مقاله انگلیسی رایگان در مورد بهینه سازی فضای سبز برای دگرگونی شهر – الزویر 2018

As an important part of the urban ecosystem, urban green space provides multiple functions such as regulating microclimate, providing residents’ recreation space, and purifying the atmospheric pollutant (Larson et al., 2016; Ngom et al., 2016). Further, urban green space plays an important role in solving many environmental problems, such as loss of biodiversity, water pollution, soil erosion, and rising temperatures associated with city heat-island (Lee and Maheswaran, 2011; Lovell and Taylor, 2013; Adinolfi et al., 2014). In addition, planning and construction of urban green space are not only the direct embodiment of city’s soft power, but also the momentous symbol of urban civilization level (Swanwick et al., 2003; de la Barrera et al., 2016). Therefore, scientific planning and management of urban green space is essential for the benefit of urban development both ecologically and social – economically. With the development of green space assessment and planning theory, urban green space assessment and optimization have attracted more attention recently (Jansson, 2013; Yao et al., 2014). Urban green space assessment is an important measure for ecological environment, and can provide the foundation for planning and optimization. In terms of quantitative analysis, each country has its own indicators to quantify urban green space. These indicators are used to measure the health of urban ecosystem associated with the process of urbanization (Rupprecht and Byrne, 2014; Santiago et al., 2014). The assessment of ecological service quality of urban green space is based on the landscape evaluation method, using landscape metrics, Analytic Hierarchy Process (AHP) and green space accessibility. The landscape metrics method is a powerful tool for landscape pattern analysis, nevertheless, it is unable to describe accurately all the ecological processes of urban green space (Kong et al., 2007). Suitability analysis based on AHP can effectively reflect the spatial difference of urban green space services quality, but the suitability layer weight is greatly influenced by individual judgments (Uy and Nakagoshi, 2008). Green space accessibility analysis can quantitatively reflect users’ performance overcoming the difficulty, such as distance, time and cost to reach a service facility or activity place, which can be used to detect the potential service areas of urban green space more scientifically (Dony et al., 2015; Laatikainen et al., 2015). Quantity indicators such as park accessibility and landscape metrics have been used for urban green space optimization by a number of researchers (Lee and Hong, 2013; Moseley et al., 2013; Reyes et al., 2014). Their studies, however, focused mainly on large or medium-sized cities with adequate infrastructure. Few studies using the combined qualitative and quantitative method to assess urban green space. In recent years, the urban development gradually changes from production-oriented to consumption-oriented (Yeh et al., 2015). Following the rapid urbanization, traditional industries with manufacturing as the core are gradually being replaced by the emerging creative, cultural and leisure industries (Aboy, 2012; Demirtas-Milz, 2013; Qian, 2015). In the process of urban transformation, a complete infrastructure can accelerate the urban development process, and a detailed and sophisticated urban green space plans will become the brace or booster for urban development and transformation (Németh and Langhorst, 2014).