湖北林业科技

The result of test shows: afforestation survival rate raise by 30%, trees height growth raise by 1.6~6.0 times in autumn comparing with planting in spring in northwest of Hubei province, the difference is remarkable; survival rate is different between planting in mid-autumn and late autumn according to different tree species, survival rate of coniferous tree such as Pinus elliottii engelm and Couninghamia LanceoLata change less in mid-autumn than in late autumn. Meanwhile, survival rate of broad leaf tree such as Robinia Pseuidoacacia and Hippophae Rhamnoides raise obviously higher in late autumn comparing with mid-autumn. Therefore,selects suitable afforestation time based on different tree species in northwest of Hubei province, especially plant broad leaf tree in mid October shows the best result and planting coniferous tree can be done in mid-September.