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
[Journal article]
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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 Name/Journal: | Nordic hydrology |
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 (until 081001) |
Deposited By: | Harriet Thuné |
Deposited On: | 28 Oct 2010 00:00 |
Metadata Last Modified: | 02 Dec 2014 10:21 |
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