Construction feasibility evaluation for potential ecological corridors under different widths: a case study of Chengdu in China
Construction feasibility evaluation for potential ecological corridors under different widths: a case study of Chengdu in China
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不同宽度下潜在生态廊道建设可行性评价——以成都为例
DOI：
10.1007/s11355-023-00547-9
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发表时间：
2023
影响因子：
2
通讯作者：
XIE Mengqing & SHIBATA Shozo
中科院分区：
文献类型：
--
作者：
XIE Yusong;WANG Qianna;XIE Mengqing & SHIBATA Shozo
城市化加速导致自然栖息地萎缩，景观破碎化加剧，耕地和森林面积减少，生物多样性退化。在此背景下，考虑到生态廊道是连接生境斑块的重要线性结构，有助于增强城市生态韧性，保护生物多样性。越来越多的研究侧重于确定潜在的生态廊道，并评估这种廊道对相连生境斑块的影响的相对重要性。然而，在评价过程中，以往的研究忽略了廊道的线性结构，没有探讨不同廊道宽度下的内部特征差异。因此，本研究使用最小累积阻力模型(MCRM)来识别潜在的生态廊道。在此基础上，设计了不同宽度廊道相对重要性的建设可行性评价体系，并将其应用于中国西部快速扩张的成都市。结果表明，潜在生态廊道的内部特征在不同宽度下有较大差异。利用建设可行性评价体系，我们发现，在识别的潜在生态廊道中，75%以上是难以建设的。不同宽度下的施工顺序有明显差异，为成都潜在廊道的建设和宽度选择提供了参考。这项研究突出了宽度选择在走廊评估中的重要性。建设可行性评价为城市生态网络空间规划的识别、分析、建设顺序和建设实践提供了参考信息。
Accelerating urbanization has led to the shrinkage of natural habitats, intensification of landscape fragmentation, reduction of cropland and forest areas, and degradation of biodiversity. Against this background, considering ecological corridors are important linear structures connected to habitat patches, helping enhance urban ecological resilience and protect biodiversity. A growing number of studies focus on identifying potential ecological corridors and evaluating the relative importance of such corridors on the effects of connected habitat patches. However, in the evaluation process, previous studies ignored the linear structures of corridors, and did not explore the internal characteristics differences under different corridor widths. Accordingly, this study used the minimum cumulative resistance model (MCRM) to identify potential ecological corridors. After that, we designed the construction feasibility evaluation system for evaluating the relative importance of such corridors with different widths, and applied it to the rapidly expanding city of Chengdu in western China. The results show that internal characteristics of potential ecological corridors vary significantly under different widths. Using the construction feasibility evaluation system, we found that more than 75% of the identified potential ecological corridors are difficult to construct. The construction sequence has obvious differences under different widths, besides providing a reference for construction and selecting widths for potential corridors in Chengdu. This research highlights the importance of width selection in corridor evaluation. The construction feasibility evaluation provided reference information on identification, analysis, construction sequence, and construction practices for urban ecological network spatial planning.
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DOI：
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发表时间：
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期刊：
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影响因子：
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