Based On The Perspective Of "Three Lives", The Evaluation Of Land Space Function And Its Zoning Research

Regional space is an important carrier of the natural system and social economic system,and the division of territorial space functions is an important measure for my country to continuously promote the construction of ecological civilization and the stable development of the spatial planning system.At present,production space is occupied,residential space is compressed,ecological space is squeezed,and space functional attributes are unbalanced.In this context,through combing the related research of land space,it can be found that the identification and classification of land space functions from the perspective of production and life is the mainstream direction of current research.Due to identification of land spatial functions.In addition,successful research has focused on macro-regional guidance,but the actual guidance and results are not sufficiently operable.Therefore,this article is based on the perspective of the "production-living-ecological" function and follows the logical idea of "spatial feature analysis-fu nctional evaluation-functional zoning".Anning City,Yunnan Province is selecte d as the research object,based on the analysis of the characteristics of the stu dy area's territorial spatial structure and spatial layout changes.,Using the imp roved TOPSIS model to exploratory quantitative identification of the "three birt hs" function of the land space,the traditional TOPSIS method failed to consid er the index weight in the calculation process,thus ignoring the difference in i mportance that affects the reliability of the final result.In the TOPSIS model,the coefficient of variation method is used to determine the weights to improve the calculation process,and the comparative advantage function index method is used to determine the combination type of the comparative advantage functio n of the study area.The main research conclusions are shows:(1)Analysis of structural characteristics of land space useThe changes in spatial quantity structure and the evolution trend of spatial distribution in the study area are analyzed.,Referring to the existing research results,combining the actual situation of the region,taking production,living and ecological functions as the leading factor,taking into account the versatility of space and land use types,constructing a national spatial classification system,and dividing the land and space in the research area into agriculture Production space,industrial and mining production space,rural living space,urban living space,woodland,grassland ecological space and ecological space 7 major types of space,such as water ecological space,and using spatial statistical analysis methods to obtain the number and amount of national spatial structure in the study area Spatial distribution characteristics.The results show that:1.From the perspective of quantitative structure,the main types of land space in the study area are forest ecological space and agricultural production space.However,with the development of social economy and the influence of human activities,there is a trend of gradual decrease.Woodland ecological space occupies an absolute advantage in the land space types of the study area.2.From the perspective of spatial layout,the spatial heterogeneity of each space type is obvious.On the whole,its changing characteristics and trends are also different over time.Based on the improved TOPSIS method,evaluation results are consistent with the actual situation,and the evaluation result is scientific and reliable.(2)Evaluation of ecological and ecological functions of national spaceThe function of "life production" comes from living production space,but it breaks through the limitations of "life production" space.Based on evaluation index system for good functions of territorial space has been constructed,which includes 18 evaluation indexes.Use standard area unit as evaluation unit,the coefficient of variation method is used to calculate the weight of each evaluation index factor,and the function ratio of the unit is described in the form of a weighted percentage.Based on the improved TOPSIS model,the "ecology,ecology,ecology" function of the national land space standard regional evaluation unit is evaluated,and the "ecology,ecology,ecology" function evaluation value of each standard regional evaluation unit is obtained.In order to more intuitively express the strength of the spatial function of Anning City,the function value of each evaluation unit in the evaluation result is divided into 4 levels,which are low,low,high,and high respectively,get the functional strength and weakness level of each evaluation unit.(3)Comprehensive functional zoning of territorial spaceBased on the evaluation results of the national land spatial production function,this paper chooses the comparative advantage index method to study the national land spatial production function.According to the principles,objectives and naming methods of comprehensive functional zoning of land and space,the functions of land and space in Anning City are divided,which provides a theoretical basis for the formulation of land and space policies in the study area.The results of the study show that the study area can be divided into five major functional areas:1.The main urban living function area: the main carrying area public service facilities,the population density is relatively high,the level of urbanization is high,and the living facilities are complete;2.Eastern production Living function zone: the eastern part has good terrain and excellent conditions,rich construction land and agricultural land resources,less difficulty in development and utilization,and superior economic development conditions;3.Western production function zone: the western production function zone is the industrial center of Anning City,strengthened Industrial innovation,promote the transformation and upgrading of industrial functions,guide the adjustment of industrial structure,and promote the balanced development of north and south;4.Southern ecological production function zone: The southern ecological production function zone has extensive vegetation coverage,rich animal and plant resources,and high ecosystem service value;5.Northern Ecological production functional area: The northern ecological production functional area has high vegetation coverage,large water area,good air quality,rich tourism resources,numerous scenic spots,beautiful natural mountains and rivers,unique history and culture,and strong ethnic customs.To achieve the coordinated development of various functional areas,each functional area and land space type,corresponding area optimization strategies and implementation suggestions are proposed.