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Links between soil properties and steady-state solute transport through cultivated topsoil at the field scale

Koestel, Johannes and Norgaard, Trine and Luong, N. M. and Vendelboe, Anders and Moldrup, Per and Jarvis, Nicholas and Lamandé, Mathieu and Iversen, Bo V. and de Jonge, Lis W. (2013). Links between soil properties and steady-state solute transport through cultivated topsoil at the field scale. Water resources research. 49:2, 1-18
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Official URL: http://dx.doi.org/10.1002/wrcr.20079

Abstract

It is known that solute transport through soil is heterogeneous at all spatial scales. However, little data are available to allow quantification of these heterogeneities at the field scale or larger. In this study, we investigated the spatial patterns of soil properties, hydrologic state variables, and tracer breakthrough curves (BTCs) at the field scale for the inert solute transport under a steady-state irrigation rate which produced near-saturated conditions. Sixty-five undisturbed soil columns approximately 20 cm in height and diameter were sampled from the loamy topsoil of an agricultural field site in Silstrup (Denmark) at a sampling distance of approximately 15 m (with a few exceptions), covering an area of approximately 1 ha (60 m x 165 m). For 64 of the 65 investigated soil columns, we observed BTC shapes indicating a strong preferential transport. The strength of preferential transport was positively correlated with the bulk density and the degree of water saturation. The latter suggests that preferential macropore transport was the dominating transport process. Increased bulk densities were presumably related with a decrease in near-saturated hydraulic conductivities and as a consequence to larger water saturation and the activation of larger macropores. Our study provides further evidence that it should be possible to estimate solute transport properties from soil properties such as soil texture or bulk density. We also demonstrated that estimation approaches established for the column scale have to be upscaled when applied to the field scale or larger. Citation: Koestel, J. K., T. Norgaard, N. M. Luong, A. L. Vendelboe, P. Moldrup, N. J. Jarvis, M. Lamande, B. V. Iversen, and L. Wollesen de Jonge (2013), Links between soil properties and steady-state solute transport through cultivated topsoil at the field scale, Water Resour. Res., 49, doi: 10.1002/wrcr.20079.

Authors/Creators:Koestel, Johannes and Norgaard, Trine and Luong, N. M. and Vendelboe, Anders and Moldrup, Per and Jarvis, Nicholas and Lamandé, Mathieu and Iversen, Bo V. and de Jonge, Lis W.
Title:Links between soil properties and steady-state solute transport through cultivated topsoil at the field scale
Series/Journal:Water resources research (0043-1397)
Year of publishing :2013
Volume:49
Number:2
Page range:1-18
Number of Pages:18
Publisher:American Geophysical Union
ISSN:0043-1397
Language:English
Additional Information:Published with permission of American Geophysical Union
Publication Type:Journal article
Refereed:Yes
Article category:Scientific peer reviewed
Version:Published version
Full Text Status:Public
Agris subject categories.:P Natural resources > P30 Soil science and management
Subjects:(A) Swedish standard research categories 2011 > 4 Agricultural Sciences > 401 Agricultural, Forestry and Fisheries > Soil Science
(A) Swedish standard research categories 2011 > 4 Agricultural Sciences > 405 Other Agricultural Sciences > Environmental Sciences related to Agriculture and Land-use
(A) Swedish standard research categories 2011 > 1 Natural sciences > 105 Earth and Related Environmental Sciences > Other Earth and Related Environmental Sciences
Agrovoc terms:Soil properties, Soil texture, Bulk density, solute transport in soil
Keywords:Soil properties, Spatial patterns, Hydrologic state variables, Tracer breakthrough curves, Soil texture, Bulk density, Solute transport properties
URN:NBN:urn:nbn:se:slu:epsilon-e-1876
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-e-1876
Additional ID:
Type of IDID
Web of Science (WoS)000317828600009
DOI10.1002/wrcr.20079
ID Code:11074
Faculty:NL - Faculty of Natural Resources and Agricultural Sciences (until 2013)
Department:(NL, NJ) > Dept. of Soil and Environment
(S) > Dept. of Soil and Environment
Deposited By: SLUpub Connector
Deposited On:24 Apr 2014 14:47
Metadata Last Modified:02 Dec 2014 11:05

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