Study On The Evolution And Simulation Of Ecosystem Service Trade-offs And Synergy In The Transnational Area Of Changbai Mountain

The transnational area of changbai mountain mainly include southeastern Jilin Province,northeastern DPRK,Hasan region and Vladivostok in Russia,and are an important part of the"China-Russia-DPRK-Mongolia" international channel in the "Belt and Road"strategy and the key development and opening up at the national level The area is also a national key ecological function zone and water conservation conservation zone.However,with the continuous development of the social economy,the intensification of human activities has caused changes in land use/cover in The transnational area of changbai mountain,which has led to changes in ecosystem services,and the trade-offs and synergies have also changed.The intensification of human activities has caused tremendous changes in the natural environment.How to promote economic development while maintaining the natural ecological environment of the region has become an important issue facing sustainable development in the region.To this end,based on the land use data from 1995 to 2015,this paper refers to Xie Gaodi’ s value equivalent method to calculate the value of ecosystem services from 1995 to 2015,and uses the ESTD model to evaluate the trade-offs and coordination of various ecosystem services from 1995 to 2015.The evolution process of the relationship,and evaluate the difference in the trade-off coordination relationship at the partition scale.The FLUS model is used to simulate the spatial pattern of land use on the three sides of China,North Korea and Russia in 2035.Calculate the value of ecosystem services in 2035 based on the land use data in 2035,and then calculate the trade-off synergy of each ecosystem service from 2015 to 2035 and evaluate the difference in trade-off synergy at the partition scale.Finally,based on 1995-2015 and 2015-2035 trade-offs and synergy changes,the attribution analysis of ecosystem service trade-offs and synergy changes was conducted,and corresponding countermeasures were provided for the sustainable development of The transnational area of changbai mountain.The main findings are as follows:(1)From 1995 to 2015,each ecosystem service relationship was dominated by synergy relationships,and the evolution of its trade-offs and synergy relationships became more obvious over time,especially the most obvious changes in food production services,water supply services,and hydrological regulation services.From the perspective of zoning scale,the difference between food production services,water supply services,and hydrological regulation services is the most obvious in Chinese side,DPRK’s side and Russian side.(2)Calculating the spatial pattern data of land use of Chinese side,DPRK’s side and Russian side in 2035 based on the FLUS model.The composition of land use types in 2035 is basically the same as that in 2015,but from the perspective of land use changes,the land use changes from 2015 to 2035 are larger than those from 1995 to 2015.(3)From 2015 to 2035,the relationship between ecosystem services is still dominated by synergy.However,Chinese side,DPRK’s side and Russian side differ greatly in the trade-offs and synergy between water supply services,and hydrological regulation services.(4)Among the reasons for the changes in the trade-offs and synergies between Chinese side,DPRK’s side and Russian side,the conversion between cultivated land and forest land is one of the reasons for the existence of Chinese side,DPRK’s side and Russian side.In addition to the impact of the conversion between cultivated land and forest land on the Chinese side,the expansion of urban land is also one of the important reasons for the changes in the ecosystem service trade-off synergy relationship,while the Russian side of the forest-grass conversion is the ecosystem service trade-off synergy One of the important reasons for change.(5)According to the reasons and development policies of the changes in the coordination of the ecosystem service trade-off between Chinese side,DPRK’s side and Russian side,providing development advice suitable for different countries is an important measure to achieve sustainable development in the region.The Chinese side should pay attention to the problem of urban expansion,and the contradiction between the cultivated land and forest land should also formulate corresponding policies;The loss of woodland.The contradiction between the forest and grass on the Russian side is more serious.An ecological protection zone or ecological red line should be established reasonably,and the balance between forest and grass should be artificially intervened.