Effects of different land-use types on the activity and community of autotrophic microbes in karst soil
文献类型：期刊论文
| 作者 | Liu, Xing1,2,3; Zhao, Yuan1,3; Liu, Zaihua1,4; Wu, Qiusheng1; Wang, Heng1,3; Yuan, Quan1,4 |
| 刊名 | GEODERMA
 |
| 出版日期 | 2023-10-01 |
| 卷号 | 438页码:10 |
| 关键词 | Autotrophic carbon fixation Autotrophic community 13CO2 labelling Soil organic carbon Karst soil |
| ISSN号 | 0016-7061 |
| DOI | 10.1016/j.geoderma.2023.116635 |
| 通讯作者 | Yuan, Quan(yuanquan@mail.gyig.ac.cn) |
| 英文摘要 | CO2 fixation by soil autotrophic microbes could make considerable contribution to soil organic matter (SOM). However, the effects of different land-use types on the activity and community of soil autotrophic microbes are still unclear. In this study, the autotrophic carbon fixation (ACF) rates of karst soils with four land-use types were assessed by 13CO2 labelling. After 21 days incubation under alternate 12 h light with darkness, the ACF rate was 0.18 mg C & BULL;kg-1 & BULL;day-1 in bare land soil, approximately 0.39 mg C & BULL;kg-1 & BULL;day-1 in crop land and shrub land soils, while sharply increased to 1.54 mg C & BULL;kg 1 & BULL;day 1 in grass land soil. The 13C nuclear magnetic resonance analysis of SOM showed that the fixed 13CO2 was mainly incorporated into carbonyl carbon in grass land soil, but largely incorporated into recalcitrant aromatic carbon in other land-use types, especially in bare land. Longer incubation time (21 days versus 7 days) greatly elevated ACF rate only in grass land soil (by about 4 times) under continuous light conditions, suggesting that longer incubation in light conditions largely stimulated microbial phototrophic CO2 fixation in grass land soil. Metagenomic analysis showed that the soil autotrophic microbial communities were prominently different among the four land-use types, and the autotrophic populations using bicarbonate as inorganic carbon species were most important for explaining the variations of autotrophic communities among the land-use types. Additionally, total nitrogen and soil organic carbon contents could be the key controlling factors of both ACF rates and structure of autotrophic microbial communities. Eventually, the change of soil properties caused by land-use type substantially affected the activity and community of soil autotrophic microbes, as well as the fate and stability of the assimilated CO2. |
| WOS关键词 | ATMOSPHERIC CO2 ; CARBON-DIOXIDE ; FIXATION ; QUALITY ; NMR ; DYNAMICS ; KEGG |
| 资助项目 | Strategic Priority Research Program of Chinese Academy of Sciences[41573083] ; National Natural Science Foundation of China[U1612441] ; National Natural Science Foundation of China[QianKeZhongYinDi [2021] 4028] ; Chinese Academy of Sciences Light of West China Program ; Natural Science Foundation of Education Department of Guizhou Province ; Central Government Leading Local Science and Technology Development Program ; [XDB40020401] ; [KY [2018] 255] |
| WOS研究方向 | Agriculture |
| 语种 | 英语 |
| WOS记录号 | WOS:001059467300001 |
| 出版者 | ELSEVIER |
| 资助机构 | Strategic Priority Research Program of Chinese Academy of Sciences ; National Natural Science Foundation of China ; Chinese Academy of Sciences Light of West China Program ; Natural Science Foundation of Education Department of Guizhou Province ; Central Government Leading Local Science and Technology Development Program |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/196912]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Yuan, Quan |
| 作者单位 | 1.Chinese Acad Sci, Inst Geochem, State Key Lab Environm Geochem, Guiyang 550081, Peoples R China 2.Guizhou Educ Univ, Sch Geog & Resources, Guiyang 550018, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Chinese Acad Sci, Puding Karst Ecosyst Res Stn, Chinese Ecosyst Res Network, Puding 562100, Guizhou, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Xing,Zhao, Yuan,Liu, Zaihua,et al. Effects of different land-use types on the activity and community of autotrophic microbes in karst soil[J]. GEODERMA,2023,438:10. |
| APA | Liu, Xing,Zhao, Yuan,Liu, Zaihua,Wu, Qiusheng,Wang, Heng,&Yuan, Quan.(2023).Effects of different land-use types on the activity and community of autotrophic microbes in karst soil.GEODERMA,438,10. |
| MLA | Liu, Xing,et al."Effects of different land-use types on the activity and community of autotrophic microbes in karst soil".GEODERMA 438(2023):10. |
入库方式： OAI收割
来源：地理科学与资源研究所
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