| 张沐锋 1,2，陈 平 1，刘博文 2,3，苟登文 2,3，宫清华 2,3.基于最小阻力模型的汕头市自然保护地网络构建[J].广东农业科学,2020,47(5):127- |
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基于最小阻力模型的汕头市自然保护地网络构建 |
| 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 |
| 中文关键词: INVEST 模型 最小阻力模型 自然保护地 网络 生物多样性保护 |
| 英文关键词: INVEST model MCR natural reserve network biodiversity conservation |
| 基金项目:119 |
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| 摘要点击次数: 1405 |
| 全文下载次数: 610 |
| 中文摘要: |
| 【目的】自然保护地是国家生态保护建设的核心载体，在生物多样性保护中起着至关重要的作用，如何构建科学有效的自然保护地体系逐渐成为研究热点。【方法】基于岛屿生物地理学理论，探索自然保护地网络构建，以汕头市为研究区域，通过 INVEST 模型与生态敏感性、生态服务系统等评价划定合理的生态源地，并选取阻力因子基于 MCR 计算得出潜在生态廊道，结合现有的汕头市自然保护地体系，进行补充空缺区域、增设生态节点，完善自然保护地网络构建。【结果】生态源地总面积 74 499.23 hm2，占总面积的 35.41%，生态廊道为 41 条，长度为 487.25 km，生态节点 30 个，其中新增生态节点 4 个，主要为廊道相互交错和生态较为薄弱的区域。【结论】自然保护地网络的构建，增强了物种之间的交流与迁徙，大幅度提高了生境栖息地质量。在梳理了自然保护地网络的构建方法基础上，改善了每个技术步骤，为我国自然保护地网络构建提供了科学方法和实际指导。 |
| 英文摘要: |
| 【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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