[1]赵梦赛,栾亚宁,戴伟*,等. 丝栗栲林土壤微生物PLFA群落结构的时空变化特征[J].西北林学院学报,2019,34(6):16-21.[doi:10.3969/j.issn.1001-7461.2019.06.03]
　ZHAO Meng-sai,LUAN Ya-ning,DAI Wei*,et al. Spatial and Temporal Variation Characteristics of Soil Microbial PLFA Community in Castanopsis fargesii[J].JOURNAL OF NORTHWEST FORESTRY UNIVERSITY,2019,34(6):16-21.[doi:10.3969/j.issn.1001-7461.2019.06.03]
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 丝栗栲林土壤微生物PLFA群落结构的时空变化特征()
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《西北林学院学报》[ISSN:1001-7461/CN:61-1202/S]

卷:
第34卷
期数:
2019年第6期
页码:
16-21
栏目:
出版日期:
2019-11-30

文章信息/Info

Title:
 Spatial and Temporal Variation Characteristics of Soil Microbial PLFA Community in Castanopsis fargesii
文章编号:
1001-7461(2019)06-0016-06
作者:
 赵梦赛1; 栾亚宁1; 戴伟1*; 王兵2; 乔红雍1
 （1.北京林业大学 林学院，北京 100083；2.中国林业科学院 森林生态环境与保护研究所，北京 100091）
Author(s):
 ZHAO Meng-sai1; LUAN Ya-ning1; DAI Wei1*; WANG Bing2; QIAO Hong-yong1
 (1.College of Forestry,Beijing Forestry University,Beijing 100083,China; 2.Research Institute of Forest Ecology,Environment and Protection,CAF,Beijing 100091,China)
关键词:
 ; 丝栗栲; PLFA; 土壤微生物群落; 时空变化
Keywords:
Castanopsis fargesii;  PLFA;  soil microbial community;  temporal and spatial variation
分类号:
S714.5
DOI:
10.3969/j.issn.1001-7461.2019.06.03
文献标志码:
A
摘要:
 以江西大岗山丝栗栲林为研究对象，采用磷脂脂肪酸（PLFA）法并结合主成分分析等方法，研究土壤微生物PLFA群落结构和多样性随时间和土壤深度的变化特征。结果表明，丝栗栲林地土壤共有40种PLFA存在，其中16∶0、5,9,13Me14∶0和10Me16∶0在各时期各土层中均有分布，并占有绝对含量优势；土壤微生物有明显的表聚现象（P<0.05），0~20 cm土层中土壤微生物的丰富度指数、Pielou均匀度、Simpson多样性指数和Shannon-Wiener多样性指数都显著优于下层土壤，但同层土壤随时间变化不明显；主成分分析（PCA）表明，18∶0、18∶1w11t、18∶1w9t、cy17∶0、a14∶0是影响丝栗栲林地土壤微生物的主要PLFA；相关性分析表明，土壤PLFA含量与降雨量和凋落物量都呈极显著正相关（P<0.01）。
Abstract:
 Taking the Castanopsisfargesii forests occurring in Dagangshan of Jiangxi Province as research objects,the method of measuring phospholipid fatty acid (PLFA) was adopted to explore the temporal characteristics of soil microorganism PLFA community with the soil depth.Principal component analysis method was used.The results showed that there were 40 kinds of PLFA in soil under C.fargesii forests,including 16∶0,5,9,13 Me14∶0,and 10Me16∶0,which were distributed in different soil layers with dominant contents.Soil microorganism had obvious surface accumulation (P<0.05),and the soil microorganism richness index,Pielou evenness,Simpson diversity index and Shannon-wiener diversity index in the 0-20 cm soil layer were significantly superior to those in deeper soil layers,but the temporal changes between the same soil layer were not significant.Principal component analysis (PCA) indicated that 18∶0,18∶1w11t,18∶1w9t,cy17∶0,and a14∶0 were the main PLFA affecting the soil microorganisms.Correlation analysis showed that both precipitation and litters were significantly and positively correlated with soil PLFA content (P<0.01).

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备注/Memo

备注/Memo:
 收稿日期：2019-01-21修回日期：2019-03-10
基金项目：中央高校基本科研业务费（2017ZY03）；科技部科技基础性工作专项（2014FY120700）。
作者简介：赵梦赛，女，硕士在读，研究方向：森林健康与修复。E-mail：1261279760@qq.com
*通信作者：戴伟，男，副教授，研究方向：森林土壤。E-mail：daiwei1@bjfu.edu.cn
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