| With the continuous and rapid urbanization process,urban space in China is becoming homogenized,and the features of urban and rural landscape are constantly declining,and the landscape of national space lacks effective planning and control.In the new era of ecological civilization construction,China’s urbanization has shifted from high-speed to high-quality development,and the shaping and control of urban,rural and territorial landscape features has attracted widespread attention,which has become an important issue in building a beautiful China,charming land and improving the quality of urban and rural living environment in the new era.In order to further strengthen the management of land and space,and urban and rural landscapes,countries have enacted a series of policy documents,relevant departments have also released the "urban design management method","national spatial planning and urban design guide" and other related guidance,aims to strengthen the urban design promote national spatial and urban and rural landscapes.Urban design is an important means of landscape style control,in which the comprehensive urban design is an important link in the overall control of territorial space and urban and rural landscape style.At present,the comprehensive urban design is in the transition stage,and the research and practice of landscape style control mainly focuses on the physical space design of urban centers and key urban and rural areas,and less attention is paid to the control and guidance of the overall landscape style of the whole territorial space.In addition,in the specific implementation and control,the zoning management and control method is too extensive and lacks the cognition of the background characteristics of landscape features,which makes it difficult to implement the control requirements into the unit plots.Based on the above practical problems,this paper is focused on the comprehensive urban design,the landscape features of the control,try to explore a kind of applicable to all cities and counties in national spatial domain is a new method of unit landscapes control,through the recognition of national spatial landscape style background characteristics,landscapes unit space division and value evaluation,and based on the value evaluation result,To establish a hierarchical and classified management system for landscape features in territorial space,and then put forward specific management and guidance strategies for landscape features units.First of all,based on the characteristics of the comprehensive urban design,landscape evaluation,landscape style,national spatial landscape landscape unit definition of related concept and connotation,and the related research and practice results of the system,in the "landscapes partition" and "unit" of landscape features and related theory is put forward on the basis of the concept of "landscapes unit".At the same time,by referring to the landscape feature assessment method,the research framework of landscape feature unit division of territorial space was established,and the technical process and method of landscape feature unit division was formed,which was "feature element selection-feature recognitionclassification regionalization-unit demarcation".On this basis,AHP is used to select indexes from three dimensions,namely natural environment,built space and history and culture,and construct the value evaluation system of landscape style units of territorial space from two levels,namely county and central city.Secondly,this paper selected Xishui County as an empirical study sample,and used GIS data processing and SPSS clustering analysis methods to identify and classify the landscape features of Xishui County from the county and central urban areas,integrated the plots with the same landscape features,and delimited the landscape units.At the same time,the land space landscape style unit value evaluation model is applied to evaluate the landscape style units in different areas of the whole area and the central city,and the final value evaluation result isobtained by statistical weighting of the evaluation index.According to the final evaluation results,the development of different types of landscape style units and the existing problems were analyzed.Finally,based on the analysis of value evaluation results and development status,a hierarchical and classified territorial space landscape style unit management and control system is proposed.Firstly,according to the value evaluation results,the landscape style units are divided into core landscape style units and general landscape style units,and the core landscape style units are further divided into first-level landscape style units and second-level landscape style units.Then,according to the development status,landscape style plans are formulated,and differentiated landscape style control strategies are proposed for different types and levels of landscape style units.The main conclusions of this paper are as follows:(1)The result of characteristic identification and unit division of Xishui County territorial space landscape features is formed.It is divided into 13 landscape style types and 181 landscape style units in Xishui County.(2)Based on the value evaluation results of landscape style units in Xishui County,7 landscape style units such as alpine woodland landscape style unit,hilly terraces landscape style unit and new town high-rise residential landscape style unit are defined as the core control units.(3)Establish a hierarchical and classified management and control system for landscape style units,and formulate corresponding control rules and additional plans for different levels and types of units... |
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