DOI: 10.1016/j.scitotenv.2019.136193
论文题名: Linking green infrastructure to urban heat and human health risk mitigation in Oslo, Norway
作者: Venter Z.S. ; Krog N.H. ; Barton D.N.
刊名: Science of the Total Environment
ISSN: 489697
出版年: 2020
卷: 709 语种: 英语
英文关键词: Ecosystem services
; Heat-associated illness
; Landsat
; Remote sensing
; Surface temperature
Scopus关键词: Ecosystems
; Forestry
; Global warming
; Health
; Health risks
; Land surface temperature
; Remote sensing
; Risk assessment
; Risk perception
; Surface measurement
; Surface properties
; Vegetation
; Ecosystem services
; Extreme temperatures
; Green infrastructure
; LANDSAT
; Surface temperatures
; Temperature increase
; Urban Heat Island Effects
; Vegetation greenness
; Atmospheric temperature
; air temperature
; canopy
; ecosystem service
; health risk
; heat island
; Landsat
; remote sensing
; surface temperature
; adaptation
; air temperature
; Article
; canopy
; climate change
; ecosystem
; environmental impact
; geography
; greenhouse effect
; health hazard
; heat sensitivity
; human
; Norway
; population research
; priority journal
; seasonal variation
; summer
; thermal exposure
; urban area
; vegetation
; Norway
; Oslo [Norway]
英文摘要: The predicted extreme temperatures of global warming are magnified in cities due to the urban heat island effect. Even if the target for average temperature increase in the Paris Climate Agreement is met, temperatures during the hottest month in a northern city like Oslo are predicted to rise by over 5 °C by 2050. We hypothesised that heat-related diagnoses for heat-sensitive citizens (75+) in Oslo are correlated to monthly air temperatures, and that green infrastructure such as tree canopy cover reduces extreme land surface temperatures and thus reduces health risk from heat exposure. Monthly air temperatures were significantly correlated to the number of skin-related diagnoses at the city level, but were unrelated to diagnoses under circulatory, nervous system, or general categories. Satellite-derived spatially-explicit measures revealed that on one of the hottest days during the summer of 2018, landscape units composed of paved, midrise or lowrise buildings gave off the most heat (39 °C), whereas units composed of complete tree canopy cover, or mixed (i.e. tree and grass) vegetation maintained temperatures of between 29 and 32 °C. Land surface temperatures were negatively correlated to tree canopy cover (R2 = 0.45) and vegetation greenness (R2 = 0.41). In a scenario in which each city tree was replaced by the most common non-tree cover in its neighbourhood, the area of Oslo exceeding a 30 °C health risk threshold during the summer would increase from 23 to 29%. Combining modelling results with population at risk at census tract level, we estimated that each tree in the city currently mitigates additional heat exposure of one heat-sensitive person by one day. Our results indicate that maintaining and restoring tree cover provides an ecosystem service of urban heat reduction. Our findings have particular relevance for health benefit estimation in urban ecosystem accounting and municipal policy decisions regarding ecosystem-based climate adaptation. © 2019 The Authors Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/158647
Appears in Collections: 气候变化与战略
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作者单位: Terrestrial Ecology Section, Norwegian Institute for Nature Research - NINA, Oslo, 0349, Norway; Division of Infection Control and Environmental Health, Section of Air Pollution and Noise, Norwegian Institute of Public Health – NIPH, PO Box 222, Skøyen, Oslo N-0213, Norway
Recommended Citation:
Venter Z.S.,Krog N.H.,Barton D.N.. Linking green infrastructure to urban heat and human health risk mitigation in Oslo, Norway[J]. Science of the Total Environment,2020-01-01,709