GEOGRAPHICAL RESEARCH

The impact of cooling effect of micro green space in a polycentric city: Taking Hangzhou as an example

LYU Yuefeng, XIAO Yue

GEOGRAPHICAL RESEARCH, 2026, 45(4): 1155-1171. DOI: 10.11821/dlyj020250406

研究对象		对象面积（hm²）	温度变化情况（△℃）			标准差
研究对象		对象面积（hm²）	最小值	最大值	平均值	标准差
城市副中心全域情况		36,144.34	-2.079	1.432	-0.001	0.130
临平副中心	样本组	47.35	-0.382	0.341	-0.052	0.092
临平副中心	对照组	263.22	-0.723	0.760	-0.006	0.128
下沙副中心	样本组	95.56	-0.336	0.402	-0.046	0.086
下沙副中心	对照组	1,049.66	-1.230	0.838	-0.005	0.139
江南副中心	样本组	63.90	-0.602	0.459	-0.053	0.111
江南副中心	对照组	1,634.76	-1.125	0.915	-0.002	0.118

Tab. 3 Analysis of temperature variations between green space sample group and non-green space control group

Other figure/table from this article

Tab. 1 Sorting out some characteristics of micro and small green spaces
Fig. 1 Overview of the study area (Hangzhou)
Fig. 2 The step-by-step framework
Fig. 3 Example of green patch samples
Fig. 4 Spatial distribution of green patch samples
Fig. 5 Land surface temperature change curve in the cooling process of green patches
Tab. 2 Selection of influencing factors for cooling effect
Fig. 6 Retrieval results of Hangzhou land surface temperature
Fig. 7 The control test on the cooling effect of micro green spaces
Fig. 8 Cooling characteristics of micro green spaces
Tab. 4 Correlation analysis of cooling effect and impact factors of micro green spaces
Fig. 9 Relative contribution of each influencing factor to the cooling effect of greenspace in the sub-centers
Fig. 10 Marginal effect of core factors on the cooling effect of green spaces
Fig. 11 Land use change process of Hangzhou's sub-centers (1990-2020)