文献类型：期刊文献

中文题名：物种丰富度及物种间相互作用对植物生长的影响——以木本紫胶虫寄主植物苗木为例

英文题名：Effects of species richness and interspecific interactions on the growth of plants——a case study on seedlings of host plants of Kerria spp.

作者：王庆[1] 卢志兴[1] 赵婧文[1] 陈又清[1]

第一作者：王庆

机构：[1]中国林业科学研究院资源昆虫研究所

年份：2018

卷号：40

期号：2

起止页码：398-404

中文期刊名：云南大学学报：自然科学版

收录：CSTPCD;;北大核心:【北大核心2017】；CSCD:【CSCD2017_2018】；

基金：国家自然科学基金(31470493;31270561)

语种：中文

中文关键词：生态系统功能;物种丰富度;相互作用;植物苗木;生物量;紫胶

外文关键词：ecosystem functions ; species richness ; interspecific interactions ; plant seedlings ; productivity ;Kerria spp.

分类号：Q948.1

摘要：为探究植物物种丰富度及物种间相互作用对物种及群落生产力的影响,研究调查了牛肋巴、木豆、南岭黄檀等3种紫胶虫寄主木本植物苗木在不同植物物种数及树种组合下群落的生物量.结果显示:在苗木期,不同植物受物种丰富度和物种间相互作用的影响不同,牛肋巴在单一种植时地上生物量最高,随着物种丰富度的增加有下降的趋势,与其他树种的混合种植不利于生长;木豆在物种丰富度为2时地上生物量最高,在与南岭黄檀混合种植时其生长状况最好;南岭黄檀在各种处理下其生物量没有明显差异,未受到物种丰富度及物种间相互作用的影响.在一定种植密度下,3种植物所组成的植物群落地上总生物量与物种丰富度呈单峰曲线关系.研究说明了在较小种植密度下,木本植物苗木期的个体及植物群落生产力会受到物种丰富度及物种相互作用的影响,但具体树种存在一定差异.在紫胶林的营建过程中,在高密度情况下,牛肋巴不适宜与其它树种混植,而木豆与南岭黄檀合理混植有利于寄主植物生长,可以提高紫胶林的生产力.
In order to explore the effects of plant species richness and interspecific interaction on plants and the community productivity,the growth of Dalbergia obtusifolia,Cajanus cajan,Dalbergia balansae and the community biomass with different species number and species combination was investigated. The results were as follows： the effects of species richness and interspecific interactions on plant growth varied largely.D.obtusifolia had the highest biomass in a single plantation,the biomass decreased by the increasing species richness,it grew slowly when planted with other plant species.The biomass of C. cajan was highest when the species richness was two and showed the best grow with D. balansae.The growth of D. balansae was affected by neither species richness nor interspecific interaction.The total biomass of community showed a single peak curve under a certain planting density,the biomass of the community reached the highest when the species richness was two.The study showed that with lower plant density,the growth and community productivity of woody plants are affected by species richness and species interactions but different plant species vary a lot. In the process of establishing lac plantations,it is not suggested to mix D. obtusifolia with other species in density plantation,while a rational mixed planting of C.cajan and D. balansae is beneficial to the growth of host plants and could improve the productivity of lac plantation.