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dc.contributor.authorRiddle, M.en
dc.contributor.authorBergström, L.en
dc.contributor.authorSchmieder, F.en
dc.contributor.authorKirchmann, H.en
dc.contributor.authorCondron, Leo M.en
dc.contributor.authorAronsson, H.en
dc.description.abstractPhosphorus derived from agricultural systems has been found to cause eutrophication of surface waters. To combat this, the specific location of soil profile P release is necessary for development of effective mitigation strategies. This paper describes a P leaching study of two Swedish arable soils, an organic (Typic Haplosaprist) and a mineral soil (Typic Hapludalf), both with high P content. Undisturbed soil columns isolated 0- to 20-, 20- to 40-, 40- to 60-, and 60- to 80-cm depth intervals. These were placed in a rainfall simulator and subjected to four 50-mm rainfall events to identify the origin of P leachate as a function of soil depth interval and physicochemical properties. Phosphorus losses were greatest from the two uppermost layers of both soils after 200 mm of artificial rainfall was applied at 5 mm h⁻¹. Total P concentration in leachate from the 0- to 20-cm layer ranged from 2.1 to 8.8 mg L⁻¹ for the mineral and 3.7 to 10.3 mg L⁻¹ from the organic soil, with most (95-100%) in dissolved reactive P form. Degree of P saturation correlated well with total P leaching losses from the organic soil (R = 0.84) but not the mineral soil (R = 0.69), suggesting that the presence of Al and Fe (hydr)oxides has a stronger influence on P leaching in the organic soil. Results indicate that both soils have the potential to contribute concentrations of P above those known to cause eutrophication of surface waters.en
dc.publisherAmerican Society of Agronomy, Crop Science Society of America, and Soil Science Society of Americaen
dc.relationThe original publication is available from - American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America -
dc.rights© The authors and the American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America.en
dc.subjectphosphorus leachingen
dc.subjectsoil analysisen
dc.subjectorganic soilen
dc.subjectmineral soilen
dc.subjectAgronomy & Agricultureen
dc.subject.meshSoil Pollutantsen
dc.titlePhosphorus leaching from an organic and a mineral arable soil in a rainfall simulation studyen
dc.typeJournal Article
lu.contributor.unitLincoln Universityen
lu.contributor.unitFaculty of Agriculture and Life Sciencesen
lu.contributor.unitDepartment of Soil and Physical Sciencesen
dc.subject.anzsrc0503 Soil Sciencesen
dc.subject.anzsrc050304 Soil Chemistry (excl. Carbon Sequestration Science)en
dc.relation.isPartOfJournal of Environmental Qualityen
pubs.organisational-group/LU/Agriculture and Life Sciences
pubs.organisational-group/LU/Agriculture and Life Sciences/SOILS
pubs.organisational-group/LU/Research Management Office
pubs.organisational-group/LU/Research Management Office/QE18

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