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| 1 | Evolution and Simulation of Spatial-temporal Heterogeneities in Ecological Background Quality of Changsha City显示文摘By GIS and ENVI,TM/ETM remote sensing images of five districts(Yuelu District,Furong District,Yuhua District,Tianxin District and Kaifu District) in Changsha City center in 2005,2010 and 2015 were interpreted.Moreover,distribution chart for ecological background factors in 2020 was simulated by using CA-Markov module in IDRISI.Using principal component analysis,evaluation model for ecological background quality of the city was established.Via circle analysi s,GS+semi variance function analysis,hot spot area analysis and grey correlation analysis,integrated analysis and evaluation on spatial heterogeneity evolution of ecological background quality in research region were conducted.Results showed that firstly Changsha overall has formed ecological pattern of landscape island city,but ecological background started to show the evolution trend of high heterogeneity and fragmentation under the construction land expansion,and ecological background quality of the city declined from 0.300,6 to 0.257,1 during 2005-2020.Secondly,ecological background quality of Changsha City had typical circle and axial gradient structure,and 'eco tone' had the most violent evolution.Thirdly,spatial structure of ecological background quality had region,time and direction heterogeneities,and spatial heterogeneity of region was the most important.Fourthly,hot spot area distribution of ecological background quality evolution showed the 'frog jump' trend of gathering in marginal zone and diffusing to peripheral zone.Fifthly,in driving factors of ecological background quality,industrialization rate had the highest grey correlation degree(0.842,1),and grey absolute correlation degree between ecological background quality in Yuelu District and industrialization rate was the highest(0.603,1). | YU Bingjie TANG Youhai WEI Zhe BI Linglan ZHANG Lei | 2016 | Journal of Landscape Research2016，8，6： | 0 |
| 2 | Ecological Optimization Design Methods for the Green Space System in Densely Built-up Areas显示文摘This paper is aimed at studying the environmental degradation of densely built-up areas in the process of urbanization in China. In consideration of the severe environmental conditions of the densely built-up areas, such as the lack of green space and open space, ecological disturbance in some areas, poor landscape quality, this paper focused on the ecological space optimization in the process of urban renewal. Firstly, theories related to this field were analyzed, and a comprehensive ecological efficiency evaluation system was established based on disciplines such as urban ecology, landscape ecology, urban sociology, behavioral psychology, biology, urban planning and design. Secondly, this system was used to judge the ecological efficiency of typical blocks on GIS platform and to find out the key spatial nodes that need to be updated. Thirdly, in different cases, space optimization projects with different theories were designed, and the spatial model of influence was used to comprehensively evaluate their ecological efficiency. Finally, the parameters under different conditions were corrected to get a systematic system for evaluating the green space system in densely built-up areas. Due to the lack of understanding of the ecological function of green space in the past, the environmental condition of densely built-up areas is not good. Therefore, the most important task of urban organic renewal is ecological restoration. In this paper, the exploration is based on the reservation for built-up areas to avoid repeated reconstruction and interference. Authors of this paper tried to find out a way to rebuild green space system that performed more complex functions with limited spatial resources. The application of 'micro-transformation' of green space system in densely built-up areas turns out to improve the quality of landscape while reducing the construction cost. | BI Linglan ZHANG Fuwen ZHANG Fangming | 2018 | Journal of Landscape Research2018，10，4： | 0 |
| 3 | A Study on the Protection of Urban Fringe Habitat Units from the Perspective of the Actor-Network Theory显示文摘Being an important part of a region’s ecological space,the habitat units on the urban fringe continuously provide multiple services for the city and its residents and guarantee the ecological security of the local territory.Mainly composed of farmlands,secondary woodlands,ditches and ponds,etc.,they are typical semi-natural habitat which is subject to the influences of both the human society and the natural environment.As they involve multiple stakeholders and concern complex ownerships,top-down measures are difficult to be implemented,as presented by the Not-In-MyBackyard(NIMBY)phenomenon against protected areas.Based on the Actor-Network Theory,this paper clarifies the intrinsic relationship between the maintenance of urban fringe habitat units and the relevant social elements.Through the case study on Yilan’s practice of protecting and utilizing agricultural and forestry resources in Taiwan,China,the paper explores the community supported management and control strategies for the purposes of enhancing the protection of habitat units and promoting the effectiveness of regional services,which are implemented through the steps of implementing such translation methods as Obligatory Passage Point setting and benefit granting,recruiting and mobilizing relevant actors to form a network,and realizing the substantial protection of habitat units. | Tang Xizi Lei Qiuyun Shenglin Elijah Chang Bi Linglan Zhang Yu Qian Fang(译) Liu Jian(校) | 2021 | China City Planning Review2021，30，3： | 0 |
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