Effects of Different Varieties and Management Measures on Growth of Paulownia Trees
To screen the most suitable varieties of Paulownia and the best management measures for planting in the hilly areas of Hubei Province.The three factors were used to study the effects of different varieties,density,afforestation model and their interaction on the growth of Paulownia trees in the Huzhao Mountain Forest Farm of Jingshan City,Hubei Province.The results showed that:①Varieties had the greatest effect on the growth of Paulownia trees,and the variety of'Zhongtong 1st'(C1)showed the best performance among all varieties,followed by the variety of'01-23'(C3).②The growth of Paulownia tree gradually tends to be the same among different afforestation density and afforestation models,and the growth index has no significant effect,with the increase of forest age.At the young stage,different afforestation densities,afforestation models,varieties and their interaction effects had significant differences on DBH and individual volume growth of Paulownia,among which varieties had the largest effect on the growth of Paulownia with extremely significant differences(P＜0.01).But with the growth of standing age,only the afforestation density and afforestation model showed strong interaction effects.Taking all factors into consideration,the varieties of C1 and C3 can be preferen-tially selected for promotion and planting in the hilly areas of Hubei Province.
万方数据
维普
