Macropores regulate CO2 behavior in an andisol soil
文献类型：期刊论文
| 作者 | Guo, Linlin1,2; Nishimura, Taku2; Imoto, Hiromi2; Sun, Zhigang1 |
| 刊名 | PADDY AND WATER ENVIRONMENT
 |
| 出版日期 | 2018-07-01 |
| 卷号 | 16期号:3页码:391-396 |
| 关键词 | Gas diffusion Macropore Soil CO2 flux Column incubation |
| ISSN号 | 1611-2490 |
| DOI | 10.1007/s10333-018-0632-4 |
| 通讯作者 | Sun, Zhigang(sun.zhigang@igsnrr.ac.cn) |
| 英文摘要 | Macropores resulting from soil pedogenesis, biological activity, and agricultural practices play important roles in soil water, chemical and gas transport; however, seldom studies focus on the effect of soil macropores on CO2 behavior. In this study, a 150-day soil column incubation experiment was conducted to investigate the CO2 behavior in a homogeneous soil column and a soil column with an artificial macropore, which have the same total porosity. The results showed that the cumulative CO2 fluxes observed in the soil with a macropore (57.2 g m(-2)) were higher than those in the homogeneous soil (52.7 g m(-2)). The soil cumulative CO2 fluxes measured using column incubation can fit the kinetic model, and a higher carbon mineralization rate in the soil with the macropore was found. The results of the incubation experiment also suggest that macropore increased the gas diffusivities, and thus decreased the CO2 concentrations in the soil profile. This study proposed a simulation experiment and quantified the effect of macropore on soil CO2 behavior, which could help to understand the mechanism of CO2 emission from soil with macropores especially caused by agricultural practices. |
| WOS关键词 | COMPUTED-TOMOGRAPHY ; AIR PERMEABILITY ; GAS DIFFUSIVITY ; TRANSPORT ; CARBON ; MINERALIZATION ; MODEL ; ENVIRONMENT ; COMPACTION ; TILLAGE |
| WOS研究方向 | Agriculture |
| 语种 | 英语 |
| WOS记录号 | WOS:000440287800001 |
| 出版者 | SPRINGER HEIDELBERG |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/54574]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Sun, Zhigang |
| 作者单位 | 1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, 11A Datun Rd, Beijing 100101, Peoples R China 2.Univ Tokyo, Grad Sch Agr & Life Sci, Bunkyo Ku, 1-1-1 Yayoi, Tokyo 1130032, Japan |
| 推荐引用方式 GB/T 7714 | Guo, Linlin,Nishimura, Taku,Imoto, Hiromi,et al. Macropores regulate CO2 behavior in an andisol soil[J]. PADDY AND WATER ENVIRONMENT,2018,16(3):391-396. |
| APA | Guo, Linlin,Nishimura, Taku,Imoto, Hiromi,&Sun, Zhigang.(2018).Macropores regulate CO2 behavior in an andisol soil.PADDY AND WATER ENVIRONMENT,16(3),391-396. |
| MLA | Guo, Linlin,et al."Macropores regulate CO2 behavior in an andisol soil".PADDY AND WATER ENVIRONMENT 16.3(2018):391-396. |
入库方式： OAI收割
来源：地理科学与资源研究所
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