Nitrate leaching from a small catchment in central England
Identifieur interne : 000740 ( Istex/Corpus ); précédent : 000739; suivant : 000741Nitrate leaching from a small catchment in central England
Auteurs : D. M. Cooper ; G. RobertsSource :
- Soil Use and Management [ 0266-0032 ] ; 1996-12.
English descriptors
- KwdEn :
- Nitrate, UK, leaching, watersheds.
Abstract
Abstract. Flow and nitrate concentrations were measured weekly for four years at twelve stream‐water monitoring sites in a catchment in the English Midlands designated as a Nitrate Advisory Area. Farm surveys and satellite images have provided soil and land use information. Measurements show the nitrate load to be dominated by discharge, with large variability due to differing weather conditions from year to year. Within‐year variability in nitrate concentrations is also related to weather conditions, with high concentrations when field capacity is reached if this occurs late in the year. There is also clear evidence of dilution of nitrate during intense storms. The effect of changing weather conditions makes it impossible to identify catchment‐scale changes in leaching due to changes in agricultural practice over a period as short as four years. Measurements from a major spring in the catchment show an increasing trend in nitrate concentrations through the period. There is some evidence that the greatest N leaching to streams in the catchment is associated with intensive grassland on soils which are naturally poorly drained.
Url:
DOI: 10.1111/j.1475-2743.1996.tb00541.x
Links to Exploration step
ISTEX:8766F657354417BC6CA5081DB940ED9255F557F6Le document en format XML
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Roberts</name><affiliation><mods:affiliation>Institute of Hydrology, Maclean Building, Crowmarsh Gifford, Wallingford, Oxfordshire OX10 8BB, UK.</mods:affiliation></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">ISTEX</idno><idno type="RBID">ISTEX:8766F657354417BC6CA5081DB940ED9255F557F6</idno><date when="1996" year="1996">1996</date><idno type="doi">10.1111/j.1475-2743.1996.tb00541.x</idno><idno type="url">https://api.istex.fr/document/8766F657354417BC6CA5081DB940ED9255F557F6/fulltext/pdf</idno><idno type="wicri:Area/Istex/Corpus">000740</idno><idno type="wicri:explorRef" wicri:stream="Istex" wicri:step="Corpus" wicri:corpus="ISTEX">000740</idno></publicationStmt><sourceDesc><biblStruct><analytic><title level="a" type="main" xml:lang="en">Nitrate leaching from a small catchment in central England</title><author><name sortKey="Cooper, D M" sort="Cooper, D M" uniqKey="Cooper D" first="D. M." last="Cooper">D. M. Cooper</name><affiliation><mods:affiliation>Institute of Hydrology, Maclean Building, Crowmarsh Gifford, Wallingford, Oxfordshire OX10 8BB, UK.</mods:affiliation></affiliation></author><author><name sortKey="Roberts, G" sort="Roberts, G" uniqKey="Roberts G" first="G." last="Roberts">G. 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Flow and nitrate concentrations were measured weekly for four years at twelve stream‐water monitoring sites in a catchment in the English Midlands designated as a Nitrate Advisory Area. Farm surveys and satellite images have provided soil and land use information. Measurements show the nitrate load to be dominated by discharge, with large variability due to differing weather conditions from year to year. Within‐year variability in nitrate concentrations is also related to weather conditions, with high concentrations when field capacity is reached if this occurs late in the year. There is also clear evidence of dilution of nitrate during intense storms. The effect of changing weather conditions makes it impossible to identify catchment‐scale changes in leaching due to changes in agricultural practice over a period as short as four years. Measurements from a major spring in the catchment show an increasing trend in nitrate concentrations through the period. 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Farm surveys and satellite images have provided soil and land use information. Measurements show the nitrate load to be dominated by discharge, with large variability due to differing weather conditions from year to year. Within‐year variability in nitrate concentrations is also related to weather conditions, with high concentrations when field capacity is reached if this occurs late in the year. There is also clear evidence of dilution of nitrate during intense storms. The effect of changing weather conditions makes it impossible to identify catchment‐scale changes in leaching due to changes in agricultural practice over a period as short as four years. Measurements from a major spring in the catchment show an increasing trend in nitrate concentrations through the period. 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Farm surveys and satellite images have provided soil and land use information. Measurements show the nitrate load to be dominated by discharge, with large variability due to differing weather conditions from year to year. Within‐year variability in nitrate concentrations is also related to weather conditions, with high concentrations when field capacity is reached if this occurs late in the year. There is also clear evidence of dilution of nitrate during intense storms. The effect of changing weather conditions makes it impossible to identify catchment‐scale changes in leaching due to changes in agricultural practice over a period as short as four years. Measurements from a major spring in the catchment show an increasing trend in nitrate concentrations through the period. There is some evidence that the greatest N leaching to streams in the catchment is associated with intensive grassland on soils which are naturally poorly drained.</p></abstract></abstractGroup></contentMeta></header></component></istex:document></istex:metadataXml><mods version="3.6"><titleInfo lang="en"><title>Nitrate leaching from a small catchment in central England</title></titleInfo><titleInfo type="alternative" contentType="CDATA" lang="en"><title>Nitrate leaching from a small catchment in central England</title></titleInfo><name type="personal"><namePart type="given">D.M.</namePart><namePart type="family">Cooper</namePart><affiliation>Institute of Hydrology, Maclean Building, Crowmarsh Gifford, Wallingford, Oxfordshire OX10 8BB, UK.</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">G.</namePart><namePart type="family">Roberts</namePart><affiliation>Institute of Hydrology, Maclean Building, Crowmarsh Gifford, Wallingford, Oxfordshire OX10 8BB, UK.</affiliation><role><roleTerm type="text">author</roleTerm></role></name><typeOfResource>text</typeOfResource><genre type="article" displayLabel="article"></genre><originInfo><publisher>Blackwell Publishing Ltd</publisher><place><placeTerm type="text">Oxford, UK</placeTerm></place><dateIssued encoding="w3cdtf">1996-12</dateIssued><copyrightDate encoding="w3cdtf">1996</copyrightDate></originInfo><language><languageTerm type="code" authority="rfc3066">en</languageTerm><languageTerm type="code" authority="iso639-2b">eng</languageTerm></language><physicalDescription><internetMediaType>text/html</internetMediaType><extent unit="references">19</extent></physicalDescription><abstract>Abstract. Flow and nitrate concentrations were measured weekly for four years at twelve stream‐water monitoring sites in a catchment in the English Midlands designated as a Nitrate Advisory Area. Farm surveys and satellite images have provided soil and land use information. Measurements show the nitrate load to be dominated by discharge, with large variability due to differing weather conditions from year to year. Within‐year variability in nitrate concentrations is also related to weather conditions, with high concentrations when field capacity is reached if this occurs late in the year. There is also clear evidence of dilution of nitrate during intense storms. The effect of changing weather conditions makes it impossible to identify catchment‐scale changes in leaching due to changes in agricultural practice over a period as short as four years. Measurements from a major spring in the catchment show an increasing trend in nitrate concentrations through the period. There is some evidence that the greatest N leaching to streams in the catchment is associated with intensive grassland on soils which are naturally poorly drained.</abstract><subject lang="en"><genre>keywords</genre><topic>Nitrate</topic><topic>leaching</topic><topic>watersheds</topic><topic>UK</topic></subject><relatedItem type="host"><titleInfo><title>Soil Use and Management</title></titleInfo><genre type="journal">journal</genre><identifier type="ISSN">0266-0032</identifier><identifier type="eISSN">1475-2743</identifier><identifier type="DOI">10.1111/(ISSN)1475-2743</identifier><identifier type="PublisherID">SUM</identifier><part><date>1996</date><detail type="volume"><caption>vol.</caption><number>12</number></detail><detail type="issue"><caption>no.</caption><number>4</number></detail><extent unit="pages"><start>181</start><end>189</end><total>9</total></extent></part></relatedItem><identifier type="istex">8766F657354417BC6CA5081DB940ED9255F557F6</identifier><identifier type="DOI">10.1111/j.1475-2743.1996.tb00541.x</identifier><identifier type="ArticleID">SUM181</identifier><recordInfo><recordContentSource>WILEY</recordContentSource><recordOrigin>Blackwell Publishing Ltd</recordOrigin></recordInfo></mods></metadata><serie></serie></istex></record>Pour manipuler ce document sous Unix (Dilib)
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