Abstract
Nitrogen and phosphorus releases from swamp water,Cyperus papyrus plant organs and papyrus swamp sediments were investigated over five weeks. The release of nutrients by dissolution of decomposing organic matter was very important for the swamp water under the prevailing anaerobic conditions. Large amounts of nutrients were found in the incubation water with plant organs and sediments within the first 48 hours. Leaching of the nutrients from the plant organs and sediment caused high initial values. Subsequently decomposition of the organic material caused slight changes in the nutrient levels in the water. Probably denitrification played a role in the nitrogen dynamics, while phosphorus was mineralized.
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