Critical review on the cooling effect of urban blue-green space: A threshold-size perspective

Yu, Zhaowu; Yang, Gaoyuan; Zuo, Shixiang; Jørgensen, Gertrud; Koga, Motoya; Vejre, Henrik

doi:10.1016/j.ufug.2020.126630

Cited by 306 publications

(83 citation statements)

References 128 publications

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“…Additionally, green spaces provide a wide range of ecosystem services (ESs), in particular, regulating services (e.g. reduction of heat) (Yu et al 2019, 2020a, 2020b, Yang et al 2020, and supporting services (e.g. maintenance of biodiversity) ( Combining these concepts with the keyword clustering analysis, we could finally determine the specific domains in G-H research.…”

Section: Main Knowledge Domains: Keyword-clusteringmentioning

confidence: 99%

Links between green space and public health: a bibliometric review of global research trends and future prospects from 1901 to 2019

Zhang

Bing

et al. 2020

Environ. Res. Lett.

Self Cite

118

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Considerable specific cross-sectional and review studies have linked exposure to green spaces to improving public health, but there is no bibliometric review attempting to systemically and retrospectively analyze these existing articles. Here we aim to uncover global research status, trends, and future prospects in green spaces and health (G-H) research then propose a framework for the underlying mechanisms and pathways that link green space to public health. We obtained 18 961 G-H research publications from the core Web of Science collection from 1901 to 2019, analyzing the characteristics of publication outputs, key scientific disciplines, and differences in performance between countries and institutions. Besides, content analysis was conducted to analyze the keywords, including keyword co-occurrence analysis and keyword clustering analysis. We found: (1) a steady quantitative increase in publications, active journals, and involved countries and institutions since the 1990s; (2) a significant increase and changes in G-H related interdisciplinary categories, with environment-related disciplines becoming the mainstream; (3) research focus and trends that were identified based on the analysis of high-frequency co-occurring keywords; (4) three main knowledge domains, namely, green spaces and physical health, mental health, and ecosystem health, that were identified and visualized based on keyword clustering analysis; (5) a framework of underlying mechanisms and pathways linking green space to public health that is proposed based on visualization of the three main knowledge domains. We suggest that the main challenge of G-H research is to further clarify in-depth the underlying mechanisms and pathways from multiple perspectives, including multiple nations, disciplines, and study designs. The lack of co-occurring keywords and clustering information related to social well-being suggests that research related to 'social health' is lacking. Based on a clear understanding of the quantity, quality, and characteristics of green space for public health, a health-based environmental plan should be proposed in the future.

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Section: Main Knowledge Domains: Keyword-clusteringmentioning

confidence: 99%

Links between green space and public health: a bibliometric review of global research trends and future prospects from 1901 to 2019

Zhang

Bing

et al. 2020

Environ. Res. Lett.

Self Cite

118

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“…The environmental natural and artificial factors around the park (wind, topography, urban configuration, aspect ratio, etc.) have a significant role in park cooling effect [94,96]. Because the prevailing wind direction was shifty during data collection, it was not considered in this study, but other important environmental factors such as urban structure and topography were discussed.…”

Section: Influential Factors On Park Cooling Effectmentioning

confidence: 99%

Urban heat resilience at the time of global warming: evaluating the impact of the urban parks on outdoor thermal comfort

et al. 2020

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Background In densely populated urban centers, increased air temperature due to urban heat island (UHI) effect can undermine the thermal comfort and health of citizens. Research has shown that large urban parks can mitigate the effect of UHIs and improve thermal comfort, especially in the warmer months of the year when temperature changes are more noticeable. This study investigated the cooling effect intensity (CEI) of the Retiro Park in the center of Madrid at three different distances from its southern edge and the impact of this cooling effect on thermal comfort from physiological and psychological perspectives. This investigation was performed by measuring microclimate data and conducting a survey simultaneously during the summer days. Results The results showed that the CEI of the park varies with distance from its edge. Because of this effect, air temperature within the 130 m and 280 m distance of the park was, respectively, 1.6 °C and 0.9 °C lower than the temperature at the 520 m distance (the nearest heat island). After examining the effect of the park in terms of physiological equivalent temperature (PET), it was found that the PET at the 130 m and 280 m distance of the park was 9.3% and 5.4% less than the PET in the heat island domain. More than 81% of the respondents (in all three areas) had a mental image of the park as the place where they would experience the highest level of outdoor thermal comfort, and this rate was higher in the areas closer to the park. The analysis of citizens’ responses about perceived thermal comfort (PTC) showed that citizens in areas with higher CEI had perceived a higher degree of thermal comfort from the psychological perspective. Conclusion This study demonstrates the significant role of large urban parks located in the core of the populated cities in providing thermal comfort for citizens from both physiological and psychological perspectives. Additionally, the results of this study demonstrated that among the environmental (natural and artificial) factors around the park (topography, urban structure, etc.), the aspect ratio has the greatest impact on thermal comfort.

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“…Contemporary, blue-green space has a lower temperature value according to the overlay analysis of land use type ( Figure 2) and land temperature (Figure 13a). As previous studies concluded, planning for blue and green space is a promising approach to mitigate the urban heat island [64,78]. Despite these observations, the role of blue-green space in managing urban flooding disaster at the regional scale has received less attention.…”

Section: Multidisciplinary Perspective In Green-space Structure Planningmentioning

confidence: 99%

Conceptual Planning of Urban–Rural Green Space from a Multidimensional Perspective: A Case Study of Zhengzhou, China

Liu

Tian

et al. 2020

Sustainability

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The structure and function of green-space system is an eternal subject of landscape architecture, especially due to limited land and a need for the coordinated development of PLEs (production, living, and ecological spaces). To make planning more scientific, this paper explored green-space structure planning via multidimensional perspectives and methods using a case study of Zhengzhou. The paper applies theories (from landscape architecture and landscape ecology) and technologies (like remote sensing, GIS—geographic information system, graph theory, and aerography) from different disciplines to analyze current green-space structure and relevant physical factors to identify and exemplify different green-space planning strategies. Overall, our analysis reveals that multiple green-space structures should be considered together and that planners and designers should have multidisciplinary knowledge. For specific strategies, the analysis finds (i) that green complexes enhance various public spaces and guide comprehensive development of urban spaces; (ii) that green ecological corridors play a critical role in regional ecological stability through maintaining good connectivity and high node degree (Dg) and betweenness centrality index (BC) green spaces; (iii) that greenway networks can integrate all landscape resources to provide more secured spaces for animals and beautiful public spaces for humans; (iv) that blue-green ecological networks can help rainwater and urban flooding disaster management; and (v) that green ventilation corridors provide air cleaning and urban cooling benefits, which can help ensure healthy and comfortable urban–rural environments. In our view, this integrated framework for planning and design green-space structure helps make the process scientific and relevant for guiding future regional green-space structure.

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Critical review on the cooling effect of urban blue-green space: A threshold-size perspective

Cited by 306 publications

References 128 publications

Links between green space and public health: a bibliometric review of global research trends and future prospects from 1901 to 2019

Links between green space and public health: a bibliometric review of global research trends and future prospects from 1901 to 2019

Urban heat resilience at the time of global warming: evaluating the impact of the urban parks on outdoor thermal comfort

Conceptual Planning of Urban–Rural Green Space from a Multidimensional Perspective: A Case Study of Zhengzhou, China

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