The ideal dispersion range of park cooling island in summer time

IF 6 2区环境科学与生态学 Q1 ENVIRONMENTAL STUDIES

Urban Forestry & Urban Greening Pub Date : 2025-01-16 DOI:10.1016/j.ufug.2025.128681

Youpei Hu, Qiang Sun, Tong Wu, Yanyi Zhu

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Abstract

The park cooling island (PCI) spreads to the downwind direction of the green park under the dominant wind, bringing a cooling effect to the downwind urban area. This phenomenon offers potential to alleviate urban heat during hot summers. In this study, Nanjing is selected as the case city to investigate the PCI phenomenon and its appropriate dispersion range. First, we proposed a new hypothesis on the primary factor influencing PCI dispersion, based on our prior research and an extensive review. Subsequently, PCI dispersion data were obtained through a rigorous process encompassing the calibration of the research tool, the modeling of park samples, and the simulation of PCI dispersion by ENVI-met software. The hypothesis is evaluated and proven through statistical analysis of the PCI dispersion data and verification work: there is a strong correlation between park depth on the windward side and PCI dispersion distance, which can be quantitatively defined as a set of formulas. The formulas set allow for a simple and efficient delimitation of the PCI's ideal dispersion range, which may be useful for urban planners and designers.

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来源期刊

Urban Forestry & Urban Greening FORESTRY-

CiteScore

11.70

自引率

12.50%

发文量

289

审稿时长

70 days

期刊介绍： Urban Forestry and Urban Greening is a refereed, international journal aimed at presenting high-quality research with urban and peri-urban woody and non-woody vegetation and its use, planning, design, establishment and management as its main topics. Urban Forestry and Urban Greening concentrates on all tree-dominated (as joint together in the urban forest) as well as other green resources in and around urban areas, such as woodlands, public and private urban parks and gardens, urban nature areas, street tree and square plantations, botanical gardens and cemeteries. The journal welcomes basic and applied research papers, as well as review papers and short communications. Contributions should focus on one or more of the following aspects: -Form and functions of urban forests and other vegetation, including aspects of urban ecology. -Policy-making, planning and design related to urban forests and other vegetation. -Selection and establishment of tree resources and other vegetation for urban environments. -Management of urban forests and other vegetation. Original contributions of a high academic standard are invited from a wide range of disciplines and fields, including forestry, biology, horticulture, arboriculture, landscape ecology, pathology, soil science, hydrology, landscape architecture, landscape planning, urban planning and design, economics, sociology, environmental psychology, public health, and education.