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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
ISSN号1611-2490
关键词Gas diffusion Macropore Soil CO2 flux Column incubation
DOI10.1007/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
出版者SPRINGER HEIDELBERG
WOS记录号WOS:000440287800001
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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