing corridors and weak ecological environment.【Conclusion】The construction of natural reserve network enhances the communication and migration between species and greatly improves the habitat quality. On the basis of summarizing the construction method of natural reserve network, each technical step is improved, and the scientific method and practical guidance are provided for the construction of natural reserve network in China. |
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