作者
Britta Gribsholt, Eric Struyf, Anton Tramper, Maria GI Andersson, Natacha Brion, Loreto De Brabandere, Stefan Van Damme, Patrick Meire, Jack J Middelburg, Frank Dehairs, Henricus TS Boschker
发表日期
2006/9
期刊
Biogeochemistry
卷号
80
页码范围
289-298
出版商
Kluwer Academic Publishers
简介
The fate and transport of watershed-derived ammonium in a tidal freshwater marsh fringing the nutrient rich Scheldt River, Belgium, was quantified in a whole ecosystem 15N labeling experiment. In late summer (September) we added 15N-NH 4 + to the flood water entering a 3477 m2 tidal freshwater marsh area, and traced the ammonium processing and retention in four subsequent tide cycles. In this paper we present the results for the water-phase components of the marsh system and compare them to a similar experiment conducted in spring/early summer (May). Changes in concentration and isotopic enrichment of NO 3 − + NO 2 − , N2O, N2, NH 4 + and suspended particulate nitrogen (SPN) were measured in concert with a mass balance study. All analyzed N-pools were labeled, and …
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B Gribsholt, E Struyf, A Tramper, MGI Andersson… - Biogeochemistry, 2006