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青钱柳是我国特有的珍稀多用途树种。以浙江千岛湖林道边6m间距的33a生青钱柳人工林为研究对象,通过树干解析和生物量测定,研究其生长过程和生物生产力特征。结果表明:1)青钱柳生长快,树高速生期3—14a,胸径速生期4—19a,材积速生期7—24a;树高持续保持良好生长,24 a进入数量成熟期,其生长趋势离经济成熟、工艺成熟、自然成熟还有较长时间。2)33a生青钱柳10月份的树木各器官的含水率大小趋势为叶>根>枝>干>果,在10月初落叶时青钱柳的叶含水率仍达60%以上,可以常年用叶做茶制药。树木各器官的生物量比重大小趋势为干>枝>根>叶>果,干和枝生物量比重分别在46%,36%以上。平均生物量为610.152kg/株。青钱柳枝叶茂盛,根系发达,高大挺拔,生产力高,有一定的林下更新能力,开发利用前景广阔。
Cyclocarya paliurus is a unique rare multi-purpose species in our country. In this paper, 33-year-old Cymbidium anisopliae plantation with 6 m spacing along the forest roadside of Qiandao Lake in Zhejiang Province was used as the research object to study its growth process and bio-productivity characteristics through tree trunk analysis and biomass measurement. The results showed that: 1) Cyclocarya paliurus grew fast, the tree fast growth period was 3-14a, the DBH fast growth period was 4-19a, and the volume rapid growth period was 7-24a. The tree height continued to maintain good growth and reached the quantitative maturity stage at 24 days. From the economic maturity, technology maturity, there is still a long time natural maturity. 2) 33a green and green willow trees in October the trend of the water content of various organs of the leaf size> root> branch> stem> fruit, the leaves of early October when the leafy leaves of the water content is still up to 60%, you can perennial Leaves made tea pharmacy. The biomass proportion of all organs of trees tended to be dry> branch> root> leaf> fruit, and the proportion of dry and branch biomass was 46% and 36% respectively. The average biomass was 610.152 kg / plant. Green willow branches and leafy, well-developed root system, tall and straight, high productivity, a certain ability to under-forest regeneration, development and utilization of broad prospects.