Research On Spatial Differentiation And Reconstruction Of “Production-Living-Ecological” Space

Since the reform and opening up,China has made remarkable achievements in the construction of urbanization,but in the process of land transformation and utilization,it inevitably faces the contradiction and conflict between the construction of ecological civilization and the imbalance of social and economic development.The fundamental reason lies in the increasing demand for urban and rural construction land and the increasing conflict between agricultural land and ecological land.Therefore,it is urgent to optimize the land space We should strengthen the construction of ecological civilization.Taking Wu’an city as the research area,this studies from four aspects:the current situation of“Production-Living-Ecological”Space,thesuitabilityevaluationof“Production-Living-Ecological”Space,the prediction of“Production-Living-Ecological”Space scale,and the reconstruction of“Production-Living-Ecological”Space.The main research contents and conclusions are as follows（1）This paper expounds the concept of“Production-Living-Ecological”Space,identifies the multi-functional attributes of land,constructs the land use classification system of“Production-Living-Ecological”Space in Wu’an city by using the land use type merging method,and divides the“Production-Living-Ecological”Space in Wu’an city according to the classification system.In terms of structure,the“Production-Living-Ecological”Space in Wu’an city is mainly ecological space,followed by production ecological space and production space,which is quite consistent with the land use structure of"five mountains,half water and three fields"in Wu’an city.In the spatial pattern,the spatial distribution of“Production-Living-Ecological”Space in Wu’an city is scattered and staggered,showing the characteristics of partial concentration and overall scattered.（2）By comprehensively selecting the natural,human and ecological factors,this paper constructs the evaluation index system of the Spatial Suitability of“Production-Living-Ecological”Space in Wu’an city,uses the analytic hierarchy process to determine the index weight,and uses the multi factor comprehensive superposition method to determine the suitability evaluation results of production space,living space,ecological space and production ecological space.The results show that the suitable ecological space for production,living and production in Wu’an city is mainly distributed in the central and eastern regions,and the ecologically important areas and generally important areas are mainly distributed in Guantao,Huoshui,Yangyi in the northwest of Wu’an city and Majiazhuang in the southwest of Wu’an city.（3）Based on the grey multi-objective programming model,the spatial scale of“Production-Living-Ecological”Space in 2035 is predicted.The paper uses the gold programming module of WINQSB software to solve the model,and the scope of production space demand is determined as 10616.18-15302.68 hm^2,the scale of demand for living and production space is 13529-13574hm²,the scale of ecological space demand is81457.8-85620.45hm²,and the scale of production ecological space demand is71516.52-72040.40hm².（4）According to the results of suitability and scale prediction,and based on the current situation,the“Production-Living-Ecological”Space of Wu’an city is reconstructed.After reconstruction,the scattered distribution of“Production-Living-Ecological”Space has been significantly improved.The living and production space is mainly distributed in the townships（towns）in the central and eastern regions,while the living space in the western mountainous areas is reduced in a large area;After reconstruction,the villages（towns）that are not suitable for production and living,such as Guantao and living water,are mainly ecological space.After reconstruction,the“Production-Living-Ecological”Space in Wu’an city is still dominated by ecological space.Although the living and production space is not completely connected in the city,the degree of connection in each township has been improved.