文献类型：期刊文献

中文题名：毛竹材用林林下植被群落结构对多花黄精生长的影响

英文题名：The impact of understory vegetation structure on growth of Polygonatum cyrtonema in extensively managed Phyllostachys edulis plantation

作者：樊艳荣[1] 陈双林[1] 杨清平[1] 李迎春[1] 郭子武[1] 陈珊[1]

第一作者：樊艳荣

机构：[1]中国林业科学研究院亚热带林业研究所

年份：2014

卷号：34

期号：6

起止页码：1471-1480

中文期刊名：生态学报

外文期刊名：Acta Ecologica Sinica

收录：CSTPCD;;Scopus;北大核心:【北大核心2011】；CSCD:【CSCD2013_2014】；

基金：国家公益性行业(林业)科研专项(201004008);浙江省中国林科院省院合作项目(2008SY10;2010SY01);浙江省农业科技成果转化项目(2012T201-02)

语种：中文

中文关键词：毛竹材用林;多花黄精;林下植物;物种组成;分布格局;多样性指数

外文关键词：Phyllostachys edulis plantation;Polygonatum cyrtonema;understory plants;species composition;distribution pattern;diversity index

分类号：Q949.718.2

摘要：为了摸清毛竹(Phyllostachys edulis)林下植被群落结构对多花黄精(Polygonatum cyrtonema)生长的影响,给毛竹-多花黄精复合经营提供理论参考,以半阴坡下坡位粗放经营的毛竹材用纯林为对象,调查分析毛竹林下植物物种组成、外貌特征和分布格局,对影响多花黄精生长的林下植物多样性指标进行相关性分析和主成分分析。结果表明:试验毛竹林下植物有34种,隶属27科32属,优势种为山苍子(Litsea cubeba)、悬钩子(Rubus corchorifolius)、显子草(Phaenosperma globosa)、五节芒(Miscanthus floridulu)、芒萁(Dicranopteris dichotoma)和多花黄精,分布格局类型多花黄精为均匀分布,其他物种均呈强烈聚集分布,聚集强度从大到小排序为五节芒>芒萁>显子草>山苍子>悬钩子。多花黄精生长与毛竹林下植物多度、高度和多样性指数关系密切,其中,Shannon-Wiener多样性指数和包含绝对多度多样性指数是主要的影响指标,Shannon-Wiener多样性指数0.2924—1.2049,包含绝对多度多样性指数2.8439—8.8099时多花黄精生长良好。研究表明:为使毛竹林下多花黄精良好生长,在实践生产中,9—10月份可通过人工劈山除草来控制毛竹林下植物多度为159—843株/m2。
In order to approach the impact of understory vegetation structure on growth of Polygonatum cyrtonema and establish a theoretical basis for compound management of it in Phyllostachys edulis plantation, The different species composition, physical characteristics and distribution patterns of the understory plants at semi-shady lower slope in extensively managed Phyllostachys edulis plantation were studied. For the research both coorelation and principal analyses to examine diversity indexes of the understory plants with growth indexes of P. cyrtonema were employed. The results are as the following： （1） 34 species belong to 27 families and 32 genera which are recorded in the test plots of Ph. edulis plantation. In particularly, Litsea cubeba, Rubus corchorifolius, Phaenosperma globosa, Miscanthus floridulu, Dicranopteris dichotoma and P.cyrtonema are dominant species within understory plants. （2） The spatial distribution pattern of P. cyrtonema is variously distributed,whereas the others’ species are distributed clumped. Meanwhile, the clump intensity of these species is illustrated as descending order： M. floridulu 〉 D. dichotoma 〉 P. globosa 〉 L. cubeba 〉 R. corchorifolius. （3） There is significant （P 〈 0.05） or obvious significant （P 〈 0.01） correlation among P. cyrtonema growth indexes with abundance, height and diversity indexes of the understory plants in Ph. edulis plantation. Especially, Shannon-Wiener diversity index （H） and containing absolute abundance diversity index （I） are the major impact indicators. Furthermore,P. cyrtonema grows well when H is indicated between 0.2924-1.2049 and I is indicated between 2.8439-8.8099. （4） Therefore, to promote P. cyrtonema growing well in Ph. edulis plantation, the abundance of the understory plants should be controlled in-between 159 and 843 ind/m2 by hilltops weeding in September and October.