| Under the background of new-type urbanization and urban-rural coordinated development,the mode of land and space development has changed from production space to production space,living space and ecological space("Production-Living-Ecological"space),in order to solve the disorder of land development order and resource and environment problems brought about by rapid economic development and social transformation,and to promote regional sustainable development.Taking Wudi County in Shandong Province as an example,this paper explores the functional positioning and classification system of"Production-Living-Ecological"Space in the Yellow River Delta region.The remote sensing images of 1997,2007 and 2017 are interpreted by object-oriented method using ENVI software,and the spatial distribution map of"Production-Living-Ecological"Space is extracted accurately.The spatial dynamic evolution characteristics of Sansheng are analyzed by using ArcGIS and Fragstats software,and evaluated by multi-factor comprehensive evaluation method.Price"Production-Living-Ecological"Space suitability,facing the"Production-Living-Ecological"Space demand,put forward"Production-Living-Ecological"Space optimization program.The main conclusions are as follows:(1)The spatial dynamic evolution characteristics of"Production-Living-Ecological"Space in Wudi County are analyzed.From 1997 to 2017,the area of production and living space in Wudi County changed most intensely,and the transfer types were mainly transferred to other areas.Agricultural production space has always been the main spatial type of Wudi County,accounting for more than 50%of the total area of the study area.The degree of fragmentation of spatial landscape is serious and showing an upward trend,and the regularity of landscape spatial shape is not strong;the degree of fragmentation of living space is more serious and the degree of fragmentation is not strong.There is an upward trend in the early period(1997-2007),and a stronger trend in the late period(2007-2017).The overall ecological space area shows a downward trend,mainly showing the decline of grassland and other ecological space.The degree of fragmentation of ecological space is higher in the early period.With the emphasis on ecological space,the degree of fragmentation declines slightly in the later period,and the spatial landscape.Rules are also gradually strengthened.(2)The Spatial Suitability of"Production-Living-Ecological"Space in Wudi County was evaluated.Wudi County has the largest proportion of general suitability in production space,the most suitable area for agricultural production and the more suitable area for spatial distribution are scattered;the most suitable areas for living space are characterized by centralization in the urban center,and the distribution of more suitable and general suitable areas is scattered;the most suitable and more suitable areas for ecological space account for a larger proportion of the area,and all townships have distribution,and the distribution of more suitable areas is close to each other.The outer side of the most suitable area is circular distribution;the general suitable area of ecological space tends to be centralized and fragmented;the unsuitable area is also centralized,centralized in Chengkou Town and Mashanzi Town in the northeast.(3)The space optimization scheme and suggestions of"Production-Living-Ecological"Space are put forward.The overlapping analysis of the spatial status and suitability evaluation results of"Production-Living-Ecological"Space shows that the living space,ecological space and agricultural production space in Wudi County are mostly in the most suitable and suitable areas,and the industrial production space is mostly in the more suitable and general suitable areas.In order to meet the needs of living and production space in Wudi County in 2022,some"Production-Living-Ecological"spaces are optimized and adjusted,2906.67hm~2production space was adjusted to ecological and living space,2724.25hm~2 ecological space to production and living space,3837.06hm~2living space to ecological and production space.In the future,the ecological space of Wudi County should be mainly protected,and the relationship between development and utilization should be well balanced,so as to promote the integration of ecology and productive living space.Living space should take land renovation as a means to strengthen its degree of agglomeration,rationally layout and improve living convenience;production space should be optimized and adjusted to achieve large-scale management,while developing multi-functional agriculture in the form of ecology,tourism and other forms according to local conditions.This paper discusses the spatial dynamic evolution characteristics of"Production-Living-Ecological"Space in the Yellow River Delta and puts forward the optimization scheme.The research results can provide reference for Wudi County and the Yellow River Delta region to optimize the"Production-Living-Ecological"Space and promote intensive land use and sustainable development. |
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