Abstract

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Author(s):: JIA Zhi-gang ; Shool of History, Northwest University, Xi’an 710069, Shaanxi, China

Keywords:: Sui and Tang Chang’an city; natural disaster; greening tree; management institutions; greening awareness

Abstract:: In order to cope with various adversities in greening of Sui and Tang Changan city, related historical data including offical history, sketches, and travel notes were analyzed. The results show that the factors which destroy and strike the green trees and green system of Chang’an city are not only the natural disasters including windstorm, rain and snow, icefreezing, and insect pests, but also manmade damages including war, and vandalism. In terms of solutions,the departments which take charge of greening and maintenance are departments including director of Yu departement, the lord mayor, Sinongsioffice of imperial park,director of Jingduyuan, Simianjian, left and right overseeing administrative department and Jinwuwei; officals and intellectuals decide to plant locust tree, elm, willow and aspen and cultivate orchards including pear orchard, apricot orchard and pomegranate after discussion about the green trees in Changan city, constructing the greening system with ornamental value and edible value for Changan city. In the fights with various natural and manmade disasters, the environment awareness and greening consciousness are improved.