Liesbeth Bouckaert
Ghent University
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Featured researches published by Liesbeth Bouckaert.
Soil Research | 2013
Liesbeth Bouckaert; Steven Sleutel; Denis Van Loo; Loes Brabant; Veerle Cnudde; Luc Van Hoorebeke; Stefaan De Neve
Soil pore network effects on organic matter turnover have, until now, been studied indirectly because of lack of data on the 3D structure of the pore network. Application of X-ray computed tomography (X-ray CT) to quantify the distribution of pore neck size and related pore sizes from undisturbed soil cores, with simultaneous assessment of carbon (C) mineralisation, could establish a relationship between soil organic matter (SOM) decomposition and soil pore volumes. Eighteen miniature soil cores (diameter 1.2 cm, height 1.2 cm) covering a range of bulk densities were incubated at 20°C for 35 days. Respiration was modelled with a parallel first- and zero-order kinetic model. The cores were scanned at 9.44 µm resolution using an X-ray CT scanner developed in-house. Correlation analysis between the slow pool C mineralisation rate, ks, and pore volume per pore neck class yielded significant (P 350 µm pore neck classes, respectively. Because larger pores are most probably mainly air-filled, a positive relation with ks was ascribed to enhanced aeration of smaller pores surrounding large pores. The weak and insignificant relationship between the smallest pore neck class (<9.44 µm) and ks could be explained by obstructed microbial activity and mobility or diffusion of exo-enzymes and hydrolysis products as a result of limited oxygen availability. This study supports the hypothesis that the impact of soil structure on microbial processes occurs primarily via its determination of soil water distribution, which is possibly the main driver for the location of C mineralisation in the soil matrix.
Soil Biology & Biochemistry | 2013
Nele Ameloot; Stefaan De Neve; Kanagaratnam Jegajeevagan; Güray Yildiz; David Buchan; Yvonne Nkwain Funkuin; Wolter Prins; Liesbeth Bouckaert; Steven Sleutel
Biogeosciences | 2011
F. E. Moyano; N. Vasilyeva; Liesbeth Bouckaert; F. Cook; J. M. Craine; J. Curiel Yuste; A. Don; Daniel Epron; P. Formanek; A. Franzluebbers; U. Ilstedt; Thomas Kätterer; V. Orchard; Markus Reichstein; A. Rey; L. Ruamps; Jens-Arne Subke; I. K. Thomsen; Claire Chenu
Geoderma | 2010
Philippe C. Baveye; Magdeline Laba; Wilfred Otten; Liesbeth Bouckaert; Patricia Dello Sterpaio; Rohit R. Goswami; D. Grinev; Alasdair N. Houston; Yaoping Hu; Jianli Liu; Sacha J. Mooney; Radoslaw Pajor; Steven Sleutel; Ana M. Tarquis; Wei Wang; Qiao Wei; Mehmet Sezgin
Soil Biology & Biochemistry | 2012
Steven Sleutel; Liesbeth Bouckaert; David Buchan; D. Van Loo; Wim Cornelis; H.G. Sanga
Soil Biology & Biochemistry | 2013
Liesbeth Bouckaert; Denis Van Loo; Nele Ameloot; David Buchan; Luc Van Hoorebeke; Steven Sleutel
Geochimica et Cosmochimica Acta | 2009
Liesbeth Bouckaert; Denis Van Loo; Steven Sleutel; Stefaan De Neve; Patric Jacobs; Luc Van Hoorebeke
1st International conference on Tomography of Materials and Structures (ICTMS 2013) | 2013
Steven Sleutel; Liesbeth Bouckaert; Denis Van Loo; Luc Van Hoorebeke; Stefaan De Neve
Young Soil Scientists Day 2012 | 2012
Liesbeth Bouckaert; Denis Van Loo; Steven Sleutel; Nele Ameloot; David Buchan; Luc Van Hoorebeke; Stefaan De Neve
Archive | 2012
Liesbeth Bouckaert