Over het archief
Het OWA, het open archief van het Waterbouwkundig Laboratorium heeft tot doel alle vrij toegankelijke onderzoeksresultaten van dit instituut in digitale vorm aan te bieden. Op die manier wil het de zichtbaarheid, verspreiding en gebruik van deze onderzoeksresultaten, alsook de wetenschappelijke communicatie maximaal bevorderen.
Dit archief wordt uitgebouwd en beheerd volgens de principes van de Open Access Movement, en het daaruit ontstane Open Archives Initiative.
Basisinformatie over ‘Open Access to scholarly information'.
| one publication added to basket [239860] |
A budget of bioavailable inorganic phosphorus in the sediment for the western Wadden Sea
In: Journal of Sea Research. Elsevier/Netherlands Institute for Sea Research: Amsterdam; Den Burg. ISSN 1385-1101; e-ISSN 1873-1414, meer
|  |
| Author keywords |
Wadden Sea; Sediments; Phosphorus fractionation; Sorption; Isotherms |
| Auteurs | | Top |
- Leote, C.
- Mulder, L., meer
- Epping, E., meer
|
|
|
| Abstract |
This paper provides quantitative and qualitative information on the sediment P pool for the western Wadden Sea. Total extractable P concentrations in the sediment were lower than 4 mu mol g(-1), with the exception of a depositional area of fine sediment where P concentrations reached 45 mu mol g(-1). Most P was in a non-bioavailable form, with the bioavailable inorganic fraction corresponding to 12-42% of the total extractable pool and being mainly composed of Fe-bound P. A strong negative relationship between median grain size and bioavailable inorganic P content was found based on which a budget was calculated for the periods of maximum (February/March) and minimum (November) content of bioavailable inorganic Pin the top 9 cm's of sediment. The sediment P budget decreased from 1.0 x 10(8) mol in February/March to 0.6 x 10(8) mol in November. Assuming that the seasonal difference was due to the release to the overlying water, an exchange of 4.0 x 10(7) mol of P was estimated, which has the potential to fuel approximately 40% of the current annual primary production of similar to 200 g C m(-2). |
IMIS is ontwikkeld en wordt gehost door het VLIZ.
