Microbial assimilation of atmospheric CO2 into soil organic matter revealed by the incubation of paddy soils under 14C-CO2 atmosphere

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成果类型：

期刊论文

作者：

Jian, Yan;Zhu, Zhenke*;Xiao, Mouliang;Yuan, Hongzhao;Wang, Jiurong;...

通讯作者：

Zou, Dongsheng;Zhu, Zhenke

作者机构：

[Jian, Yan; Zou, Dongsheng] Hunan Agr Univ, Coll Biosci & Biotechnol, Changsha, Hunan, Peoples R China.

[Xiao, Mouliang; Wang, Jiurong; Jian, Yan; Wu, Jinshui; Zhu, Zhenke; Yuan, Hongzhao; Ge, Tida] Chinese Acad Sci, Inst Subtrop Agr, Key Lab Agroecol Proc Subtrop Reg, Changsha, Hunan, Peoples R China.

通讯机构：

[Zou, Dongsheng] H

[Zhu, Zhenke] C

Hunan Agr Univ, Coll Biosci & Biotechnol, Changsha, Hunan, Peoples R China.

Chinese Acad Sci, Inst Subtrop Agr, Key Lab Agroecol Proc Subtrop Reg, Changsha, Hunan, Peoples R China.

语种：

英文

关键词：

C cycling;CO2 fixation;microbial autotrophs;paddy soil;soil microbial biomass

期刊：

Archives of Agronomy and Soil Science

ISSN：

0365-0340

年：

2016

卷：

期：

页码：

1678-1685

DOI：

10.1080/03650340.2016.1171850

基金类别：

This study was financially supported by the National Natural Science Foundation of China [41430860], [41301275]; International Cooperation and Regional Science and Technology of Hunan Province [2015WK3044]; and the Open Foundation of Key Laboratory of Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences [ISA2015101].

机构署名：

本校为第一且通讯机构

院系归属：

生物科学技术学院

摘要：

Similar to higher plants, microbial autotrophs possess photosynthetic systems that enable them to fix CO2. To measure the activity of microbial autotrophs in assimilating atmospheric CO2, five paddy soils were incubated with 14C-labeled CO2 for 45 days to determine the amount of 14C-labeled organic C being synthesized. The results showed that a significant amount of 14C-labeled CO2 incorporated into microbial biomass was soil specific, accounting for 0.37%–1.18% of soil organic carbon (14C-labeled organic C range: 81.6–156.9 mg C kg−1 of the...

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Microbial assimilation of atmospheric CO2 into soil organic matter revealed by the incubation of paddy soils under 14C-CO2 atmosphere

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