Evaluating relationships between sediment chemistry and anoxic phosphorus and iron release across three different water bodies

Loh, Pei Sun; Molot, Lewis A.; Nowak, Eva; Nürnberg, Gertrud K.; Watson, Susan B.; Ginn, Brian K.

doi:10.5268/iw-3.1.533

Cited by 59 publications

(32 citation statements)

References 47 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Internal P loading may also be important in this shallow lake where eutrophication has been linked to declines in water quality ) and increasing nuisance blooms of cyanobacteria . High rates of L gross (mean 11.4 mg TDP·m −2 ·day −1 , range 1.7-22.8 mg TDP·m −2 ·day −1 ; Loh et al 2013) were observed in anoxic core incubations, and there is clear evidence that P fluxes from sediment are important in the P balance of the lake. L net and L gross ranged from 259 to 468 mg TP·m −2 ·year −1 depending on estimation method (Nürnberg and LaZerte 2016).…”

Section: Lake Winnipegmentioning

confidence: 97%

“…Internal P loading appears to be a significant source of P to Lake Simcoe. Measurements of L gross in sediment cores under anoxic conditions averaged 6.3 mg TP·m −2 ·day −1 (Loh et al 2013). On an annual basis, internal P loading was estimated to range from 63 to 97 mg TP·m −2 ·year −1 , depending on estimation methods (Nürnberg Fig.…”

Section: Lake Simcoementioning

confidence: 99%

“…Where data were presented in figures, GraphClick (Bovet 2008) was used to capture values. Some researchers provided their published data to us in spreadsheets (Azevedo 2007;Taranu et al 2010;Ballard 2011;Loh et al 2013;Orihel et al 2015).…”

Section: Literature Searchmentioning

confidence: 99%

See 2 more Smart Citations

Internal phosphorus loading in Canadian fresh waters: a critical review and data analysis

Orihel

Baulch

Casson

et al. 2017

Can. J. Fish. Aquat. Sci.

193

133

View full text Add to dashboard Cite

Many physical, chemical, and biological processes in freshwater ecosystems mobilize the nutrient phosphorus (P) from sediments, which in turn may contribute to the formation of harmful algal blooms. Here, we critically reviewed internal P loading in Canadian fresh waters to understand the geographic patterns and environmental drivers of this important process. From 43 publications, we consolidated 618 estimates of internal P loading from Canadian freshwater ponds, lakes, reservoirs, and coastal wetlands (n = 70). Expressed in terms of total P, short-term gross rates in sediment samples (L gross ) ranged from −27 to 54 mg·m −2 ·day −1 (n = 461), while long-term net rates in whole ecosystems (L net ) ranged from −1694 to 10 640 mg·m −2 ·year −1 (n = 157). The main environmental drivers of this variation were oxygen, pH, geology, and trophic state. Internal P loading tended to be higher during the open-water season and most prominent in small prairie lakes. Priorities for future research on internal P loading should include resolving methodological problems, assessing the relative importance of different mechanisms, examining the influence of anthropogenic activities, and quantifying rates in understudied ecosystems. Résumé :De nombreux processus physiques, chimiques et biologiques dans les écosystèmes d'eau douce mobilisent le phosphore (P), un élément nutritif, des sédiments, ce qui peut favoriser la formation de fleurs d'eau néfastes. Nous avons effectué un examen critique de l'apport interne de P dans les plans d'eau douce canadiens afin de comprendre les motifs de répartition géographique et les facteurs environnementaux qui influent sur cet important processus. À la lumière de 43 publications, nous avons colligé 618 estimations de l'apport interne de P d'étangs, de lacs, de réservoirs et de milieux humides littoraux d'eau douce canadiens (n = 70). Exprimés en termes de P total, les taux d'apport de P à court terme pour les échantillons de sédiments (L gross ) vont de −27 à 54 mg·m -2 ·jour -1 (n = 461), alors que les taux nets à long terme à l'échelle de l'écosystème (L net ) vont de −1694 à 10 640 mg·m -2 ·an -1 (n = 157). Les principaux facteurs environnementaux influant sur ces variations sont l'oxygène, le pH, la géologie et l'état trophique. L'apport interne de P tend à être plus élevé durant la période d'eau libre et le plus marqué dans les petits lacs de prairie. La priorité des travaux futurs sur l'apport interne de P devrait porter sur la résolution de problèmes méthodologiques, l'évaluation de l'importance relative de différents mécanismes, l'examen de l'influence des activités humaines et la quantification des taux dans les écosystèmes sous-étudiés. [Traduit par la Rédaction]

show abstract

Section: Lake Winnipegmentioning

confidence: 97%

Section: Lake Simcoementioning

confidence: 99%

See 1 more Smart Citation

Internal phosphorus loading in Canadian fresh waters: a critical review and data analysis

Orihel

Baulch

Casson

et al. 2017

Can. J. Fish. Aquat. Sci.

193

133

View full text Add to dashboard Cite

show abstract

“…Phosphorus is released from iron-rich sediments as a result of changes in oxygen conditions at the sedimentwater interface (Nürnberg 1984, Jeppesen et al 2005, Kagalou et al 2008, Nürnberg 2009, Özkundakci et al 2011, Loh et al 2013, Penning et al 2013. In lakes that stratify for prolonged periods during summer under generally stable meteorological conditions, sediment-derived P may be effectively trapped in the hypolimnion and thus have little or no impact on the epilimnion (Nürnberg 2009).…”

Section: Introductionmentioning

confidence: 99%

Storm-triggered, increased supply of sediment-derived phosphorus to the epilimnion in a small freshwater lake

Crockford

Jordan

Melland

et al. 2015

View full text Add to dashboard Cite

This study investigated internal loading of sediment-derived phosphorus (P) in a small, meso-eutrophic lake (surface area 0.2 km 2 , catchment area 2.7 km 2 , mean depth 6 m, maximum depth 14 m) on the Atlantic seaboard of western Europe. High resolution data collected over 2.5 years (1 Mar 2011 to 30 Sep 2013) revealed inconsistent patterns in (1) the timing and magnitude of lake turnover and (2) the relative importance of the transfer of hypolimnetic sediment-derived P to the epilimnion when compared with external catchment loading. Lake turnover events during spring and summer had the effect of increasing the internal loading of epilimnetic P during the main growing season, thus adding to eutrophication pressure and contributing to algal blooms in the lake. Abrupt pre-fall (autumnal) turnover events and associated increases in eutrophication pressure such as those reported here may become more frequent occurrences in western Europe because of warming-induced increases in Atlantic summer storm frequency and magnitude, and they could counter the apparent effectiveness of measures aimed at reducing eutrophication impacts through limiting external loadings of nutrients from the catchment.

show abstract

“…Due to the fact, that bottom deposits can include more than 90% of the total phosphorus amount in the whole lake ecosystem, they can be a serious threat for the lake water quality if the internal loading phenomenon will occur [Kajak 2001, Kentzer 2001, Pei Sun Loh et al 2013]. Hence, due to the phenomenon of phosphorus internal loading in a lake, the trophic state of a lake is threatened by accelerated eutrophication.…”

Section: Bottom Deposits Of Stratified Seepage Urban Lake (On the Ementioning

confidence: 99%

Bottom Deposits of Stratified, Seepage, Urban Lake (On Example of Tyrsko Lake, Poland) as a Factor Potentially Shaping Lake Water Quality

et al. 2017

View full text Add to dashboard Cite

The object of the study was Tyrsko Lake (area 18.6 ha, max. depth 30.4 m), located in the western part of Olsztyn (Olsztyn Lakeland). This lake is one of the clear water lakes in Olsztyn, but the progressive deterioration of water quality has been observed during recent years. The phosphorus concentration in the water-sediment interface, phosphorus fractions quantity and the amount of components which can bind this element was investigated in the upper (0-5 cm) layer of deposits. The aim of study was to analyze the potential influence of bottom sediment on the lake water quality. The obtained results revealed that the bottom sediment of Tyrsko Lake can be classified as mixed, silica-organic type, with a relatively high content of iron (over 4% Fe in d.w.). The total phosphorus content was ca. 3.5 mg P g -1 d.w. on average. Phosphorus in the bottom sediment was bound mainly with organic matter (NaOH-nrP fraction), which had over 50% share in TP. Highly mobile fractions (NH 4 -Cl-P and BD-P) together only included ca. 5% to 7% TP. The obtained results show that the bottom sediment of Tyrsko Lake can bind phosphorus quite effectively. The calculated internal mineral phosphorus loading during summer stagnation period was 10.9 kg and it was lower that the assessed annual external phosphorus load (22.6 kg). The assessed annual phosphorus loading from both sources was still lower than the critical load according to Vollenweider criteria. However, due to the fact that the internal loading phenomenon is occurring in the lake, it should be taken into consideration that the lake water quality can deteriorate gradually during the longer time perspective. These findings should be accounted for in the future if the potential protection and restoration procedures will be developed.

show abstract

Evaluating relationships between sediment chemistry and anoxic phosphorus and iron release across three different water bodies

Cited by 59 publications

References 47 publications

Internal phosphorus loading in Canadian fresh waters: a critical review and data analysis

Internal phosphorus loading in Canadian fresh waters: a critical review and data analysis

Storm-triggered, increased supply of sediment-derived phosphorus to the epilimnion in a small freshwater lake

Bottom Deposits of Stratified, Seepage, Urban Lake (On Example of Tyrsko Lake, Poland) as a Factor Potentially Shaping Lake Water Quality

Contact Info

Product

Resources

About