| Regional construction and development cannot be separated from the scientific arrangement of land spatial pattern.The efficient utilization of production space,living space and ecological space(hereinafter referred to as "Production-Living-Ecological" space)resources has a comprehensive and complex impact on the regional ecological environment and social economy.Based on the above background,this paper takes Kunming as the empirical research object,and takes "exploration of the existing problems of" Production-Living-Ecological " space-Optimization of spatial quantitative structure-Optimization of spatial layout-optimization results of multi-scale analysis" as the logical main line of the full-text analysis,and gradually carries out the relevant Research on the optimal allocation of "Production-Living-Ecological" space in Kunming.First of all,divide the "three living" space by constructing the classification system;Secondly,it explores the spatial structure layout of "Production-Living-Ecological" space in Kunming,and reveals the pattern characteristics and existing problems of its spatial function;On this basis,the mop model is introduced,and three optimization scenarios are set with 2030 as the target year to form three schemes for the optimization and coordination of "Production-Living-Ecological" space in Kunming,and the NSGA-Ⅱ algorithm and lingo software are used to gradually solve the optimization results of "Production-Living-Ecological" space quantitative structure in the multi scenario;Using the flow model to select a variety of driving factors to simulate and obtain the optimization results of the spatial distribution of "Production-Living-Ecological" space under three scenarios;Then,using FRAGSTATS software,multidimensional econometric model and GIS spatial analysis method,the optimization results of the three scenarios are studied and compared from the two scales of landscape pattern and functional pattern;Finally,the WebGIS technology combined with GIS and Internet is used to develop the spatial visualization system of "Production-Living-Ecological" space in Kunming,so as to realize the visualization and informatization of "Production-Living-Ecological" spatial management in the Internet environment.The main research contents and conclusions of this paper are as follows:(1)According to the classification system,delimit and explore the current "Production-Living-Ecological" space in Kunming.It is concluded that the problems existing in the "Production-Living-Ecological" space pattern in Kunming in 2020 are:(1)the total land use of the "Production-Living-Ecological" space is not balanced;(2)the utilization function combination of the "Production-Living-Ecological" space is single;(3)the differentiation of the "Production-Living-Ecological" spatial utilization structure is obvious,and the social,economic,ecological and other elements are not closely linked.(2)Build mop model,Setting up three optimization scenarios for"Production-Living-Ecological" space in Kunming "Optimize the spatial quantity structure.The results show that: the economic benefit value of scenario 1 increases by 3.81% compared with scenario 2,but the ecological benefit value is the lowest;the ecological benefit in scenario 2 increases by 1.17% compared with scenario 1,but the economic benefit is low;in scenario 3,the economic benefit increases by 3.34% and the ecological benefit increases by0.35%.The economic benefit and ecological benefit of this scenario are optimized at the same time,so as to realize the common development of economy and ecology,stable and coordinated development.(3)The results show that: scenario 1: the large increase of living space and production space leads to the occupation of ecological space development,and the development of urbanization takes the weakening of ecological environment as the cost;In scenario 2,the ecological environment is protected,but at the same time,the production and living space of residents is relatively fragmented,which is not conducive to the economic development of the district;In scenario 3,the living space is expanded by 17.14%,the production space is expanded by 0.35%,and the area of ecological space is reduced by 1.94%.The vast majority of ecological land can be completely retained.On the premise of not affecting the construction of ecological environment,the development of urbanization is accelerated,the ecological life production space is balanced,the space structure is optimized,and the space utilization efficiency is improved.(4)After using FRAGSTATS software and multidimensional econometric model to compare and analyze the optimization results of three scenarios of "Production-Living-Ecological" space,it is found that the development of "Production-Living-Ecological" space in scenario 1 and scenario 2 is unbalanced and highly disturbed.In scenario 3,patch types are distributed in a balanced trend in the landscape.At the same time,the diversity of land space in this scenario is more ideal,and the functional structure of land space is richer.The agglomeration degree of spatial functional structure is also higher.Scenario 3(coordinated development of ecology and economy)achieves the goal of optimizing and coordinating the land space of Kunming,maximizes the overall comprehensive benefits,optimizes the spatial distribution pattern of "three health" and enriches the ecological process and pattern structure,so as to provide decision-making reference for the subsequent coordination of economic and ecological development of Kunming.(5)Using key technologies such as WebGIS and Arc GISServer,and taking Java as the development language,the "Production-Living-Ecological" spatial visualization system in Kunming is developed and realized.The system has the main functions of user management,"Production-Living-Ecological" spatial classification,supervision and management,display and query,realizes the real-time dynamic update of the "Production-Living-Ecological" spatial basic information data,and provides the "Production-Living-Ecological" spatial information display platform. |
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