Research On Ecological Scenario Simulation Analysis Of Regional Logistics Transportation System Based On Emergy

Under the background of the current epidemic,the demand of express logistics industry is increasing,which drives the steady development of China’s logistics and transportation industry.However,the continuous increase of energy consumption in logistics and transportation industry leads to resource waste,environmental pollution and ecological imbalance.These problems have become an important factor hindering China’s coordinated development of resources and envir onment.In fact,excessive energy consumption directly leads to increasingly prominent regional environmental problems.The development of ecological logistics transportation has become a new trend of China’s logistics industry.In this environment,ration al planning of ecological sustainable development of logistics transportation system has become a topic worthy of attention in regional logistics.Realizing the emission reduction and carbon reduction of logistics transportation industry can not only improve the efficiency of resource utilization and protect the natural ecological environment,but also be conducive to the construction of ecological civilization of regional logistics.This paper discusses the ecological scenario simulation strategy of regio nal logistics transportation system from the perspective of the combination of logistics transportation system and ecological economic system.Firstly,from the perspective of regional logistics and transportation system,this paper expounds the developmen t status of logistics and transportation industry from the aspects of physical and geographical conditions,economic development and transportation network development.The energy source and flow path of the regional logistics transportation system are depicted in the energy system diagram.We calculate renewable resources,non renewable resources,economic feedback input and output emergy and other relevant elements.Secondly,the emergy index system of logistics transportation industry,including renewable emergy ratio,emergy investment rate,environmental load rate and emergy sustainability index,is constructed as the output variable of the dynamic simulation model of logistics transportation system in Qinghai Province.Then,the causality diagram is drawn according to the relationship between the internal factors of the system.Based on the relevant data of logistics and transportation activities in Qinghai Province,the relationship between variables is quantitatively expressed by formula,and the flow stock diagram of the region is drawn in combination with vensim-ple software.Finally,from the perspective of transportation structure,energy consumption structure and economic development speed,we set up single strategy,combination strategy and comprehensive strategy to simulate and predict the model.We form a comparative analysis diagram of different simulation scenarios under the three strategies,and put forward targeted development suggestions according to the simulation effect.The dynamic scenario simulation framework based on emergy flow can provide a reference for the green development of logistics transportation system in other regions.