摘要
通过样地调查,运用重要值、多样性、均匀度和丰富度等指标,研究杨树林、落叶松林和榆树林林下草地植物群落的物种多样性。研究结果表明:(1)在杨树林生活型功能群中,灌木处于优势地位,落叶松林和榆树林生活型功能群中,多年生草本植物处于优势地位,具有稳定群落的效应;(2)Simpson指数:落叶松林与榆树林(两者差异较小)>杨树林,Shannon-Wiener指数:杨树林>落叶松林与榆树林(两者差异较小);(3)Mc-Intosh指数、Pielou指数3种乔木林下物种均匀度差异性不是很明显;(4)Margalte指数和Patrick指数:杨树林>落叶松林>榆树林。
Through field investigations, by use of the important value, diversity, evenness, richness and other indicators, studies on lawn community species diversity under the Poplar plantation, Larch principis plantation and Elm plantation have been done. The results show that ： （ 1 ） in the life - functional group of Poplar plantation, shrubs are at the advantage position. In the life - functional group of Larch plantation and Elm plantation, the herbaceous perennials are at the advantage position,which can stabilize the community. （2） The Simpson index of Larch and Elm plantation （ the difference is unremarkable） 〉 one of Poplar plantation. Shannon - Wiener index of Poplar plantation 〉 one of Larch and Elm plantation （ the difference is unremarkable）. （3） The difference of McIntosh index and Pielou index among the three kinds of arboreous forest is not very obvious. （4） The Patrick and Margahe index of Poplar plantation 〉 Larch plantation 〉 Elm plantation.
出处
《内蒙古林业科技》
2008年第1期21-23,31,共4页
Journal of Inner Mongolia Forestry Science and Technology
基金
十一五科技支撑项目(2006BAD26B0102)
国家林业局"948"项目(2006-4-07)
关键词
乔木林
草地植物群落
多样性
arboreous forest
lawn community
diversity
