海口市滨水绿地空间对城市热缓解的响应

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ZHANG Kaiyue，XU Xiansheng*，XIAO Yubing

基金项目：国家自然科学基金“耗散理论视野下街道空间活力形成机理实证研究—以海南湿热型旅游城市为例”（编号：52268011）

Abstract

Keywords

Climatewarming has led to thecontinuous intensificationof variousdelayedadverse impacts.Adapting to climate change and optimizing the spatial layout of green space systemsare key methods formitigating theurban heat island effect.Using Landsat8 remote sensing imagery to derive surface temperatureasaquantitative data source，this study evaluated the cooling effect of waterfront green spaces in Haikou City and quantitatively analyzed the relationship between green space design elements and cooling benefits. Results indicate that the ratio of green space edge area is negatively correlated with cooling benefits，whereas other spatial elements show positive correlations.The critical distance forseawater interferenceaffecting Haikou's cooling benefits isapproximately 2300m Finally，comprehensive optimization strategies for mitigating urban thermal environments areproposed，includingestablishinga'point-line-surface'network layoutforgreen spaces.

Green space; Heat island effect; Microclimate; Cooling effect

文章亮点

1）引入 AIC 和RMSE统计指标验证拟合模型优越性，提取、测算并分析城市滨水绿地空间降温效益，为城市空间降温研究提供方法；2）重点研究滨水绿地内部空间要素对城市热缓解的响应，提出绿地综合优化方法，为相关研究、城市高温环境应对策略及治理实践提供参考。（剩余14705字）