3 种日本柏树在莲都林场的引种及生长特征研究

Growth Properties of Three Introduced Tree Species in Lishui

摘要: 2016 年，通过样地调查与解析木分析，对莲都林场1979 年引种的日本扁柏Chamaecyparis obtusa、日本花柏C. pisifera 和日本香柏Thuja standishii 的生长特征及其地上生物量进行了测定。结果表明，3 种柏树胸径速生期在10 ~ 15 年生期间，树高速生期在5 ~ 10 年生时，单株材积年生长自30 年生后趋于平稳；日本扁柏、日本花柏和日本香柏单株地上生物量分别为89.56 kg，62.57 kg 和68.78 kg，其林分地上生物量分别为159.86 t·hm^-2，138.91t·hm^-2 和212.74 t·hm^-2。

Abstract: Investigations were carried out in 2016 in Liandu Forest Farm of Zhejiang province on growth traits and aboveground biomass by sampleplots and analytic wood of Chamaecyparis obtusa, C. pisifera and Thuja stardishii introduced in 1979 by cuttings. The results showed that fastgrowth period of DBH of three determined species was between 10-year and 15-year and that of height was between 5-year and 10-year. Theindividual tree volume increment was gradually stable after 30-year. Above ground biomass of individual tree of tested species were 89.56 kg, 62.57kg and 68.78 kg respectively, and that of stands were159.86 t/ ha, 138.91 t/ ha and 212.74 t/ha respectively.