Study On The Zoning Of The Production-living-ecological Functions

Land is an important material basis for the survival and development of human beings.In order to satisfy their own interests,people are unrestrained to get land resources from nature,which has made problems such as man-land relationship tense,space development disorder and spatial structure imbalanced.The zoning of the production-living-ecological function makes every effort to solve a series of regional problems brought by the rapid development,improve the overall competition level of land space,while preserving the diversity of land space,and implementing the differentiated management of land space.At present,the study on the zoning of the production-living-ecological function in China is in its initial stage.Most of the qualitative studies on the classification of the production-living-ecological space are based on the macro-scale land use planning,and lack the support of high-precision basic data.The accuracy of the classification results r to be investigated.Based on the census of geographical conditions and relied on the comprehensive statistics and analysis project of national geographical conditions,this paper used high accuracy data obtained from the census,and selected Chongqing as the study area.Qualitative and quantitative methods were used to classify and evaluate the production-living-ecological space,so as to realize the zoning of the production-living-ecological function of national space.The research results can serve the implementation of land spatial planning and related policies in Chongqing,and provide important reference for the development of other regional planning(zoning)work,and promote the popularization and application of the survey results of geographical conditions.The main contents of this paper are as follows:(1)The classification of the production-living-ecological spaces of land.This paper studied content and indicators of the census of geographical conditions,clarified the features of production,living and ecological functions of land space,built the classification system of the production-living-ecological space based on geographical national census,and divided land space into 7 categories.Then the kernel density method based on grid was proposed,and the spatial pattern of various land was analyzed by this method.(2)The evaluation of the production-living-ecological function.This paper integrated the other professional department survey data and social economic statistic data,and built the evaluation index system of the production-living-ecological function based on production,living and ecological functions.This evaluation system contained 25 evaluation indexes.The county administrative region was selected as standard regional evaluation unit,and the production-living-ecological function of evaluation unit was described as a percentage.Then,the production function,living function and ecological function of each standard regional unit were evaluated by BP neural network model.(3)The zoning of the production-living-ecological function.This paper used the double-constrained clustering analysis method to cluster the standard regional evaluation units,and revised the results according to expert opinion,and realized the zoning of the production-living-ecological function areas.Taking Chongqing as an example,it was divided into 6 functional areas,and the present situation and future development direction of each functional area were analyzed comprehensively.