文献类型：期刊文献

中文题名：神农架土壤微生物群落的海拔梯度变化

英文题名：Variation of Soil Microbial Community along Elevation in the Shennongjia Mountain

作者：张于光[1] 宿秀江[2] 丛静[1,3] 陈展[1] 卢慧[1] 刘敏超[4] 李迪强[1]

第一作者：张于光

机构：[1]中国林业科学研究院森林生态环境与保护研究所国家林业局森林生态环境重点实验室;[2]湖南白云山国家级自然保护区管理局;[3]中南大学资源加工与生物工程学院;[4]五邑大学化学与环境工程学院

年份：2014

卷号：50

期号：9

起止页码：161-166

中文期刊名：林业科学

外文期刊名：Scientia Silvae Sinicae

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

基金：中央公益型科研院所基本科研业务费专项资金项目(CAFRIFEEP201101);湖北神农架国家级自然保护区本底资源调查子项目;国家自然保护区生物标本资源共享子平台(2005DKA21404)

语种：中文

中文关键词：海拔梯度;土壤微生物群落;神农架;磷脂脂肪酸;分布格局

外文关键词：elevation gradient;soil microbial community;Shennongjia Mountain;phospholipid fatty acid （ PLFA ）; distribution pattern

分类号：S154.3

摘要：生物多样性的海拔梯度分布格局及其形成机制一直是生物学和生态学理论研究的重要内容之一，也是全面理解生物多样性和生态系统对环境变化响应的重要内容（Wang et al．，2010）。长期以来，对动物和植物进行了大量的相关研究，并提出许多解释其分布格局和形成机制的假说和理论（ Renaud et al．，2009）。目前，关于土壤微生物的海拔梯度分布规律的相关研究还很少，在海拔梯度分布格局上，土壤微生物是否与大型生物有着相似的分布规律仍没有得到较好的验证，有待进一步研究探讨（ Fierer et al．，2011）。
To understand the microbial community,structure and its elevational patterns,four plant types at different elevations in Shennongjia Mountain,including deciduous broadleaved forest,subalpine coniferous forest,coniferous-broadleaved mixed forest, and subalpine bush, were selected to analyze the soil microbial community structure by phospholipid fatty acid （ PLFA） technique. The results showed that a total 24 PLFAs were detected in the soil and the content of total microbial PLFA,bacterial PLFA,fungi PLFA,actinomycete PLFA,and G ＋ and G -bacterial PLFA in the soil all exhibited a single peak of distribution pattern along altitude. The PLFA content was highest in coniferous-broadleaved mixed forest soil,and lowest in subalpine bush soil. The significant difference （P 〈0. 05） in PLFA content in the soil was detected among subalpine coniferous forest,coniferous-broadleaved mixed forest and subalpine bush soils. Principal component analysis showed the four plant types had obviously different microbial community structure. Pearson relationship and canonical correspondence analysis indicated that the plant Shannon-Wiener index and the soil pH were significantly correlated （P 〈 0. 01） with the soil microbial PLFA content. Thus,plant diversity and soil pH may be the important factors in shaping the microbial elevation patterns.