红壤生态系统下芽孢杆菌的物种多样性  

DIVERSITY OF BACILLUS SPECIES IN DIFFERENT RED SOIL ECO-SYSTEMS

作　　者：张华勇[1] 李振高[1] 王俊华[1] 潘映华[1] 

机构地区：[1]中国科学院南京土壤研究所,南京210008

出　　处：《土壤》2003年第1期45-47,共3页Soils

基　　金：中国科学院生物分类区系学科发展特别支持费资助课题〔9723〕;中科院资环局重点基金 资助项目〔KZ952-S1-224〕。

摘　　要：红壤地区不同生态系统下芽孢杆菌的物种多样性有所不同。初步结果表明,在多样性指数中,无论是Shannon-Wiener指数H捇故荢impson指数D都有如下规律:林地>旱地>水田>侵蚀地。物种的丰富度指数、均匀度指数也有类似规律。也就是说,芽孢杆菌属内物种多样性程度最高的是林地,最低的是侵蚀地。另外,作为物种多样性指数Shannon-Wiener指数H挶萐impson指数D在本实验中具有更大的差异区别能力。Diversity of Bacillus species varies with eco-system in the red soil region. Initial results of the study show that Shannon diversity index and Simpson diversity index have the same trend: forestland > upland > paddy field > eroded land. The richness index and the evenness index of the species have a similar trend, that is, forestland is the highest and eroded land the lowest. Besides, the results also show that Shanon-Wiener index is more useful than Simpson index to distinguish differences.

关 键 词：红壤生态系统 芽孢杆菌 物种多样性 SHANNON-WIENER指数 Simpson指数 

分 类 号：S154.381[农业科学—土壤学]