造林配置对杨树人工林生长和地上生物量的影响  

Effects of Initial Planting Spacing on Growth and Above-ground Biomass of Populous Plantation

作　　者：董玉峰[1] 匡星星 秦乃花 王卫东[1] 秦光华[1] 姜岳忠[1] 

机构地区：[1]山东省林业科学研究院,济南250014 [2]崂山区农林局 [3]山东省林业监测规划院

出　　处：《东北林业大学学报》2015年第9期30-33,共4页Journal of Northeast Forestry University

基　　金：山东省优秀中青年科学家科研奖励基金(2015BSB22003);国家林业公益性行业科研专项(201004004)

摘　　要：采用标准木调查法,对鲁西平原4种造林配置(株行距2 m×3 m、2 m×4 m、2 m×5 m和2 m×6 m)5年生杨树试验林的生长和地上生物量进行分析。结果表明:造林配置对5年生杨树单株胸径和地上生物量有显著影响(P<0.05),对单株树高影响不显著;单株胸径、树高、冠幅和单株地上生物量总体随造林株行距减小而减小;胸径、树高与树干、枝、叶生物量间均为正相关关系;利用方程y=-0.400 6x2+16.671x-104.12可较好拟合单株地上生物量与单株胸径的关系。以获取单位面积最大地上生物量为目标,株行距2 m×3 m适用于鲁西平原杨树人工林造林。A plot survey was conducted in a 5-year-old Populous plantation with four planting spacing （ spacing of 2 m×3 m, 2 m× 4 m, 2m×5 m, and 2 m×6 m） to study the influence of initial spacing on the growth and biomass accumulation. Initial planting spacing had significant effects on diameter at breast height （DBH） and single tree volume （P〈0.05）, but had no significant effects on single tree height and stand biomass. With the increase of planting density, single tree DBH, tree vol- ume, crown and individual above-ground biomass were decreased, but stand biomass was increased. DBH and tree height were positively correlated to stem, branch and leaf biomass. The equation of y = - 0. 400 6x2 ＋ 16. 67 lx- 104.12 was applica- ble to the relationship between individual above-ground biomass and DBH. In terms of a combination of stand level biomass accumulation, we suggested a planting density of 2 re×3 m for plantation in western olain area of Shangdong Province.

关 键 词：杨树 造林密度 生长 生物量 

分 类 号：S725.6[农业科学—林木遗传育种]