The win-win interaction between integrated blue and green space on urban cooling

Zhou, Wen; Wei, Cao; Wu, Tao; Zhang, Ting

doi:10.1016/j.scitotenv.2022.160712

Cited by 54 publications

(20 citation statements)

References 66 publications

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“…For landscaping, we have observed that rivers/lakes hold the highest importance among all the landscaping elements. This aligns with the outcomes of prior research [56], indicating that green spaces in proximity to water bodies possess greater value than other types of green areas.…”

Section: Results Of Objective Weightssupporting

confidence: 87%

An Evaluation Model of Urban Green Space Based on Residents’ Physical Activity

Dong,

Feng,

Yue

et al. 2024

Sustainability

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Urban green spaces (UGSs) possess a status in improving public health; thus, it is crucial to emphasize the evaluation of UGSs in terms of residents’ physical activity (PA). This study utilizes the semantic segmentation method and Geographic Information System tools to quantify the key values of UGSs, including aesthetic and attractions, natural world experience, nature conservation, encouraging physical activity, cultural value, and social value, which are set as the evaluation indexes to investigate their impacts on residents’ PA based on the six UGSs in Changsha city, Hunan Province, China. The PA-oriented UGS evaluation model is realized through the index optimal combination weights obtained by the Improved Combination Weighting Method of Game Theory, combining the subjective and objective weights from the Uncertainty Analytic Hierarchy Process method and Entropy Weight Method, respectively. By collecting and analyzing the exercise data of residents, we can accurately assess the level of residents’ PA and frequency within various UGSs. The proposed model herein has a positive significance for evaluating the value of public green space in residents’ PA in Changsha city and provides a reference for the construction of an urban green space evaluation model from multiple perspectives in the future.

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Section: Results Of Objective Weightssupporting

confidence: 87%

An Evaluation Model of Urban Green Space Based on Residents’ Physical Activity

Dong,

Feng,

Yue

et al. 2024

Sustainability

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“…Urban parks and forests with sizes of greater than 10 hectares appear to provide the largest cooling benefit, reducing temperatures by 1-2°C for up to 350m beyond the park boundary, depending on vegetation cover and tree shade (Aram et al, 2019). Estimates of cooling intensity and distance from urban blue spaces vary widely, depending on the area, shape, depth, movement, and surrounding features of the water body (reviewed in Zhou et al, 2023), but can reach reductions up to 5°C for a 270 m wide section of river in Japan (Murakawa et al, 1991). This cooling benefit is even higher when blue spaces are integrated into urban green spaces (e.g., Figure 2).…”

Section: Urban Green and Blue Spacesmentioning

confidence: 99%

“…This cooling benefit is even higher when blue spaces are integrated into urban green spaces (e.g., Figure 2). For example, a 30m green buffer on either side of an urban river can reduce land surface temperatures by 3.1 -3.6°C compared to the blue space, alone, and 2.7 -3.7°C compared to the green space, alone (Zhou et al, 2023). Thus, large urban parks with water bodies not only provide diverse habitat for wildlife, but can also reduce heat stress for both wildlife and humans alike.…”

Section: Urban Green and Blue Spacesmentioning

confidence: 99%

Promoting urban ecological resilience through the lens of avian biodiversity

McCloy,

Andringa,

Maness

et al. 2024

Front. Ecol. Evol.

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The significance of urban landscapes in safeguarding biodiversity is often disregarded, even though a considerable amount of conservation focus is directed toward biodiversity hotspots where urban land conversion is happening at the fastest pace. Maintaining biodiversity in urban areas not only benefits the environment, but along with social, economic, and technological factors can increase the stability of urban systems to disturbance, a concept known as “urban resilience”. In this synthesis paper, we explore the ecological dimension of urban resilience and specifically focus on avian biodiversity because birds are easy to observe, relatively abundant, and can serve as an indicator of the overall health of urban environments. We first examine the concept of ecological resilience and discuss the role of environmental stressors associated with urbanization in the ongoing avian biodiversity crisis. We then provide an overview of characteristics of the urban environment that may promote ecological resilience in birds, and associations between social and economic factors and urban ecological resilience. Finally, we provide recommendations on future research regarding strategies to improve urban ecological resilience and thus, urban resilience as a whole, at the intersections of urban ecology, ecosystem ecology, environmental justice, and urban planning. Since 68% of the world’s population is projected to live in urban areas by 2050, it is imperative that scientists, urban planners, civil engineers, architects, and others consider urban ecological resilience as a dimension of both environmental health and the resilience of cities to future natural and anthropogenic stressors.

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“…According to the United Nations Environment Programme 18 , sustainable urban cooling initiatives are necessary, and nature-based blue-green spaces (BGS) are among the most powerful tools for decreasing cooling requirements and improving outdoor thermal comfort. For example, BGS can reduce the surrounding temperature through shading, evapotranspiration, and air convection, thereby creating a cold island (CI) effect 19,20 . The focus of urban BGS research has been on cooling mechanisms 21,22 , cooling effects 23,24 , economic bene ts 25 , accessibility, and equity 26,27 .…”

Section: Introductionmentioning

confidence: 99%

“…Furthermore, studies have indicated that increasing the connectivity of green spaces can effectively improve the urban thermal environment 36 . Zhou et al 20 found that the integration of blue and green spaces enhanced the potential for reciprocal cooling. For example, Zupancic et al 37 found that close-spaced and well-connected small green spaces can provide more cooling than isolated green spaces in neighboring urban areas.…”

Section: Introductionmentioning

confidence: 99%

Construction of an urban cold island network under the perspective of local climate zones

Yang,

Cai,

Zhang

et al. 2024

Preprint

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Urban blue–green spaces(BGS) exhibit a remarkable cold island (CI) effect, and research on heat mitigation measures based on CIs has attracted considerable attention. However, few studies have been conducted on mitigating urban overheating by connecting isolated CI patches to form CI networks. Therefore, this study aimed to explore the framework and specific processes for building an urban CI network in Hangzhou, China. The CI network construction framework consisted of “source identification-resistance surface construction-corridor construction”. Based on morphological spatial pattern analysis, local climate zone (LCZ) theory, connectivity index, and circuit theory, the CI sources and cooling corridors were identified and classified, and the pinch and barrier points in the network were determined. The results indicated that the CI network in Hangzhou comprised 69 CI sources, 134 cooling corridors, 36 pinch points, and 89 barrier points. Based on these results, we recommended that the LCZs in the CI network that are dominated by water (LCZG) and dense trees (LCZA) be protected and areas that are dominated by bare rock or pavement be improved. This study and methodology can provide new inspiration for future planning of urban BGS and sustainable urban cooling.

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The win-win interaction between integrated blue and green space on urban cooling

Cited by 54 publications

References 66 publications

An Evaluation Model of Urban Green Space Based on Residents’ Physical Activity

An Evaluation Model of Urban Green Space Based on Residents’ Physical Activity

Promoting urban ecological resilience through the lens of avian biodiversity

Construction of an urban cold island network under the perspective of local climate zones

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