Supply-flow-demand Assessment Of Cultural Ecosystem Services In Recreational Green Space In Xiangyang

Urban recreational green spaces are an important part of the urban ecosystem and can provide rich cultural ecosystem services to urban residents.With the increase in urban population,residents’ demand for cultural services is growing rapidly,and the contradiction between the level of cultural service supply and residents’ demand for cultural services in urban recreational green spaces has become an important limiting factor affecting human well-being.The relationship between supply and demand for cultural services is becoming a hot topic in the field of ecosystem research.This study takes the supply and demand of cultural services in the ecosystem as a starting point,and takes the city of Xiangyang as a research area.The results of the study can provide reference for the resource allocation and spatial layout planning of the study area.(1)The study has constructed an ecosystem cultural service supply assessment index system to quantitatively assess the potential supply of cultural services in recreational green spaces.The results show that the potential supply capacity of cultural services in Xiangyang is highest in the central city and gradually decreases in the periphery.The differences in the distribution of the various types of cultural services show that the highest potential supply capacity for leisure,aesthetic and spiritual services is concentrated in the central and northeastern parts of Xiangyang,while educational services are concentrated in the central and southwestern parts of Xiangyang.(2)By surveying the travel intentions of Xiangyang residents,the actual supply capacity of cultural services in Xiangyang was assessed by analysing the range,direction of movement and flow of cultural services based on four modes of travel.The results of the study show that Xiangyang residents mostly use walking(52.40%)and driving(18.99%)to reach green areas,and the maximum acceptable travel time for most people is 30min(44.13%)and 15min(32.11%),so four modes of travel were set: walking 15 min,walking30min,driving 15 min and driving 30 min.travel modes.The spatial distribution of the actual provision of ecosystem cultural services under the four different service flow modes varied,with 13.7% of villages or communities being able to provide actual cultural services under the 5min walking mode and 19.2% under the 10 min mode;under the driving mode,72.4% and 95.2% of villages or communities had the ability to provide actual cultural services under the 5min and 10 min cases respectively.In the 5min and 10 min modes,72.4%and 95.2% of villages or communities had the capacity to provide actual cultural services.Under the same service flow model,the provision of leisure,aesthetic and spiritual services was higher in central and eastern Xiangyang,while educational services were higher in central and western Xiangyang.For the spatial autocorrelation of the actual supply of cultural services,the high-high agglomerations of leisure,aesthetic and spiritual services are mainly located in the central city and the eastern part of Xiangyang,while the high-high agglomerations of educational services are mainly located in the central city and the western part of Xiangyang,while the high-high agglomerations of all four types of cultural services are mainly located in the central city of Xiangyang in the driving mode.(3)The final results of the cultural service demand assessment of Xiangyang residents show that at the village level,the areas with the highest demand are mainly in the central city,Zaoyang city,Laohekou city and Yicheng city;at the town level,the areas with the highest demand are in the central city,Zaoyang city,Laohekou city,Gucheng county,Nanzhang county and Yicheng city.At the village-level scale,the high-high aggregation areas of cultural service demand are mainly located in the central urban area as well as the urban areas of the districts and counties,and at the town-level scale,the high-high aggregation is mainly located in the central urban area.(4)The results of the supply-demand matching feature show that the low supply-high demand areas include a total of 16 towns and streets such as Xianyang Street,Shihua Town and Chengguan Town,while the high supply-low demand areas contain 12 towns and streets such as Huangji Town and Huopai Town.The final recommendations for optimising the resource allocation and spatial distribution of recreational green spaces are based on three aspects: improving the actual level of supply of cultural services,satisfying demand,and optimising the match between supply and demand.