Particle size-related phosphate binding and P-release at the sediment–water interface in a shallow German lake

Selig, Uwe

doi:10.1023/a:1024865828601

Cited by 60 publications

(30 citation statements)

References 60 publications

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“…The intensity of this process may cause the formation of thin anaerobic microlayers in sediments and, therefore, the reduction of sulfur compounds and the immobilization of Fe (Kleeberg and Kozerski 1997). However, in anaerobic conditions, as Sellig (2003) reported, bioavaiable forms of phosphorus are released, which can stimulate primary production, as well as the production of macroalgae. Nevertheless, when at the sediment-water interface within the littoral a low concentration of dissolved oxygen occurred, significant amounts of phosphorus might be released (Andersen and Ring 1999).…”

Section: Discussionmentioning

confidence: 94%

“…Nevertheless, in shallow water bodies it is much more important for water quality than in deeper reservoirs, as the area of the sediments that are in contact with the epilimnion is much greater in relation to the water volume (Granéli 1999, Søndergaard et al 2003. The release of phosphorus from bottom sediments in shallow reservoirs occurs in two ways (1) the release on the watersediment interface and diffusion of dissolved phosphorus to the entire water volume and (2) the wind-induced resuspension of sediments (Sellig 2003). The first process is influenced by many factors including bacterial activity, mineralization processes, redox conditions, pH, and the Fe:P ratio.…”

Section: Introductionmentioning

confidence: 99%

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Internal phosphorus loading from bottom sediments of a shallow preliminary reservoir

Dondajewska

2008

Oceanological and Hydrobiological Studies

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The aim of the studies done in a shallow preliminary reservoir (western Poland) was to determine the intensity and seasonal variability of phosphorus release from bottom sediments. Ex situ studies were done using intact sediment cores taken in succeeding seasons at 3 research stations. The highest phosphorus loading was observed in spring (May and April), both in 2005 and 2006. The range of loading was between 23.7 and 66.6 mgP m -2 d -1 . More intensive phosphorus release during warmer months was caused by microbiological decomposition of fresh organic matter, comprised of decaying filamentous algae from the previous vegetation season. Spatial variability resulted from differences in water depth between stations and in the biomass of filamentous green algae in 2005.1

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Section: Discussionmentioning

confidence: 94%

Section: Introductionmentioning

confidence: 99%

Internal phosphorus loading from bottom sediments of a shallow preliminary reservoir

Dondajewska

2008

Oceanological and Hydrobiological Studies

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“…The release of P from sediments is affected by several factors, such as oxygen condition (Selig 2003), bioturbation (Boström et al 1988), temperature, and pH (Boers 1991;Wu et al 2014). Besides those factors, sediment organic matter, iron and iron-to-P ratio, and particle size fractions also have been shown to influence sediment nutrient release.…”

Section: Comparison With Other Regionsmentioning

confidence: 99%

Estimating internal P loading in a deep water reservoir of northern China using three different methods

Qin

Zeng

Zhang

et al. 2016

Environ Sci Pollut Res

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Much attention had been paid to reducing external loading of nutrients to improve water quality, while internal loading from sediment, which has been largely neglected, is also an important source for water eutrophication. The internal load in deep lakes or reservoirs is not easy to be detected and be quantified. In this study, three different methods (mass balance method, Fick's law, and regression equation) were combined to calculate the gross or/and net P release from sediment using limited data. Our results indicated that (1) ); (2) Hot periods of sediment releasing were suggested to occur from March to April and from August to September, which correspond to periods of high risks of algae blooms. The remaining months of the year were shown as net nutrient retention; (3) for the whole region, Baihedam and Chaohekuqu were identified as zones with a higher possibility to release P from sediment. (4) P loading to the Miyun Reservoir was greater in the inflow than in the outflow, suggesting a portion of the inflow P load was retained in the water or sediment; hence, release of sediment P may continue to be a major source of phosphorus in the future.

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“…1) During periods of anoxia or hypoxia, reducing conditions can result in the desorption of phosphate from iron oxyhydroxides at the sediment-water interface, causing diffusion of dissolved phosphate from the sediments into the water column [9][10][11] . 2) Disturbance of the sediment surface, through wind-induced resuspension and bioturbation, can result in the release of P into the water column by either desorption of P from resuspended sediment particles or release of dissolved P from the sediment pore water to the water column, respectively [11][12][13] .…”

Section: Introductionmentioning

confidence: 99%

Laboratory-determined Phosphorus Flux from Lake Sediments as a Measure of Internal Phosphorus Loading

Ogdahl

Steinman

Weinert

2014

JoVE

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Eutrophication is a water quality issue in lakes worldwide, and there is a critical need to identify and control nutrient sources. Internal phosphorus (P) loading from lake sediments can account for a substantial portion of the total P load in eutrophic, and some mesotrophic, lakes. Laboratory determination of P release rates from sediment cores is one approach for determining the role of internal P loading and guiding management decisions. Two principal alternatives to experimental determination of sediment P release exist for estimating internal load: in situ measurements of changes in hypolimnetic P over time and P mass balance. The experimental approach using laboratory-based sediment incubations to quantify internal P load is a direct method, making it a valuable tool for lake management and restoration.Laboratory incubations of sediment cores can help determine the relative importance of internal vs. external P loads, as well as be used to answer a variety of lake management and research questions. We illustrate the use of sediment core incubations to assess the effectiveness of an aluminum sulfate (alum) treatment for reducing sediment P release. Other research questions that can be investigated using this approach include the effects of sediment resuspension and bioturbation on P release.The approach also has limitations. Assumptions must be made with respect to: extrapolating results from sediment cores to the entire lake; deciding over what time periods to measure nutrient release; and addressing possible core tube artifacts. A comprehensive dissolved oxygen monitoring strategy to assess temporal and spatial redox status in the lake provides greater confidence in annual P loads estimated from sediment core incubations.

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Particle size-related phosphate binding and P-release at the sediment–water interface in a shallow German lake

Cited by 60 publications

References 60 publications

Internal phosphorus loading from bottom sediments of a shallow preliminary reservoir

Internal phosphorus loading from bottom sediments of a shallow preliminary reservoir

Estimating internal P loading in a deep water reservoir of northern China using three different methods

Laboratory-determined Phosphorus Flux from Lake Sediments as a Measure of Internal Phosphorus Loading

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