Ecosystem Cultural Service Evaluation And Simulation Research Based On System Dynamics

Cultural ecosystem services are important services that ecosystems provide to humans.It is defined as the non-material benefits that people derive from ecosystems through spiritual enrichment,cognitive improvement,ideology inspiration,entertainment,and aesthetic experiences.It is often considered the core of human well-being and is often at the heart of ecosystem protection.It is therefore important to assess cultural ecosystem services and to improve our knowledge of the interactions between society and ecosystems,as well as potential well-being.The cultural ecosystem itself is a complex system in which each element is directly or indirectly connected.Changes in one element of the system may cause changes in other elements,which in turn lead to changes in the overall system.Therefore,the introduction of systematic analysis into its research and the study of its development and evolution process have important theoretical and practical significance for research.The research contents of this paper mainly include:(1)Evaluation and analysis of Xi'an Cultural services.The quantitative evaluation of cultural ecosystem services in Xi'an mainly uses the SoIVES model and uses the maximum entropy model to calculate the results of the questionnaire.Combined with the environmental background values and the results of the questionnaire statistics,the value index map of cultural services is finally generated.(2)Established a system dynamics model of the cultural service system in all districts and counties of Xi'an.By introducing the system dynamics model,construct a causal relationship circuit diagram in line with Xi'an cultural ecosystem service,and determine the key variables in each system according to the idea of zone control.On this basis,establish the system dynamics flow of each administrative region.The graph and equations simulate the development trajectory of Xi'an cultural ecosystem service.(3)Simulation of cultural services in various districts and counties of Xi'an under different development scenarios.According to the research purpose of this paper,four development scenarios for the future development of various regions in Xi'an are used to simulate and predict the dynamic changes of cultural services in 2030.Conclusions can be drawn according to this study:(1)The hotspots of Xi'an's aesthetic value are concentrated in the main urban areas.The value of roads,water bodies and green areas will form higher than the surrounding high-value areas,and radiate outwards,with strong radiation capacity.Most of the junctions between the southern part of Xi'an and the northern part of the Qinling Mountains are cold spots,with high-value points only in the roads and nearby small areas.(2)The relatively high value areas of historical value are more extensive than the aesthetic value,and are densely distributed in the high-value areas of the adjacent urban areas.But the highest value is less than the highest value of aesthetic value.No high value points were formed in some water and green areas.(3)The hotspot area of entertainment value forms a high-value area on the road and its vicinity and radiates outward,and the radiation range is smaller than the aesthetic value.Compared with the aesthetic value,it fails to form high-value areas in rivers and green areas,but forms hot spots in the areas nearby.(4)The economic development of various districts in Xi'an has achieved the fastest growth under the economic priority scenario.The change in green area of each district achieved the fastest increase in environmental protection scenarios The study found that in the case of coordinated development and environmental protection in different zoning,generally higher cultural services can be achieved,while cultural services under natural development scenarios are lower,while cultural services with different zoning economic priority scenarios big change.Selecting economic-priority development scenarios in areas with lower economic levels can achieve cultural service development outcomes similar to the choice of-coordinated development and environmental protection,and also maintain a relatively high rate of economic growth.This paper obtains the value of cultural services through the SolVES model through social survey data and environmental index data obtained through field surveys.Through the analysis of the factors related to the value of each cultural service,the constituent elements and system boundaries of each subsystem of the cultural service system are clarified,and the causal loop diagram and system flow diagram between the various elements are drawn.The dynamic model of cultural service system of various administrative divisions in Xi'an was established,and four different development scenarios of natural development,environmental protection,economic priority and coordinated development were set up to carry out the dynamic changes of cultural services in the next 2030 years.Try to explore the application of system dynamics in different fields.At the same time,the research results can provide guidance for the formulation of regional policies and improve the system of ecological civilization construction in practice,so as to achieve the future development of economic growth and ecological civilization,and achieve the goal of sustainable development in the future.