北京林业大学学报2017，Vol.39Issue(6)：45-50,6.DOI:10.13332/j.1000-1522.20170067
山西华北落叶松群落物种多样性
Species diversity of Larix principis-rupprechtii communities in Shanxi Province of northern China
摘要
Abstract
In order to explore the species diversity of Larix principis-rupprechtii forests in Shanxi Province of northern China,40 typical sample plots of Larix principis-rupprechtii forests were investigated from the field. Based on the result of TWINSPAN classification, the communities were classified into 10 associations. The species diversity of Larix principis-rupprechtii communities in Shanxi was studied by species richness index ( R ) , Simpson index ( D ) , Shannon-Wiener index ( H′) and Pielou evenness index ( E ) . Through this study, it is hopeful to provide scientific basis for protection and rational exploitation of Larix principis-rupprechtii communities. Community H′ index was affected by R and E indexes together, containing more information about community composition structure and distribution condition . The results indicated that the rank of species richness index for ten associations was association 2> association 1 > association 3 > association 9 > association 4 > association 5 > association 10 >association 6>association 7>association 8 . All Larix principis-rupprechtii associations had higher species diversity index, and it had big difference in the different associations. It showed that the Larix principis-rupprechtii communities had more complex structure, higher organization level and appropriate growth environment. The biodiversity index was the highest in herb layer, followed by the shrub layer and the forest layer, which suggested that the herb layer contributed to the overall community richness mostly. The results of one-way ANOVA for those indices among 10 associations showed that R had a significant difference ( P<0. 05 ) , and H′ had extremely significant difference ( P <0. 01 ) , while the difference between D and E was not significant ( P>0. 05 ) .关键词
山西/华北落叶松/物种多样性Key words
Shanxi Province/Larix principis-rupprechtii/species diversity分类
农业科技引用本文复制引用
赵天梁..山西华北落叶松群落物种多样性[J].北京林业大学学报,2017,39(6):45-50,6.基金项目
山西省自然科学基金项目(2013011037-1)、科技部科技基础性工作专项(2011FY110300). （2013011037-1）
