Phosphorus Retention in Intact and Drained Prairie Wetland Basins: Implications for Nutrient Export

Badiou, Pascal; Page, Bryan; Akinremi, Wolé

doi:10.2134/jeq2017.08.0336

Cited by 22 publications

(24 citation statements)

References 80 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The increases in DRP and TP concentrations were likely due to the repeated wetting and drying during inundation events and sediment resuspension. Multiple studies have shown that dried sediments have increased P release when wetted, compared to areas that remain inundated, which includes wetting and drying in drained wetlands (Kröger et al, 2012;DeLonge et al, 2013;Badiou et al, 2018). In wetlands, iron reduction during saturated conditions and increased mineralization of organic P during dry conditions are both likely causes for P release (Aldous et al, 2005;Loeb et al, 2008).…”

Section: Event Trendsmentioning

confidence: 99%

“…However, drained potholes have also been reported to be a source of P, while undisturbed wetlands are more likely to be a sink for P . The repeated wetting and drying of drained potholes causes organic P to convert to bioavailable P during aerobic conditions, while iron reduction releases P during anoxic conditions (Aldous et al, 2005;Badiou et al, 2018). The released P is then exported in drainage water.…”

mentioning

confidence: 99%

See 1 more Smart Citation

Seasonal and Intra-Event Nutrient Levels in Farmed Prairie Potholes of the Des Moines Lobe

Martín¹,

Soupir²,

Kaleita³

2019

Transactions of the ASABE

View full text Add to dashboard Cite

HighlightsNitrogen, total phosphorus, and total suspended solids concentrations were higher in early season inundation.Nitrate concentrations in farmed potholes decreased with multiday ponding.Farmed potholes act as hotspots, contributing P to drainage through surface intakes.Abstract. The prairie pothole region ranges from central Iowa to the northwest into Montana and south-central Canada, totaling around 700,000 km2. This area contains millions of potholes, or enclosed topographical depressions, which often inundate with rainfall. Many are located in areas that have been converted to agricultural land through installation of artificial drainage. However, even with drainage, potholes pond or remain saturated during and after significant rain events. In this two-year study, surface water depth was collected hourly (typically from after planting through harvest) from eight farmed potholes (drained and under corn-soybean rotation) on the Des Moines Lobe in central Iowa. Nutrient data were collected daily and tested for nitrogen (N) and phosphorus (P) when inundation depth exceeded 10 cm. The data were analyzed in two ways. First, seasonal differences were investigated using samples from the first day of each inundation event. Surface water concentrations were higher in the early growing season than late season for total N (TN), NO3-N, NH3-N, total P (TP), and total suspended solids (TSS). Secondly, average event concentration changes were determined. Nitrate reductions occurred in 85% of multiday events, but these reductions were offset by increases in P. Total P and dissolved reactive P (DRP) had significant increases that averaged 0.51 and 0.46 mg L-1 per event, respectively, with event lengths of 2 to 19 days. This study demonstrates that inundated farmed potholes reduce NO3-N but serve as in-field hotspots, contributing elevated TP and DRP to drainage waters. When a surface intake directly connects inundated farmed potholes to drainage, new strategies, such as field management or engineered technologies, are needed to mitigate P export. This study is useful in informing policy regarding field management and conservation of farmed potholes. Keywords: Farmed wetland, Nitrogen, Nutrients, Phosphorus, Prairie pothole.

show abstract

Section: Event Trendsmentioning

confidence: 99%

mentioning

confidence: 99%

Seasonal and Intra-Event Nutrient Levels in Farmed Prairie Potholes of the Des Moines Lobe

Martín¹,

Soupir²,

Kaleita³

2019

Transactions of the ASABE

View full text Add to dashboard Cite

show abstract

“…Soils and sediments within wetland ecosystems store an appreciable amount of phosphorus (P) relative to other ecosystem components. This dynamic is driven largely by ecosystem position along the terrestrial-aquatic continuum where wetlands exist at the interface between terrestrial and aquatic ecosystems and receive inputs from adjacent upland ecosystems (Reddy and DeLaune 2008;Badiou et al 2018). As such, P accumulated within wetlands from upstream land uses can be both reactive or stable pools of P re ecting historical conditions within the watershed (Nair et al 2015).…”

Section: Introductionmentioning

confidence: 99%

Seal Tightly and Store in a Cool Dry Place: Exploring Soil Phosphorus Storage in a Subtropical Treatment Wetland.

Julian

Osborne

Nair

2021

Preprint

View full text Add to dashboard Cite

Oligotrophic wetlands of the Everglades are often the final recipients of nutrients from adjacent ecosystems and tend to accumulate phosphorus (P) in their soils. Understanding P source and sink dynamics in wetlands are critical for managing wetland ecosystems and protecting downstream resources. In this study, soil P storage capacity (SPSC) was evaluated within two treatment flow-ways of the Everglades Stormwater Treatment Areas (STAs). This study hypothesized that SPSC will vary between flow-ways, soil depth, and spatially along the inflow-to-outflow gradient. The P storage capacity in the STAs depend on the proportion of iron, aluminum, calcium, and magnesium (Fe, Al, Ca, and Mg, respectively) to P with floc and recently accreted soils (RAS) being associated more with Ca and Mg and pre-STA soils being associated more with Fe and Al. Phosphorus loss, as indicated from SPSC values would vary between systems and soil depths suggesting a variable condition of P sink and source within and along flow-ways. This result, while limited, demonstrates the applicability of SPSC to wetlands systems and provides information that will aid operational or management decisions associated with improving P retention of the Everglades STAs.

show abstract

“…Soil Taxonomic Classification (Soil Classification Working Group, 1998). Previous studies have categorized them as alkaline soils (Badiou et al, 2018;Ige et al, 2008). Land use in the BCW consists of agriculture (71.4%), rangeland (10.8%), wetland (9.8%), forest (4%) and others (4%).…”

Section: Introductionmentioning

confidence: 99%

Hydroclimatic influences and physiographic controls on phosphorus dynamics in prairie pothole wetlands

Haque

Ali

Macrae

et al. 2018

Science of The Total Environment

Self Cite

View full text Add to dashboard Cite

While wetlands are known as long-term storages or sinks for contaminants, not all are equally effective at trapping phosphorus (P). The prevalence of P-sink behavior in prairie pothole wetlands remains unclear, especially across gradients of human disturbance. The objectives of the current study were three-fold: (1) characterize the spatiotemporal variability of wetland hydrology and wetland water P concentration across a range of prairie potholes; (2) establish the propensity of different pothole wetlands to act as sources or sinks of P; and (3) assess the potential controls of climatic conditions, landscape characteristics, wetland soil physiochemical properties and local hydrology on source versus sink dynamics. Ten intact and three consolidated (i.e., drained) wetlands located in southwestern Manitoba, Canada, were monitored for water level fluctuations and water soluble reactive P (SRP) concentration over two years with contrasting antecedent wetness conditions. Soil cores were also collected to measure soil physiochemical properties such as the equilibrium phosphorus concentration (EPC). Water column SRP concentrations were compared to EPC values to infer the time-variable source versus sink behavior of each of wetland. Statistical analyses were then performed to assess whether the source versus sink behavior of individual wetlands could be linked to their physiographic or hydrologic characteristics. Results show that some wetlands persistently acted as P sinks while others switched between source and sink behavior. Persistent P-sink behavior was more common with intact wetlands, as opposed to consolidated wetlands. Wetland soil texture, storage volume and short-term water level fluctuations appeared to control the source versus sink behavior of individual wetlands. The dominant controls on P-sink behavior identified under dry conditions were, however, different from those identified under wetter conditions. This study therefore highlights the importance of considering the non-stationary nature of P-sorption dynamics and their controls, even at sub-annual timescales, in the prairie pothole region.

show abstract

Phosphorus Retention in Intact and Drained Prairie Wetland Basins: Implications for Nutrient Export

Cited by 22 publications

References 80 publications

Seasonal and Intra-Event Nutrient Levels in Farmed Prairie Potholes of the Des Moines Lobe

Seasonal and Intra-Event Nutrient Levels in Farmed Prairie Potholes of the Des Moines Lobe

Seal Tightly and Store in a Cool Dry Place: Exploring Soil Phosphorus Storage in a Subtropical Treatment Wetland.

Hydroclimatic influences and physiographic controls on phosphorus dynamics in prairie pothole wetlands

Contact Info

Product

Resources

About