Landscape and Urban Planning最新文献_第3页

Assessing recreationists’ preferences of the landscape and species using crowdsourced images and machine learning

IF 7.9 1区环境科学与生态学 Q1 ECOLOGY

Landscape and Urban Planning

Pub Date : 2025-02-09 DOI: 10.1016/j.landurbplan.2025.105315

Abdesslam Chai-allah , Johannes Hermes , Anne De La Foye , Zander S. Venter , Frédéric Joly , Gilles Brunschwig , Sandro Bimonte , Nathan Fox

Crowdsourced data are now well-established for assessing cultural ecosystem services (CES). In rural areas, understanding which land covers people prefer to recreate in, and how these land covers provide different CES, is necessary to support sustainable use. In this study, we aim to assess recreationists’ revealed preferences of landscape aesthetics and species observation as two CES, considering multiple land cover types in a rural area in France. This assessment was carried out using georeferenced images from two crowdsourced sources (Flickr and Wikiloc) and by analyzing their content using a machine-learning algorithm. We further developed a framework to classify images based on their content into CES-related images (those depicting landscapes or species) and non-CES-related images. Finally, we assessed how images depicting landscape aesthetics and species observation are distributed across the land covers visited by recreationists, and which species groups are the most photographed. Our results showed the dominance of images of open landscape views over close-up species images, and that grasslands are the primary providers of open views. In addition, we found that forests also provide open landscape views, suggesting that forests with gaps in canopy cover and viewpoints can be as important as grasslands in providing aesthetic views, especially in hilly landscapes. For species, the category “plants and flowers“ was the most photographed, followed by invertebrates and birds on Flickr, and domestic livestock on Wikiloc. This study provides insights into the importance of using multiple crowdsourced sources in CES assessment, providing critical insights for both landscape managers and conservationists.

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引用次数: 0

Assessing accessibility to peri-urban parks considering supply, demand, and traffic conditions

IF 7.9 1区环境科学与生态学 Q1 ECOLOGY

Landscape and Urban Planning

Pub Date : 2025-02-07 DOI: 10.1016/j.landurbplan.2025.105313

Linchuan Yang , Yi Lu , Mengqiu Cao , Ruoyu Wang , Jie Chen

With the acceleration of urbanization, ensuring equitable access (or accessibility) to peri-urban parks for residents has become a key issue in landscape and urban planning. Traditional studies on peri-urban park accessibility often lack a comprehensive evaluation of the supply and demand for peri-urban parks and traffic conditions. Taking Chengdu as an example, this study develops an improved two-step floating catchment area method that integrates traffic conditions. It dynamically assesses accessibility to peri-urban parks at different times during weekends and spatial inequalities, as well as explores the relationship between these inequalities and traffic conditions. The results indicate that under a 60-minute time threshold, there is significant two-tier differentiation in accessibility to peri-urban parks in Chengdu, with significant differences between different time points. Particularly during periods of traffic congestion, the issue of accessibility inequality becomes more prominent. This phenomenon highlights a strong correlation between congestion levels on routes to parks and inequality in park accessibility. This study provides a novel perspective and methodology for dynamically evaluating and optimizing accessibility to peri-urban parks, providing empirical evidence for urban planners in the planning of peri-urban parks and the design of transportation systems. This study emphasizes the need for comprehensive and proactive measures in the planning process to alleviate the adverse effects of traffic congestion on accessibility to peri-urban parks.

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引用次数: 0

Accessible, and culturally responsive: Why we need to examine diverse plant uses and values in green infrastructure

IF 7.9 1区环境科学与生态学 Q1 ECOLOGY

Landscape and Urban Planning

Pub Date : 2025-02-06 DOI: 10.1016/j.landurbplan.2025.105317

Lucero Radonic , Valeria Galindo , Karen Hanshaw , Flor Sandoval

As green infrastructure (GI) proliferates as an adaptation strategy to living with increasing temperatures in urban areas, these initiatives may impact how people differentially experience the local climate and health benefits of urban greening. Scholars have studied the uneven distribution of urban greenery, but less attention has been paid to diverse plant uses and values by different sectors of the population and how those align (or not) with institutional plant preferences enshrined in GI policies. To address this gap, this article offers an in-depth case study of publicly-funded residential raingardens in a semi-arid city of the U.S. Southwest by drawing on an environmental justice framework. Through a mixed-methods approach we identify key criteria for residential plant selection among two groups from different economic and cultural backgrounds, and examine the desired benefits driving those preferences. More saliently, we found that plant preferences among low-income Hispanic residents tended to be at odds with institutional expectations of appropriate vegetation for GI installations in the context of increased heat and reduced water resources. Instead, they favored often-thirsty fruit bearing plants that provide cultural ecosystem services but are consistently excluded from the recommended plant lists used by program managers and expert practitioners. As practitioners and policy-makers seek to develop GI in historically underserved neighborhoods to reduce vulnerabilities to extreme heat, it is paramount to understand what people care to plant, what desired benefits they seek from those plants, and how they relate to plants in GI installations. Thus, this article argues that systematic attention to diversity in people-plant interactions is critical for implementing GI programs that are not only spatially, administratively, and financially accessible to underserved communities, but also culturally responsive to community identified needs. Moreover, by systematically documenting how different groups of people interact, use, and value vegetation this research adds to the movement towards integrating a biocultural approach to urban greening and to GI planning and implementation more specifically.

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引用次数: 0

Does urban sprawl lessen green space exposure? Evidence from Chinese cities

IF 7.9 1区环境科学与生态学 Q1 ECOLOGY

Landscape and Urban Planning

Pub Date : 2025-02-06 DOI: 10.1016/j.landurbplan.2025.105319

Yang Chen , Daniele La Rosa , Wenze Yue

Maintaining universal exposure to green space is one of the crucial tasks in building livable cities. However, the prevalence of urban expansion in the past few decades worldwide has resulted in uneven exposure to green space as a spatial concomitant of disordered urban development. Previous literature has mainly focused on examining the impacts of biophysical conditions, socio-economic development, and institutional capacity in shaping green space exposure, with little attention given to the role of urban sprawl. To address the gap, we developed a conceptual framework to explore the relationships between urban sprawl and green space exposure. We then used Amap real-time accessibility model, landscape metrics, and regression models to examine whether urban sprawl can lessen green space exposure in Chinese cities. Statistically, it is clear that southern and southeastern cities, as well as those at higher administrative levels, have greater green space exposure, while eastern and smaller cities tend to exhibit urban sprawl. Furthermore, we partially confirmed that urban sprawl can lessen green space exposure, especially in dispersed and fragmented Chinese cities. This result can be attributed to planning strategies that prioritize city cores over suburban areas. However, this is not the case for complex urban forms. We speculate that this finding is linked to the universal characteristics of unsystematic growth and edge development in Chinese cities. This work may provide insights for planners and decision-makers in coordinating green space planning with urban development trajectories.

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引用次数: 0

Planting contexts affect urban tree species classification using airborne hyperspectral and LiDAR imagery

IF 7.9 1区环境科学与生态学 Q1 ECOLOGY

Landscape and Urban Planning

Pub Date : 2025-02-04 DOI: 10.1016/j.landurbplan.2025.105316

Dengkai Chi , Jingli Yan , Kang Yu , Felix Morsdorf , Ben Somers

Different urban planting contexts, such as streets and parks, can lead to significant intraspecific biochemical and structural variations in trees. These variations present challenges for remote sensing-based tree species classification and effective urban forest management. However, few studies have explored how planting contexts influence the accuracy of remote sensing-based tree species identification in urban environments. This study introduced a planting context-specific modelling approach (i.e., models trained for street trees and park trees separately) for classifying seven dominant broadleaved tree species in the Brussels Capital Region, Belgium using airborne hyperspectral and leaf-on LiDAR data. This approach was compared to a traditional general modelling approach. Linear discriminant analysis with principal component analysis was employed to classify tree species at the individual tree level using different feature sets. Our results showed that a planting context-specific modelling approach with combined hyperspectral and LiDAR features achieved an overall accuracy (OA) of 84.2%. It improved the OA of LiDAR-based classifications by 7.6 and 8.9 percentage points for street trees and park trees respectively and of hyperspectral-based street tree species classification by 4.2 percentage points. The decreased discriminatory power of features in general models can be partly attributed to their sensitivity to planting context. We concluded that a planting context-specific modeling approach can enhance urban tree species classification, ultimately supporting improved urban forest management.

{"title":"Planting contexts affect urban tree species classification using airborne hyperspectral and LiDAR imagery","authors":"Dengkai Chi , Jingli Yan , Kang Yu , Felix Morsdorf , Ben Somers","doi":"10.1016/j.landurbplan.2025.105316","DOIUrl":"10.1016/j.landurbplan.2025.105316","url":null,"abstract":"<div><div>Different urban planting contexts, such as streets and parks, can lead to significant intraspecific biochemical and structural variations in trees. These variations present challenges for remote sensing-based tree species classification and effective urban forest management. However, few studies have explored how planting contexts influence the accuracy of remote sensing-based tree species identification in urban environments. This study introduced a planting context-specific modelling approach (i.e., models trained for street trees and park trees separately) for classifying seven dominant broadleaved tree species in the Brussels Capital Region, Belgium using airborne hyperspectral and leaf-on LiDAR data. This approach was compared to a traditional general modelling approach. Linear discriminant analysis with principal component analysis was employed to classify tree species at the individual tree level using different feature sets. Our results showed that a planting context-specific modelling approach with combined hyperspectral and LiDAR features achieved an overall accuracy (OA) of 84.2%. It improved the OA of LiDAR-based classifications by 7.6 and 8.9 percentage points for street trees and park trees respectively and of hyperspectral-based street tree species classification by 4.2 percentage points. The decreased discriminatory power of features in general models can be partly attributed to their sensitivity to planting context. We concluded that a planting context-specific modeling approach can enhance urban tree species classification, ultimately supporting improved urban forest management.</div></div>","PeriodicalId":54744,"journal":{"name":"Landscape and Urban Planning","volume":"257 ","pages":"Article 105316"},"PeriodicalIF":7.9,"publicationDate":"2025-02-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143104709","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Land use and land cover conflict risk assessment model: Social and spatial impact of suburbanisation

IF 7.9 1区环境科学与生态学 Q1 ECOLOGY

Landscape and Urban Planning

Pub Date : 2025-02-01 DOI: 10.1016/j.landurbplan.2025.105302

Katarzyna Cegielska, Renata Różycka-Czas, Julia Gorzelany, Barbara Olczak

Today’s cities grow at the interface of urbanised and open areas. Their impact zones depend on their size and role in the settlement structure. Unplanned urban growth often leads to land-use patterns that conflict with sustainable development principles. This can spark local land use and land cover (LULC) conflicts.

The study aims to build an original model for assessing the risk of LULC conflicts. The model is founded on identifying the Risk Source (spatial and social determinants of conflicts), Risk Receptor (component indicators developed by the authors) and Risk Effect (level of conflict risk) in public perception. The integrated spatial and social approach is a novel concept for investigating LULC conflicts. The goal was achieved through spatial analyses combined with surveys among residents of municipalities around Kraków and among administration officers, directors, and chiefs of departments in these municipalities. The spatial analyses of land cover employed geoprocessing algorithms and GIS tools. The periurban zone of Kraków was investigated using an original methodology. The results demonstrate that suburbanisation contributes to LULC conflicts, with agricultural areas being the most susceptible to the problem. The conclusions are based on a model analysis and investigation of human-landscape interactions. The proposed LULC conflict risk assessment model combines spatial characteristics and their public perception. With this specific approach, we address a research gap that is the shortage of research integrating spatial and social approaches to LULC conflicts in periurban areas.

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引用次数: 0

Honeybee presence restructures pollination networks more than landscape context by reducing foraging breadths of wild bees

IF 7.9 1区环境科学与生态学 Q1 ECOLOGY

Landscape and Urban Planning

Pub Date : 2025-01-29 DOI: 10.1016/j.landurbplan.2025.105305

Thomas Seth Davis , John Mola , Nathan Comai

Wild bee populations are threatened by habitat fragmentation and land-use change, but few development plans consider resource competition. However, managed honeybees (Apis mellifera) are often introduced to residential areas by hobbyist beekeepers, placing potential competitive pressure on wild bees. We sampled bee-plant interactions from natural reserves across the peri-urban landscape of Fort Collins, Colorado (U.S.A.) and modeled pollination networks and bee foraging breadth in response to road and natural area density, reserve size, and background honeybee abundance. Four key findings emerged: (1) honeybees dominated pollination networks, representing 26% of recorded bee-plant interactions. High frequencies of honeybees reduced network modularity, but reserve size, natural area density, and seasonality did not predict network structure. (2) Honeybee frequency increased with road density and declined as natural area cover increased, indicating that higher residential densities drive honeybee pressure. (3) Patterns of floral visitation by honeybees and wild bees indicate substantial niche overlap, and foraging breadths of Megachilidae (leafcutter bees) and Colletidae (plasterer bees) declined as honeybee frequency increased. (4) Noxious weed species (e.g., Convulvulus arvense and Carduus nutans) had high rates of visitation by wild bees and were identified as both pollination network ‘hubs’ and ‘connectors’. We conclude that honeybee presence alters topology of bee-plant networks, and prioritizing creation of natural area reserves to maximize density of non-impervious cover may indirectly reduce competition with honeybees. Conservation practitioners can offset honeybee effects by favoring floral species that support wild bee foraging and are not visited by honeybees, especially in regions where honeybees are not native.

{"title":"Honeybee presence restructures pollination networks more than landscape context by reducing foraging breadths of wild bees","authors":"Thomas Seth Davis , John Mola , Nathan Comai","doi":"10.1016/j.landurbplan.2025.105305","DOIUrl":"10.1016/j.landurbplan.2025.105305","url":null,"abstract":"<div><div>Wild bee populations are threatened by habitat fragmentation and land-use change, but few development plans consider resource competition. However, managed honeybees (<em>Apis mellifera</em>) are often introduced to residential areas by hobbyist beekeepers, placing potential competitive pressure on wild bees. We sampled bee-plant interactions from natural reserves across the <em>peri</em>-urban landscape of Fort Collins, Colorado (U.S.A.) and modeled pollination networks and bee foraging breadth in response to road and natural area density, reserve size, and background honeybee abundance. Four key findings emerged: (1) honeybees dominated pollination networks, representing 26% of recorded bee-plant interactions. High frequencies of honeybees reduced network modularity, but reserve size, natural area density, and seasonality did not predict network structure. (2) Honeybee frequency increased with road density and declined as natural area cover increased, indicating that higher residential densities drive honeybee pressure. (3) Patterns of floral visitation by honeybees and wild bees indicate substantial niche overlap, and foraging breadths of Megachilidae (leafcutter bees) and Colletidae (plasterer bees) declined as honeybee frequency increased. (4) Noxious weed species (e.g., <em>Convulvulus arvense</em> and <em>Carduus nutans</em>) had high rates of visitation by wild bees and were identified as both pollination network ‘hubs’ and ‘connectors’. We conclude that honeybee presence alters topology of bee-plant networks, and prioritizing creation of natural area reserves to maximize density of non-impervious cover may indirectly reduce competition with honeybees. Conservation practitioners can offset honeybee effects by favoring floral species that support wild bee foraging and are not visited by honeybees, especially in regions where honeybees are not native.</div></div>","PeriodicalId":54744,"journal":{"name":"Landscape and Urban Planning","volume":"257 ","pages":"Article 105305"},"PeriodicalIF":7.9,"publicationDate":"2025-01-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143072562","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Optimizing green space-building landscape characteristics of key urban functional zones for comprehensive thermal environment mitigation

IF 7.9 1区环境科学与生态学 Q1 ECOLOGY

Landscape and Urban Planning

Pub Date : 2025-01-27 DOI: 10.1016/j.landurbplan.2025.105314

Zhifeng Wu , Ying Wang , Yin Ren

The Urban Heat Island (UHI) effect has garnered significant attention due to its detrimental effects, such as increased near-surface temperatures, reduced resident comfort, heat-related illnesses, and damage to urban ecosystems. While strategies including expanding green spaces, optimizing building layouts, adjusting vegetation, and using high-albedo materials are known to mitigate urban thermal conditions, a targeted, comprehensive approach to urban thermal management remains elusive. Our study addresses this gap by introducing a socio-economically driven method to segment the urban landscape into Urban Functional Zones, identifying and prioritizing zones with the most substantial thermal impact for enhancement. We stratify target zones into those requiring no adjustment, temporary non-adjustment, and those needing adjustment, based on the statistical distribution of land surface temperatures. We then employ landscape indices that encapsulate the spatial arrangement of green spaces and built environments, pinpointing specific structural elements within these zones for targeted thermal improvement. Adjustments are made to the building-green space landscape, focusing on high-temperature areas with the aim of aligning temperatures with low-temperature regions, guided by the identified structural elements indicated by landscape indices. Our research presents a clear, actionable framework for urban managers to improve thermal conditions, applicable to various cities requiring such interventions.

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引用次数: 0

Assessing accessibility and crowding in urban green spaces: A comparative study of approaches

IF 7.9 1区环境科学与生态学 Q1 ECOLOGY

Landscape and Urban Planning

Pub Date : 2025-01-24 DOI: 10.1016/j.landurbplan.2025.105301

Barbara Czesak , Renata Różycka-Czas

Urban green spaces (UGS) are pivotal elements of the structure of urbanised areas, important for the well-being of the city inhabitants. Therefore, it is necessary to provide tools for determining the accessibility and crowdedness of the UGS. To this end, we assess how much space there is for potential UGS users in individual green spaces. It is pilot quantitative study limited to an area of one city, showing the crowdedness of UGS in two approaches. In both approaches, we assume an extreme event observed in the time of pandemic that all people in the accessible distance visit a UGS at the same time. In the approaches, we have combined parameters from literature and the idea that analysing UGS accessibility could be size sensitive to come up with methods for assessing residents’ accessibility to green spaces with spatial analysis. Our study shows the variability of UGS accessibility throughout the city. The results indicate that to identify areas in cities with insufficient UGS, analyses using the commonly referenced 300-meter accessibility measure may be sufficient. However, for a more comprehensive assessment of UGS accessibility, it is necessary to conduct studies that are sensitive to UGS size and factor in the estimated population within it. The study tackles the UGS accessibility problems in a novel way of comparing two popular approaches and providing practical insights. The approaches may be useful for spatial planning practices to show the differences in local UGS accessibility and delimit areas with lower UGS accessibility. The findings may support the municipality in the practical task of monitoring the crowding of UGS in the city and facilitate decision making in the new UGS site selection process.

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引用次数: 0

Planning for transformative change with nature-based solutions: A geodesign application in Stockholm

IF 7.9 1区环境科学与生态学 Q1 ECOLOGY

Landscape and Urban Planning

Pub Date : 2025-01-22 DOI: 10.1016/j.landurbplan.2025.105303

Blal Adem Esmail , Chiara Cortinovis , Sigvard Bast , Carl C. Anderson , Lina Suleiman , Gustavo Arciniegas , Davide Geneletti , Ulla Mörtberg , Christian Albert

Advancing towards urban futures in which both human communities and ecosystems can thrive requires transformative change (TC). Spatial planning can serve as a backbone for inspiring and fostering the desired transformation of cities. However, to support this transformation, the challenge for spatial planning is to create unconventional plans that account for the complex trade-offs and interactions of different scenarios through participatory procedures. A promising approach for addressing this challenge is geodesign, since it couples spatial co-design with impact simulations. This paper aims to explore how, and with what effects, a geodesign process can support the co-creation of transformative urban plans that enhance biodiversity and ecosystem services while meeting urban development goals. A geodesign process was developed and deployed for a case study neighborhood in Stockholm, Sweden. Two scenario storylines were developed: one that follows the current city plan, and another one where the most transformative elements of the plan are further emphasized. Fourteen planning stakeholders divided into three groups translated the storylines into actual land use changes and explored the impacts of the two scenarios. The study findings indicate that the geodesign process enabled participants to develop transformative plans that address housing needs while also promoting biodiversity and ecosystem services through nature-based solutions. Participants showed high perceived desirability of TC scenarios in Skarpnäck but were mostly sceptical regarding the plausibility and probability of future implementation. Changes in perceived plausibility, desirability and probability comparing before and after the geodesign process were minor, with some inter-group variation. We recommend practical applications of geodesign to strategically involve key stakeholders throughout study conceptualization, scenario development, and model generation for better consideration of context. Enhancing geodesign tools for user-friendliness is also crucial. We suggest geodesign research to focus more on understanding its impacts on participants as well as scaling up for addressing complex challenges in metropolitan and landscape planning.

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引用次数: 0