不同栽培密度对多穗柯幼林生长的影响  

Effects of different planting densities on growth of young forest in Lithocarpus polystachyus

作　　者：曾祥艳[1] 陈金艳[1] 廖健明[1] 李开祥[1] 李建林[1] 

机构地区：[1]广西壮族自治区林业科学研究院,广西南宁530002

出　　处：《经济林研究》2014年第1期113-116,共4页Non-wood Forest Research

基　　金：国家林业公益性行业科研专项"珍贵林药多穗柯资源培育及开发利用研究"(201204612)

摘　　要：为了了解栽培密度对多穗柯生长特性的影响情况,以确定其适宜的种植密度,设置6种不同的种植密度进行了人工栽培试验。结果表明:种植1年后,各密度试验林植株各生长指标值都有一定的差异,其地径、冠幅、新梢数、单株鲜叶产量、比叶重间的差异均达显著或极显著水平,而其株高、分枝数、叶面积及叶片SPAD值之间的差异均不显著;密度为100 cm×100 cm的试验林其综合生长指标最好,植株平均径粗达13.42 mm,新梢数平均为51.07条,冠幅平均为64.89 cm×63.67 cm,单株鲜叶产量均值为200 g,比叶重均值达(109.18±0.19)g/m2。In order to find out the effect of planting density on growth characteristics and determine the optimal planting density in Lithocarpus polystachyus, artificial cultivation tests were carried out by setting six different densities. The results show that the growth indexes of experimental forest have a certain difference in one year after planting. Ground diameter, crown breadth, new shoot number, fresh leaf yield per plant and species leaf weight reach significant or extremely significant difference. There are not significantly differences among plant height, branch number, leaf areas and leaf SPAD value. The comprehensive growth index is the best in the experimental forest of 100 cm × 100 cm planting density. In the forest, the average ground diameter of plant is 13.42 mm, the average number of new branch is 51.07, the average crown is 64.89 cm × 63.67 cm, the mean fresh leaf yield of single plant is 200 g, and the mean species leaf weight reaches （109.18 ±0.19） g/m2.

关 键 词：多穗柯 栽培密度 早期生长特性 人工栽培试验 

分 类 号：S604[农业科学—园艺学] Q945.3[生物学—植物学]