Study On The Landscape Quality, Landscape Pattern And Its Sustainable Utilization Of Green Space System Of Asia Europe Expo Exhibition

In order to comprehensively analysis the internal structure, physical characteristics and spatial distribution and other aspects of the exhibition space system. Firstly, the paper used the analytic hierarchy process to construct the target layer, criterion layer and index layer evaluation model, evaluated and analyzed 34 sam- ple plots landscape by using the evaluation indexes that grater impact on the landscape. According to the evaluation results to determine the level of landscape.Secondly, by using the principles of landscape ecolo- gy and landscape pattern index, analyzed the landscape pattern of exhibition and the surrounding green pa- tches. Finally, by using the method of literature and case analysis and referring to experience of the exhibi- tion space at home and abroad, discussed the approaches of the subsequent use of exhibition space and the ways of sharing mechanism with city large green. The main results and conclusions are as follows:(1)Using the analytic hierarchy process to evaluate the exhibition green space system found that the road green space has low plant species richness,few species of native tree species, relatively poor plant health status and unreasonable plant configuration in some green space.Square landscape effect is relatively poor, some green plant configuration are messy and Incompatible with the environment of exhibition square. Although the roadside green landscape of exhibition and red light mountain road have higher plant species richness,the native plant utilization rate is low.They are lack of high ornamental trees and shrubs,part of green community are even scrambled.According to the landscape level distribution,47.05% of the green landscape of unqualified,the qualified mainly are below 70% of the ideal value,the overall quality of green landscape is low.(2)According to the calculation result of landscape pattern index and the relevant data analysis,large vari- ances is in exhibition center and the surrounding green patch area, patch spatial distribution is not reasona- ble,connectivity between patches is poor. Among them, the road, square and affiliated green space have unsatisfactory value in landscape diversity, dominance and evenness and other aspects,the landscape hete- rogeneity is relatively low.The road and square green space have the highest degree of patch fragmention, and most green patch area are small. The park, landscape and protective green space patches have bet- ter connectivity and higher landscape heterogeneity.(3)Based on the analysis of the green landscape quality and landscape pattern,Afford a concept that the exhibition space is the core,connecting the surrounding green patches and corridors to form the ecological network system.