The cooling efficiency of variable greenery coverage ratios in different urban densities: A study in a subtropical climate

Ouyang, Wanlu; Morakinyo, Tobi Eniolu; Ren, Chao; Ng, Edward

doi:10.1016/j.buildenv.2020.106772

Cited by 101 publications

(43 citation statements)

References 56 publications

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“…When a reservoir is located parallel to the wind direction, temperatures drop by an average of 1.6–2.1 °C. The arrangement of ventilation corridors is also important for trees in dense building areas with low greenery available [ 189 ]. Ouyang et al [ 190 ] studied the impact of the urban canyon green cover factor.…”

Section: Resultsmentioning

confidence: 99%

“…The results obtained by Syafii et al [188] show that reservoirs oriented parallel to the main winds better maintain low radiation temperatures than other spatial configurations. When a reservoir is located parallel to the wind direction, temperatures drop by an average of 1.6-2.1 • C. The arrangement of ventilation corridors is also important for trees in dense building areas with low greenery available [189]. Ouyang et al [190] studied the impact of the urban canyon green cover factor.…”

Section: Greenery Along the Streetsmentioning

confidence: 99%

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Statistical Review of Quality Parameters of Blue-Green Infrastructure Elements Important in Mitigating the Effect of the Urban Heat Island in the Temperate Climate (C) Zone

Antoszewski

Świerk

Krzyżaniak

2020

IJERPH

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Urban Heat Island (UHI) effect relates to the occurrence of a positive heat balance, compared to suburban and extra-urban areas in a high degree of urbanized cities. It is necessary to develop effective UHI prevention and mitigation strategies, one of which is blue-green infrastructure (BGI). Most research work comparing impact of BGI parameters on UHI mitigation is based on data measured in different climate zones. This makes the implication of nature-based solutions difficult in cities with different climate zones due to the differences in the vegetation time of plants. The aim of our research was to select the most statistically significant quality parameters of BGI elements in terms of preventing UHI. The normative four-step data delimitation procedure in systematic reviews related to UHI literature was used, and temperate climate (C) zone was determined as the UHI crisis area. As a result of delimitation, 173 publications qualified for literature review were obtained (488 rejected). We prepared a detailed literature data analysis and the CVA model—a canonical variation of Fisher’s linear discriminant analysis (LDA). Our research has indicated that the BGI object parameters are essential for UHI mitigation, which are the following: area of water objects and green areas, street greenery leaf size (LAI), green roofs hydration degree, and green walls location. Data obtained from the statistical analysis will be used to create the dynamic BGI modeling algorithm, which is the main goal of the series of articles in the future.

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Section: Resultsmentioning

confidence: 99%

Section: Greenery Along the Streetsmentioning

confidence: 99%

Statistical Review of Quality Parameters of Blue-Green Infrastructure Elements Important in Mitigating the Effect of the Urban Heat Island in the Temperate Climate (C) Zone

Antoszewski

Świerk

Krzyżaniak

2020

IJERPH

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“…Green spaces, especially forest, can decrease air pollutants, provide pleasant visual and acoustic experiences, and create a comfortable microclimate. These critical ecological functions encourage outdoor physical activities, further enhancing mental and social health (Nowak et al, 2014;Ouyang et al, 2020;Power et al, 2015). Overall, it is widely recognized that green spaces, whether in urban or rural areas, have a significant positive effect on human health.…”

Section: Accumulating Evidence: the Health Benefits Of Green Spacesmentioning

confidence: 99%

Green spaces, especially forest, linked to lower SARS-CoV-2 infection rates: A one-year nationwide study

Jiang

Yang

Chen

et al. 2021

Preprint

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This study examined the associations between green spaces and one–years' worth of SARS–CoV–2 infection rates across all 3,108 counties in the contiguous United States after controlling for multiple categories of confounding factors. We found green spaces at the county level have a significant negative association with infection rates. Among all types of green spaces, forest yields the most consistent and strongest negative association. Sensitivity analyses confirmed the negative association of forest across five urbanicity levels, and the strength of the association increases as disease incidence increases across five time periods. Although forest located in moderately urbanized counties yields the strongest association, the negative pattern of significant associations holds across all five urbanicity levels. A population–weighted analysis revealed that proximity to forest within a moderate walking distance (≤ 1.0–1.4 km) may provide the greatest protection against the risk of infection.

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“…The magnitude of cooling contributed by urban greenery usually depends on their coverage and distribution (sometimes also called greenery abundance) (Ouyang et al 2020;Shah et al, 2021). In summer and hot regions, landscape greenery affects microclimate through temperature, wind and humidity modification.…”

Section: Introductionmentioning

confidence: 99%

Developing climate-led landscapes and greenery in urban design: a case study at Ipoh, Malaysia

Teoh

Shinozaki

Saito

et al. 2021

Journal of Asian Architecture and Building Engineering

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Designing urban landscapes for climate change adaptation and mitigation is highly promoted for contemporary urban development. However, the lack of climate-based design knowledge and techniques in existing urban landscape practice has challenged the implementation. This paper, therefore, introduced climate-led as a practical approach for urban landscape design to overcome such a dilemma. This approach was results-oriented with integrated use of microclimate, thermal comfort, and GIS modelling and simulation tools. Through the computer-based scenarios building and comparison, this paper has analyzed and figured out efficient landscape designs for microclimate and thermal comfort improvement in Ipoh, Malaysia. In this case, shading most determined the level of cooling and pedestrian thermal comfort, leading the effective street tree planting became an essential measure in the tropical climate-led plan. Besides, this study found that wind did not positively influence thermal comfort due to site characteristic at a particular time, in contrast with other hot regions. In conclusion, developing climate-led landscape and greenery in urban design is a functional initiative for urban cooling and sustainable urban development. Furthermore, the application of modelling and simulation methods in urban landscape design can reduce the possibility of failure in practice, thereby promising urban efficiency in response to climate change.

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The cooling efficiency of variable greenery coverage ratios in different urban densities: A study in a subtropical climate

Cited by 101 publications

References 56 publications

Statistical Review of Quality Parameters of Blue-Green Infrastructure Elements Important in Mitigating the Effect of the Urban Heat Island in the Temperate Climate (C) Zone

Statistical Review of Quality Parameters of Blue-Green Infrastructure Elements Important in Mitigating the Effect of the Urban Heat Island in the Temperate Climate (C) Zone

Green spaces, especially forest, linked to lower SARS-CoV-2 infection rates: A one-year nationwide study

Developing climate-led landscapes and greenery in urban design: a case study at Ipoh, Malaysia

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