Ecological Remediation Technology of Urban Landscape Water Body

Urban landscape water body is not only an important part of urban landscape construction,but also an important way to maintain landscape diversity and biodiversity,carrying the beautiful yearning of urban residents for natural life.A good state of urban landscape water body is crucial to the ecological environment of the city.However,due to the poor kinetic energy of urban landscape water body and the influence of various human factors,the quality of urban landscape water body often declines,and urban population is threatened by water security problems.Through the study of several water body ecological remediation technologies,relevant suggestions are put forward,in order to provide a reference for water pollution restoration and treatment in urban human settlement environment.

The Role and Heterogeneity of Visual Pollution on the Quality of Urban Landscape Using GIS;Case Study: Historical Garden in City of Maraqeh

The urban landscape heterogeneity has been influenced by the visual, unpleasant and unacceptable face of which there is no charm in it. The present study is formed according to visual pollution and its impact on the appearance and vitality of a city. Preliminary studies and theoretical studies led to the hypothesis with the following themes: 1) There is relationship between the pollution, heterogeneity and visual disturbances urban landscape and urban vitality;2) Improving the quality, aesthetics and identity of public spaces will increase urban vitality. Therefore, the design process within the theoretical principles, concepts, television and urban landscape, urban art, visual pollution aspects (color, light, and visual symbol) and the quality of urban vitality and explain causal relationships, analytical framework developed and more samples case (garden historic town of Maraqeh1) and the area under study were selected using GIS. After designing the questionnaire to evaluate the objectives, assumptions and questions of research and its analysis, the results indicate that the relationship between visual pollution and urban vitalitys, as well as proving hypotheses and vitality after the final analysis, model was introduced based on the components of comfort visual editing and proposed at three levels: micro, middle and macro for objectives, strategies and policies to regulate visual pollution and improve the aesthetic quality of the environment and the promotion of vitality.

The Research on Land-Use Change and Ecological Environment Effect of Urban Landscape in China

The rapid expansion of urban construction land has become the major characteristic of urban land-use change in China today. Meanwhile, the rapid urbanization process has led to the great changes of urban landscape in China, and it also has had certain impacts on environmental factors such as climate, soil, hydrology, biodiversity, etc., then it has made the overall ecological environment deteriorated. This study is based on the summary and analysis of research on land-use change and ecological environment effect of urban landscape in recent 20 years in China, and it aims at providing scientific bases and theoretical supports for the planning and construction of urban landscape, the sustainable land-use of city and the protection of ecological environment in China.

Composition and Value Orientation of Urban Landscape

Based on the analysis of the urban landscape and its composition,main problems of urban landscape at the early stage of urbanization were summarized,including more attention to the technical content of urban landscape,valuing transformation but belittling protection,emphasizing uniformity,ignoring the diversity,lack of scientific planning,and neglecting the value orientation. It is expected that the construction of urban landscape may return to its aesthetic value,practical value,ecological value and other aspects of value orientation. It is believed that the urban landscape is both a type of perception and experience. It can not only maintain the cultural heritage and the evolution of civilization,but also maintain the integration of the biological and physical environment,play the role of diversification in the urban public open space,and undertake social functions such as ecological,disaster prevention,waterlogging,and water conservancy at the same time of protecting and lighting the environment.

Development of the Urban Periphery and Issues Related to Urban Landscape Due to Gated Communities

Due to the industrialisation and rapid urbanisation after 1950＇s, housing demand has increased together with an insufficient housing production to meet the need in Turkey. As a consequence of the large deficit between the annual housing demand and supply, squatter housing construction was the major means for shelter of low income families who can not have their place in the housing market as buyers. Squatter houses are located either on the peripheries of the cities or mostly outside of the urban boundaries on public land or illegally subdivided land by creating many physical, social and environmental problems. After 1990＇s, depending on the globalisation wind and neo-liberal policies that enriched the new elites who have new life styles, the housing capital focused on these group. After 1999 earthquake in Turkey, the fear of possible earthquake has also changed the housing preference as from the high-rise apartment buildings to the lower detached houses. As a consequence of this supply-demand chain, the private housing investment was directed to the gated communities which are isolated settlements with restricted access, so that public spaces are privatised or their use is prohibited or controlled on the edge of the metropoliten cities. These settlements also have physical and social problems. This paper will analyze the change of urban periphery, location and relation with the natural thresholds and the main transportation system of these settlements of Turkey in the light of literature review and some development plans and interview with real estate developers and users.

Application of Interactive Installations in Urban Landscape Design

At present,many scholars at home and abroad have put forward classic theoretical knowledge about interactive installations,but the application research of interactive installations in urban landscape design is relatively vague.Moreover,most of them focus on the research of individual interactive installations without taking the surrounding environment into consideration,and there are few targeted researches on the application of interactive installations in landscape design.In this study,through the investigation on interactive forms and implementation methods of interactive installation intervention in urban landscapes,as well as domestic excellent cases,we discovered the existing problems of interactive installation intervention in urban landscape design and put forward our own opinions on future development.

VR-based Urban Landscape Artistic Design

"Digital City" has gradually emerged,promoting the digitalization of urban landscape design,and meanwhile,virtual reality (VR) technology allowing us to create and experience the virtual world has come into reality.The use of VR technology in the urban landscape design,and interactive 3D dynamic view,multi-source information fusion and system simulation of the entity behavior will be beneficial to generate the simulation environment of urban landscape design on the computer,and guide the scientific development of urban landscape design.On this basis,this article analyzed the connotation of VR technology and basic characteristics of urban landscape artistic design based on the overview of previous studies on the urban landscape design in multiple aspects,and further explored the application of key technology in the VR-based simulation of urban landscape artistic design,to provide the reference and idea for urban landscape design,and improve overall effect of urban landscape artistic design.

Effects of the urban landscape on heatwave-mortality associations in Hong Kong: comparison of different heatwave definitions

Despite increased attention given to potential modifiers of temperature-mortality associations, evidence for variations between different urban landscape characteristics remains limited. It is in this context that in this paper effect modifications of multiple urban landscape characteristics are explored under different heatwave definitions for different age groups and gender in Hong Kong, China. Daily meteorological data and heatwave-related mortality counts from 2008 to 2017 were collected from the Hong Kong Census and Statistics Department, China. A case-only design was adopted, combined with logistic regression models to examine the modification effects of five urban landscape characteristics under six heatwave definitions. Stratified analyses were conducted to investigate age- and gender-specific effect modifications. It is found that individuals living in greener areas experienced lower levels of mortality during or immediately after heatwaves. In contrast, a higher building density and nighttime land surface temperature (LST) were associated with a higher heatwave-related mortality risk. Pronounced effect modifications of these urban landscape characteristics were observed under hotter and longer heatwaves, and in older adults (age ≥ 65 years) and males. The findings provide a scientific basis for policymakers and practitioners when considering measures for coping with hotter, longer, and more frequent heatwaves in the context of global climate change.

Research Characteristics of Thermal Comfort of Urban Block Landscape Based on Knowledge Graph Analysis

The landscape environment of urban blocks plays a significant role in improving the comfort of urban thermal environment and promoting green and high-quality development.The 342 papers related to the research on the impact of urban block landscape environment on thermal comfort in China,collected by CNKI(China National Knowledge Infrastructure)from 2002 to 2022,are used as the research object.Through bibliometric statistical analysis,LLR algorithm,and cluster analysis,the current research status of the impact of urban block landscape environment on thermal comfort in China is analyzed and processed,and its external characteristics are identified.Using the information visualization software CiteSpace,the research topics in the field of the impact of urban block landscape environment on thermal comfort are presented in the form of knowledge graphs.Through co-occurrence analysis of keywords and trend of word frequency changes,the development trends of research hotspots and cutting-edge fields of the impact of urban block landscape environment on thermal comfort are determined,hoping to provide reference for future research in this field.

Public policies and conservation plans of historic urban landscapes under the sustainable heritage tourism milieu: discussions on the equilibrium model on Kulangsu Island, UNESCO World Heritage site

Purpose The tensions and threats in historic urban landscapes brought about by heritage tourism are still regional,global,general,and dynamic issues.For Kulangsu,there is an obvious problem in the connection between the current conservation plan and public policy.To a large extent,public policy cannot effectively,specifically,and flexibly respond to the dynamic problems in the implementation of the conservation plan,which seems insufficient concerning the effect of these conservation plans and public policies on promoting the adaptive reuse and sustainable tourism of the historic urban in Kulangsu heritage sites.Thus,giving more consideration to the combination of public policies and conservation plans of historic urban landscapes under the heritage tourism milieu,ensuring a balanced,sustainable,and integrated development pattern still calls for new discussions in achieving good performance of sustainable heritage tourism.This study conceptually discusses the equilibrium model of historic urban landscapes with a range of strategies under a sustainable heritage tourism background and responds to the synthetic contradiction of the imbalances among public policy,conservation plans,and development practices.Design/methodology/approach The study is based on a range of prepared desktop studies(public policy studies,conservation plans),field surveys,participant observations,and randomised interviews to respond to the insufficiency of the current heritagepractices.Findings This study discusses the equilibrium model of sustainable heritage tourism at heritage sites.It takes Kulangsu Island,a UNESCO World Heritage site in Southeast China,as an example to discuss the equilibrium model,which encompasses a convergent parallel framework and three dimensions concerning heritage management and policymaking.The equilibrium model of historic urban landscapes is a dynamic framework that integrates social,economic,environmental,and cultural concerns into a holistic collaborative framework under a sustainable heritage tourism background.Originality/value In line with the requirements of the Historic Urban Landscape(HUL)approach and general principles in support of sustainable urban heritage management promoted by UNESCO and ICOMOS,the study points out the peculiarities and potential of the equilibrium mode in solving the current challenges of historic urban landscapes for sustainable heritage tourism.Finding ways of linking policymaking,conservation,development,heritage tourism,and different interest groups to a holistic framework can stimulate effective means and management mechanisms for the complicated and changeable issues of sustainable heritage tourism.

Weak influence of natural vegetation in urban green spaces compared to agricultural ecosystems on House Martin populations:Insights from nationwide citizen science data in the Czech Republic

The House Martin(Delichon urbicum)is a common farmland bird species in the European landscape,yet its population numbers are currently in decline.However,it is not yet sufficiently explained why this long-term decline occurs.To fill this gap in our knowledge,we investigated how land cover composition affects the abundance of House Martins on the landscape scale by using nationwide citizen science data.Utilizing a generalised linear mixed-effect model(GLMM),we evaluated 12,094 records from the Czech Republic spanning 2009-2017.Our analysis underscores the significance of land cover type in shaping House Martin abundance.More specifically,our results indicate that within agricultural land covers“naturally managed arable lands”exhibited significant positive effect,while forests,orchards,and vineyards were deemed less favourable for House Martin populations.Within urban land covers,we found a clear distinction in the impact on House Martin populations,with a positive effect observed in urban infrastructure,development areas,and post-industrial sites(i.e.,UrbanAreas),while an indifferent impact was noted within urban green spaces and landscaped areas(i.e.,GreenUrban).Notably,our findings suggest that the simple spatial,age,and species structure typical of forests in Europe,and similarly,the uniform structure of parks and gardens,may be responsible for the decline in the abundance of the House Martin.We advocate for the preservation or enhancement of urban greenery,expansion of natural vegetation in rural areas and adoption of ecological management practices in orchards and vineyards to mitigate further declines in House Martin populations.

Assessing Linear Urban Landscape from dynamic visual perception based on urban morphology

As an essential part of the urban landscape,linear urban landscape(LUL)is the interaction between humans and nature,which is closely associated with daily life and brings multiple characteristics to visual perception.Current studies focus on complex models that describe visual perception using static viewpoints,but lossing the continuous and dynamic features of visual perception.This paper provides a general framework that can quantify dynamic visual perception based on urban morphology and improves accuracy in the descriptions of LUL linear spatial characteristics.Based on Beijing-Hangzhou Grand Canal(Hangzhou urban section),the proposed framework combines the indicators of multiple dimensions to quantify dynamic visual perception and emphasizes the continuity of LUL.To represent the dynamic visual perception and the spatial pattern characteristics of LUL,different evaluation criteria of indicators are set according to landscape scales.To minimize subjectivity and uncertainty caused by subjective cognition and fulfill the landscape pattern under different urban development policies,we set up distinct scenario preference patterns.With appropriate fine-tuning of scenario preference patterns and setting of movement types,the proposed method can be adapted to other LUL projects and aspires to provide a general methodology and scientific guidance for urban planning and landscape management.

Does the spatial arrangement of urban landscape matter?Examples of urban warming and cooling in Phoenix and Las Vegas

This study examines the impact of spatial landscape configuration(e.g.,clustered,dispersed)on land-surface temperatures(LST)over Phoenix,Arizona,and Las Vegas,Nevada,USA.We classified detailed land-cover types via object-based image analysis(OBIA)using Geoeye-1 at 3-m resolution(Las Vegas)and QuickBird at 2.4-m resolution(Phoenix).Spatial autocorrelation(local Moran’s I)was then used to test for spatial dependence and to determine how clustered or dispersed points were arranged.Next,we used Advanced Spaceborne Thermal Emission and Reflection Radiometer(ASTER)data acquired over Phoenix(daytime on 10 June and nighttime on 17 October 2011)and Las Vegas(daytime on 6 July and nighttime on 27 August 2005)to examine day-and nighttime LST with regard to the spatial arrangement of anthropogenic and vegetation features.Local Moran’s I values of each land-cover type were spatially correlated to surface temperature.The spatial configuration of grass and trees shows strong negative correlations with LST,implying that clustered vegetation lowers surface temperatures more effectively.In contrast,clustered spatial arrangements of anthropogenic land-cover types,especially impervious surfaces and open soil,elevate LST.These findings suggest that city planners and managers should,where possible,incorporate clustered grass and trees to disperse unmanaged soil and paved surfaces,and fill open unmanaged soil with vegetation.Our findings are in line with national efforts to augment and strengthen green infrastructure,complete streets,parking management,and transit-oriented development practices,and reduce sprawling,unwalkable housing development.

Connecting Concepts of Cultural Landscape and Historic Urban Landscape: The Politics of Similarity

This paper projects the concept of cultural landscapes into the realm of urban conservation in the context of the Historic Urban Landscape(HUL)paradigm.To do this I take an historical overview of how,during the latter half of the 1980s and early 1990s,academic and professional interest in heritage studies started to embrace the cultural landscape construct.This movement continued through the 2000s with increasing links between theory and practice on urban conservation concerns and the concept of cities as cultural landscapes.In this connection the move in 2011 by UNESCO with the Recommendation on the Historic Urban Landscape is particularly notable.Coincidental were two significant movements.First was increasing questioning of heritage as focusing narrowly on the monuments and sites mentality.Second has been the growing appreciation that urban conservation locking onto separate historic towns or specific parts of cities is counter-productive;it ignores towns and cities as holistic entities isolating historic areas virtually as museum pieces separate from the rest of the urban fabric and lacking sustainability.In contrast HUL with its landscape approach is a process1 that embraces-city-wide-cultural,natural,tangible and intangible,social,economic,visual and experiential aspects of the physical morphology of the city and the image of the city;it underpins the fundamental concept of urban areas as a series of layers through time that link past,present and future as in the construct of cultural landscape.

Urban Vegetation Landscape Fragmentation and the Change of Ecological Values in Shenzhen

Due to the increasing man-made activities,the vegetation landscape in the rapidly urbanized areas has changed dramatically.Based on the theory of landscape ecology and the evaluation method of ecosystem service function,this study took the vegetation of Shenzhen City as the research object,and used TM image as the main data source in 1985,1995,2005 and from Vol.4 of 2015 with the support of remote sensing and GIS technology to analyze the variation of vegetation landscape fragmentation and its ecological change.The results showed that the vegetation landscape fragmentation in Shenzhen City was significant in the past 30 years,and the vegetation landscape was the main characteristic in the fluctuation trend.The change trajectory of the vegetation landscape was the main focus,and the woodland land area was the largest land for construction.The fragmentation of vegetation landscape reduced the overall value of ecosystem services and hindered the function of life support systems.

基于CiteSpace的国际景观规划研究热点分析——以Landscape and Urban Planning 2010~2019年载文为对象

全球范围内以城市化为主要驱动力造成的景观变化,成为当今世界最大的挑战议题之一,景观变化和城市发展的可持续解决方案成为国际研究热点。以国际权威期刊Landscape and Urban Planning 2010~2019年刊载的1891篇论文为研究对象,利用科学计量学及计量可视化软件CiteSpace,从发文量、载文类型、国家占比、合作机构、共现关键词等方面分析了国际景观规划近10年的研究热点。研究结果表明,国际景观规划近10年研究热点集中在国土利用和管理、城市绿道和绿色空间、城市雨洪管理、乡村景观、生物多样性保护、城市热岛、低碳城市、景观结构等方向。该结果可为科研工作者提供借鉴信息,为我国城市景观规划理论创新与实践发展提供有益启示。

The Way Forward with Historic Urban Landscape Approach Towards Sustainable Urban Development

The pace of urbanisation,with the increase in the number of metropolitan areas,has been paralleled with the heritage discourse of past generations that valorises monuments in isolation,and has pushed the ap­preciation of urban heritage to a grim corner in the face of development.Since the turn of the millennium there are international efforts to reverse this trend by placing culture and people-centred approaches into the heritage discourse in order to allow inclusive policies that see culture and cultural heritage as an asset and driving force for sustainable urban development.As one of such instruments,the UNESCO Recommendation on the Historic Urban Landscape,as an integrated management model,is considered in this article to have potentials to bridge existing divides to achieve sustainable urban development.With this belief,the paper looks into the future,with supporting arguments that come from discussions as a result of the WHITRAP International Expert Meeting on the Implemen­tation of the HUL approach which took place in 2018,Shanghai,China.

The Historic Urban Landscape and the Metropolis

The Historic Urban Landscape(HUL)recommendation adopted by UNESCO in 2011 provides a holistic approach based on landscape planning principles.It is in line with the International Guidelines for Urban and Terri­torial Planning adopted by UN-Habitat in 2015(UN-Habitat 2015).HUL concerns the integration of culture in territo­rial planning processes and the historical urban centre inside their urban or city context.Large cities are becoming the dominant pattern of the human settlements worldwide.They are the main engine of economic development,attracting people for jobs,creating the highest values and are the main support for the globalisation process.The 21^(st) century is the era of the metropolis,with a large increase of cities of more than 500,000 inhabitants.The heritage of the 21^(st) century will be building through the metropolis.We can consider the metropolis as an artefact of the humankind.It produces large urban-rural systems supported by large infrastructures,iconic buildings and specific facilities.The upgrading of the main characteristics of the metropolis adds value in cities for the quality of life,creating new heritage at a scale greater than the existing world heritage categories.HUL could be extended as a relevant approach to be applied on the metropolitan scale.

Urban landscape structure anatomy:Structure patterns and typology identification in the space-time of Setif City,Algeria

The definition of urban form and its elements raises a wide debate in urban morphology.This study presents a proposal to understand the structuring of the urban landscape of Setif City over 170 years(1848-2018)by abstracting its main elements into permanent structure(PSUL).It corresponds to the street network,more static to the change of the town plan,and flexible structure(FSul),more resilient to change and explains the superimpositions of morphological components(plot,building,and land use).This work aims to identify typological patterns of structures suggested in space-time through the inspection of the growth of the street network and the filling of morphological layers framed by the concept of urbanity.The methodology is based on syntactic(diachronic)morphogenetic analysis,with statistical analyses as unsupervised classification.Results indicate that PSUL presents an accumulation of microincrements produced with a similar degree of coherence in different urban fabrics,which explain the local patterns of street network structuring.The typology of FSul patterns indicates an unbalanced growth by the arrangement between morphological elements,resulting in a variation in the degree of urbanity.

Influence of Urban Street Greening Design under the Concept of Green Healthy Cities:A Case Study of Hefei City

In order to explore the influence of urban street greening,the street landscape of Changjiang West Road and Xiyou Road in Hefei City was selected as the research sample to study the design of urban street landscape under the concept of green healthy cities.The results show that the urban street landscape of Hefei City is single in design and plant type,and plant maintenance management is not good.It is proposed to strengthen the maintenance and management of street greening,increase the types of native plants,and improve cultural connotation,so as to enhance the artistry,regionalism and functionality of urban street landscape in Hefei City.