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  • VIEWS & CRITICISMS
    Ingo KOWARIK
    Landscape Architecture Frontiers, 2021, 9(1): 92-103. https://doi.org/10.15302/J-LAF-1-030025

    Wilderness is a cultural construct that is deeply rooted in many societies. For landscape architects and their predecessors, wilderness has long been important as a contrast to artificial garden elements, as an inspiration for naturalistic plant designs, or today as a timely contribution to reconciling cities and their inhabitants with the natural world. Since cities and wilderness have traditionally been seen as opposites, new approaches are necessary to better address the opportunities and challenges associated with wilderness in urban regions. From an ecological perspective, urban wilderness can be defined as an area characterized by a high degree of self-regulation in ecosystem processes where direct human impact is negligible. This allows two main types of wilderness to be distinguished: “ancient wilderness” represented by natural remnants in many cities, and “novel wilderness,” which arises in artificial urban-industrial sites. The two types require different approaches in designing and managing green spaces. Ancient wilderness is a traditional object of conservation and restoration, and offers inspiration for naturalistic plantings. In contrast, the emergence of novel wilderness has long been associated with neglect and socio-economic decline. Since the 1980s, however, early pioneer projects in Germany have started to integrate novel urban wilderness into the green infrastructure. The results are unprecedented green spaces that combine novel wilderness with design interventions. These places are attractive to visitors, contribute to biodiversity conservation, and support many ecosystem services. This article aims to illustrate the opportunities and challenges of integrating wilderness components and processes into the urban green infrastructure—a timely way to reconnect cities with nature.

  • PAPERS
    Xiaojiang LI, Bill Yang CAI, Carlo RATTI
    Landscape Architecture Frontiers, 2018, 6(2): 20-29. https://doi.org/10.15302/J-LAF-20180203

    Streets are a focal point of human activities and a major interface of the social interaction between urban dwellers and urban built environment. A better understanding of the urban landscapes along streets is thus important in urban studies. The increasing availability of street-level images provides new opportunities for urban landscape studies to study and analyze streetscapes at a fine level and from a different perspective. In this study, we presented an application of a recently developed Deep Convolutional Neural Network on landscape analysis based on street-level images. Different urban features were identified from street-level images accurately using a trained Deep Convolutional Neural Network model. Based on the image segmentation results, we further measured the spatial distribution of the street greenery and quantitatively analyzed the openness of street canyons in Cambridge, Massachusetts. The proposed combination of Artificial Intelligence and the massively collected street-level images provides a new sight for urban landscape studies for cities around the world.

  • PAPERS
    Yuting YIN, Yuhan SHAO, Zhenying XUE, Kevin THWAITES, Kexin ZHANG
    Landscape Architecture Frontiers, 2020, 8(4): 76-89. https://doi.org/10.15302/J-LAF-0-020005

    The street is a type of important urban public space with multiple social values, one of which is the restorative potential. Based on the “beingaway,” “extent,” “fascination,” and “compatibility” constructs of restorative environments proposed by the Attention Recovery Theory, this study elaborated the significance of restorativeness provided by street environments to people living in high-density cities. It used the traditional restorativeness scale with mobile eye trackers to explore the restorative experience provided by an urban street, and identified the specific streetscape elements related to restorativeness and the degree of their influences. The results show that “greenery,” “people,” and “cars” perform significant influences, and different streetscape elements have different degrees of influences on the 4 constructs of the restorative environment. For example, for the“being-away,” “extent,” and “fascination” constructs, the influence of “greenery” is the most important, while “people” plays the core role in “compatibility.” The findings can help professionals develop targeted design strategies to improve diverse street environments for a better restorativeness.

  • PAPERS
    Xuezhu ZHAI, LANGE Eckart
    Landscape Architecture Frontiers, 2020, 8(3): 58-77. https://doi.org/10.15302/J-LAF-1-020030

    Natural wetlands play a vital role in maintaining regional water balance, regulating regional climate, and maintaining biodiversity. Due to urban sprawl in China, the loss of natural wetlands has been dramatic. In recent years, nature-based solutions, including wetland parks, have been advocated to compensate for this loss and to reduce vulnerability and disaster risks. As a result, inspired by natural wetlands or building on existing wetland ecosystems, hundreds of wetland parks have been created in China over the last decade. Most research on ecosystem services of wetland parks has to date focused on technical perspectives, with only a few addressing public perception; the public’s perception of wetland parks is not well understood. This research used social media (i.e. Sina Weibo) to access large volumes of data and provide temporal and geographic granularity. A semantic analysis of microblogs was performed to understand how the public perceives the ecosystem services of wetland parks in Guangzhou. This study explored the public’s perceptions and compared these with the ecosystem services as communicated by professional institutions, and probed into the factors that affect these perceptions. The results showed that the top three ecosystem services perceived by both the general public and communicated by institutions are recreation, aesthetics, and refugia / habitat. There is a strong interconnection between the perceptions of recreation and aesthetics services. Flowering plant species and colored-leaf trees are the most important stimuli affecting perceptions of aesthetics services, and birds are key to the perception of refugia / habitat services. These results provide a basis for better aligning management of projects utilizing naturebased solutions, such as wetland parks, with expectations from the public.

  • PAPERS
    Mengyi XU, Yao SHEN, Yuhui LIAO, WOOLLEY Helen
    Landscape Architecture Frontiers, 2020, 8(2): 10-25. https://doi.org/10.15302/J-LAF-1-020026

    The Child Friendly Cities Initiative launched by UNICEF aims to protect child rights and promote the establishment of urban and community environment conductive to children development, and safety must be guaranteed first as the precondition of the child rights. Based on social, health, and mobility safety required by the initiative, this paper focuses on how to evaluate children’s mobility safety in the community environment. After literature review, 41 indicator articles involving 18 assessment tools and 82 other articles were screened, and safety-related indicators were selected to establish an evaluation indicator framework composed of three first-level indictors, i.e., motor traffic environment, walking / bicycling environment, and other indicators. They were further subdivided into 11 second-level indicators, 29 third-level indicators, and more fourth-level indicators. Although this framework needs localized verification and adaption in Chinese cities, it can help systematically improve the mobility safety requirements of the existing regulations and guidelines of urban environment construction to establish a multi-leveled indicator system and provide references for performance evaluation on related practice at all stages.

  • PAPERS
    NIE Wei, JIA Jiangxu, WANG Mimi, SUN Jin, LI Gang
    Landscape Architecture Frontiers, 2022, 10(2): 36-51. https://doi.org/10.15302/J-LAF-1-020059

    Green View Index (GVI) is a core indicator to measure urban quality. Identifying proper ranges of GVI has become a significant proposition in Landscape Architecture to design environments that can increase individuals’ pleasure level. However, quantitative research on the pleasure level impacted by varied GVIs is still inadequate. This research explores the changes of pleasure level through EEG data collection and questionnaire survey under panoramic scenarios with different panoramic GVIs, which can represent more environmental elements than two-dimensional images. By adding shrubs and trees gradually, this experiment precisely set five scenarios with the GVI changing from 0 to 30%, 60%, 90%, and 0. Research results show that 1) individuals’ pleasure level dropped to the lowest when they first enter the scenario with a panoramic GVI of 0, but when panoramic GVI increased from 0 to 30% and to 60%, the pleasure level increased and finally researched the highest; 2) in an environment with a panoramic GVI of 90%, individuals’ pleasure level significantly reduced, while some participants self-reported the sense of fear and oppression; and 3) when shifting panoramic GVI from 90% to 0, the bright and open space increased participants’ pleasure level. All these findings reveal that individuals’ pleasure level reached the highest under the scenario with 60% panoramic GVI; extremely high panoramic GVI may lead to negative emotions; and landscape with carefully designed panoramic GVIs can improve one’s pleasure level. Future research may probe into the relationship between GVI and individuals’ pleasure level from more perspectives to provide reference for the design, optimization, and evaluation of outdoor urban greening.

  • PAPERS
    Yutian SI, Jin FANG, Liyan XU
    Landscape Architecture Frontiers, 2021, 9(3): 28-47. https://doi.org/10.15302/J-LAF-0-020013

    This paper reviews the ecological infrastructure planning practices by LA PKU and Turenscape over the past two decades, discussing the application and development of the ecological security pattern theory in different types of ecoregions and typical habitats, and that of ecological process analysis methods in practice. Nearly 100 studied projects employed this theory to address different local ecological problems. But similarities could be found regarding the key ecological issues among similar habitats. Far from mainly addressing habitat protection issues at its early stage, the ESP theory by now has expanded its application to all important ecological processes and sub-processes. This paper focuses on related application at urban and regional scales, attempting to summarize 1) approaches to solving local ecological problems via ecological infrastructure planning in a wider geographic range, and differences concerning the application modes in varied ecoregions; 2) ways to harmonize man–land relations and to achieve synergic development in typical habitats; and 3) influence brought by the wider spatial range to the application on the understanding of ecological processes, the establishment of sub-security-patterns, and the renewal of analysis techniques. The empirical analysis in this study suggests that both the methodology and application of the ESP theory contribute to China’s ecological civilization construction, providing valuable technical support and theoretical basis for territorial spatial planning.

  • VIEWS & CRITICISMS
    Ulrika K. STIGSDOTTER, Ulrik SIDENIUS
    Landscape Architecture Frontiers, 2020, 8(3): 78-89. https://doi.org/10.15302/J-LAF-1-030015

    Urban green space is attributed a significant role in addressing health challenges associated with urbanization. This is supported by evidence confirming that urban green space may both promote health and well-being and support nature-based treatments. Landscape architects who design to improving health outcomes have an important task; but one which also come with responsibilities. This is also noted by the World Health Organization, which states that it is vital to understand how to design green space so that it actually delivers the intended positive health outcomes. In order to deal with this situation, various tools and design guidelines have been developed by them. However, considered from a designer’s perspective, these tools are seldom expedient enough to apply in the design process, and the guidelines are often not as generalizable as supposed.

    In the current article, the authors present a process model for Evidence-Based Health Design in Landscape Architecture (EBHDL) and suggest that it may be useful as a means to deliver on stated health outcomes. The model has been developed over the last 15 years by the research group Nature, Health & Design at the University of Copenhagen. During this period, the model has been constantly enhanced via input evidence from researchers, practitioners, and university students. The EBHDL process model consists of four steps, all of which the landscape architect may be responsible for: Evidence collection, Programming, Designing, and Evaluation.

    The model has been applied in the design of the University of Copenhagen’s therapy garden, Nacadia®, and health-promoting forest, Octovia®. Based on encouraging results from research projects, the first step towards a validation of the EBHDL process model have now been made. The benefits of the model include the fact that it is interdisciplinary, systematic, transparent, and dynamic. A weakness of the model is that it is time-consuming, and thereby also costly.

  • VIEWS & CRITICISMS
    QIU Baoxing
    Landscape Architecture Frontiers, 2018, 6(4): 42-47. https://doi.org/10.15302/J-LAF-20180404

    Uncertainty exists in the current urban development of contemporary cities and is getting diversified and complicated. Identifying and adapting to such uncertainty is partly defining the future development of urban planning and design. The concept of “resilient city” is developed from the current scientific demands in urban planning and design. This article suggests that Complex Adaptive System as a new system theory would help resilient city planning and construction. According to the Complex Adaptive System theory, a resilient city should possess the adaptability of its components, diversity, autonomy, appropriate redundancy, slow-variable management, and identification, in order to improve the ecological, social, and economic resilience and vitality of the city.

  • PAPERS
    Yuhan SHAO, Xinyu XU, Jia YUAN
    Landscape Architecture Frontiers, 2021, 9(1): 14-25. https://doi.org/10.15302/J-LAF-1-020039

    The process of urban sprawl, restructure, and shrinkage provides the possibility for the formation and evolution of urban wildscapes. Physically, urban wildscapes refer to the urban spaces where the ecology is basically dominated by natural processes and similar to the natural wilderness in appearance and functions. The existence and persistence of wilderness fragments in cities often result from the reduction of human management and with minimal intervention on the nature. Due to the different interactions and confrontations between natural processes and social processes, the wildness of urban wildscapes varies. The unique and irreplaceable values of urban widlscapes in ecology, culture, aesthetics, economy, and well-being have gained multi-disciplinary attention and been widely recognized. This paper defines the concept of urban wildscapes, reviews the conceptual development of its connotation, and analyzes the multiple benefits of urban wildscapes on the basis of value recognition research. It hopes to provide a value recognition framework for empirical studies, helping urban residents, planning designers, and managers identify, appreciate, experience, and sustainably manage natural resources and urban ecological network, and providing scientific guidelines for ecological urban development.

  • VIEWS & CRITICISMS
    Vance G. MARTIN, Melanie HILL
    Landscape Architecture Frontiers, 2021, 9(1): 80-91. https://doi.org/10.15302/J-LAF-1-030022

    The concept of wilderness (荒野) has multiple characteristics and values relating to three principal areas: biological, socio-economic, and iconic. To provide clarity of concept, the term was included in the IUCN’s list of Protected Area Categories in 1992. More recently, a current and fashionable expression “urban wilderness” has emerged. For those who believe in the critical importance of natural wilderness areas to the future health and wellbeing of our planet, and who work to protect these areas, the term “urban wilderness” causes much consternation. It is very possible that such usages will create confusion in the mind of urban dwellers—now the majority of the global population—as to what “real” wilderness is. By definition, cities cannot be “wilderness” technically. However, elements of wilderness can and should be present in and around urban areas to enhance human health and quality of life. Rather than calling this urban wilderness, however, the term should be “urban wildness (野境).” This paper presents a rationale for using “urban wildness” to replace “urban wilderness,” citing some of the characteristics and benefits of urban wildness; provides case studies of urban areas that are working successfully with the concept; elucidates the role and challenges of wild animals (especially predators) in urban areas; and finally, gives an example of an engagement and educational methodology connecting urban dwellers to wild values and benefits.

  • PAPERS
    Jia YUAN, Fengyi YOU, Chunli HOU, Huajie OU, Yuan YIN
    Landscape Architecture Frontiers, 2021, 9(1): 26-39. https://doi.org/10.15302/J-LAF-1-020041

    Fragments of wilderness dominated by natural succession exist in urban environments, and play a critical role in protecting biodiversity, supporting urban ecological processes, and connecting human beings with nature. Urban vegetation rewilding is a key approach to restricting urban wilderness by restoring the species composition, community structure and functions, eventually towards a self-maintained vegetation community. This paper, taking wildflower meadows as a reference, establishes a technical framework of urban vegetation rewilding by leveraging ecological flows and adopting quasi-nature design with minimum interventions. The framework covers 5 aspects, namely self-design, micro-topographic design, quasinature design, collaborative symbiosis design between plant community and keystone animal species, and design with natural materials. Studying the green space along the northwest lakeside of the Shuangguihu National Wetland Park in Liangping District, Chongqing, this paper provides a scientific guidance and technical paradigm for vegetation rewilding and urban wilderness restoration in the complex context of natural–artificial urban landscapes.

  • PAPERS
    Yushu LIU, Zhenyu WANG, Zhuoran SHAN
    Landscape Architecture Frontiers, 2021, 9(2): 38-49. https://doi.org/10.15302/J-LAF-1-020044

    Suzhou City enjoys its regional water networks as a driver to promote the evolution of urban-rural landscapes, where water space is an important part of urban-rural public spaces that defines spatial characteristics, supports public health, and offers recreational opportunities. Cultural ecosystem services (CES) ranging from aesthetics, recreation, education to culture are the core public demands and a key aspect in shaping the identity and vitality of water spaces. However, along with the rapid urbanization, the historical city-water spatial pattern, social connections and relations, and regional cultural spirit have gradually faded away. Such problems can be addressed through inventory renewals and cultural revivals of water spaces based on CES enhancement. This research introduces the Importance–Performance Analysis to study CES of water spaces by examining representative water spaces of Suzhou, in order to examine the correlations between CES types and landscape elements/factors. By collecting the residents’ assessment data on the importance and performance of a series of landscape elements/factors, this research measures and evaluates the demand–supply relations of the studied water spaces, conducts a strategic zoning to identify the landscape elements/factors to maintain, of over-supply, needs no priority or to improve, respectively. Finally, the paper proposes planning strategies and construction guidance for enhancing water space CES in Suzhou in the aspects of ecological management of water network, highlighting of water town image, and planning and scheming of local projects.

  • PAPERS
    Noha Ahmed Abd El AZIZ
    Landscape Architecture Frontiers, 2020, 8(4): 42-59. https://doi.org/10.15302/J-LAF-1-020034

    Decoding the relationship between crime and place has been the focus of researchers in both design and social fields for a few decades. Space syntax theory offers the possibility of examining the configuration characteristics of the environment and their potential influences on people’s activities and crime patterns; however, its implementation in landscape architecture has been limited. This study responds to such a gap by exploring the effectiveness of applying space syntax theory to predict safety levels in a park in Cairo, Egypt. depthmapX was used to analyze the spatial configuration of the park. Crime records from 2019 were collected through site observation and staff interviews, and analyzed using ArcGIS 10.3 software. Results indicated a strong correlation between space depth / integration / connectivity and crime pattern distribution. The park visibility graphs indicated the different impacts of vegetation (evergreen tree / deciduous trees) in summer and winter on visual connectivity and crime types. The research concluded that applying space syntax theory to landscape architecture is challenging; nevertheless, it represents a promising approach to predict committing crimes in urban parks, and the findings can be adopted to enhance park conceptual designs to achieve higher safety level.

  • PAPERS
    CHEN Yiyan, CHEN Zheng, DU Ming
    Landscape Architecture Frontiers, 2022, 10(2): 52-70. https://doi.org/10.15302/J-LAF-1-020064

    To understand the attention distribution and visual cognition in streets, this study conducted an experiment on Nanjing Road Pedestrian Mall (Street) using Head-mounted eye-trackers. Participants’ attention distribution were analyzed via Area Of Interest (AOI) during real-life walking scenarios, combining with several experiment tasks (i.e., destination selection, point-of-interest photography, and in-depth interviews), to capture participants’ naturalistic decision-making. The study combined automatic semantic segmentation with manual audit to code participants’ attention fixation duration and proportion by AOIs. A new indicator „information density,” which is the ratio of the attention percentage to the exposure percentage of a given environmental element, was introduced to describe the efficiency of environmental elements on attracting attentions. Findings revealed information density varies across environmental elements: higher information density was found in sign, building entrance, brand name, and poster; the lower was found in building, sky, and ground; while tree and person fell in between. Findings hence suggest environmental elements of higher information density (such as business signs) should be systematically designed to enhance desired experiences. Findings also indicated that personalized experiences are more likely to induce positive associations about environment which eventually lead to place attachment.

  • THEMATIC PRACTICES
    Kongjian YU, Yao GONG
    Landscape Architecture Frontiers, 2021, 9(3): 86-97. https://doi.org/10.15302/J-LAF-1-040025

    The Yellow River Basin is one of the greatest and most important ecological barrier and economic belt in China. When the Yellow River Basin is seen as an ecosystem in whole, the floodplains in the lower reaches are critical to the basin’s health and biodiversity. However, due to the extreme complexity of the natural environment of the floodplains, current flood control policies, long-term agricultural activities, and extensive rural construction and production dikes, the river ecosystem has suffered from considerable damage and a serious decline of ecosystem services. In the planning and design project of the Zhengzhou Yellow River Floodplain Park, the characteristics of the lower, intermediate, and higher floodplains have been carefully identified, site-specific ecological restoration measures for each floodplain type were implemented, highlighting the authenticity and natural qualities and improving the overall ecosystem services. In addition, a slow traffic system and innovative industries along the Yellow River are introduced to enable high-quality cultural perception and recreational experience of the improved ecosystem services, promote green production and lifestyle. These measures help make the Yellow River a river that truly benefit the locals. In the context of ecological protection and high-quality development of the Yellow River, as a national agenda, the ecological restoration planning strategies proposed in this article provides a reference for the development of ecological management and green economy in other sections of the lower reaches of the Yellow River.

  • PAPERS
    HU Xueling, LIU Xueming, LI Jiali, JIANG Bin
    Landscape Architecture Frontiers, 2022, 10(2): 9-35. https://doi.org/10.15302/J-LAF-1-020063

    Knowledge workers drive social and economic development in contemporary cities but often exhibit poor psychological and physical health because of sedentary work, long-term and intense mental labor, and high-level occupational competition. Thus, providing high-quality restorative green spaces in knowledge workers’ proximity to promote their health and well-being has become an important and pressing need. Although the multiple health benefits of proximity to green spaces have been highlighted, the existing planning and design practices are not well supported by scientific theories and evidence. This study interprets the health benefits of proximity to green spaces in work environments considering four theoretical mechanisms: stress reduction, attention restoration and landscape preference, physical activity promotion, and sensory enrichment through an integrative literature review. Next, the paper identifies the key environmental characteristics of green spaces that can enhance the health and well-being of knowledge workers. In addition, it develops a set of criteria for evaluating the restorative capacity of existing sites and a set of guidelines to design restorative nearby green spaces, and proposes a simple paradigm to connect interdisciplinary research and practice.

  • VIEWS & CRITICISMS
    Jinguang ZHANG, Zhaowu YU, Bing ZHAO
    Landscape Architecture Frontiers, 2020, 8(4): 104-113. https://doi.org/10.15302/J-LAF-1-030019

    Urban green spaces can not only offer a wide range of ecosystem services, but also promote public health. Most of existing studies have effectually explored the correlation between urban green spaces and public health, but failed to dig the complex impact mechanism behind. This article firstly goes into the positive and negative impacts of urban green spaces on public health, and proposes a theoretical framework of the impact mechanism from perspectives of physical activity encouragement, stress management, social cohesion enhancement, and regulating / supporting services provision by ecosystems. On this basis, 6 health-oriented urban green space system planning strategies are proposed, including promoting the availability, improving the accessibility, enhancing the visibility, optimizing the spatial composition, constructing a network pattern of urban green spaces, and reducing the negative impacts of urban green spaces on public health. The research results can provide theoretical grounding and reference for public health promotion and sustainable urban development to exert more health benefits with limited urban green spaces.

  • EDITORIAL
    Jia YUAN
    Landscape Architecture Frontiers, 2021, 9(1): 10-13. https://doi.org/10.15302/J-LAF-1-010013

    Urban wilderness is the remnant nature existing within the cracks of urban context, which can provide habitats for wildlife and natural recreation areas, with significance in optimizing urban ecological resilience. On the one hand, the unprecedented urbanization processes and the public’s negative hypotheses on the concept have caused continuous reduction of urban wilderness; on the other hand, opportunities are seen in reconstructing and activating urban wilderness when natural processes return to dominate the idle lands resulting from industrial recession and urban shrinkage, and the rewilding concept and techniques develop gradually. With ecological civilization construction, the initiative of a systematic management of the mountains, waters, forests, farmlands, lakes, and grasslands, and the advance of adopting Nature-Based Solutions in China, it is the best time to acknowledge urban wilderness in depth, identify its connotations and values, construct identity recognition, and carry out practices of conservation and restoration.

  • PAPERS
    Yi XIAO, Sizhu DAI, Bing ZHAO
    Landscape Architecture Frontiers, 2020, 8(3): 26-43. https://doi.org/10.15302/J-LAF-1-020028

    Cities have suffered from urban heat island (UHI) effect due to rapid urbanization, which can be effectively adjusted by urban green space. Taking the community parks in central area of Nanjing, Jiangsu Province as an example, this paper explored the size and shape of smallscale parks to mitigate the UHI effect. Land surface temperature was retrieved from Landsat 8-OLI remote-sensing image of 2019. The 52 studied community parks were identified with ArcGIS 10.4, and classified by kernel building density. The threshold-size and optimal shape of community parks to mitigate UHI effect were then discussed. The results showed that 1) with the increase of buffer ring distance around the community parks, the cooling intensity decreased and the cooling extent were mostly less than 180 m; 2) the area, shape, and the NDVI of the parks were important factors affecting the cooling intensity; 3) the cooling intensity of community parks under a high kernel building density was better, with a higher threshold-size (0.848 hm2) than that of the low ones (0.384 hm2); and 4) the optimal cooling intensity would occur when the park in a shape of circle or square. In conclusion, it is suggested that small green space should be planned in the areas under a high building density. Through renewal design and refined management measures in the urban green space system planning, giving full play to the ecological benefits of urban green spaces in mitigating the local UHI effect can also be expected.

  • PAPERS
    ORDÓÑEZ Camilo
    Landscape Architecture Frontiers, 2019, 7(3): 46-61. https://doi.org/10.15302/J-LAF-1-020001

    Nature-based solutions can help build resilience in urban landscapes. New governance arrangements have been suggested for assisting local governments in implementing nature-based solutions. A dominant nature-based solution initiative is the activities and policies directed at the increase of the number of trees and treecanopy coverage in a city. This study explores how polycentric governance of urban forests may operate by focusing on how key decision-makers coordinate their priorities and actions in urban forestry decisions. A stakeholder-centered view on polycentric governance is taken, specifically focused on the view of municipal managers, to develop a better understanding of the social systems behind the implementation of naturebased solutions. This was done by using social data elicited from 19 in-depth interviews with urban forest managers working in nine local councils in Greater Melbourne, Australia. The data analyses show that the most important decisions that municipal managers make, and where other stakeholders have the most influence, relate to tree removal for developments, significant tree retention, tree planting for site renewal, and ageing trees removal. The most important stakeholders influencing these decisions include other municipal departmental units, developers, state actors, and residents. Non-governmental greening groups do not play a very important role. Various types of coordination, such as the ones between municipal departments, between nongovernmental stakeholders (especially developers and residents), between state government policies, as well as public consultation, are needed to better mobilize stakeholders’ influence and input. Capitalizing on greening groups that aim to retain trees in urban areas, not just planting more trees, can potentially support the current decisions made by municipal managers, which respond to urbanization pressures.

  • PAPERS
    Ying LONG
    Landscape Architecture Frontiers, 2019, 7(2): 8-21. https://doi.org/10.15302/J-LAF-20190202

    The Fourth Industrial Revolution is profoundly changing our cities with a series of disruptive technologies, characterized for the boom of Internet industries and the everyday application and wide integration of intelligent technologies. Individuals’ traditional mechanical thinking has changed into a mindset based on big data, whose cognition also relies more and more on a combination of both virtual and physical reality experience. At the same time, cities, where we live, are witnessing a significant revolution in resource utilization, societal conditions, and spatial use. Along with the surge of new technologies and new data represented by computer technologies and multi-source urban data, the (new) Urban Science, as a transdisciplinary combination of urban computing, Artificial Intelligence, augmented reality, and human-computer interaction, rises over the past decade. Research institutions and programs on the (new) Urban Science are flourishing globally, and increasing related degree programs and courses are offered by colleges and universities worldwide to respond to the needs of this new era.

  • PAPERS
    Neil LEACH
    Landscape Architecture Frontiers, 2018, 6(2): 8-19. https://doi.org/10.15302/J-LAF-20180202

    Artificial Intelligence is playing an everincreasing role in our lives, but what impacts might it have on the design professions? Will it introduce a new style? Or will it just help to improve the design process? Or will it have a completely different impact? This article attempts to offer an overview of the potential of Artificial Intelligence, defining the different forms of Artificial Intelligence, and illustrating its argument with the work of three designers. It argues that Artificial Intelligence will not generate a new style. However, it will have a radical input on the process of designing. It is also likely to force us to call into question many accepted beliefs within the design community. Certain traditional terms, such as the concept of a “design” and the very notion of “designing,” are likely to be replaced by a new lexicon that includes terms such as “searching” and “outcomes.” But, more importantly, the whole myth of the “artistic genius” is likely to be also called into question. What Artificial Intelligence tells us, as the paper concludes, is not how “artificial” Artificial Intelligence is, but rather how misguided our own understanding of human intelligence has been.

  • papers
    Galen NEWMAN, Dongying LI, Rui ZHU, Dingding REN
    Landscape Architecture Frontiers, 2018, 6(6): 10-23. https://doi.org/10.15302/J-LAF-20180602

    Many urban areas affected by flood disasters are also becoming increasingly ecologically and socially fragmented due to the accumulation of vacant properties. While redevelopment is often viewed as the primary objective in regenerating vacant properties, they can also potentially provide ecological and hydrological land uses. Rather than chasing developmentbased incentives for regenerating vacant lots in high flood-risk communities, a balance should be sought between new developmental land uses and green infrastructure to help counteract stormwater runoff and flood effects, or “Resilience through Regeneration.” This paper uses landscape performance measures to evaluate the economic and hydrologic performance of green infrastructure regeneration projects for three marginalized neighborhoods in Houston, Texas, USA. Each project site is characterized by excessive vacant lots and flood issues. Results suggest that, when using green infrastructure to regenerate vacant properties, 1) flood risk continually decreases, 2) upfront economic costs increase in the short term (when compared to conventional development), and 3) the long-term economic return on investment is much higher.

  • PAPERS
    Fangzheng LI, Danlu PENG, Boya WANG
    Landscape Architecture Frontiers, 2019, 7(4): 56-69. https://doi.org/10.15302/J-LAF-0-020001

    Landscape planning adjusts spatial structures and functions by altering the types of land use / land cover and the patterns of landscapes, and thus further impacts ecosystem services. This paper examines the impacts of landscape planning on ecosystem services and draws the conclusion that the control over the types of land use / land cover, the altering of landscape patterns, and the adjustment of landscape functional characteristics could change the type, quality, and performance of ecosystem services, respectively. Through an overall review on the application of ecosystem service evaluation, spatial mapping, and scenario simulation, this paper further concludes their roles in landscape planning: ecosystem service evaluation provides means to ensure scientific landscape planning; spatial mapping serves as a basis to the decision making; and scenario simulation visualizes all kinds of possibilities for an optimal choice. At the same time, such applications in landscape planning practices, ranging from green space planning, ecological conservation redline planning, land use planning to biodiversity protection planning, are exemplified. Finally, this paper summarizes existing research findings and limitations and proposes that future research is expected to study the relationship between landscape planning and ecosystem services, to build a dynamic composite planning framework that can improve ecosystem services, and to propel the research on the tradeoff-and-synergy among ecosystem services in landscape planning.

  • PAPERS
    Xixi CHEN, Liang LI, Li TAN, Lu YANG
    Landscape Architecture Frontiers, 2019, 7(6): 50-65. https://doi.org/10.15302/J-LAF-1-020013

    Urban greenways play a key role to a city’s nonautomobile commuting and help alleviate traffic congestion. Currently, China’s greenway planning research and practice focuses mostly on suburban areas where greenways provide ecological, historical, cultural, and recreational services, while fewer studies explore urban greenways that serve citizens’ daily non-automobile commuting and recreational needs. Compared with suburban ones, urban greenways often face more spatial limits in the built-up areas and need to respond to more challenging demands. Supported by multisource data and the rise of big data technologies, this research explores the methods of urban greenway route planning that are underpinned through GIS spatial analyses (potential evaluation on spatial construction conditions of greenways) and big-data-based user behavior analyses (of citizens’ daily use of greenways). Demonstrating the authentic planning case for Haidian District, Beijing, the research proposes a series of construction strategies to urban corridors of roads, waterways, and railways, respectively, which integrate green spaces with non-automobile system, in order to improve the services of linear spaces in cities.

  • EXPERIMENTS & PROCESSES
    Julia WATSON, Avery ROBERTSON, Félix DE ROSEN
    Landscape Architecture Frontiers, 2020, 8(3): 148-157. https://doi.org/10.15302/J-LAF-1-050019

    Looking to Globally Important Agricultural Heritage Systems (GIAHS) sites and traditional ecological knowledge-based infrastructures (Lo–TEK), we find nature-based systems that symbiotically work with the environment. This article suggests that by hybridizing Lo–TEK with high-tech systems, the GIAHS sites could offer designers a toolkit towards economically, ecologically, culturally, and technologically innovative systems that can improve productivity and resilience. Whereas urban development results in the erasure of history, identity, culture and nature, this idea explores how urbanization can be an agent for the migration and reapplication of agricultural heritage systems, rather than their greatest threat. Cities can leap-frog the typical Western model of displacing indigenous diversity for homogenous high-tech. Instead, catalyzing localized, agricultural heritage landscapes like those designated as globally important agricultural heritage systems, as scalable, productive and resilient climate change solutions and technologies. It requires a shift in the thinking about traditional agriculture and about the relationship to Nature, from superior to symbiotic.

  • PAPERS
    Li JIANG, Song LIU, Chao LIU
    Landscape Architecture Frontiers, 2021, 9(6): 8-23. https://doi.org/10.15302/J-LAF-1-020057

    Against the backdrop of global climate change and in regards of urban sustainable development, enhancing climate resilience has become a critical strategy in adapting climate change for urban areas, where blue-green infrastructure is considered an important means. Although existing studies mention that blue-green infrastructure (BGI) can promote urban resilience by increasing its own diversity, flexibility, redundancy, modularization, and decentralization, questions like where to promote, by what specific means to promote and to what extent it could promote to are still lack of scientific exploration, leading insufficient support for applying resilience theory into planning and design practice. This research recognizes the role of BGI in building climate resilience in the key fields of functioning–urban floods, sea level rise, and high temperature and heat waves–and summarizes that the common functioning mechanisms include the biophysical properties of BGI, forming modular units with other infrastructures of similar functions, and the reliance on networked structures to help the system restore its physical functions and social connections as quickly as possible after disturbances and attacks. This paper also analyzes possible obstacles that hinder the promotion of BGI solutions–the lack of data support to BGI functioning mechanism, the lack of comprehensive assessment on ecological-social-economic benefits, and the difficulty in gaining confidence from decision-makers and the public. Finally, this paper proposes countermeasures from aspects of theoretical development, planning practice, and implementation and management, in order to offer insights for building urban climate resilience.

  • PAPERS
    G. Mathias KONDOLF, Georges DESCOMBES, Aude ZINGRAFF-HAMED
    Landscape Architecture Frontiers, 2021, 9(4): 10-27. https://doi.org/10.15302/J-LAF-1-020051

    In process-based restoration, the objective is not to create a complex river form directly; instead, interventions are intended to “prompt” the natural processes to restore such forms. The improvements in ecological conditions are actually made over time by flowing water during floods (using the stream’s energy), and by the growth of riparian vegetation (using incoming solar energy). On the Aire River in Geneva, ecological function was restored to a formerly canalized river by providing the river with an espace de liberté. A grid of channels cut into the valley bottom allowed the river to freely flood, erode its bed and banks, and deposit bars, creating complex surfaces on which riparian vegetation established to support the food web of the riverine ecosystem. The diamond-shaped bits of land left between these channels (“lozenges”) gradually erode and evolve as the river migrates, creating complex channel forms. The Isar River in Munich restoration involved adding coarse sediment load, creating erodible bed and banks in place of formerly rigid boundaries, expanding process space for river migration, erosion, and deposition, and increased human access to the river over 8 km. Since restoration, natural transport of sediment has resulted in deposition of gravel bars, whose forms evolve during floods, supporting diverse habitats. The Isar and Aire Rivers provide compelling examples of processbased restoration meeting 4 criteria for process-based restoration: space, energy, materials, and time. They demonstrate the possibilities of urban river restoration to achieve both ecological and social goals through restoration of fluvial process.

  • PAPERS
    SHI Shuhan, YU Kongjian
    Landscape Architecture Frontiers, 2021, 9(4): 28-49. https://doi.org/10.15302/J-LAF-1-020052

    Water culture is one of the key issues in Water Ecological Civilization. China’s traditional water cultural landscape embodies rich water cultures, and have a significance in related research and protection practice. This paper proposes the concept of “water cultural landscape,” that is, the landscape formed through humans’ environmental alteration during water activities—including how people use, transform, and manage it. The traditional water cultural landscapes in Huizhou Region have developed over hundreds of years, reflecting the locals’ wisdom in sustainable water use. The water cultural landscape in Huizhou Region should be interpreted as a systematic notion, in which all landscape elements such as ponds, weirs, and shuikous are interdependent, composing the landscape components e.g. valleys, hills, and basins, and establishing water security patterns for cities, towns, villages, and for production. The traditional water cultural landscape in Huizhou Region requires local generations’ long-term maintenance and management, and in turn it is also vital to Huizhou people's life and Huizhou culture. Today, it acts as an ecological infrastructure for sponge countryside and sponge city construction, and an important resource for heritage protection and tourism development.