- 规划与建设
- 文章编号：1009-6000(2025)12-0069-07
- 中图分类号：F205 文献标识码：B
- Doi：10.3969/j.issn.1009-6000.2025.12.010
- 项目基金：内蒙古自治区高等学校科学技术研究项目（NJZY21456）。
- 作者简介：于旻卉（1998—），内蒙古农业大学林学院，硕士研究生，研究方向：园林植物与人居环境；
张鸿翎（1968—），通信作者，内蒙古农业大学林学院，副教授，研究方向：园林植物与人居环境。
- 呼和浩特市城市绿地水生态系统水源涵养服务供需评价及归因分析
- Supply-Demand Evaluation and Attribution Analysis of Water Conservation Services Provided by Urban Green-Space Water Ecosystems in Hohhot City
- 于旻卉 张鸿翎
- YU Minhui ZHANG Hongling
- 摘要：
城市绿地水生态系统服务的供需评价及城市绿地优化配置在缓解城市水资源短缺、协调人—水—城矛盾方面具有重要理论价值和实践意义。研究首先通过整合绿地、水域及城市路网数据，界定研究区域并量化水源涵养服务的供需水平，利用 ArcGIS 与InVEST 模型分析其供需数量、空间分布及聚类特征。随后，采用地理探测器模型探讨多种影响因素对供需平衡的解释力。结果表明：（1）研究区绿地水源涵养服务的年均总供给量为 1.38×107m3，其中网格单元供给最高值为 1.30×106m3，平均值为1.10×106m3；（2）总需求量为 1.2×107m3，最高值为 2.5×104m3，平均值为 3.3×103m3，存在显著供需不匹配问题；（3）温度是影响供需平衡的主导因子。在此基础上，从城市规划视角提出绿地结构优化方案：新增附属绿地 5.54km2、防护绿地 46.17km2、区域绿地 68.37km2，旨在提升城市生态韧性，推动城市绿色可持续发展。 - 关键词：
城市绿地；水生态系统服务；水源涵养；供需评价；空间分布；绿地优化 - Abstract: Evaluating the supply and demand of water conservation services provided by urban green-space water ecosystems and optimizing the spatial configuration of green spaces are of significant theoretical and practical importance for alleviating urban water shortages and reconciling the relationships among people, water, and cities. This study first delineates the study area by integrating data on green-spaces, water bodies, and the urban road network, and quantitatively assesses the supply and demand levels of water conservation services. Using ArcGIS and the InVEST model, it analyzes the magnitude, spatial distribution, and clustering characteristics of service supply and demand. The geographical detector model is then employed to examine the explanatory power of multiple factors affecting supply-demand balance. The results show that: (1) the average annual total supply of water conservation services from green spaces in the study area is 1.38×107 m3, with the maximum grid-cell supply reaching 1.30×106 m3 and an average of 1.10×106 m3; (2) the total demand is 1.20×107 m3, with a maximum grid-cell demand of 2.5×104 m3 and an average of 3.3×103 m3, indicating a pronounced supply-demand mismatch; (3) temperature is the dominant factor influencing this balance. From an urban-planning perspective, the study proposes optimizing the green-space structure by adding 5.54 km2 of auxiliary green space, 46.17 km2 of protective green space, and 68.37 km2 of regional green-space, with the aim of enhancing urban ecological resilience and promoting green, sustainable urban development.
- Key words: urban green-space; water ecosystem services; water conservation; supply-demand evaluation; spatial distribution; green-space optimization