Urban Forestry & Urban Greening最新文献

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Design knowledge of urban agriculture providing ecosystem services. A systematic literature review 城市农业提供生态系统服务的设计知识。系统文献综述
IF 6 2区 环境科学与生态学
Urban Forestry & Urban Greening Pub Date : 2024-09-18 DOI: 10.1016/j.ufug.2024.128522
{"title":"Design knowledge of urban agriculture providing ecosystem services. A systematic literature review","authors":"","doi":"10.1016/j.ufug.2024.128522","DOIUrl":"10.1016/j.ufug.2024.128522","url":null,"abstract":"<div><p>Urban agriculture is acknowledged as a multifunctional integrated concept capable of delivering various ecosystem services. Design-related empirical research which is regarded as crucial for introducing and exploring the transformation of design knowledge and practice. Despite the growing body of scientific evidence, operational guidelines for this topic are relatively scarce. The primary step in promoting practical value involves reviewing existing design knowledge and transformation status in empirical research. In conjunction with the existing design research findings, research through design is the only way to acquire and test design knowledge. Spatial design is acknowledged as a way to translate theoretical concepts into practical applications. This systematic literature review offers a comprehensive qualitative analysis of urban agriculture, ecosystem services, and design research. Additionally, it utilizes bibliometric visualization tools to clarify existing research gaps and propose reliable solutions. This paper reveals the imbalance of design research in delivering ecosystem services in urban agriculture through the review of 70 selected empirical research articles. The results suggest that the research for design approach is the most prevalent and offers abundant design knowledge. However, the relatively infrequent use of the research through design method obstructs the transition from implicit to explicit design knowledge, resulting in a shortage of available operational guidelines. Consequently, the study proposes a framework for systematic design knowledge of urban agriculture to catalyze the transformation of design knowledge. Finally, we outline the framework's composition and logic and elucidate its role in addressing research gaps.</p></div>","PeriodicalId":49394,"journal":{"name":"Urban Forestry & Urban Greening","volume":null,"pages":null},"PeriodicalIF":6.0,"publicationDate":"2024-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1618866724003200/pdfft?md5=5849307dbdeb468139b8cfef5ce43cc6&pid=1-s2.0-S1618866724003200-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142274420","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Predicting the impact of integrated audio-visual environments on perceived restorative benefits across different park types: A field study based on seven parks in Hangzhou, China 预测不同类型公园的综合视听环境对可感知的恢复性益处的影响:基于中国杭州七个公园的实地研究
IF 6 2区 环境科学与生态学
Urban Forestry & Urban Greening Pub Date : 2024-09-18 DOI: 10.1016/j.ufug.2024.128517
{"title":"Predicting the impact of integrated audio-visual environments on perceived restorative benefits across different park types: A field study based on seven parks in Hangzhou, China","authors":"","doi":"10.1016/j.ufug.2024.128517","DOIUrl":"10.1016/j.ufug.2024.128517","url":null,"abstract":"<div><div>The human perception of environments is a complex mechanism, influenced not only by visual and auditory stimuli and their perceptual outcomes, but also by personal characteristics, site types, and other factors that affect people's restorative experiences. However, there is little research that treats it as a complete systemic phenomenon to reveal its integrated impact. We surveyed 1161 visitors in seven urban parks in Hangzhou, China, and collected information on audio-visual stimuli. Using structural equation modeling and multi-group analysis, we initially examined the comprehensive impact of acoustic factors, non-acoustic factors, and individual characteristic variables on perceived restorativeness. Subsequently, we studied the effects of different park types on the constructed multivariate comprehensive model. The results confirm that the presence of different types of sound sources within landscape features can impact the auditory affective quality dimension, which in turn affects visitors' perceived restorative experiences. In addition, the reported mediating pathways revealed that visual elements related to nature, by providing high-quality visual landscapes, enhance the pleasantness of soundscapes and yield greater restorative benefits in park environments. A new finding of the study was that, although the eventfulness of the soundscape negatively affects perceived restorativeness, the presence of high-quality visual landscapes in the environment can compensate for this deficiency. Further multi-group analysis results show that landscape features and visual perceptual quality indirectly influence perceived restorativeness through the auditory affective quality dimension, resulting in varied correlations across two types of park. Moreover, the pleasantness of soundscapes consistently has a significant effect on perceived restorativeness in both types of parks; however, in parks oriented towards activity, the eventfulness dimension of soundscapes does not significantly affect perceived restorativeness. Lastly, the influence of landscape features on perceived restorativeness, mediated by types of sound sources, is both direct and indirect, leading to diverse correlations across different park environments. These detailed findings and guidelines for audio-visual interaction design will aid in the planning and development of urban soundscapes.</div></div>","PeriodicalId":49394,"journal":{"name":"Urban Forestry & Urban Greening","volume":null,"pages":null},"PeriodicalIF":6.0,"publicationDate":"2024-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142275826","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Larger shrubs can maintain high infiltration and evapotranspiration rates in experimental biofiltration systems impacted by high sediment loads 在受高沉积物负荷影响的实验性生物过滤系统中,较大的灌木可以保持较高的渗透率和蒸散率
IF 6 2区 环境科学与生态学
Urban Forestry & Urban Greening Pub Date : 2024-09-17 DOI: 10.1016/j.ufug.2024.128520
{"title":"Larger shrubs can maintain high infiltration and evapotranspiration rates in experimental biofiltration systems impacted by high sediment loads","authors":"","doi":"10.1016/j.ufug.2024.128520","DOIUrl":"10.1016/j.ufug.2024.128520","url":null,"abstract":"<div><p>Biofiltration systems can fail over time due to clogging by fine sediments in stormwater. Infiltration can be maintained by plant roots, but species selection for biofiltration to date has largely been driven by pollutant removal efficiency and tolerance of conditions. As a result, plant species diversity in biofilters is typically low and dominated by sedges and rushes. Increased use of woody species could in theory improve plant diversity, aesthetic appeal, infiltration under high sediment loads and volumetric runoff reduction via higher evapotranspiration, without jeopardising nutrient pollutant removal. We tested whether shrubs could maintain infiltration and evapotranspiration in biofiltration profiles treated with a high sediment load, by comparing them with biofilters subjected to tap water without sediment. Following sediment application, biofilter columns planted with shrubs with high total biomass and total root length showed higher infiltration and evapotranspiration than those receiving tap water. These results indicate that shrub species are likely to alleviate clogging and increase stormwater retention in biofiltration systems. However, shrubs with a high root diameter also had low total biomass and total root length and showed 33–51 % lower infiltration rates after sediment application compared with those receiving tap water. As all shrubs had higher root diameters than typical sedges and rushes, we suggest that shrubs need a combination of higher total biomass, total root length and average root diameter to effectively maintain infiltration. While shrubs which maintained infiltration had traits associated with high nutrient removal, nutrient removal efficiency of shrubs needs to be quantified. Although root traits were related to maintenance of infiltration, above-ground stems likely created flow pathways through sediment which requires further investigation. Overall, selecting shrub species with high total biomass has the potential to maintain infiltration and increase evapotranspiration in biofiltration systems impacted by high sediment loads.</p></div>","PeriodicalId":49394,"journal":{"name":"Urban Forestry & Urban Greening","volume":null,"pages":null},"PeriodicalIF":6.0,"publicationDate":"2024-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1618866724003182/pdfft?md5=ef7e2b4d740d1812e1b2a5890e80c151&pid=1-s2.0-S1618866724003182-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142240855","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Microhabitat coverage influences avian species composition more than habitat heterogeneity in Hong Kong urban parks 微生境覆盖率对香港市区公园鸟类物种组成的影响大于生境异质性
IF 6 2区 环境科学与生态学
Urban Forestry & Urban Greening Pub Date : 2024-09-17 DOI: 10.1016/j.ufug.2024.128519
{"title":"Microhabitat coverage influences avian species composition more than habitat heterogeneity in Hong Kong urban parks","authors":"","doi":"10.1016/j.ufug.2024.128519","DOIUrl":"10.1016/j.ufug.2024.128519","url":null,"abstract":"<div><p>The relationship between habitat heterogeneity and diversity can underpin design of urban spaces for biodiversity conservation. The area-heterogeneity trade-off hypothesis predicts that higher habitat heterogeneity should result in an increase in species richness but only up to a point, beyond which habitat micro-fragmentation leads to decreases in species diversity. However, the strength of area-heterogeneity trade-offs at small spatial scales is not well studied. We studied the relationship between avian diversity and habitat heterogeneity in 16 small urban parks across Hong Kong during the winter dry season across 2016 and 2017 (ten repeated surveys in total for each park). Habitat heterogeneity was assessed by measuring the evenness of microhabitat coverage of seven habitats as well as vertical canopy cover. In total, 12,973 individuals of 73 bird species were recorded in the study. Habitat heterogeneity had a small but negligible effect on total bird species richness or abundance. However, water coverage was positively related to total, intermediately rare and habitat specialist bird species richness, and shrub coverage was positively related to total and common bird species richness. These results demonstrate that environmental heterogeneity had little effect on avian species richness in urban green spaces at small spatial scales. We also found that microhabitat coverage can affect avian diversity and abundance, and these effects are specific to certain groups of bird species. When managing urban green spaces for biodiversity conservation in densely urbanized cities, a decrease in management disturbance (e.g. tree topping or pesticide application) will likely benefit avian species. Together with the fact that some locally uncommon species were observed throughout the study, capacity exists for environmental enhancement of these small urban parks to contribute to local avian conservation.</p></div>","PeriodicalId":49394,"journal":{"name":"Urban Forestry & Urban Greening","volume":null,"pages":null},"PeriodicalIF":6.0,"publicationDate":"2024-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142274419","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The audio-visual incongruency asymmetry. Natural sounds in an urban visual setting are more relaxing than urban sounds in visual nature 视听不协调不对称。城市视觉环境中的自然声音比视觉自然中的城市声音更令人放松
IF 6 2区 环境科学与生态学
Urban Forestry & Urban Greening Pub Date : 2024-09-14 DOI: 10.1016/j.ufug.2024.128514
{"title":"The audio-visual incongruency asymmetry. Natural sounds in an urban visual setting are more relaxing than urban sounds in visual nature","authors":"","doi":"10.1016/j.ufug.2024.128514","DOIUrl":"10.1016/j.ufug.2024.128514","url":null,"abstract":"<div><p>Audio-visual interactions play a crucial role in environmental perception. Incongruent audio-visual environments, although prominent in the urban fabric, have been underlit in research. Contrasting exposures to visually natural environments combined with urban sounds, as well as the reverse scenario of visually urban environments with natural sounds, are explored for their restorative potential, both at the cognitive level by means of self-reported evaluations and instinctively through measurements of electrodermal activity. The test panel (n=67) results point at a strong audio-visual urban-nature incongruency asymmetry. Eventful natural sounds in an urban setting were perceived as more pleasant and relaxing than eventful urban sounds in a green environment. So augmenting an urban environment with natural sounds, even in absence of any visual natural features, could be an interesting soundscape intervention. In contrast, a visually natural environment paired with urban sounds is strongly negatively perceived. The findings further contribute to a growing body of literature emphasizing the importance of the sonic environment in designing restorative spaces.</p></div>","PeriodicalId":49394,"journal":{"name":"Urban Forestry & Urban Greening","volume":null,"pages":null},"PeriodicalIF":6.0,"publicationDate":"2024-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142240869","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Study on temperature regulation function of green spaces at community scale in high-density urban areas and planning design strategies 高密度城区社区尺度绿地的温度调节功能及规划设计策略研究
IF 6 2区 环境科学与生态学
Urban Forestry & Urban Greening Pub Date : 2024-09-13 DOI: 10.1016/j.ufug.2024.128511
{"title":"Study on temperature regulation function of green spaces at community scale in high-density urban areas and planning design strategies","authors":"","doi":"10.1016/j.ufug.2024.128511","DOIUrl":"10.1016/j.ufug.2024.128511","url":null,"abstract":"&lt;div&gt;&lt;p&gt;In recent years, the frequency of extreme high-temperature events has gradually increased. To better understand the impact of urban green space coverage's spatial pattern on land surface temperature (LST), this study selected three sample areas along the urban-rural gradient in Shanghai. Using LST inversion and resampling methods, LST data for different grid sizes were obtained for spring, summer, and winter in the 2010s, 2015s, and 2020 s. A boosting regression tree model was employed to determine the key indicators affecting LST and effective cooling thresholds. The impact of green quality, structure, and pattern at the community scale on LST was discussed, providing feasible suggestions for green space planning and design in different urban spaces. The study found significant differences in the spatial patterns of green areas and LST among the three sample regions. The quantity and integrity of green spaces in the Huangpu, Minhang, and Songjiang sample areas have progressively improved, with overall green coverages of 19 %, 38 %, and 43 %, respectively. As grid size increases, the relative influence of fractional vegetation coverage (FVC) on LST generally decreases, whereas the relative influence of green structure and patterns gradually increases. Taking the summer of the 2020 s as an example, the influence of FVC on the three study sample areas was 80.79, 83.36, and 87.18 at a 30 m grid size, which decreased to 48.87, 40.59, and 47.64 at a 120 m grid size. The green structure's impact rose from 13.09, 15.22, and 10.6–30.01, 51.82, and 38.5; the influence of green patterns increased from 6.12, 1.42, and 2.21–21.13, 7.6, and 13.86. Key indicators affecting LST include FVC (Fractional Vegetation Coverage), AREA (Green Patch Area), PD (Patch Density), COHESION (Patch Cohesion Index), and ED (Edge Density). High temperatures in summer are one of the ecological issues that need special attention in Shanghai's green space design. Setting the green space proportion to 35 % while avoiding fragmentation and low vegetation coverage can achieve effective cooling. This study's main advancement lies in utilizing machine learning algorithms to identify the principal green spatial pattern impact factors and key thresholds influencing LST at the community scale in Shanghai. The related results and proposed strategies provide a research framework and strong basis for special regulations in urban green space system planning concerning urban thermal environments. They offer references for urban renewal and new town planning to address climate change and urban high-temperature issues, such as clear requirements for optimal green space area at the community scale, community park spatial layout and quantity regulations, and urban park planning design suggestions. This study also highlights obstacles in the practical application of planning and design strategies, which can help avoid difficulties in implementing planning policies. It attempts to set goals f","PeriodicalId":49394,"journal":{"name":"Urban Forestry & Urban Greening","volume":null,"pages":null},"PeriodicalIF":6.0,"publicationDate":"2024-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142228642","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Quantifying the impact of urban trees on air quality in Geneva, Switzerland 量化城市树木对瑞士日内瓦空气质量的影响
IF 6 2区 环境科学与生态学
Urban Forestry & Urban Greening Pub Date : 2024-09-12 DOI: 10.1016/j.ufug.2024.128513
{"title":"Quantifying the impact of urban trees on air quality in Geneva, Switzerland","authors":"","doi":"10.1016/j.ufug.2024.128513","DOIUrl":"10.1016/j.ufug.2024.128513","url":null,"abstract":"<div><p>Atmospheric pollution threatens human health worldwide, with tropospheric ozone (O<sub>3</sub>) and particulate matter (PM) among the most harmful pollutants. Urban trees can reduce the concentration of air pollutants through dry deposition on their canopies and stomatal uptake. At the same time, urban trees can deteriorate air quality by emitting aerosol- and O<sub>3</sub> precursors in the form of biogenic volatile organic compounds (BVOCs). O<sub>3</sub> and PM removal, and BVOC emissions vary depending on the tree species. Therefore, the diversity and spatial distribution of urban trees significantly influence their impact on local air quality. This study employs a dual approach to assess and map the impact of urban trees on air quality in Geneva, Switzerland. Firstly, we use the i-Tree Eco model combined with a tree inventory (237,191 trees) to quantify BVOC emissions and PM<sub>10</sub> (PM &lt; 10 µm) and O<sub>3</sub> removal at the genus level. Secondly, we develop a species-level parameterization using 51 common urban tree species to estimate the same variables and ozone-forming potential (OFP). Results show that the tree density is heterogeneous in the study area, leading to neighborhoods with greater biomass and, therefore, stronger influence by trees on local air quality. According to i-Tree Eco, urban trees in Geneva emitted 50 t of BVOCs, while removing 14 t of PM<sub>10</sub> and 52 t of O<sub>3</sub> in 2014. With the species-level parametrization, we estimate that urban trees removed about 66 ± 55 t of PM<sub>10</sub> and 150 ± 96 t of O<sub>3</sub> in 2014. However, they could also emit about 130 ± 52 t of BVOCs annually, which, under favorable conditions, can form 1153 ± 519 t of O<sub>3</sub>. Depending on the method, urban trees removed between 4 and 19 % of the anthropogenic PM<sub>10</sub> emissions. The annual removal rates are comparable to findings in other European cities. The disparities between the two approaches are due to different parameterizations. This study could help urban planners to select adequate species for future planting programs in Geneva and more generally. It showed that the impact of urban trees on air quality is spatially heterogeneous but significant, and tightly linked to the species composition.</p></div>","PeriodicalId":49394,"journal":{"name":"Urban Forestry & Urban Greening","volume":null,"pages":null},"PeriodicalIF":6.0,"publicationDate":"2024-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S161886672400311X/pdfft?md5=cbfecf86a16d7717f34bfc57e2b3eaef&pid=1-s2.0-S161886672400311X-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142232210","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Seasonal dynamics of carbon, nitrogen, and phosphorus stoichiometric traits in an extensive green roof in Nanjing, China 中国南京大面积屋顶绿化中碳、氮、磷化学计量特性的季节动态变化
IF 6 2区 环境科学与生态学
Urban Forestry & Urban Greening Pub Date : 2024-09-10 DOI: 10.1016/j.ufug.2024.128515
{"title":"Seasonal dynamics of carbon, nitrogen, and phosphorus stoichiometric traits in an extensive green roof in Nanjing, China","authors":"","doi":"10.1016/j.ufug.2024.128515","DOIUrl":"10.1016/j.ufug.2024.128515","url":null,"abstract":"<div><p>Green roofs (GRs) are vital for shaping the material cycles of urban ecosystems as a form of distributed green infrastructure. However, current studies have predominantly focused on the material exchange between GRs and the urban environment, neglecting the internal distribution and equilibrium of constituent elements. By monitoring carbon (C), nitrogen (N), and phosphorus (P) in <em>Sedum lineare</em> Thunb and four substrates throughout the seasons, this study analyzes the ecological stoichiometric characteristics of an extensive GR in Nanjing, China. Intra-annual ratios of C:N (46.02, 13.38, 15.40), C:P (252.41, 57.85, 47.22), and N:P (5.75, 4.23, 3.84) were identified in the plant, substrate, and substrate microbial biomass, respectively. The intra-annual ratios of plant to substrate C, N, and P were roughly 9:1, 7:3, and 6:4, respectively. The use of different substrates resulted in significant variations in plant C, N, and P levels and their quantitative ratios, leading to distribution differences of these elements. Furthermore, substrate C, N, and P levels exhibit a generalized threshold effect on microbial biomass and plant C, N, and P concentrations. Notably, the substrate demonstrates an organic C sink potential of 7.11 g/kg/season, surpassing that of plants in unit mass. These findings contribute to understanding the distribution and dynamics of C, N, and P elements within extensive GRs.</p></div>","PeriodicalId":49394,"journal":{"name":"Urban Forestry & Urban Greening","volume":null,"pages":null},"PeriodicalIF":6.0,"publicationDate":"2024-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142168920","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Towards climate-responsible tree positioning: Detailed effects of trees on heat exposure in complex urban environments 实现对气候负责的树木定位:树木对复杂城市环境中热量暴露的详细影响
IF 6 2区 环境科学与生态学
Urban Forestry & Urban Greening Pub Date : 2024-09-07 DOI: 10.1016/j.ufug.2024.128500
{"title":"Towards climate-responsible tree positioning: Detailed effects of trees on heat exposure in complex urban environments","authors":"","doi":"10.1016/j.ufug.2024.128500","DOIUrl":"10.1016/j.ufug.2024.128500","url":null,"abstract":"<div><p>Increasing heat in urban environments has recently become one of the most dangerous climate hazards due to its adverse impacts on urban populations. Implementing street-level trees could be an effective strategy to mitigate pedestrian heat exposure, particularly due to their ability to block incoming solar radiation. In this study, the PALM model system was applied to simulate the effects of a tree canopy and its location on heat exposure, as quantified by the Universal Thermal Climate Index (UTCI), during a heat wave, using the example of Prague-Dejvice, Czech Republic. Our results show that trees reduce the UTCI under their canopy by 3.5 °C on average, with the greatest UTCI reduction in open spaces during mornings and afternoons. High spatio-temporal variations in the reduction of UTCI by a tree canopy were observed in the study domain, especially in street canyons and courtyards. The effectiveness of trees in mitigating heat exposure was found to be closely related to their individual location with respect to surrounding buildings, specifically: (i) the distance from the nearest building, (ii) the height of the nearest building, and (iii) the azimuthal angle of the vector from the nearest building towards the tree. Model simulations indicate that a particularly small reduction in UTCI (about 2.5 °C less than the mean) can be found under trees located in the shade of taller buildings that are within a few metres and between southwest and southeast of the trees. Our findings illustrate that tree positioning in cities should be undertaken carefully and thoughtfully so that the presence of trees effectively improves thermal comfort and urban quality of life.</p></div>","PeriodicalId":49394,"journal":{"name":"Urban Forestry & Urban Greening","volume":null,"pages":null},"PeriodicalIF":6.0,"publicationDate":"2024-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142163524","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Identity of a historic garden: The view of the international literature and committies on the role of the botanical elements 历史园林的特性:国际文献和委员会对植物元素作用的看法
IF 6 2区 环境科学与生态学
Urban Forestry & Urban Greening Pub Date : 2024-09-06 DOI: 10.1016/j.ufug.2024.128501
{"title":"Identity of a historic garden: The view of the international literature and committies on the role of the botanical elements","authors":"","doi":"10.1016/j.ufug.2024.128501","DOIUrl":"10.1016/j.ufug.2024.128501","url":null,"abstract":"<div><p>Historic gardens are conceptualized within various cultural and legal frameworks. This research aims to unravel the complexities of the historic garden identity through the lens of international regulations, national laws, and scientific literature to reveal differences in the perception of their botanical elements. We employed a combined analytical approach, using recommendations from related international institutions (i.e. UNESCO, ICCROM, and ICOMOS), national legislation, and a review of scientific literature. The analysis identified 25 documents related to the keywords: nature, landscape, site, and garden; however, only six mentioned gardens, and just one (The Florence Charter., 1982) explicitly addressed historic gardens. Only 7 % of UNESCO member countries (197) have specific provisions for historic gardens. Within them, a diverse range of definitions and standards has resulted in discrepancies in how historic gardens are recognized and conserved across different jurisdictions. Some countries have well-defined categories for garden heritage, while others offer limited or broad categorizations that may obscure garden identities. The findings underscore the necessity for more coherent international regulations that adequately reflect historic gardens' cultural and botanical significance. The study also highlighted the overlooked role of botanical elements, since only four countries included botanical value as an explicit criterion in their legal designations, suggesting that the botanical aspect is often considered within a larger ecological and geographical context. The imperative to preserve these living legacies within the broader context of cultural heritage also became apparent.</p></div>","PeriodicalId":49394,"journal":{"name":"Urban Forestry & Urban Greening","volume":null,"pages":null},"PeriodicalIF":6.0,"publicationDate":"2024-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142163525","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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