Research On Multi-scale Green Network Planning In Wuhan

Under the development trend of systematic protection of green space and optimization and renewal of green space system,green network is becoming a research hotspot in many disciplines such as landscape architecture due to its characteristics of extensive coverage,diverse functions and extended scale.Although the current researches on green network all respect the scale characteristics of green network,most of its planning and construction only focus on a single scale of a single city,and there are few studies or practices on the multi-scale integration and construction of a single city green network.From this perspective,this study discusses the connotation and planning method of multi-scale green network,and takes Wuhan as an example to conduct an empirical study on green network at the municipal,urban and subregional scales.The main conclusions include:1.the basic theories and planning methods of multi-scale green network planning are clarified by using inductive research method and comparative research method.Green network is a network system formed by the integration of green space in urban and rural areas,including natural ecological space and artificial open space.The core idea of green network planning is to establish an integrated,continuous and comprehensive ecological system covering all kinds of land and space,and build green space in urban and rural areas into a green network for sustainable development.Green network planning involves a very wide range of planning objects,so the scale characteristics of green network can be covered from the block scale to the regional scale or even to the land scale."Green source","green path" and "green spot" can be taken as the basic structure of multi-scale green network planning,and the construction of this structure at different scales has become the principle that must be followed in multi-scale green network planning.2.the urban scale constructs the green network structure system oriented byecological conservation in wuhan.Including 47 "green sources",covering 25 water source protection areas,9 wetland nature reserves,6 scenic areas,6 forest parks and 1 wetland park;The total length of the "green path" is about 105.78 km,forming the distribution of two ring paths inside and outside as well as a number of connected paths inside and outside.On the whole,it forms an ecological conservation pattern of "green source is distributed in four directions,green path is interlocked with two rings,and green spots are inlaid in many places".3.the urban scale constructs the green network structure system oriented by the functional diversity of the central urban area of Wuhan.It includes two types of "green source" structure: natural ecological type and artificial open space type,covering five elements including vegetation coverage,water space,scenic spots,commercial facilities and sports facilities.Section 90 "green path" builds ecological and cultural corridors relying on urban roads,which are divided into two levels according to the influence ability of "green source".The framework of "wuying high speed sheltering forest--hankou jiangtan park--shahu park--east lake scenic spot--south lake" of the municipal green network in the central urban area was retained and emphasized,which continued the ecological pattern of the municipal area and promoted the exchange of material and energy between urban and rural areas.4.a green network structure system oriented by full coverage of green services for residential areas in jianghan district of Wuhan city is constructed on a regional scale.To people in real life scenarios on the use of green network feelings as a starting point,focus on assessment and planning the structure of "green spot",a total of street green space planning construction,community garden,the "green spot" 24 such as ribbon park,prove the function of green space recreation compound "green spot" is to improve the high density proper quantity and quality of effective way;The centralized planning and construction of "green spot" improves the network system at the scale of city and city,andextends the network efficiency of the overall green network.