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.

Research on the formula of pollution-free non-ion surfactant fountain solutions;

The discussion on early evaluation method of coalbed methane exploration area;