Mechanisms of Stream Phosphorus Retention: An Experimental Study

D’Angelo, D. J.; Webster, Jackson R.; Benfield, E. F.

doi:10.2307/1467596

Cited by 58 publications

(23 citation statements)

References 30 publications

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“…Physical factors affecting SRP include pH (Holtan et al 1988;Kleeberg and Schlungbaum 1993), temperature (Mulholland et al 1985;Bothwell 1988;Holtan et al 1988;D'Angelo et al 1991;Meals et al 1999), sorption/desorption (Meyer 1979;Hill 1982), interstitial redox conditions (Enell and Lofgren 1988;Holtan et al 1988;Gonsiorczyk and Koschel 1997), and discharge (Meyer 1979). All control P levels in surface water and depending on concentration, can limit biotic production and decomposition Newbold et al 1981;Rosemond et al 2002;Ramirez et al 2003).…”

Section: Introductionmentioning

confidence: 99%

Soluble Reactive Phosphorus Transport and Retention in Tropical, Rainforest Streams Draining a Volcanic and Geothermally Active Landscape in Costa Rica. : Long-Term Concentration Patterns, Pore Water Environment and Response to ENSO Events

et al. 2006

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Soluble reactive phosphorus (SRP) transport/retention was determined at four sites in three rainforest streams draining La Selva Biological Station, Costa Rica. La Selva is located at the base of the last remaining intact rainforest transect from~30 m above sea level to 3000 m along the entire Caribbean slope of Central America. Steam SRP levels can be naturally high there due to regional, geothermal groundwater discharged at ambient temperature. Monitoring since 1988 has revealed distinctive long-term differences in background SRP and total P (TP) for three streams in close proximity, and identified the impact of ENSO (El Nino Southern Oscillation) events on SRP-enriched reaches. Mean interannual SRP concentrations (-standard deviation) were 89 -53lg

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Section: Introductionmentioning

confidence: 99%

Soluble Reactive Phosphorus Transport and Retention in Tropical, Rainforest Streams Draining a Volcanic and Geothermally Active Landscape in Costa Rica. : Long-Term Concentration Patterns, Pore Water Environment and Response to ENSO Events

et al. 2006

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“…Very few studies have assessed the movement and transport of nutrients within the stream ecosystems, especially in pasture-dominated watersheds (Haggard et al, 2001;Macrae et al, 2003). Most studies of nutrient transport and retention have been conducted in nutrient-depleted headwaters such as forested streams and desert streams (D'Angelo at al., 1991;Meyer, 1979;Newbold et al, 1983;Grimm, 1987;Grimm and Fisher, 1986). Understanding solute dynamics and various in-stream processes in pasture-dominated streams may help develop watershed management plans for NPS pollution and provide insight into better ecological management practices in the watershed.…”

mentioning

confidence: 99%

Nutrient Retention, Nutrient Limitation, and Sediment-Nutrient Interactions in a Pasture-Dominated Stream

Chaubey¹,

Sahoo²,

Haggard³

et al. 2007

Transactions of the ASABE

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“…The Nominal Transport Time (NTT) for the reach was calculated as the time taken for 50% of the NaCl to pass between the upstream and downstream sampling sites. The distance between the release point and the sampling site was then divided by the NTT to give the mean velocity of the water flowing through the channel (D'Angelo et al, 1991).…”

Section: Discussionmentioning

confidence: 99%

The transport of fine particulate organic matter in vegetated chalk streams

Warren¹,

Wotton²,

Wharton

et al. 2009

Ecohydrology

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Chalk streams are characterized by the presence of abundant stands of rooted macrophytes. There is typically a steep reduction in current velocity within stands and this promotes the trapping and accumulation of fine sediments. Fine sediments have also been shown to infill the gravel beds and shallow hyporheic zones of chalk streams in the process of colmation. We investigated how in-channel vegetation and colmation affect the reach-scale transport of fine particulate organic matter (FPOM, particles <1 mm in diameter) in a chalk stream. Corn pollen was used to model FPOM and a vegetated reach retained 62Ð5% of the corn pollen, while only 41Ð8% of the corn pollen was trapped in an unvegetated reach of similar length. In a second release, 51Ð2% of the corn pollen was retained in a vegetated reach, with 58Ð7% retained after the removal of the macrophytes to leave a bed coated with fine sediment. Two series of flume releases were used to examine the effect of colmation (infilling with fine sediment). In the first releases, retention of the corn pollen was 2% over the gravel-only bed, but infilling with sand increased retention to 34%. In the second releases, retention increased from 9% over a gravel-only bed up to 37% after infilling with sand. Our findings have implications for the residence times of sediment-bound nutrients and pesticides in chalk streams and for weed cutting, a common practice for flood risk management.

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Mechanisms of Stream Phosphorus Retention: An Experimental Study

Cited by 58 publications

References 30 publications

Soluble Reactive Phosphorus Transport and Retention in Tropical, Rainforest Streams Draining a Volcanic and Geothermally Active Landscape in Costa Rica. : Long-Term Concentration Patterns, Pore Water Environment and Response to ENSO Events

Soluble Reactive Phosphorus Transport and Retention in Tropical, Rainforest Streams Draining a Volcanic and Geothermally Active Landscape in Costa Rica. : Long-Term Concentration Patterns, Pore Water Environment and Response to ENSO Events

Nutrient Retention, Nutrient Limitation, and Sediment-Nutrient Interactions in a Pasture-Dominated Stream

The transport of fine particulate organic matter in vegetated chalk streams

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