Abstract
Air temperature increases in cities related to urban development have been recognised as having severely negative consequences for human health and have received worldwide attention. The urban water and green spaces can help improve cooling and humidifying conditions. However, the synergistic control of both water and neighbouring green spaces on air temperature (T) and humidity (RH) requires the identification of their interactive factors, which has rarely been undertaken. In this study, we investigated the spatiotemporal variability of air T and RH effects of urban lake wetlands and four structural composition of green spaces neighbourhoods within a 500 m buffer in the summer in Wuhan, China using a land use regression (LUR) approach. The results indicated that models for air T and RH were successfully developed, with adjusted R2 of 0.414–0.968 and 0.574–0.984 (P < 0.05), respectively. Correlation analysis revealed that the water area (Area_W), green space area (Area_G), and distance from the wetland (DL) were excellent predictors of air T and RH, whereas wind speed (Wind_S) was the crucial impact variable on RH (P < 0.05). Additionally, urban lake wetlands can significantly strengthen the cooling and humidifying capacity of green spaces within 200 m of the surrounding area. Large lake wetlands considerably enhanced T and RH variances across green spaces with different structural compositions, and the air T and RH in the tree-shrub-herb (TSH) green space were the most significant with 0.4–0.9 ℃ lower T and 1.3–2.1% RH higher than that in herb (H) in the summer.
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Acknowledgements
This work was supported by the National Science Foundation of China [31870700, 31500576], High-end Foreign Experts Introduction Plan of China [G2022157005L], the Fundamental Research Funds for the Central Universities of China [2662022YLYJ005], and the Financial and Technological Planning Project of Xinjiang Production and Construction Corps, China [2023CB008-24].
Funding
National Natural Science Foundation of China, 31870700, Chunyang Zhu, 31500576, Chunyang Zhu, High-end Foreign Experts Introduction Plan of China, G2022157005L, Chunyang Zhu, Fundamental Research Funds for the Central Universities, 2662022YLYJ005, Chunyang Zhu, Financial and Technological Planning Project of Xinjiang Production and Construction Corps, China, 2023CB008-24, Chunyang Zhu.
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Liu, H., Wang, J., Hao, D. et al. Assessing the effects of structural composition of plant communities neighbouring urban lake wetlands on air temperature and relative humidity. Landscape Ecol Eng 20, 1–17 (2024). https://doi.org/10.1007/s11355-023-00573-7
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DOI: https://doi.org/10.1007/s11355-023-00573-7