Dryland farm soil may fix atmospheric carbon through autotrophic microbial pathways
文献类型：期刊论文
| 作者 | Zheng, Zicun1; Liu, Boyuan1; Fang, Xiang1; Fa, Keyu1,3,4; Liu, Zhen2,4,5 |
| 刊名 | CATENA
 |
| 出版日期 | 2022-07-01 |
| 卷号 | 214页码:9 |
| 关键词 | Dryland farm soil Autotrophic microbes Atmospheric carbon fixation Reductive citrate cycle Metagenome |
| ISSN号 | 0341-8162 |
| DOI | 10.1016/j.catena.2022.106299 |
| 通讯作者 | Fa, Keyu(fakeyu@cau.edu.cn) ; Liu, Zhen() |
| 英文摘要 | The absorption of CO2 by dryland farm soil has been reported, but understanding of its mechanisms is still limited. Recent investigations suggest that the absorption of atmospheric carbon by dryland farm soil is probably related to autotrophic carbon fixation in the soil. However, little evidence for this has been presented. Therefore, we hypothesized that autotrophic microbes employing carbon fixation pathways exist in dryland farm soil. To verify this hypothesis, metagenomic sequencing and analysis methods were used to identify autotrophic microbes harboring genes of carbon fixation pathways in the soil of six typical farmlands in a dryland area. The results showed that autotrophic microbes harboring genes of six carbon fixation pathways existed at each of the six sites, and their average relative abundance at our study sites was 1.68%. The dominant phyla of autotrophic microbes in dryland farm soil were Actinobacteria and Proteobacteria. Among the determined carbon fixation pathways, the reductive citrate cycle was the most representative pathway with the highest relative abundance. Moreover, the composition of these autotrophic microbes was correlated with total phosphorus and soil pH, while the composition of carbon fixation genes was not correlated with soil properties. Overall, the present study highlights that dryland farm soil may fix atmospheric carbon through autotrophic microbial pathways, which provides a new reference for exploring the absorption of atmospheric carbon in farmland soils of drylands. |
| WOS关键词 | COMMUNITY STRUCTURE ; ORGANIC-CARBON ; CO2 FIXATION ; CROP YIELDS ; DIVERSITY ; ABUNDANCE ; BACTERIAL ; DESERT ; PLANT ; MECHANISMS |
| 资助项目 | National Natural Science Foundation of China (NFSC)[51909266] ; National Field Scientific Observation and Research Station on Efficient Water Use of Oasis Agriculture in Wuwei of Gansu Province[KF2021001] ; Science and Tech-nology Basic Resources Investigation Special Project of China[2021FY100703] ; National Natural Science Foundation of China (NFSC)[51909266] ; National Field Scientific Observation and Research Station on Efficient Water Use of Oasis Agriculture in Wuwei of Gansu Province[KF2021001] ; Science and Technology Basic Resources Investigation Special Project of China[2021FY100703] |
| WOS研究方向 | Geology ; Agriculture ; Water Resources |
| 语种 | 英语 |
| WOS记录号 | WOS:000798105600003 |
| 出版者 | ELSEVIER |
| 资助机构 | National Natural Science Foundation of China (NFSC) ; National Field Scientific Observation and Research Station on Efficient Water Use of Oasis Agriculture in Wuwei of Gansu Province ; Science and Tech-nology Basic Resources Investigation Special Project of China ; National Natural Science Foundation of China (NFSC) ; National Field Scientific Observation and Research Station on Efficient Water Use of Oasis Agriculture in Wuwei of Gansu Province ; Science and Technology Basic Resources Investigation Special Project of China |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/177328]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Fa, Keyu; Liu, Zhen |
| 作者单位 | 1.China Agr Univ, Coll Water Resources & Civil Engn, Beijing 100083, Peoples R China 2.Beijing Forestry Univ, Sch Soil & Water Conservat, Yanchi Res Stn, Beijing 751500, Ningxia, Peoples R China 3.China Agr Univ, Natl Field Sci Observat & Res Stn Efficient Water, Beijing 733009, Gansu, Peoples R China 4.China Agr Univ, Coll Water Resources & Civil Engn, 17 Qinghua East Rd, Haidian Dist, Beijing, Peoples R China 5.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, CAS Engn Lab Yellow River Delta Modern Agr, Beijing 100101, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zheng, Zicun,Liu, Boyuan,Fang, Xiang,et al. Dryland farm soil may fix atmospheric carbon through autotrophic microbial pathways[J]. CATENA,2022,214:9. |
| APA | Zheng, Zicun,Liu, Boyuan,Fang, Xiang,Fa, Keyu,&Liu, Zhen.(2022).Dryland farm soil may fix atmospheric carbon through autotrophic microbial pathways.CATENA,214,9. |
| MLA | Zheng, Zicun,et al."Dryland farm soil may fix atmospheric carbon through autotrophic microbial pathways".CATENA 214(2022):9. |
入库方式： OAI收割
来源：地理科学与资源研究所
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