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| Gjettermann, B.; Styczen, M.; Hansen, S.; Borggaard, O.K.; Hansen, H.C.B.. |
| Molibility of dissolved organic matter (DOM) strongly affects the export of nitrogen (N) and phosphorus (P) from oils to surface waters. To study the sorption an mobility of dissolved organic C and P (DOC, DOP) in soil, the pH-dependent sorption of DOM to samples from Ap, EB, and Bt horizons from a Danish agircultural Humic Hapludult was investigated and a kinetic model applicable in field-scale model tested. Sorption experiments of 1 to 72 h duration were conducted at two pH levels (pH 5.0 and 7.0) and six initial DOC concentrtions (0-4.7 mmol L-1). Most sorption/desorption occurred during the first few hours. Dissolved organic carbon and DOP sorption decreased strongly with increased pH and desorption dominated at pH 7, especially for DOC. Due to... |
| Tipo: Journal paper |
Palavras-chave: "Organics" in general; Soil. |
| Ano: 2007 |
URL: http://orgprints.org/21007/4/21007.pdf |
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