Research On Layout Of Mizhi County Green Open Space Based On Fractal River System

Urban green open space is an important part of many urban system, has importantfunction of natural ecology and the social cultural functions, is at present our countrygovernment departments can overall planning of a handful of public resources, is theinteraction of natural ecological environment and urban artificial environment, is toimprove the urban space structure and function of regulator, are also contributing to theurban development into the core of the sustainable development space carrier. Cityentity space is equivalent to the black ink, green open space the same space as thepicture, a black, white, black and white photograph to jointly promote the effectiveoperation of the city organism.Valley gully loess plateau region is one of the longest living environmentdevelopment history of China, also is the most fragile ecological environment in ourcountry, one of the most serious soil erosion areas, the landform drainage with typicalfractal self-similar characteristics, the construction of urban green open space should bewith local fractal characteristics of landscape water system has a direct relationship.After the reform and opening up, especially since the21st century with the developmentof economy and science and technology, the loess plateau, valley city has entered anunprecedented rapid development period. However, due to ignore during the process ofurban construction on the loess plateau gully city’s green valley open systemparticularity, apply general valley hilly urban greening system development pattern, inorder to precious valley terrace for more area of land, construction land compressedgreen corridor area, building DAMS, Banks, for there is no flow of river corridor evenburied, gullies of the loess plateau valley caused by urban sprawl and soil and water lossproblem, make originally fragile ecological security is threatened further. Thesis in the perspective of fractal loess gully loess plateau urban green open space.First principle and distribution shape of basic theory and method, based on the overviewof domestic and foreign related research; Then to the point of fractal MiZhi countylandscape water system was studied with regular summary, detailed MiZhi countylayout evolution of urban disasters and the fractal characteristics of landscape watersystem, the relationship between green open space and argument has the advantage ofcombining fractal water system; To summarize and argument radius of fractaldimension, grid fractal dimension, boundary, meaning of fractal dimension of theplanning and analysis based on MiZhi county greening status and characteristics of theopen space, and further from the waterfront green corridor, waterfront green patches,the urban greening Angle to carry on the quantitative research; According to theanalysis of the original green open space of the overall planning of amended, on thisbasis, put forward the optimization scheme, and get the reasonable MiZhi county urbangreen open space of the fractal dimension.Papers from the preliminary analysis to the optimization solution are conducted aquantitative research process: the status quo of green open space and water systemlandscape fractal has carried on the quantitative analysis of the research; On the shapeand width of the waterfront green corridor, patches of green space on the basis of fractalscale shape determine a reasonable level; For final green open space of the reasonablescheme of fractal dimension are also given in reference of the quantitative indicators.