Phosphorus Fractions and Cycling in a Sediment of a Shallow Eutrophic Spring Originated Pond

Abstract

The aim of this study was to quantitatively determine the phosphorus fractional composition of the eutrophicated West Pond sediment using vertical and seasonal changes (positive-upwards and/or negative-downwards) in the phosphorus cycling across the sediment-water, and to examine the most effective potential fraction or fractions on phosphorus release and the pond's eutrophication process. In this study, mean release values of phosphorus in depths and months representing the seasons (April, July, October, January) varied between 9.19 (January, 0-5 cm) and 119.08 µg m -2 d -1 (October, 0-5 cm) in West Pond sediment which supplies water to the Sakaryabaşı Fish Culture and Research Station. The mean negative phosphorus release dependent on months and depths were estimated as 1.25 µg m -2 d -1 (July, 5-10 cm) and 46.45 µg m -2 d -1 (October, 10-15 cm). The distribution of phosphorus fractions in the pond sediment: total organically bound phosphorus fraction (Org≈P) > calcium bound phosphorus fraction (Ca≈P)> carbonate bound phosphorus fraction (CO 3 ≈P) > iron + aluminum bound phosphorus fraction (Fe+Al≈P). In line with research findings the negative phosphorus release dependent on months and depths have revealed quantitatively that West Pond sediment is a sink not a source in terms of phosphorus. In the light of this, conservation of the aquatic macrophytes, role in preventing/suppressing the dissolved inorganic phosphorus release from sediment to overlying water, suggested as the best management technique of West Pond.

Review of 15 Years of Research on Sediment Heavy Metal Contents and Sediment Nutrient Release in Inland Aquatic Ecosystems, Turkey

“…Phosphorus fractions were observed to be distributed in the pond sediment as follows: total organically bound phosphorus fraction (Org ≈ P) > calcium bound phosphorus fraction (Ca ≈ P) > carbonate bound phosphorus fraction (CO ≈ P) > iron + aluminum bound phosphorus fraction (Fe + Al ≈ P). Similar to previous research results, the negative phosphorus release dependent on months and depths has quantitatively shown a very low flux [44]. Another study of West Pond on the topic of nitrogen release from the sediment to the water, estimated inorganic nitrogen (ammonium-nitrate) flux in months representing the seasons (April, July, October, January.…”

The spatio-temporal distribution of alkaline phosphatase activity and phoD gene abundance and diversity in sediment of Sancha Lake

“…Phosphorus in sediments would be released into the overlying water through physical, chemical and biological interactions between sediment and overlying water 7 . Microorganisms played a crucial role in the phosphorus cycle at the sediment–water interface and the endogenous phosphorus release from sediments 8 . According to the method for phosphorus fraction in sediment developed under the frame of Standard Measurements and Testing (SMT) Program of the European Commission, the phosphorus forms in the sediments were classified into total phosphorus (TP), organic phosphorus (OP), inorganic phosphorus (IP), NaOH-P and HCl-P.…”

Evaluation of Bacteria Abundance and Sediment-Water Quality Parameters in a Spring Originated Shallow Pond Sediment

“…Studies on the pond in recent years have examined the topics of nitrogenphosphorus fractions in the sediment and sediment pore water and nitrogen-phosphorus release from the sediment (Pulatsü et al, 2003;Topçu and Pulatsü, 2011;Topçu and Pulatsü, 2014). Accordingly, the present study aimed to prepare a scientific foundation upon which to base recommendations for management of the pond.…”