Survey and Discussion of Town Garden Tree Species in Altay Area of Xinjiang
Abstract
Taking representative counties in Altay as examples,the selection,evaluation and planning of tree species had been overall investigated.The results showed that Altay gardens had 113 green species,including 64 trees species,47 shrubs species and 2liana species,mainly Rosaceae and Salicaceae,the ratio of trees and shrubs was 1.36∶1.00,the ratio of evergreen and leaves species was 1.0∶9.3.There were 38 species common trees and shrubs in Altay;gardens green species had a little difference in different green spaces,the performance of native species were better than introduction species,evergreen species were better than deciduous species,trees were better than shrubs.The overall growth of most tree species were in accordance with local;the basis species in Aletai region were Betula pendula,Ulmus round Crown,Fraxinus rhynchophylla,Salix alba L.and Ulmus pumila L.,while the backbone tree species should be planed according to the green space.