【作者】 高培军； 郑郁善； 方伟；

【Author】 Gao Peijun Zheng Yushan Fang Wei(Bamboo Research Institute, Zhejiang Forestry College 311300 Lin’an, Zhejiang) (Forestry College of Fujian Agriculture and Forestry University Fuzhong)

【机构】 浙江林学院竹类研究所； 福建农林大学林学院；

【摘要】 绿竹笋用林经营密度和年龄结构通过二次回归正交试验,结果表明:鲜笋产量、挖笋个数、单株发笋个数、个体重、新竹平均胸径及经济收益回归方程在不同水平回归显著(F0.1≥5.54)或极显著(F0.05≥10.1),回归方程拟合良好。鲜笋产量、发笋个数随着丛立竹数和1年生母竹数的增加而增大;单株发笋个数随着1年生母竹比例的增加而增大,随着立竹数的增加而减少;个体重、新竹平均胸径随着立竹数的增加而减少。经济收益在立竹数7833.0株·hm-2,1年生与2～3年生绿竹比例为3:1时达最大值为21500.9元·hm-2。更多还原

【Abstract】 Quadratic regressive orthogonal design for density of bamboo and age structure showed that the regression equation of yield and quantity of shoot, the number from individual bamboo, individual weight, average diameter at breast height of one-year-old bamboo and economic profit fitted very well at different level, and the regressive result was significant(F0.1≥5.54) and terrible significant(F0.05≥10.1). The yield and quantity of shoot increased with the density of bamboo and the quantity of one-year-old bamboo. The shoot quantity of individual increased with the ratio increasing of one-year-old in the stand, although decreased when the plantation density increased, the same to individual weight and average diameter at breast height of one-year-old bamboo. The highest economic profit 21500.9yuan·hm-2 was reached when the stand density was 7833zhu·hm-2 and the ratio of one-year-old bamboo and 2-3 years old bamboo was 3.0:1.更多还原