文献类型：期刊文献

中文题名：不同栽培密度对辣木人工林分枝格局及生物量的影响

英文题名：Effects of planting density on the branching pattern and biomass of Moringa oleifera plantation

作者：宿爱芝[1] 郑益兴[1] 吴疆翀[1] 张燕平[1]

第一作者：宿爱芝

机构：[1]中国林业科学研究院资源昆虫研究所

年份：2012

卷号：31

期号：5

起止页码：1057-1063

中文期刊名：生态学杂志

外文期刊名：Chinese Journal of Ecology

收录：CSTPCD;;Scopus;北大核心:【北大核心2011】；CSCD:【CSCD2011_2012】；

基金：国家科技支撑计划项目(2012BAD21B04);中国林业科学研究院基本科研业务费(Riricaf200805m);林业公益性行业科研专项(200704007)资助

语种：中文

中文关键词：辣木;分枝格局;栽培密度;生物量;果荚

外文关键词：Moringa oleifera; branching pattern; planting density; biomass; pod

分类号：S792

摘要：为了探讨干热河谷盆地辣木种植密度与分枝格局和生物量的关系及较为合理的种植密度,通过野外实地调查和数据分析对该地区不同栽培密度辣木人工林分枝格局及生物量进行研究,结果表明:辣木林分在株高、地径、冠幅以及分枝数量方面与栽培密度呈现显著负相关;不同密度下,根、茎、叶生物量及果荚数和果荚均长、直径和果荚均仔粒数之间都存在显著的差异性;栽培密度对辣木的分枝格局有较显著影响,主要表现在一级/二级分枝率、二级/三级分枝率以及三级分枝长度上有显著差异;辣木在不同方位上分枝格局有明显差异,主要体现在主、侧枝分枝长度和一级分枝角度上的差异显著;在本试验范围内,以叶用辣木为培育目标的较适宜的栽培密度为株行距0.9m×0.9m,以果用为栽培目标的较适宜的栽培密度为株行距1.5m×1.5m。在不同的栽培密度下,辣木人工林之间分枝格局及生物量的显著性差异,反映了辣木随环境的变化具有较高的形态可塑性和生态适应性。
In order to explore the relationships between the planting density and the branching pattern and biomass of Moringa oleifera in dry and hot valley basin, and to search for a more reasonable planting density of this plant, a field survey was conducted on the branching pattern and biomass of M. oleifera plantations under different planting densities. There existed significant negative correlations between the plant height, basal diameter, crown breadth, and branch number and the planting density, and significant differences in the biomass of root, stem, and foliage, the pod number, length, and diameter, and the grains per pod under different planting densities. Planting density had significant effects on the branching pattern of M. oleifera, mainly manifesting in the significant differences in the ratios of first order branch to second order branch and of second order branch to third order branch, and the third order branch length. In different directions, the branching pattern had significant differences in the length of main and lateral branches and the angle of first order branch. For the purposes of using foliage and pod, the more reasonable spacing of M. oleifera could be 0.9 m ×0.9 m and 1.5 m × 1.5 m, respectively. In sum, the significant differences in the branching pattern and biomass of M. oleifera plantations under different planting densities suggested that M. oleifera had high morphological plasticity and ecological adaptability to the changing environment.