globalchange  > 气候变化事实与影响
DOI: 10.5194/hess-18-1805-2014
Scopus记录号: 2-s2.0-84901247908
论文题名:
Coupling X-ray microtomography and macroscopic soil measurements: A method to enhance near-saturation functions?
作者: Beckers E; , Plougonven E; , Gigot N; , Léonard A; , Roisin C; , Brostaux Y; , Degré A
刊名: Hydrology and Earth System Sciences
ISSN: 10275606
出版年: 2014
卷: 18, 期:5
起始页码: 1805
结束页码: 1817
语种: 英语
Scopus关键词: Agriculture ; Soils ; Tomography ; X rays ; Agricultural management practice ; Conductivity measurements ; Macroscopic measurements ; Soil characterization ; Soil measurement ; Structural differences ; Structural parameter ; X ray microtomography ; Soil surveys ; hydraulic conductivity ; pore space ; soil property ; soil structure ; tillage ; tomography
英文摘要: Agricultural management practices influence soil structure, but the characterization of these modifications and consequences are still not completely understood. In this study, we combine X-ray microtomography with retention and hydraulic conductivity measurements in the context of tillage simplification. First, this association is used to validate microtomography information with a quick scan method. Secondly, X-ray microtomography is used to increase our knowledge of soil structural differences. Notably, we show a good match for retention and conductivity functions between macroscopic measurements and microtomographic information. Microtomography refines the shape of the retention function, highlighting the presence of a secondary pore system in our soils. Analysis of structural parameters for these pores appears to be of interest and offers additional clues for soil structure differentiation, through - among others - connectivity and tortuosity parameters. These elements make microtomography a highly competitive instrument for routine soil characterization. copyright © Author(s) 2014.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/78243
Appears in Collections:气候变化事实与影响

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作者单位: Univ. Liège, GxABT, Soil-Water Systems, 2 Passage des Déportés, 5030 Gembloux, Belgium; Univ. Liège, Department of Applied Chemistry, Laboratory of Chemical Engineering, Sart-Tilman, 4000 Liège, Belgium; Walloon Agricultural Research Centre of Gembloux (CRA-W), Department of Agriculture and Natural Environment, Soil Fertility and Water Protection Unit, 4 Rue du Bordia, 5030 Gembloux, Belgium; Univ. Liège, GxABT, Applied Statistics, Computer Science and Mathematics Unit, 2 Passage des Déportés, 5030 Gembloux, Belgium; ICMCB, CNRS/Group 4, 87 Avenue du Docteur Albert Schweitzer, 33608 Pessac, France

Recommended Citation:
Beckers E,, Plougonven E,, Gigot N,et al. Coupling X-ray microtomography and macroscopic soil measurements: A method to enhance near-saturation functions?[J]. Hydrology and Earth System Sciences,2014-01-01,18(5)
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