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檫木人工造林历史较短,但实践证明,即使是在自然条件较差的丘陵区,檫木人工造林效果也是好的。例如,安乡县黄山头林场丘陵山地上的13年生檫木(每亩初植74株,现在每亩保存57株),平均胸径15.6厘米,平均树高14.2米,每亩立木蓄积7.08立方米。省林科所低丘红壤上13年生的檫木(每亩初植107株,造林后四年起陆续间伐,现在每亩保存66株),平均胸径13.9厘米、平均树高12米,每亩立木蓄积6.39立方米。这二块檫林整地质量及抚育管理都属一般,而单位面积上的
Alder plantation has a short history of afforestation, but practice has proved that even in poor natural conditions in the hilly area, Alnus afforestation effect is good. For example, the 13-year-old alder (74 plants per acre, now 57 per acre) on the hillside of the forest farm in Huangshantou, Anxiang County, with an average diameter of 15.6 cm and an average height of 14.2 meters, accumulates 7.08 cubic meters per mu . The 13-year-old Alnus crest on the hilly red soil in the province Linco (107 plants per acre, after four years of afforestation, successive thinning, now 66 per acre), the average diameter at breast height of 13.9 cm, the average tree height of 12 meters per mu Stumpage accumulation of 6.39 cubic meters. The two Zhelin leveling quality and tending management are general, and the unit area