| 基于空间冲突调控的生态安全格局构建与优化:以西安都市圈为例 |
| 摘要点击 224 全文点击 4 投稿时间:2025-06-06 修订日期:2025-08-02 |
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| 中文关键词 空间冲突 冲突调控 生态安全格局(ESPs) 西安都市圈 国土空间生态修复 生态源地优化 |
| 英文关键词 space conflict conflict regulation ecological security patterns (ESPs) Xi'an metropolitan area land space ecological restoration planning ecological source optimization |
| DOI 10.13227/j.hjkx.202506064 |
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| 中文摘要 |
| 在都市圈空间结构失衡与冲突矛盾频发的背景下,构建兼顾生态价值与空间冲突适应性的生态安全格局,对于推动都市圈协调发展具有重要意义. 现有生态安全格局构建方法多聚焦于生态结构连通性与功能重要性评估,较少考虑空间冲突强度等现实制约因素,导致部分构建结果在实际落地过程中易与高冲突区域重叠,制约其在国土空间规划中的适用性与实施效果. 为此,以西安都市圈为例,引入空间冲突强度作为调控因子,优化生态源地识别过程,构建冲突调控型生态安全格局,并基于图论方法,从源地鲁棒性与网络连通性等维度对比评估其与主流结构型、功能型和整合型格局的性能差异. 结果表明,冲突调控型生态安全格局中识别源地228个,总面积为3 240.34 km2,识别廊道594条,总长度约为3 814.71 km;与结构型、功能型和整合型生态安全格局对比,冲突调控型格局在源地冲突鲁棒性(0.491 8)、网络闭合度(α=0.286 3)、线点速率(β=0.571 2)和成本比系数(c=0.991 9)等方面表现最佳. 研究表明空间冲突因子的引入提升了生态安全格局的现实适应性与实施可行性,可为多目标约束下都市圈生态空间优化提供理论支撑与方法路径. |
| 英文摘要 |
| Against the backdrop of spatial imbalance and frequent conflicts within metropolitan areas, constructing ecological security patterns (ESPs) that balance ecological value with spatial conflict adaptability is essential for promoting coordinated regional development. Existing ESPs construction methods primarily focus on ecological structural connectivity and functional importance assessments, while often overlooking real-world constraints such as spatial conflict intensity. This oversight leads to overlaps between identified ecological zones and high-conflict areas, limiting the applicability and effectiveness of such patterns in territorial spatial planning. To address this issue, this study takes the Xi'an metropolitan area as a case study, introducing spatial conflict intensity as a regulatory factor to optimize the identification of ecological sources and to construct conflict-regulated ESPs. Based on graph theory, the performance of this pattern is evaluated in comparison with mainstream structural, functional, and integrated ESPs across dimensions such as source robustness and network connectivity. The results showed that the conflict-regulated ESPs identified 228 ecological sources with a total area of 3 240.34 km2 and 594 ecological corridors with a total length of approximately 3,814.71 km. Compared to the other three ESPs types, the conflict-regulated pattern demonstrated superior performance in terms of source conflict robustness (0.491 8), network closure (α = 0.286 3), line-point ratio (β = 0.571 2), and cost ratio (c = 0.991 9). The study confirms that integrating spatial conflict factors into ESPs construction significantly enhances its practical adaptability and implementability, offering theoretical support and methodological pathways for optimizing ecological spatial patterns under multi-objective constraints in metropolitan regions. |