| 吉林西部生态系统服务功能权衡/协同关系及生态服务簇时空演变 |
| 摘要点击 1278 全文点击 246 投稿时间：2024-11-05 修订日期：2025-01-21 |
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| 中文关键词 生态系统服务功能 权衡/协同关系 自组织神经映射网络 生态系统服务簇 吉林西部 |
| 英文关键词 ecosystem services trade-offs/synergies self-organizing map ecosystem service bundles western Jilin |
| DOI 10.13227/j.hjkx.202411043 |
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| 中文摘要 |
| 基于生态系统服务功能之间的权衡与协同关系是进行生态分区规划的关键. 以吉林西部白城市为例，应用InVEST模型和RWEQ模型评估分析2000~2020年生态系统服务功能时空演变，采用Spearman相关性分析和GWR地理加权回归识别生态系统服务功能的权衡/协同关系，基于地理探测器探究白城市生态系统服务功能的影响因素，利用SOM（自组织映射）提出基于生态系统服务簇的生态功能分区. 结果表明：①2000~2020年白城市防风固沙、水源涵养、碳储量和土壤保持这4种生态系统服务功能均有所提升，4种生态系统服务功能均表现为西高东低的格局. ②Spearman相关性分析得出，4种生态系统服务功能两两之间全部为正相关关系，生态系统服务功能关系以协同为主. GWR结果显示，网格尺度上生态系统空间协同面积显著高于权衡面积. ③地理探测器单因子探测结果显示，植被覆盖度和NDVI对4种生态系统服务功能的影响较大. 各因子交互探测解释力大于单因子探测的解释力. ④基于SOM识别出4种生态系统服务簇，分别为防风固沙簇、生态涵养簇、粮食生产簇和生态潜力簇，基于不同生态系统服务簇对白城市进行生态分区，并提出管控与管理建议. 上述研究结果可为生态脆弱地区环境保护、土地规划和政策制定等提供指导. |
| 英文摘要 |
| The trade-offs and synergies between ecosystem services are crucial for ecological zoning planning. This study used Baicheng City in western Jilin Province as a case to evaluate and analyze the spatial and temporal evolution of ecosystem services from 2000 to 2020 by employing the InVEST and RWEQ models. Spearman correlation analysis and geographically weighted regression (GWR) were utilized to explore the trade-offs and synergy relationships among the ecosystem services. A Geo-detector was used to examine the factors influencing Baicheng City's ecosystem services, and ecological function zoning was proposed based on ecosystem service bundles using a self-organizing map (SOM). The results indicated that: ① From 2000 to 2020, the four ecosystem service functions (windbreak and sand fixation, water conservation, carbon storage, and soil conservation) showed improvement, characterized by a pattern of high values in the west and lower values in the east. ② Spearman correlation analysis revealed a positive correlation among the four ecosystem services, indicating that their relationships were primarily synergistic. The GWR results demonstrated that the spatial areas of synergy among ecosystem services significantly exceeded those of trade-offs at the grid scale. ③ The single-factor detection results of the Geo-detector indicated that FVC and NDVI had a significant impact on the four ecosystem services. Additionally, the explanatory power of the interactions among factors was greater than that of the single factor. ④ Based on the SOM, four ecosystem service bundles were identified: windbreak and sand fixation, ecological conservation, grain production, and ecological potential bundles. We conducted ecological zoning for Baicheng City based on the distinct ecosystem service bundles and proposed management and control recommendations. These findings could provide a basis for environmental protection, land planning, and policy formulation for the development of ecologically fragile cities. |
