Ornamental Evaluation of Landscape Trees in Hulunbuir Based on AHP
Through the field investigation of common landscape trees in Hulunbuir.Five target layer factors-appearance,branches and leaves,flowers,fruits and ecological adaptability,and 20 standard layer evalua-tion factors were selected to establish a comprehensive evaluation model of ornamental landscape trees.The com-prehensive ornamental evaluation of landscape trees was carried out by using Analytic Hierarchy Process(AHP).The results showed that:①The order of weight of each constraint layer to the target layer in the evalua-tion model was flower>fruit>appearance>branches and leaves>ecological adaptability.② Among the 20 standard layer evaluation factors,flower color,canopy shape,fruit color,flowering time and full blooming days varied greatly.③There were 5 species selected for grade I(Y>3.5)for comprehensive ornamental evaluation,which were Sorbus pohuashanensis,Malus micromalus cv.Ruby,Malus'Royalty',Malus micromalus,Rhus typhina.
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