TR32-Database: Database of Transregio 32

[795] - Geophysical Methods for Field-Scale Imaging of Root Zone Properties and Processes

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Vanderborght, J., Huisman, J. A., van der Kruk, J., Vereecken, H., 2013. Geophysical Methods for Field-Scale Imaging of Root Zone Properties and Processes. In: Anderson, S.H., Hopmans, J.W. (Eds.): Soil–Water–Root Processes: Advances in Tomography and Imaging. Soil Science Society of America, Madison, USA, 247 - 282. DOI: 10.2136/sssaspecpub61.c12.
Title(s):Main Title: Geophysical Methods for Field-Scale Imaging of Root Zone Properties and Processes
Description(s):Abstract: Geophysical methods offer the possibility to image noninvasively three-dimensional subsurface structures of soil properties and associated flow and transport processes at spatial scales ranging from soil columns to whole field plots. Measured geophysical properties can be related to soil state variables, such as soil moisture and salt concentration, soil properties, such as clay content, and root properties, such as root mass and surface area. Because of their noninvasive nature, time lapse geophysical measurements can be used to monitor spatial patterns of processes such as water flow, root water uptake, and solute transport in soils. Geophysical methods have also been used to detect the presence of roots and to characterize the architecture, distribution and density of roots. Exciting research questions dealing with the feedback between vegetation, soil heterogeneity and soil moisture patterns, such as row-inter row variations, effects of three-dimensional root system of trees, redistribution of rainfall by canopies and stem flow, re-infiltration of runoff in vegetated patches, could all be addressed using geophysical methods. In this contribution, we give an overview of geophysical methods that show the greatest promise in plant-root related research: electrical resistivity tomography (ERT), electrical impedance spectroscopy and tomography (EIT), and ground penetrating radar (GPR). For each method, we discuss the geoelectrical (soil) properties they measure, their relation to soil state variables and properties, and their ability to directly detect roots. We will also present examples of applications of these methods to noninvasively study soil–root interactions.
Identifier(s):DOI: 10.2136/sssaspecpub61.c12
Responsible Party
Creator(s):Author: Jan Vanderborght
Author: Johan A. Huisman
Author: Jan van der Kruk
Author: Harry Vereecken
Publisher:Soil Science Society of America
TR32 Topic:Soil
Subject(s):CRC/TR32 Keywords: EIT, ERT, GPR, Geophysics
File Details
File Name:2013_Vanderborght_SSSA_Metadata
Data Type:Text
Date(s):Issued: 2013-07-30
Download Permission:OnlyTR32
General Access and Use Conditions:For internal use only
Access Limitations:For internal use only
Licence:TR32DB Data policy agreement
North:-no map data
Measurement Region:None
Measurement Location:--None--
Specific Informations - Publication
Type:Book Section
Book Title:Soil–Water–Root Processes: Advances in Tomography and Imaging
Book Editor:Anderson, S.H., Hopmans, J.W.
SeriesTitle:SSSA Special Publication
City:Madison, USA
Number Of Pages:36
Page Range:247 - 282
Metadata Details
Metadata Creator:Jan Vanderborght
Metadata Created:2013-12-10
Metadata Last Updated:2013-12-12
Funding Phase:2
Metadata Language:English
Metadata Version:V40
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