Low buffering capacity and slow recovery of anthropogenic phosphorus pollution in watersheds

Goyette, Jean-Olivier; Bennett, Elena M.; Maranger, Roxane

doi:10.1038/s41561-018-0238-x

Cited by 113 publications

(70 citation statements)

References 41 publications

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“…High nutrient loads to streams below WWTP effluent outfalls lead to eutrophication issues, both locally and downstream (Figueroa-Nieves, McDowell, Potter, & Martínez, 2016;Goyette et al, 2018;Haggard et al, 2005;Martí, Aumatell, Gode, Poch, & Sabater, 2004) along with changes to biological communities (Gücker et al, 2006;Price, Ledford, Ryan, Toran, & Sales, 2018;Ribot et al, 2012). A range of impacts of large nutrient loads below WWTP effluent outfalls to nutrient cycling has been observed, requiring more research.…”

Section: Wastewater Treatment Plants As Nutrient Sourcesmentioning

confidence: 99%

“…However, the majority of overland runoff is particulate, typically >50% and up to 90% (Withers & Jarvie, 2008). Furthermore, bioavailabilty of sedimentbound P is likely limited and release of accumulated P in sediment could take decades or centuries (Goyette, Bennett, & Maranger, 2018). Both biological uptake and abiotic sorption of SRP occur during baseflow, leading to retention in rivers (Withers & Jarvie, 2008) with rapid SRP uptake in forested streams (Mulholland, Marzolf, Webster, Hart, & Hendricks, 1997).…”

Section: Introductionmentioning

confidence: 99%

“…Lower uptakes rates were observed in an urban stream by Ryan, Packman, and Kilham (2007) and were dominated by abiotic processes suggesting retention in sediments is dominant (Haggard, Stanley, & Storm, 2005). Furthermore, bioavailabilty of sedimentbound P is likely limited and release of accumulated P in sediment could take decades or centuries (Goyette, Bennett, & Maranger, 2018). Point sources of nutrients to streams increase biotic stress (Gücker, Brauns, & Pusch, 2006), increasing the importance of understanding how nutrients are being retained and exported.…”

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confidence: 99%

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Downstream evolution of wastewater treatment plant nutrient signals using high‐temporal monitoring

Ledford

Toran

2019

Hydrological Processes

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Wastewater treatment plants are major point-sources of nutrients to streams globally, but the impact on receiving streams is not always clear. Previous research has shown mixed responses in receiving streams, with some showing no net retention through instream processing for large distances below plants and some showing high rates of processing and retention. This study focuses on Sandy Run, a small, suburban stream in Montgomery County, PA, that receives effluent from two plants, where effluent makes up an estimated 50% of outlet discharge at baseflow. Two sites were monitored in late summer baseflow using high-temporal loggers to evaluate nitrate and phosphate retention with distance below the plants. Effluent quantity was monitored immediately below the effluent outfalls using specific conductivity as a conservative signal of solute fluctuations throughout the day. A site 1 km downstream showed diel nitrate changes, but despite moderate gross primary productivity and ecosystem respiration rates, there was little net retention of nutrients and the diel nitrate signal can be attributed to advection and dispersion of variable upstream effluent. A site 5.4 km below the plant showed a diel nitrate signal as well, but baseflow daily hysteresis plots of nitrate and specific conductivity showed the effluent and nitrate peaks did not coincide. Instead, the effluent input signal was seen overnight, but there was in-stream removal and release processes during the day. Over the distance to this site, the stream was metabolizing some of the high nutrient loads, although gross primary productivity and ecosystem respiration rates were lower. It is important to understand subdaily changes in nutrient processing to fully quantify the impacts of effluent on small streams at different scales. Furthermore, looking at the diel signal without considering conservative transport would overestimate in-stream processing. K E Y W O R D Sdaily hysteresis, ecosystem respiration (ER), gross primary productivity (GPP), high-temporal sensor, in-stream metabolism, nitrogen cycling, urban stream, wastewater treatment plant

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Section: Wastewater Treatment Plants As Nutrient Sourcesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

mentioning

confidence: 99%

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Downstream evolution of wastewater treatment plant nutrient signals using high‐temporal monitoring

Ledford

Toran

2019

Hydrological Processes

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“…In the St. Lawrence Lowlands, runoff accounts for 60% of P transport outside agricultural fields (Beaudet, Beaudin, Michaud, & Giroux, 2008). Goyette, Bennett, and Maranger (2018) showed that legacy P inputs caused a significant acceleration of P loss in runoff from the Quebec agricultural soils. Fertilization decisions should thus avoid elevating or maintaining soil test P above a given threshold (Bergström et al, 2015;Fulford & Culman, 2018;Pellerin et al, 2006aPellerin et al, , 2006b).…”

Section: Environmental Benefitsmentioning

confidence: 99%

Corn response to banded phosphorus fertilizers with or without manure application in Eastern Canada

et al. 2020

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Legacy phosphorus (P), corn (Zea mays L.) hybrids, weather conditions, and regulation on land-applied manure affect site-specific mineral P requirements. Mineral P fertilizers are still banded at corn seeding as insurance policy even where manure P is applied in compliance with regulation in Eastern Canada. Our objective was to measure the effects of site-specific factors on the response of corn hybrids of the "new" era (1991+) to mineral and manure P fertilization under regulatory constraints. A dataset of 370 corn P fertilizer trials conducted between 1998 and 2004 in Quebec, Canada, comprised trials using mineral P alone (229 trials) or in combination with manure (141 trials). Linear mixed statistical models tested the effect of P fertilization on seedling biomass, grain yield, grain bulk density, and grain moisture content as affected by weather and soil indices. Early plant growth proved to be a poor indicator of final crop performance. Where no manure was applied, grain yield and quality were affected primarily by soil pH, texture, and genesis. There were responses to P additions only where the saturation index (P/Al) M3 was less than 5%. Mineral P fertilizers showed no significant effect on crop performance where manure was applied, but manured soil generally showed (P/Al) M3 percentages exceeding 5%. Banding mineral P at corn seeding where manure was applied at rates complying with the regulation and the (P/Al) M3 percentage exceeded 5% appeared to be a waste of resource under the soil and climate conditions in Eastern Canada.Abbreviations: CHU, corn heat units; DAP, diammonium phosphate; Fv, filling value.

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“…Due to the inherent lithophilic properties of P (i.e., P is subject to sorption or coprecipitation), excess P has a propensity to accumulate in soils and sediments Chen et al 2018). The accumulated P increases P transfers along the land-freshwater continuum, causing a considerable lag time between anthropogenic P inputs and P delivery to surface waters (Kleinman et al 2011;Goyette et al 2018). For example, global P accumulated in croplands was 815 Tg P between 1965 and 2007 (Sattari et al 2012), which was * 40-fold higher than applied P fertilizer in 2012 (20.3 Tg P year -1 ).…”

Section: Introductionmentioning

confidence: 99%

Decreased buffering capacity and increased recovery time for legacy phosphorus in a typical watershed in eastern China between 1960 and 2010

Chen

Dahlgren

et al. 2019

Biogeochemistry

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Low buffering capacity and slow recovery of anthropogenic phosphorus pollution in watersheds

Cited by 113 publications

References 41 publications

Downstream evolution of wastewater treatment plant nutrient signals using high‐temporal monitoring

Downstream evolution of wastewater treatment plant nutrient signals using high‐temporal monitoring

Corn response to banded phosphorus fertilizers with or without manure application in Eastern Canada

Decreased buffering capacity and increased recovery time for legacy phosphorus in a typical watershed in eastern China between 1960 and 2010

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