Urban tree design approaches for mitigating daytime urban heat island effects in a high-density urban environment

Tan, Zheng; Lau, Kevin Ka-Lun; Ng, Edward

doi:10.1016/j.enbuild.2015.06.031

Cited by 377 publications

(181 citation statements)

References 53 publications

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“…Tan et al 2016). The results of our methodology are certainly not contradictory to these studies, but cannot be compared one-to-one.…”

Section: Sea Water 100%mentioning

confidence: 84%

“…In this context, nature-based solutions as urban greenery and water features have been proposed as an effective measure to mitigate the UHI and improve the urban microclimate (Demuzere et al 2014, Tan et al 2016. Observational studies revealed that green areas are usually cooler than their surrounding built-up areas, with instantaneous air temperature differences of 1°C up to 7°C (Bowler et al 2010, Jamei et al 2016).…”

Section: Introductionmentioning

confidence: 99%

“…The second type of models are physically based mesoscale atmospheric models or local climate models (e.g. Wouters et al 2013, Tan et al 2016. These type of models calculate the UHI for all types of locations in a physically consistent way, but are computationally expensive and struggle to deliver very high horizontal resolution (<100 m) results for large areas.…”

Section: Introductionmentioning

confidence: 99%

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A new method for fine-scale assessments of the average urban Heat island over large areas and the effectiveness of nature-based solutions

Lauwaet¹,

Nijs²,

Liekens³

et al. 2018

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People living in cities experience extra heat stress due to the so-called Urban Heat Island (UHI) effect. To gain an insight into the spatial variability of the UHI for the Netherlands, a detailed map (10 m horizontal resolution) has been calculated that shows the summeraveraged daily maximal UHI situation. The map is based on a relationship between the UHI, mean wind speed at 10 m height and the number of people living within a distance of 10 km, derived from simulations of over 100 European cities with the extensively validated urban climate model UrbClim. The cooling effect of green and blue infrastructure is also taken into account in the map, based on these simulation results. The presented map will help local authorities in defining target areas for climate adaptation measures and estimate the impact of nature-based solutions. ‡ § ‡ ‡ ‡ ‡ ‡ § ‡

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“…Tan et al 2016). The results of our methodology are certainly not contradictory to these studies, but cannot be compared one-to-one.…”

Section: Sea Water 100%mentioning

confidence: 84%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

A new method for fine-scale assessments of the average urban Heat island over large areas and the effectiveness of nature-based solutions

Lauwaet¹,

Nijs²,

Liekens³

et al. 2018

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“…Urban forests can generate ecosystem services that are essential for urban residents' wellbeing, such as removal of air pollutants [1], reduction of urban floods [2], alleviation of urban heat islands [3], and provision of recreational opportunities [4]. Because of these important benefits, cities worldwide are investing resources to maintain existing urban forests and create new ones.…”

Section: Introductionmentioning

confidence: 99%

Performances of Urban Tree Species under Disturbances in 120 Cities in China

Yan

Yang

2018

Forests

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Selecting tree species for urban greening requires a good understanding of the performance of the species under different types of disturbances. However, information on performances of many species is still not available today. In this study, we used an extensive data set gathered through a systematic literature review to analyze the impacts of five major types of disturbances on urban tree species in China. Our results showed that there were distinctive spatial patterns of occurrences of these disturbances on urban trees. Urban trees in north China were mainly disturbed by low temperature, snow, and wind. In central China, low and high temperatures were major disturbances. Urban trees in south China suffered greatly from low temperature and wind. Pests and disease were reported more frequently in east China, where most cities are located. Of the 1010 taxa of trees reported over the 120 cities in the study-which included 723 taxa identified to the species level, 264 identified to the sub-species level, and 23 identified to the genus level-the impacts of these disturbances varied widely. We recommend that cities reduce or avoid the use of tree species that perform poorly under these disturbances.

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“…There are many studies that affirm the benefits of ecological services of UGS's to residents [6][7][8][9][10][11]. Some important ecological services of UGS's are the promotion of the well-being of people [12][13][14][15][16][17][18][19], recreational activities [20,21], the mitigation of high temperatures [6,[22][23][24], the abatement of air pollution [25], the sequestration of CO 2 and release of more O 2 [5,26], noise reduction [22], the provision of wildlife habitats [27][28][29][30], the prevention of flood and soil erosion [31], the improvement of city amenities [32,33], and an increase in property (land and house) values [34][35][36][37]. However, many of these benefits are determined by the different levels of species group, canopy cover, size, and shape of UGS's [38].…”

Section: Introductionmentioning

confidence: 99%

An Assessment of the Knowledge and Demand of Young Residents regarding the Ecological Services of Urban Green Spaces in Phnom Penh, Cambodia

et al. 2016

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Abstract:The fast and steady economic growth and social changes in recent years in Cambodia have brought rapid expansion and restructuring to its cities. These phenomena have brought numerous challenges including threats to urban green spaces (UGS's). This study addresses problems of UGS's by investigating the knowledge and perceptions of young residents of Phnom Penh (YRPPs) toward UGS's in relation to the following: (1) basic knowledge of YRPPs on ecological services (KES) of UGS's; (2) perceptions of YRPPs on the current state of UGS's (PUGS's) in Phnom Penh; (3) demand of YRPPs for UGS's in the city (DUGS); and (4) associations between KES, PUGS's, social profiles (SoPs), and DUGS. A questionnaire was designed to solicit knowledge from 554 respondents randomly selected from the study area. The findings revealed that 83.1% of total respondents strongly recognized ecological services of UGS's. Four subgroups of ecological services, namely microclimate (89.7%), environmental quality and functions (83.8%), recreational and public health services (88.5%), and economic benefits (70.4%) were all rated highly. Because the current state of UGS's was very poor (68.4%), demand for UGS's was high (94.43%). Public toilets (84.7%) and rubbish bins (75.6%) were both rated the poorest. The PUGS's were significantly associated with KES (r = 0.307, F (3, 543) = 18.83, p < 0.001). This study offers a deep understanding about knowledge and demand of YRPPs for UGS's.

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Urban tree design approaches for mitigating daytime urban heat island effects in a high-density urban environment

Cited by 377 publications

References 53 publications

A new method for fine-scale assessments of the average urban Heat island over large areas and the effectiveness of nature-based solutions

A new method for fine-scale assessments of the average urban Heat island over large areas and the effectiveness of nature-based solutions

Performances of Urban Tree Species under Disturbances in 120 Cities in China

An Assessment of the Knowledge and Demand of Young Residents regarding the Ecological Services of Urban Green Spaces in Phnom Penh, Cambodia

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