Adopting different transformation ways,the result indicated that the way of wide-band fell was good,and the survival rate of broad-leaved trees was high,and the growth of young forest was fast,which was suitable for heliophilous trees,strong-heliophilous trees and neuter partial to heliophilous trees.

Taking the Jianghan first Bridge in Wuhan city as example,aiming at the current existing main diseases of this bridge,the author introduces the main reinforcement and reform methods according to the different part diseases of the bridge,and describes the main technology adopted in the bridge reinforcement and maintenance scheme,so as to accumulate experiences for the reform of similar bridge.