SSSA Division: Soil Physics Session: Revisiting the Most Important Curve in Soil Physics: I (ASA, CSSA and SSSA International Annual Meetings)

170 Revisiting the Most Important Curve in Soil Physics: I

Oral Session

SSSA Division: Soil Physics

Since Edgar Buckingham successfully created the first soil water characteristic (SWC) curve in 1907, its importance for various hydrological and agricultural processes and applications has been reemphasized in recent times. This session highlights latest advancements in SWC measurement technology and modeling. Contributions that include but are not limited to the following topics are encouraged: (1) novel measurement methods that increase SWC measurement accuracy and speed from saturation to oven-dry conditions; (2) new modeling concepts, which accurately describe the SWC from saturation to oven-dryness; (3) linking SWC measurements with emerging direct visualization methods (e.g. X-ray CT) to understand pore-network structure, shape, connectivity, and functions; and (4) cross-disciplinary studies about extracting useful information from measured SWC curves and linking these to soil life-support processes including water, solute and gas fluxes, bioactivity and biodiversity.

Monday, November 3, 2014: 1:00 PM-5:00 PM

Renaissance Long Beach, Renaissance Ballroom II

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Organizers:

Emmanuel Arthur and Dan Karup Jensen

Presiders:

Emmanuel Arthur and Dan Karup Jensen

1:00 PM

Introductory Remarks

1:05 PM

170-1

Moving Away from the Lamppost of the Most Important Curve in Soil Physics.
Hans-Joerg Vogel, Helmholtz Centre for Environmental Research - UFZ

Audio File Recorded Presentation

1:35 PM

170-2

Expanding the Soil Water Characteristic Curve to Feed the World with Less Water.
Alvin J.M. Smucker, Michigan State University; Andrey K. Guber, Michigan State University; Mahdi Ibrahim Aoda, University of Baghdad

Audio File Recorded Presentation

1:50 PM

170-3

Hydraulic Equilibrium: Is It Ever Reached?.
Sara E. Vero, TEAGASC; Rachel E. Creamer, Teagasc; Mark G. Healy, National University of Ireland, Galway; Tiernan Henry, National University of Ireland Galway; Tristan G. Ibrahim, Dept. for Environment, Food and Rural Affairs; Karl G Richards, Teagasc; Owen Fenton, TEAGASC

Audio File Recorded Presentation

2:05 PM

170-4

Moisture Sorption at High Temperature and Low Water Potential Affects Water Content Measurements.
Gaylon S. Campbell, Decagon Devices, Inc.; Kahlin Wacker, Decagon Devices, Inc.

Audio File Recorded Presentation

2:20 PM

170-5

Can the Dry-End (-1 to -1000 MPa) Soil Water Characteristic Curve be Well Characterized with a Single Point?.
Douglas R. Cobos, Decagon Devices, Inc.; Leonardo Daniel Rivera, Decagon Devices, Inc.; Gaylon S. Campbell, Decagon Devices, Inc.

Audio File Recorded Presentation

2:35 PM

170-6

Impact of Texture, Bulk Density, and Organic Carbon on the Soil Water Characteristic from Oven Dryness to Saturation.
Dan Karup Jensen, Aarhus University; Per Moldrup Sr., Aalborg University; Emmanuel Arthur, Aarhus University; Markus Tuller, University of Arizona; Lis W. de Jonge, Aarhus University

Audio File Recorded Presentation

2:50 PM

170-7

Closing the Loop: Measurement of the Complete Soil Water Retention Curve Between Positive and Negative Pore Water Pressure.
Ning Lu, Colorado School of Mines; Alexandra Wayllace, Colorado School of Mines

Audio File Recorded Presentation

3:05 PM

Break

3:15 PM

170-8

Soil Hydraulic Functions Revisited: Challenges and Solutions.
Wolfgang Durner, Technische Universität Braunschweig, Institute of Geoecology; Sascha Iden, TU Braunschweig, Institute of Geoecology, Department Soil Science and Soil Physics; Andre Peters, Technische Universität Berlin; Efstathios Diamantopoulos, TU Braunschweig, Institute of Geoecology, Department Soil Science and Soil Physics; Kai Germer, Technische UniversitÃƒÂ¤t Braunschweig; Tobias KD Weber, TU Braunschweig, Institute of Geoecology, Department Soil Science and Soil Physics; Benedikt Scharnagl, UFZ - Helmholtz Centre for Environmental Research

Audio File Recorded Presentation

3:30 PM

170-9

An Extension of Gardner's Model for the Hydraulic Conductivity Curve.
Theophilo Benedicto Ottoni Filho Sr., Federal University of Rio de Janeiro; Marlon Giovanni Lopes Alvarez Sr., State University of Rio de Janeiro; Arthur Bernardo Barbosa Dib Amorim Sr., Federal University of Rio de Janeiro

Audio File Recorded Presentation

3:45 PM

170-10

Closed-Form Model for Hysteretic Hydraulic Properties Based on Angular Pores with Variable Contact Angles.
Efstathios Diamantopoulos, TU Braunschweig, Institute of Geoecology, Department Soil Science and Soil Physics; Wolfgang Durner, TU Braunschweig, Institute of Geoecology, Department Soil Science and Soil Physics

Audio File Recorded Presentation

4:00 PM

170-11

Determination of the Tangential Model Soil Water Retention Curves for Various Soil Types.
Hirotaka Saito, Tokyo University of Agriculture & Technology; Yuji Kohgo, Tokyo University of Agriculture and Technology; Thiam Magatt, Tokyo University of Agriculture and Technology

4:15 PM

170-12

Estimation of Soil Freezing Curve Based on Water Retention Curve Measured with a Vapor Sorption Analyzer.
Kunio Watanabe, Mie University; Yurie Osada, Mie University; Nobuo Toride, Mie University

Audio File Recorded Presentation

4:30 PM

170-13

Hysteresis Phenomenon and Threshold Water Potentials for Cranberry Irrigation.
Jean Caron, Laval University; Simon Bonin, Fruit d'or; Steeve Pepin, Université Laval; Clay Vanderleest, University of Wisconsin; William L. Bland, University of Wisconsin-Madison

Audio File Recorded Presentation

4:45 PM

170-14

Relating Soil Specific Surface Area, Water Film Thickness and Water Vapor Adsorption.
Tairone Paiva Leao, Universidade de Brasilia; Markus Tuller, University of Arizona

Audio File Recorded Presentation

5:00 PM

Adjourn

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