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Previous No next 		Contents: August 2009, Volume 8, Issue 3   [Index by Author] 
Down REVIEW AND ANALYSIS
Down ORIGINAL RESEARCH
Down TECHNICAL NOTES
Down BOOK REVIEWS
Down SPECIAL SECTION: AGROSPHERE INSTITUTE
Down COMMENTS

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To see an article, click its [Full Text] link. To review many abstracts, check the boxes to the left of the titles you want, and click the 'Get All Checked Abstract(s)' button. To see one abstract at a time, click its [Abstract] link.

REVIEW AND ANALYSISBack

E. H. van den Berg, E. Perfect, C. Tu, P. S. K. Knappett, T. P. Leao, and R. W. Donat

Centrifuges have been used for several decades to determine the unsaturated hydraulic conductivity
Published online 7 July 2009; doi: 10.2136/vzj2008.0119
Vadose Zone J Jul 7 2009: 531–547 [Abstract] [Full Text] [PDF]  

ORIGINAL RESEARCHBack

C.-C. Chung and C.-P. Lin

This study extensively investigated the effects of electrical conductivity, cable length, and dielectric dispersion on various time domain reflectometry apparent dielectric constants and the associated effective frequencies. The implications of these influencing factors on soil moisture content measurements and the
Published online 7 July 2009; doi: 10.2136/vzj2008.0089
Vadose Zone J Jul 7 2009: 548–556 [Abstract] [Full Text] [PDF]  

Shin'ya Katsura, Ken'ichirou Kosugi, Tasuku Mizutani, and Takahisa Mizuyama

Hydraulic properties of intact, variously weathered granitic bedrock cores were measured in the laboratory. Effects of weathering on the hydraulic properties and modes of water flow through weathered bedrock were discussed based on the relationships between weathering degree and core-scale hydraulic properties, core shape, and in situ saturated hydraulic conductivity values.
Published online 7 July 2009; doi: 10.2136/vzj2008.0142
Vadose Zone J Jul 7 2009: 557–573 [Abstract] [Full Text] [PDF]  

Deniz I. Demirkanli, Fred J. Molz, Daniel I. Kaplan, and Robert A. Fjeld

Root Pu uptake and xylem transport was added to an existing reactive transport model to evaluate Pu
Published online 7 July 2009; doi: 10.2136/vzj2008.0159
Vadose Zone J Jul 7 2009: 574–585 [Abstract] [Full Text] [PDF]  

Gonzalo Martinez, Karl Vanderlinden, Rafaela Ordóñez, and José L. Muriel

In a long-term tillage experiment, we used apparent electrical conductivity to define areas
Published online 7 July 2009; doi: 10.2136/vzj2008.0123
Vadose Zone J Jul 7 2009: 586–593 [Abstract] [Full Text] [PDF]  

D. Moret-Fernández, F. Lera, J. L. Arrúe, and M. V. López

Time domain reflectometry probes partially coated with high-dielectric material allows,
Published online 7 July 2009; doi: 10.2136/vzj2008.0144
Vadose Zone J Jul 7 2009: 594–600 [Abstract] [Full Text] [PDF]  

Eran Segal, Peter Shouse, and Scott A. Bradford

Following a conservative tracer in a heterogeneous vadose zone is challenging. To characterize the
Published online 7 July 2009; doi: 10.2136/vzj2008.0173
Vadose Zone J Jul 7 2009: 601–610 [Abstract] [Full Text] [PDF]  

David Russo

First-order analysis was used to analyze the probability density function (PDF) of the logarithm
Published online 7 July 2009; doi: 10.2136/vzj2008.0114
Vadose Zone J Jul 7 2009: 611–622 [Abstract] [Full Text] [PDF]  

Lindsay A. George, Mandar M. Dewoolkar, and Dobroslav Znidarcic

There is great interest in the ability to relate hydraulic properties of unsaturated soils to their acoustic response. Compressional and shear wave velocities and their attenuations, soil water characteristic curves, and unsaturated hydraulic conductivity functions were determined for a full range of saturations for two soil types.
Published online 11 August 2009; doi: 10.2136/vzj2008.0139
Vadose Zone J Aug 11 2009: 633–642 [Abstract] [Full Text] [PDF]  

M. Oostrom, T. W. Wietsma, J. H. Dane, M. J. Truex, and A. L. Ward

A series of detailed, intermediate-scale laboratory experiments, using unsaturated homogeneous and heterogeneous systems, was conducted to improve our understanding of energy balance issues related to soil desiccation. The experiments were subsequently simulated with the multifluid flow simulator STOMP, using independently obtained hydraulic and thermal porous medium properties. The injection of dry air proved to be an effective means for removing essentially all moisture from the test media.
Published online 11 August 2009; doi: 10.2136/vzj2008.0182
Vadose Zone J Aug 11 2009: 643–650 [Abstract] [Full Text] [PDF]  

R. Dann, M. Close, M. Flintoft, R. Hector, H. Barlow, S. Thomas, and G. Francis

A variety of characterization methods were used to derive conceptual understanding and estimates of hydraulic properties of a coarse alluvial gravel vadose zone. Three main types of material were observed--sandy gravels, open framework gravels, and sand lenses--each with differing hydraulic properties resulting in a highly heterogeneous profile.
Published online 11 August 2009; doi: 10.2136/vzj2008.0174
Vadose Zone J Aug 11 2009: 651–663 [Abstract] [Full Text] [PDF]  

TECHNICAL NOTESBack

Stewart B. Wuest

Water flow is not uniform in most soils. We compared dye-marked, high velocity zones with
Published online 7 July 2009; doi: 10.2136/vzj2008.0126
Vadose Zone J Jul 7 2009: 623–627 [Abstract] [Full Text] [PDF]  

Andrea Carminati, Doris Vetterlein, Ulrich Weller, Hans-Jörg Vogel, and Sascha E. Oswald

Roots need to stay in close contact with the soil to take up water. During drought, roots may lose contact due to shrinkage, thereby reducing the capacity for water uptake and limiting water loss from the soil. When water becomes available again, contacts are restored due to root swelling. These dynamics were observed by means of x-ray computed tomography.
Published online 11 August 2009; doi: 10.2136/vzj2008.0147
Vadose Zone J Aug 11 2009: 805–809 [Abstract] [Full Text] [PDF]  

Kamila Spongrová, Cedric Kechavarzi, Marc Dresser, Svatopluk Matula, and Richard J. Godwin

An improved tension infiltrometer for field use, where both water level measurement in the reservoir and tension settings can be automated, was developed. The use of this automated system allows replicated measurements to be taken under the exact same tension with very little operator intervention other than for refilling the reservoir.
Published online 11 August 2009; doi: 10.2136/vzj2008.0135
Vadose Zone J Aug 11 2009: 810–817 [Abstract] [Full Text] [PDF]  

BOOK REVIEWSBack

Blaine Hanson
Field Estimation of Soil Water Content: A Practical Guide to Methods, Instrumentation and Sensor Technology: International Atomic Energy Agency. Vienna, Austria. IAEA-TCS-30. 2008. 131 pp. ISSN 1018-5518.
Published online 7 July 2009; doi: 10.2136/vzj2008.0171
Vadose Zone J Jul 7 2009: 628 [Full Text] [PDF]  

Edmund Perfect
Soils and Environmental Quality, 3rd Edition: Gary M. Pierzynski, J. Thomas Sims, and George F. Vance. CRC Press, Taylor & Francis Group, Boca Raton, FL. 2005. Hardcover. 569 pp. $79.95. ISBN 0-843-1616-2.
Published online 7 July 2009; doi: 10.2136/vzj2008.0187
Vadose Zone J Jul 7 2009: 629–630 [Full Text] [PDF]  

S. R. Grattan
Natural Attenuation of Trace Element Availability in Soils: Edited by Rebecca Hamon, Mike McLaughlin, and Enzo Lombi. Society of Environmental Toxicology and Chemistry (SETAC), Pensacola, FL. 2007. 256 pp. $129.95. ISBN 978-1-4200-4282-5.
Published online 7 July 2009; doi: 10.2136/vzj2009.0001br
Vadose Zone J Jul 7 2009: 631 [Full Text] [PDF]  

Wendy Silk
The Rhizosphere: An Ecological Perspective: Zoe Cardon and Julie Whitbeck, editors. Elsevier Academic Press, Burlington, MA. 2007. 232 pp. $68.95. ISBN 978-0120887750.
Published online 11 August 2009; doi: 10.2136/vzj2008.0175br
Vadose Zone J Aug 11 2009: 822 [Full Text] [PDF]  

SPECIAL SECTION: AGROSPHERE INSTITUTEBack

H. Vereecken, P. Burauel, J. Groeneweg, E. Klumpp, W. Mittelstaedt, H.-D. Narres, T. Pütz, J. van der Kruk, J. Vanderborght, and F. Wendland

This paper introduces the special section on research at the Agrosphere Institute, Forschungszentrum Juelich, Germany. It describes the impact of global change on soil and water resources and summarizes results obtained in the functional analysis of soils and sediments, the development of sensing methods, and in flow and transport modeling.
Published online 11 August 2009; doi: 10.2136/vzj2008.0143
Vadose Zone J Aug 11 2009: 664–669 [Abstract] [Full Text] [PDF]  

A. E. Berns, P. Conte, H. Philipp, E. G. Witte, and H. Lewandowski

A binding study of nitrogen 15-labeled 2-aminobenzothiazole (ABT) and a soil humic acid in the presence of laccase was conducted. Different types of bindings could be identified through nitrogen-15 cross-polarization magic angle spinning spectroscopy and comparison with synthesized derivatives of the labeled ABT that simulated possible chemical bindings.
Published online 11 August 2009; doi: 10.2136/vzj2008.0026
Vadose Zone J Aug 11 2009: 670–676 [Abstract] [Full Text] [PDF]  

M. Unold, J. Simunek, R. Kasteel, J. Groeneweg, and H. Vereecken

Solute displacement experiments with the antibiotic sulfadiazine (SDZ) and its main transformation products in pig manure were performed to investigate the influence of manure on SDZ transport. The fitting process revealed a high mobility of both SDZ and its transformation products.
Published online 11 August 2009; doi: 10.2136/vzj2008.0122
Vadose Zone J Aug 11 2009: 677–689 [Abstract] [Full Text] [PDF]  

Roy Kasteel, Thomas Pütz, Jan Vanderborght, and Harry Vereecken

Bromide was used in transient infiltration experiments in zero-potential lysimeters containing undisturbed soil and in the field. The transferability of the transport behavior between the two systems was investigated and the lateral mass redistribution regime was inferred from the spreading of the solute plume in the field.
Published online 11 August 2009; doi: 10.2136/vzj2008.0024
Vadose Zone J Aug 11 2009: 690–702 [Abstract] [Full Text] [PDF]  

Jost Liebich, Thorsten Wachtmeister, Jizhong Zhou, and Peter Burauel

A rural aquifer was screened for potential microbial activities using a functional gene microarray. Specific microbial atrazine degraders were detected even for conditions of minor levels of atrazine contamination (about 2 micrograms per liter). Microbial communities in these oligotrophic environments appear to be sensitive to relatively small quantities of contaminants.
Published online 11 August 2009; doi: 10.2136/vzj2008.0072
Vadose Zone J Aug 11 2009: 703–710 [Abstract] [Full Text] [PDF]  

J. Koestel, J. Vanderborght, M. Javaux, A. Kemna, A. Binley, and H. Vereecken

We used 3-D time-lapse electrical resistivity tomography (ERT) to noninvasively characterize four solute transport experiments in an unsaturated soil column. We benchmarked ERT-derived apparent transport model parameters at different observation scales using the mass balance, TDR probes, and the effluent breakthrough curve.
Published online 11 August 2009; doi: 10.2136/vzj2008.0027
Vadose Zone J Aug 11 2009: 711–722 [Abstract] [Full Text] [PDF]  

J. Koestel, J. Vanderborght, M. Javaux, A. Kemna, A. Binley, and H. Vereecken

We examined the transport characteristics of four tracer experiments in a large undisturbed soil column under different unsaturated hydraulic boundary conditions using 3-D electrical resistivity tomography (ERT). We compared the transport velocity patterns and derived the mixing regime. We introduced and applied a dispersivity up-scaling approach.
Published online 11 August 2009; doi: 10.2136/vzj2008.0154
Vadose Zone J Aug 11 2009: 723–734 [Abstract] [Full Text] [PDF]  

A. Pohlmeier, S. Haber-Pohlmeier, and S. Stapf

Fast field cycling NMR relaxometry ís used for the determination of distribution functions of spin-lattice relaxation time in saturated samples of sand, sand-loam and silt-loam soils. Estimates of pore size distribution for these samples were obtained by normalizing the spin-lattice relaxation time distribution functions on the specific surface area.
Published online 11 August 2009; doi: 10.2136/vzj2008.0030
Vadose Zone J Aug 11 2009: 735–742 [Abstract] [Full Text] [PDF]  

Sébastien Lambot, Evert Slob, Jan Rhebergen, Olga Lopera, Khan Zaib Jadoon, and Harry Vereecken

We use full-waveform, integrated hydrogeophysical inversion of time-lapse, off-ground GPR data to remotely estimate the unsaturated hydraulic properties of a sand under laboratory conditions. The results suggest that the proposed method is promising for mapping the shallow soil hydraulic properties at the field scale with a high spatial resolution.
Published online 11 August 2009; doi: 10.2136/vzj2008.0058
Vadose Zone J Aug 11 2009: 743–754 [Abstract] [Full Text] [PDF]  

H. R. Bogena, J. A. Huisman, H. Meier, U. Rosenbaum, and A. Weuthen

Hybrid wireless soil moisture networks like the novel SoilNet use a mixture of underground devices each wired to several soil sensors and aboveground router devices. In this study we developed a semi-empirical model to demonstrate that in the case of a 5 cm soil layer data communication over longer distances for most soil conditions is possible.
Published online 11 August 2009; doi: 10.2136/vzj2008.0138
Vadose Zone J Aug 11 2009: 755–761 [Abstract] [Full Text] [PDF]  

M. Herbst, N. Prolingheuer, A. Graf, J. A. Huisman, L. Weihermüller, and J. Vanderborght

Measuring representative average field-scale fluxes of soil heterotrophic respiration with a chamber method is delicate. We investigated the underlying spatial patterns of respiration as related to soil water contents and temperatures and present a method that facilitates determination of an optimum sampling setup.
Published online 11 August 2009; doi: 10.2136/vzj2008.0068
Vadose Zone J Aug 11 2009: 762–771 [Abstract] [Full Text] [PDF]  

L. Weihermüller, J. A. Huisman, A. Graf, M. Herbst, and J.-M. Sequaris

Multistep outflow experiments were performed to estimate soil hydraulic properties as well as carbon dioxide production parameters using the SOILCO2/RothC model. The results indicate that the control parameters of the soil water reduction function can be estimated accurately only if carbon rate constants are adjusted simultaneously with the control parameters.
Published online 11 August 2009; doi: 10.2136/vzj2008.0041
Vadose Zone J Aug 11 2009: 772–782 [Abstract] [Full Text] [PDF]  

Tom Schröder, Mathieu Javaux, Jan Vanderborght, Bernd Körfgen, and Harry Vereecken

In this study, different microscopic modeling approaches were assessed that consider soil hydraulic effects around roots in a three-dimensional, macroscopic, soil-root water flow model. Results showed that local soil hydraulic effects should be considered in soils where their hydraulic properties are lower than root hydraulic properties.
Published online 11 August 2009; doi: 10.2136/vzj2008.0116
Vadose Zone J Aug 11 2009: 783–792 [Abstract] [Full Text] [PDF]  

Jan Mertens, Gunnar Kahl, Bernhard Gottesbüren, and Jan Vanderborght

The study showed that local inverse modeling approaches may result in erroneous parameter uncertainty estimations. Additionally, the advantages of multiobjective inverse modeling are highlighted compared with a sequential single-objective approach. The study was based on observed pesticide leaching lysimeter data; however, conclusions may be extrapolated to a wider range of vadose zone modeling work.
Published online 11 August 2009; doi: 10.2136/vzj2008.0029
Vadose Zone J Aug 11 2009: 793–804 [Abstract] [Full Text] [PDF]  

COMMENTSBack

R. G. Niswonger and D. E. Prudic
Comment on "Evaluating Interactions between Groundwater and Vadose Zone Using the HYDRUS-Based Flow Package for MODFLOW" by Navin Kumar C. Twarakavi, Jirka Simunek, and Sophia Seo
Published online 11 August 2009; doi: 10.2136/vzj2008.0155
Vadose Zone J Aug 11 2009: 818–819 [Full Text] [PDF]  

Navin Kumar C. Twarakavi, Jirka Simunek, and Sophia Seo
Reply to "Comment on ‘Evaluating Interactions between Groundwater and Vadose Zone Using the HYDRUS-based Flow Package for MODFLOW’" by Navin Kumar C. Twarakavi, Jirka Simunek, and Sophia Seo
Published online 11 August 2009; doi: 10.2136/vzj2008.0004L
Vadose Zone J Aug 11 2009: 820–821 [Full Text] [PDF]  

To see an article, click its [Full Text] link. To review many abstracts, check the boxes to the left of the titles you want, and click the 'Get All Checked Abstract(s)' button. To see one abstract at a time, click its [Abstract] link.

JOURNAL HOME HELP CONTACT PUBLISHER SUBSCRIBE ARCHIVE SEARCH TABLE OF CONTENTS
Copyright © 2009 by Soil Science Society of America