应用生态学报2017，Vol.28Issue(10)：3155-3162,8.DOI:10.13287/j.1001-9332.201710.007
竹子扩张对阔叶林物种多样性的影响:两竹种的叠加效应
Addition effects of co-expansion of two bamboos on plant diversity in broad-leaved forests
摘要
Abstract
The effects of Phyllostachys edulis and Oligostachyum oedogonatum expansion on species diversity of broad-leaved forests were investigated in Wuyishan National Nature Reserve,Jiangxi Province,China.Ph.edulis and/or O.oedogonatum expansion changed community structure and species composition.The co-expansion of the two bamboos in high intensity (Ph.edulis was 30-50 ind · 100 m-2,O.oedogonatum was 300-500 ind · 100 m-2) changed the density ratio of arbor and shrub from 2∶8 to 1∶9,and density ratio of bamboo and tree from 0∶10 to 9∶1.The main effects of Ph.edulis and O.oedogonatum on the species diversity were significant.Ph.edulis mainly influenced arbor layer,while O.oedogonatum influenced shrub layer more,and the interaction effect of two bamboos was not remarkable.There existed addition effects between Ph.edulis and O.oedogonatum on species diversity.The co-occurrence of two bamboos in high intensity decreased the Shannon index of community by 91.3％.Ph.edulis and O.oedogonatum did not compete obviously unless in high density.It was addition effect rather than interaction effect that changed the community structure and reduced species diversity when broad-leaved forest suffered invasion by Ph.edulis and O.oedogonatum.关键词
毛竹/肿节少穗竹/物种多样性/叠加效应/常绿阔叶林Key words
Phyllostachys edulis/Oligostachyum oedogonatum/species diversity/addition effect/evergreen broad-leaved forest引用本文复制引用
杨清培,郭英荣,兰文军,宋庆妮,杨光耀..竹子扩张对阔叶林物种多样性的影响:两竹种的叠加效应[J].应用生态学报,2017,28(10):3155-3162,8.基金项目
本文由国家自然科学基金项目(31460077)和江西武夷山国家级自然保护区项目资助 This work was supported by the National Natural Science Foundation of China (31460077) and the Foundation of Wuyishan National Nature Reserve,Jiangxi Province,China. （31460077）
