Chaohui Yin, Jinlong Yan, Qian Wen, Yang Zhang, Zihao An, Yueyang Wang
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引用次数: 0
Abstract
Urban landscape modifications are proposed as a potential solution to mitigate urban heat islands (UHIs). Previous research has explored the effects of planar and vertical urban landscape characteristics on land surface temperature (LST). However, these studies predominantly assume a yet-to-be-validated linearity in these effects, and overlook the multifaceted nature of these characteristics. As a result, the nuanced impact of urban landscapes and the accurate relative importance of planar versus vertical characteristics in shaping LST remain unclear. This study, focusing on Wuhan, China, investigates the nonlinear associations between planar and vertical urban landscapes and LST using random forest models. Our findings indicate that planar landscape characteristics contribute more significantly to LST variation than vertical characteristics (73% vs. 11%). Nevertheless, despite the seemingly small contribution of vertical characteristics, their impact is nearly equivalent to that of location characteristics (12%) and substantially surpasses that of socioeconomic factors (4%). Water area proportion, building density, greenspace proportion, and floor area ratio emerge as the most influential urban landscape characteristics. Moreover, our results reveal prevalent but distinct nonlinear relationships between urban landscapes and LST, identifying four patterns: L−/inverted-L- shape, stepwise-decline−/increase, inverted-U-shaped, and N-shaped patterns. Our research provides valuable insights into multidimensional urban planning strategies for effective UHI mitigation. Taking into account the revealed nonlinearity, we also propose planning strategies to address the complex challenges of regulating urban thermal environments.
期刊介绍：
Description
The journal has an applied focus: it actively promotes the importance of geographical research in real world settings
It is policy-relevant: it seeks both a readership and contributions from practitioners as well as academics
The substantive foundation is spatial analysis: the use of quantitative techniques to identify patterns and processes within geographic environments
The combination of these points, which are fully reflected in the naming of the journal, establishes a unique position in the marketplace.
RationaleA geographical perspective has always been crucial to the understanding of the social and physical organisation of the world around us. The techniques of spatial analysis provide a powerful means for the assembly and interpretation of evidence, and thus to address critical questions about issues such as crime and deprivation, immigration and demographic restructuring, retailing activity and employment change, resource management and environmental improvement. Many of these issues are equally important to academic research as they are to policy makers and Applied Spatial Analysis and Policy aims to close the gap between these two perspectives by providing a forum for discussion of applied research in a range of different contexts
Topical and interdisciplinaryIncreasingly government organisations, administrative agencies and private businesses are requiring research to support their ‘evidence-based’ strategies or policies. Geographical location is critical in much of this work which extends across a wide range of disciplines including demography, actuarial sciences, statistics, public sector planning, business planning, economics, epidemiology, sociology, social policy, health research, environmental management.
FocusApplied Spatial Analysis and Policy will draw on applied research from diverse problem domains, such as transport, policing, education, health, environment and leisure, in different international contexts. The journal will therefore provide insights into the variations in phenomena that exist across space, it will provide evidence for comparative policy analysis between domains and between locations, and stimulate ideas about the translation of spatial analysis methods and techniques across varied policy contexts. It is essential to know how to measure, monitor and understand spatial distributions, many of which have implications for those with responsibility to plan and enhance the society and the environment in which we all exist.
Readership and Editorial BoardAs a journal focused on applications of methods of spatial analysis, Applied Spatial Analysis and Policy will be of interest to scholars and students in a wide range of academic fields, to practitioners in government and administrative agencies and to consultants in private sector organisations. The Editorial Board reflects the international and multidisciplinary nature of the journal.
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