Climate change-induced heat reduces urban green space use: Insights from mobile phone location big data

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

Urban Forestry & Urban Greening Pub Date : 2025-03-12 DOI:10.1016/j.ufug.2025.128771

Mao Wakayama , Kota Mameno , Tatsuya Owake , Tetsuya Aikoh , Yasushi Shoji

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引用次数: 0

Abstract

Global climate change poses a major challenge in human–nature interactions. Particularly, increasing extreme weather events and rising temperatures in summer are barriers to the access and use of urban green spaces (UGSs) for urban residents. However, there is no unified view on whether the number of users changes during extreme heat events. This study examined the impact of increasing temperatures and humidity in summer (Wet-Bulb Globe Temperature: WBGT) on the number of green space users by applying propensity score matching (PSM) and linear regression to smartphone location data. The study focused on 20 major UGSs in Sapporo, Japan, where in August 2023, Sapporo experienced temperatures 2.7 °C higher than the previous decade's average, aligning with the projected 2050 average according to forecasts from the Intergovernmental Panel on Climate Change. We observed a discernible increase up to a WBGT of 28 °C, with a significant user-decline trend beyond this threshold. PSM estimates indicated a decrease of 1781 UGS users. Based on individual space analyses, UGSs with water play and indoor facilities maintained high user numbers even at elevated heat indices, suggesting the effectiveness of those facilities in climate change adaptation.

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气候变化引起的热量减少了城市绿地的使用：来自手机定位大数据的见解

全球气候变化对人类与自然的互动构成了重大挑战。特别是，夏季极端天气事件的增加和气温的上升阻碍了城市居民进入和使用城市绿地（UGSs）。然而，在极端高温事件期间，用户数量是否会发生变化，目前尚无统一的看法。本研究通过倾向得分匹配（PSM）和线性回归分析智能手机位置数据，研究了夏季温度和湿度的增加（全球湿球温度：WBGT）对绿地用户数量的影响。这项研究的重点是日本札幌的20个主要uggs，在2023年8月，札幌的气温比前十年的平均气温高出2.7摄氏度，与政府间气候变化专门委员会预测的2050年的平均气温一致。我们观察到WBGT在28°C时有明显的增加，超过这个阈值后，用户数量明显下降。PSM估计UGS用户减少了1781人。基于个体空间分析，即使在高温指数升高的情况下，具有水上游乐设施和室内设施的UGSs仍保持较高的用户数量，表明这些设施在适应气候变化方面的有效性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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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.