人工杉木林抚育间伐模式研究

Research on the Intermediate Felling Model of Planted Cunnighamia lanceolata

杉木是我国南方林区造林的主要树种。通过对不实施、2次、3次抚育间伐试验模式研究表明,采取3次抚育间伐能较好地促进人工杉木林生长,其平均胸径、树高、单株蓄积和出材量及经济效益等指标均高于其他两种模式。在杉木主产区和适生区,人工杉木林采取3次抚育间伐模式经营值得推广。

Cunnighamia lanceolata is the main plant of afforestation in the southern forestry area. According to the research on three different model of the non-implementation, 2nd, 3rd intermediate felling test, it proves that taking 3rd intermediate felling can promote the growth of the planted C.lanceolat. The indicators of its average diameter at breast height, height, volume per plant, output and economie benefit, and so on were higher than other two models. In main producing areas and suitable areasof C.lanceolata, the model that 3rd intermediate felling in planted C. laceolata should be, promoted.