Affiliation:
1. School of Landscape Architecture, Central South University of Forestry and Technology, Changsha 410004, China
2. School of Art & Design, Nanning University, Nanning 530200, China
3. School of Architecture and Art, Central South University, Changsha 410083, China
Abstract
The high-density development of urban centers has worsened outdoor thermal comfort in many cities. In this study, ENVI-met was used to simulate thermal comfort, and the universal thermal climate index (UTCI) and eight urban morphological indicators were calculated at 348 sampling points in the urban center. The correlation results are shown as follows: (1) Thermal comfort is significantly and positively correlated with impervious surface, green area ratio, and sky openness, showing a strong negative correlation with building density, floor area ratio, and shadow hours. (2) The UTCI value decreases by 0.998 °C for every 1 h increase in shadow hours, increases by 0.746 °C for every 10% increase in sky view factor, decreases by 0.462 °C when the building density increases by 10%, and decreases by 0.596 °C for every 10% increase in the impervious area ratio. (3) The sampling points with better thermal comfort have similar spatial characteristics such as higher building density, higher volume ratio, smaller green area ratio, longer shadow hours, and smaller sky openness. (4) In the planning and design of urban centers, increasing shade can improve the shadow hours in the environment. Specifically, large open sites should be avoided.
Funder
the National Natural Science Foundation of China
the Scientific Innovation Fund for Postgraduates of Central South University of Forestry and Technology
the Outstanding Youth Project of Hunan Provincial Department of Education
Subject
Management, Monitoring, Policy and Law,Renewable Energy, Sustainability and the Environment,Geography, Planning and Development,Building and Construction
Reference46 articles.
1. Impacts and responses to the 1995 heat wave: A call to action;Changnon;Bull. Am. Meteorol. Soc.,1996
2. Energy effects of heat-island reduction strategies in Toronto, Canada;Akbari;Energy,2003
3. Influence of street canyon shape on outdoor temperature and thermal comfort in summer;Deng;J. Zhejiang Univ.,2018
4. China’s population development, changes and current situation, reference to data of the seventh population census;Qiao;Popul. Dev.,2021
5. Research on the optimization strategies of urban green space pattern in response to heat island effects;Xue;Urban. Archit.,2018
Cited by
1 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献