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Changes in nutrient leaching and groundwater quality during long-term studies of an arable field on the Swedish south-west coast

Ulén, Barbro and Johansson, Göran and Simonsson, Magnus (2008). Changes in nutrient leaching and groundwater quality during long-term studies of an arable field on the Swedish south-west coast. Nordic hydrology. 39:1, 63-77
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Official URL: http://www.iwaponline.com/nh/toc.htm

Abstract

The aim of this study was to evaluate the long-term (1977-2004) effects of new agricultural practices and reduced acid rain on drainwater and groundwater chemistry for an intensely cultivated arable field with sandy soil in south-west Sweden. Trends in chemical composition of the drainwater were compared with those of atmospheric deposition and groundwater. A modified crop rotation including catch crops significantly decreased the average concentration of nitrate nitrogen (NO3-N) in drainwater from 13.0 to 7.2 mg l-l. This rotation was also found to be a very effective measure against high NO3-N concentrations in shallow groundwater (>1.7 m below the soil surface). The degree of phosphorus saturation (DPS) in the subsoil, calculated to be 10% and 9% by two different laboratory methods, corresponded to an average and constant concentration of dissolved reactive phosphate (DRP) in drainwater of 0.006 mg l-l. Generally lower inputs of acid deposition to the soil were confirmed by a decreasing SO4-S trend (by 3% over 24 years) in drainwater. Changes in cropping had reduced the effect of acid load to the soil, while drainwater alkalinity showed a slow but significant positive trend amounting to 0.4% over 24 years.

Authors/Creators:Ulén, Barbro and Johansson, Göran and Simonsson, Magnus
Title:Changes in nutrient leaching and groundwater quality during long-term studies of an arable field on the Swedish south-west coast
Series/Journal:Nordic hydrology (0029-1277)
Year of publishing :2008
Volume:39
Number:1
Page range:63-77
Publisher:IWA Publishing
ISSN:0029-1277
Language:English
Additional Information:©IWA Publishing 2008. The definitive peer-reviewed and edited version of this article is published in Nordic Hydrology 31(1) p. 63-77 2008 DOI:10.2166/nh.2008.030 and is available at www.iwapublishing.com
Publication Type:Journal article
Refereed:Yes
Full Text Status:Public
Subjects:Obsolete subject words > FORESTRY, AGRICULTURAL SCIENCES and LANDSCAPE PLANNING > Plant production > Agronomy
Obsolete subject words > FORESTRY, AGRICULTURAL SCIENCES and LANDSCAPE PLANNING > Soil science
Keywords:drainwater, groundwater, ionic balance, nutrients, trends, water chemistry
URN:NBN:urn:nbn:se:slu:epsilon-8-856
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-8-856
ID Code:3460
Department:(NL, NJ) > Dept. of Soil Sciences
Deposited By: Harriet Thuné
Deposited On:28 Oct 2010 00:00
Metadata Last Modified:02 Dec 2014 10:21

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