Land space is the space carrier of ecological civilization construction.Optimizing land space pattern is an important content of ecological civilization construction.At present,under the severe situation of disorderly land development and destruction of ecological environment,it is particularly important to optimize the land pattern.The traditional bottom line protection thinking with "ecological red line" as the main body has been difficult to solve the complex eco-environmental system problems.Therefore,we need to change from bottom line thinking to preventive thinking,and build a resilient ecological protection space to effectively improve the protection ability of land ecological space.From the perspective of ecological space priority,with the purpose of land space allocation,taking Sansheng space as the main body,using the methods of tripartite evolutionary game and bas intelligent search algorithm,and focusing on the optimization of land space allocation,this paper explores the construction of Sansheng space decision game payment matrix based on Sansheng space competition.Through the simulation analysis of replication dynamic equation,Quantify the evolutionary stability point of the game subject under different benefit boundaries,and combine the bas algorithm with the spatial decision analysis with the "spatial grid" as the basic decision-making unit to obtain the final optimal allocation of land under the resilient ecological space of Tianjin.First,through the analysis of the spatial layout and evolution characteristics of three life in Tianjin,it is concluded that the current problem of Tianjin is to continue to develop the two city strategy under the principle of ecological priority and ecological protection.Strengthen the environmental protection of the system design of "landscape,forest,field,lake and grass",connect with the ecological planning and construction system of Beijing,Tianjin and Hebei,strengthen the intermodal transport of the space environment of North-South ecological planning and construction activities,build a green ecological protection barrier and an ecological planning and construction activity space environment of lake scenery,and form "three zones,two belts,seven corridors,five lakes and four wetlands" Ecological planning,construction and guarantee layout of the city.Second,this paper uses the tripartite evolutionary game model to analyze the evolutionary game boundary stability point of the optimal allocation of Sansheng space in Tianjin,considers the ecological red line warning line and ecological space aggregation under the principle of ecological priority,and analyzes the local benefit output boundary and local evolutionary game stability point under the influence of road network traffic,Get the optimal allocation map of Sansheng space in Tianjin.Third,combined with the optimal allocation scheme of Sansheng game,the ecological space grid is combined with the resilience index accounting model,and the resilience ecological space is optimized based on BAS intelligent optimization algorithm.With the help of GIS platform,the distribution map of resilience ecological space in Tianjin with ecological stability is obtained. |