分析城市景观园林工程设计

随着我国城市经济建设的不断发展,城市景观园林建设行业开始逐步发展起来。本文主要从阐述城市景观园林工程设计特点出发,并从城市景观园林工程设计重点以及设计案例两个方面着重进行具体分析,希望能够为相关研究提供一定的借鉴。     

Efficient synthesis of 4D antenna arrays using a bitwise evolutionary genetic algorithm

In this paper, a bitwise evolutionary genetic algorithm (GA) is proposed to synthesize the power patterns of 4D antenna arrays efficiently. Within the binary optimized time sequences of 4D antenna arrays, the genes of 1 and 0 represent switch‐on and switch‐off period of antennas, respectively. Gene retention probability, which relates to the fitness values of each individual in the whole group, is proposed to evaluate how good each gene is. With the proposed gene retention probability, the crossover operator in traditional GA is replaced with a new method to generate the next generation. The proposed algorithm is applied to the synthesis of 4D antenna arrays with binary optimized time sequences, and the performance of the proposed algorithm is compared with that of traditional GA on the condition of the same parameter settings. The comparison results show that bitwise evolutionary GA improves the optimization efficiency significantly, which reduces the computation time as much as 85% on average of the traditional GA with the same goal. Copyright © 2014 John Wiley & Sons, Ltd.     

Andalusia,Spain: An Assessment of Coastal Scenery

The 1101 km length of the Andalusian coast (Spain) was assessed for coastal scenery at 45 specific locations. Selected areas covered resort (3), urban (19), village (8), rural (10) and remote (5) bathing areas. Scenery was analyzed for physical and human parameters via 26 selected parameters. These parameters were obtained by interviews of >500 people on European beaches. Each parameter was assessed via a one-to-five-point attribute scale, which essentially ranged from presence/absence or poor quality (1), to excellent/outstanding (5). Results were subsequently weighted by interviewing >600 bathing area users (not all 26 parameters have equal weight) and subjected to fuzzy logic mathematics in order to reduce recorder subjectivity. High weighted averages for attributes 4 and 5 (excellent/outstanding) reflected high scenic quality, vice versa for attributes 1 and 2. Sites were classified into five classes ranging from Class 1 sites having top grade scenery to Class 5, poor scenery. Seven sites each were found in Classes 1 and 2; 10 sites each in Classes 3 and 5; 11 sites in Class 4. The finest coastal scenery was found in remote areas whilst urban areas scored mainly as Class 3 or 4. Three out of the ten rural sites had Class 3 and 4 values assigned them whereas the rest scored as Class 1 and 2; village sites invariably had scores within Class 3 and 4. Of the three resort sites investigated, one scored as a Class 1 site, the others as Class 3.     

Engineering the Rural Idyll: Road Construction and the Peri-urban Landscape in Belgium, 1925–1940

As in many other Western countries, the road network in Belgium was subject to an extensive modernisation project during the interbellum period. This paper analyses how this project affected the relationship between the road and landscape. In the absence of a comprehensive landscape project for road construction from the government, other parties played an important role in defining the road's relation to the landscape. Through their publications, images and discourses, an idealised image of landscape—a rural idyll—became interwoven with the narrative of the modern road. We will first position this Belgian project vis-à-vis other road projects abroad, and describe why landscape was a non-issue for the Belgian government and its engineers. Subsequently, we will examine how other parties—the road association, the construction industry, urban planners and architects—appropriated fragments of landscape to frame or support their own projects.     

Landscapes of Challenge and Change: Contested Views of the Cairngorms National Park

The Scottish model of national parks reflects wider changes in the management of special or protected landscapes. This paper uses Ingold's dwelling conceptualisation of landscape to reflect on how material and cultural processes affect stakeholders' perceptions of the Cairngorms National Park in Scotland, UK. Important to understanding different views, is the separation, unique to the Cairngorms, of ‘the park’ from its management organisation. The paper argues that this separation creates a conceptual space for the negotiation of contested claims regarding the park. Such claims reflect not only the relationship between people and place, or as Ingold (2000) puts it, the landscape as it is known to those who dwell in it; they also represent vested interests and regimes of power concerning what happens in specific places. These claims do not reproduce simple splits between, for example, public/private or conservation/development but show a more complex picture.     

Integrating Ecological,Social and Cultural Dimensions in the Implementation of the Landscape Convention

Implementation of the European Landscape Convention requires new tools that link ecological, social and cultural dimensions in practical planning. Here, we propose connectivity as a conceptual tool to include different dimensions into landscape and spatial planning. We present a short review of the connectivity concept in relation to ecological, social and cultural dimensions and illustrate it by examples from a real landscape planning case.     

Are Perceived Sensory Dimensions a Reliable Tool for Urban Green Space Assessment and Planning?

Environmental psychologists have developed varying methods for landscape assessment according to how it is perceived and experienced. In the Nordic countries, eight perceived sensory dimensions are increasingly being used as a methodological framework for expert assessments. These are serene, nature, rich in species, space, prospect, refuge, social and culture. Using an onsite questionnaire distributed to green space visitors in Helsingborg, Sweden, this study is the first to examine the representation of the eight sensory dimensions in different types of urban green spaces as experienced by lay people and their relationships with green space attributes. The results showed that (1) prospect then serene and space were the most common, and culture and social the least; (2) the experience of the sensory dimensions varied across the six study sites and was related to their diversity of biotopes and overall size; and (3) respondent experience of the sensory dimensions was consistent across gender, age and frequency and type of recreational use. These results grant legitimacy to the method in assessment and mapping of recreational experience of urban green space.     

The Trees of the Sacred Natural Sites of Zagori,NW Greece

Cultural landscapes can often be identified by the presence of sacred trees which have been retained and can be recognised as distinctive veteran trees. The characteristics of these trees such as huge size and longevity give them an enduring presence in the landscape, while their conceptualisation as the ‘domesticated’ wild, transform them into symbols of spirituality and local history. In Zagori, NW Greece, trees gain sanctity by virtue of proximity or connection with sacred sites often associated with churches. In these sites, trees can grow into natural shapes as a result of strong taboos, which prevent use for private needs. There is an association between tree species and the nature of the sacred site: broadleaved oaks and maples are associated with outlying churches; plane trees are located in central squares, next to the church and provide a focal point for community life, while in cemeteries native evergreens are nowadays replaced by planted conifers. In the present day local communities appreciate sacred trees as living elements of their collective memory and local history.     

Charting the Potential of Landscape Urbanism in Dubai

Landscape Urbanism has been, to date, a theory emerging primarily from the Western world. This paper counters the Western focus by exploring the potential of Landscape Urbanism theory in Dubai. In a previous article published by the author, landscape architecture in Dubai has been identified as diverging from the tenets of the various charters of the International Federation of Landscape Architects (IFLA), having apparently scant regard for pressing ecological, social and cultural design issues. Landscape Urbanism in this paper is discussed with respect to its ability to bolster the practice of landscape architecture in Dubai in relation to these issues. The paper argues that a number of key facets of Landscape Urbanism appear difficult to reconcile with the ecological, social and cultural conditions of Dubai. Further to this, it tends to lack the tools by which landscape urbanists in Dubai could link theory with practice.     

Valley landscape management: the context of a ‘river contract’ in the Semois valley,Belgium

A trans‐boundary and multi‐disciplinary approach to the river contract project for the Semois valley in Wallonia (Belgium) is described that provided the opportunity for a landscape‐scale focus during actions to restore the watercourses and the associated valley area. A trans‐boundary landscape survey was carried out under the context of the Interreg III European programme. This resulted in the rediscovery of lost views and viewpoints within the landscape and in the implementation of actions leading to the opening up of the valley, which provided opportunities to re‐establish lost landscape features, such as hay meadows. The gathering of many partners in the negotiation process of this project can be seen as an example of ‘landscape democratization’ or participative management of landscapes in a trans‐boundary and trans‐disciplinary context and as such this project is a concrete realization of the aims of the European Landscape Convention (ELC).