| 藏北高原草甸土壤固碳微生物群落特征随海拔和季节的变化 |
| |
| 引用本文： | 高静,MUHANMMAD Sai,岳琳艳,何永涛,斯确多吉,张宪州,孔维栋.藏北高原草甸土壤固碳微生物群落特征随海拔和季节的变化[J].生态学报,2018,38(11):3816-3824. |
| |
| 作者姓名： | 高静 MUHANMMAD Sai 岳琳艳 何永涛 斯确多吉 张宪州 孔维栋 |
| |
| 作者单位： | 中国科学院青藏高原研究所高寒生态学与生物多样性重点实验室;中国科学院大学资源与环境学院;中国科学院地理与资源科学研究所生态系统网络观测与模拟重点实验室 |
| |
| 基金项目： | 国家自然科学基金面上项目（41401287）；中国科学院前沿可行重点研究项目（QYZDB-SSW-DQC033） |
| |
| 摘 要： | 研究土壤固碳微生物丰度、群落结构、多样性差异及其影响因子对了解青藏高原土壤碳循环和固碳潜力具有重要意义。采用定量PCR(qPCR)、末端限制性片段分析(T-RFLP)、克隆文库和测序方法,研究了青藏高原草甸土壤固碳微生物丰度与群落结构随海拔和季节的变化,主要结果如下:1)随海拔升高高寒草甸土壤固碳微生物丰度显著升高,但季节变化不明显,不同类别微生物固碳基因cbbL丰度依次为:Form ICForm IABForm ID,其中Form IC类固碳微生物可达10~8拷贝数/g土壤,cbbL基因丰度与海拔、土壤含水量和铵态氮含量(NH_4~+-N)呈正相关关系,与土壤温度和pH值负相关;2)固碳微生物多样性和丰富度随海拔升高而升高,在4800m达到最大,且二者受季节影响较小,其群落结构随海拔升高而逐渐变化,主要受土壤pH值、海拔和土壤水分影响;3)Form IC类固碳微生物主要包括放线菌门和和变形菌门,其中α变形菌门是高寒草甸土壤优势固碳微生物类群。本研究有助于理解土壤微生物群落功能及其在土壤碳循环过程中的作用,为更准确评估高寒草甸土壤碳循环过程提供了科学依据。
|
| 关 键 词： | 高寒草甸 固碳微生物 RubisCO酶 海拔梯度 青藏高原 |
| 收稿时间： | 2017/5/16 0:00:00 |
| 修稿时间： | 2018/2/13 0:00:00 |
Changes in CO2-fixing microbial community characteristics with elevation and season in alpine meadow soils on the northern Tibetan Plateau |
| |
| GAO Jing,MUHANMMAD Sai,YUE Linyan,HE Yongtao,TSECHOE Dorji,ZHANG Xianzhou and KONG Weidong.Changes in CO2-fixing microbial community characteristics with elevation and season in alpine meadow soils on the northern Tibetan Plateau[J].Acta Ecologica Sinica,2018,38(11):3816-3824. |
| |
| Authors: | GAO Jing MUHANMMAD Sai YUE Linyan HE Yongtao TSECHOE Dorji ZHANG Xianzhou and KONG Weidong |
| |
| Institution: | Key Laboratory of Alpine Ecology and Biodiversity, Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing 100101, China;College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China,Key Laboratory of Alpine Ecology and Biodiversity, Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing 100101, China,Key Laboratory of Alpine Ecology and Biodiversity, Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing 100101, China;College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China,Key Laboratory of Ecosystem Network Observation and Modeling, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China,Key Laboratory of Alpine Ecology and Biodiversity, Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing 100101, China,Key Laboratory of Ecosystem Network Observation and Modeling, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China and Key Laboratory of Alpine Ecology and Biodiversity, Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing 100101, China;College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China |
| |
| Abstract: | |
| |
| Keywords: | alpine meadow cbbL RubisCO elevation the Tibetan Plateau |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《生态学报》浏览原始摘要信息 |
| 点击此处可从《生态学报》下载免费的PDF全文 |
|
