Uusitalo, Risto (2004) Potential bioavailability of particulate phosphorus in runoff from arable clayey soils. Thesis, MTT Agrifood Research Finland. Agrifood Research Reports, no. 53. .
Runoff phosphorus (P) associated with eroded soil contributes to eutrophication to some extent. The present work examines two methods for estimating the potential bioavailability of particulate P (PP) in runoff, and studies the concentrations and losses of different P forms in surface and subsurface runoff from arable soils. The potential bioavailability of PP was approximated by extraction with (i) anion exchange resin (AER-PP), giving a measure of desorbable PP under aerobic conditions, and with (ii) bicarbonate-dithionite (BD-PP), which dissolves redox-labile PP. Both methods were applied in runoff analysis without sediment preconcentration.
|Thesis Type:||Ph.D. thesis|
|Keywords:||phosphorus, eutrofication, field runoff, bioavailability, environmental risk assessment|
|Subjects:||Environmental aspects > Air and water emissions|
|Research affiliation:||Finland > MTT Agrifood Research|
|Deposited By:||Koistinen, Riitta|
|Deposited On:||13 Aug 2007|
|Last Modified:||12 Apr 2010 07:35|
|Refereed:||Peer-reviewed and accepted|
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