Spatial patterns and driving factors of surface urban heat island intensity: A comparative study for two farmland-dominated regions in China and the USA
Spatial patterns and driving factors of surface urban heat island intensity: A comparative study for two farmland-dominated regions in China and the USA
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城市地表热岛强度的空间格局及驱动因素：中美两个农田为主地区的比较研究
DOI：
10.1016/j.scs.2019.101518
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发表时间：
2019
影响因子：
11.7
通讯作者：
Zhou Weiqi
中科院分区：
文献类型：
--
作者：
Li Xiaoma;Zhou Weiqi
城市热岛效应造成了巨大的生态环境后果。为设计有效的缓解战略和适应措施，迫切需要更好地了解其空间格局和驱动因素。基于MODIS地表温度数据，比较了中国京津冀和美国伊利诺伊州-印第安纳州-俄亥俄州两个以农业为主导的地区地表热岛强度的空间格局及其驱动因素。结果表明：(1)IIO白天的SUHII明显强于BTH，而夜间的SUHII则相反。(2) IIO地区不同时间的SUHII呈正相关，而BTH地区冬季日间与夜间SUHII呈负相关。(3) IIO对夏季SUHII的预测效果优于BTH，而冬季SUHII的预测效果则相反。(4) IIO和BTH在模拟冬季白天SUHII时，多元线性回归模型的部分回归系数相反。研究结果表明，不同国家在这两个区域控制SUHII空间格局的地表能主导过程不同，并建议采取不同的适应措施和减缓策略。
Urban heat island (UHI) effect causes tremendous ecological and environmental consequences. A better understanding of its spatial pattern and driving factors is highly required for designing effective mitigation strategies and adaptation measures. This study compared spatial patterns of surface UHI intensity (SUHII) and their driving factors between two agriculture-dominated regions (i.e., Beijing–Tianjin–Hebei (BTH), China and Illinois–Indiana–Ohio (IIO), the USA) based on the MODIS land surface temperature dataset. The results showed that: (1) IIO had significantly stronger daytime SUHII than BTH, while the nighttime SUHII showed an opposite phenomenon. (2) SUHIIs of different time were positively correlated in IIO, but the winter daytime SUHII was negatively correlated with the nighttime SUHII in BTH. (3) Spatial variations of summer SUHII were better predicted in IIO than that in BTH, but the opposite result was found for winter SUHII. (4) Some regression coefficients of the multiple linear regression models when modeling winter daytime SUHII were opposite between IIO and BTH. Findings of this study indicated different dominant surface energy processes in controlling the spatial pattern of SUHII in these two regions of different countries and recommended varied adaptation measures and mitigation strategies.