基于SolVES模型的长株潭城市群绿心地区生态系统服务社会价值评估

    Evaluating the Social Value of Ecosystem Services for the Green Heart Area of the Changsha-Zhuzhou-Xiangtan Urban Agglomeration Using the SolVES Model

    • 摘要: 深入分析生态系统服务社会价值及不同利益相关者对其的感知, 有助于全面地理解生态系统服务的多元价值, 为制定更加有效的区域发展规划与管理策略提供科学依据。以长株潭城市群绿心地区(简称“长株潭绿心”)为研究对象, 利用SolVES模型评估生态系统服务社会价值, 揭示其空间分布特征及影响因素, 阐明不同利益相关者(居民和游客)视角下生态系统服务社会价值感知差异。结果表明: (1)长株潭绿心生态系统服务社会价值以美学价值、生物多样性、健康疗养、休闲娱乐和文化价值为主, 在空间上呈现不均匀分布特征, 核密度分析显示, 社会价值空间分布已呈现廊道趋势, 但生态节点连接不足, 廊道功能有待完善。(2)距A级景区距离、高程和坡度显著影响社会价值评估, 距A级景区距离对模型影响较大且可提高评估准确性, 高程60~80 m和坡度4°~10°范围是社会价值高度集中区。(3)不同利益相关群体对生态系统服务社会价值感知存在显著差异, 其中居民对绿心生态系统服务社会价值感知更强, 更偏爱村落和居住地周边空间; 而游客则倾向于旅游景区。(4)在社会价值内部权衡与协同上, 从居民视角来看, 生物多样性、文化价值与其他价值关联度低; 从游客视角来看, 休闲娱乐和美学价值高度相关, 部分价值间呈现权衡关系。基于以上结果, 本研究提出了结合社会价值考量的生态廊道建设方案及跨区域协调机制, 旨在为国内外相似"城市群绿心"区域的规划管理及相关政策制定提供重要的科学依据与参考。

       

      Abstract: Thoroughly understanding the social value of ecosystem services and the perceptions of different stakeholders can help comprehensively understand the diverse values of ecosystem services, providing a scientific basis for developing more effective regional development plans and management strategies. This study investigated the social value of ecosystem services for the green heart area (GHA) in the Changsha-Zhuzhou-Xiangtan urban agglomeration using the Social Values for Ecosystem Services (SolVES) model, uncovering their spatial distribution as well as the influencing factors. The differences in the social value of ecosystem services (including spatial pattern and driving factors) between different stakeholders (i. e., residents and tourists) were also explored. The results showed that: (1) GHA had strong social values for aesthetics, biodiversity, health, recreation, and culture. These social values were unevenly distributed and spatially displayed a corridor shape, but with insufficient ecological nodes. (2) The social values were significantly correlated with the distance to the A-level scenic areas, elevation, and slope. The high social values were concentrated in areas with elevations between 60 and 80 m and with slopes between 4° and 10°. (3) Residents and tourists showed distinct perceptions of the social values. Residents perceived stronger social values of ecosystem services than tourists, and they preferred the village and residential areas, while tourists favored the scenic areas. (4) The perceived social values of biodiversity and culture by the residents showed weak correlation with those of other ecosystem services. The perceived social values of recreation and aesthetics by the tourists were highly correlated, and there were tradeoffs between the social values perceived by tourists. Based on these findings, we have proposed an ecological corridor construction plan and suggested cross-regional coordination development to enhance the social values of ecosystem services in GHA. Findings of this study could provide valuable insights for landscape planning, ecosystem management, and policy-making for regions similar to GHA.

       

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