Influence of hydropattern and vegetation type on phosphorus dynamics in flow-through wetland treatment systems

Moustafa, M. Z.; White, John R.; Coghlan, C.C.; Reddy, K. R.

doi:10.1016/j.ecoleng.2011.03.014

Cited by 16 publications

(7 citation statements)

References 13 publications

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“…Establishment of the STAs has provided ample opportunity for researchers to examine the effectiveness of treatment wetlands and wetland vegetation (e.g., Typha) for nutrient remediation in a subtropical region. Bhomia et al 2015and Pietro and Ivanoff (2015) examined soil and P accretion rates and P removal efficiency, while Chimney and Pietro (2006) and Dierberg and DeBusk (2008) assessed plant decomposition and particulate P. Other researchers have examined topics such as annual P loading, storage and removal, wetland restoration, mass balance models, and hydrology (e.g., Newman and Pietro 2001;DeBusk 2006, 2011;Moustafa et al 2011;Juston et al 2013;Chen et al 2015). Chimney and Pietro (2006) reported low decomposition rates for Typha compared to other plant species, suggesting that Typha-dominated wetlands would be ideal for retaining P; however, various species of submerged aquatic vegetation may remove greater amounts of soluble P than Typha.…”

Section: Bioremediation Case Study: South Florida Stormwater Treatmenmentioning

confidence: 99%

Typha (Cattail) Invasion in North American Wetlands: Biology, Regional Problems, Impacts, Ecosystem Services, and Management

et al. 2019

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Typha is an iconic wetland plant found worldwide. Hybridization and anthropogenic disturbances have resulted in large increases in Typha abundance in wetland ecosystems throughout North America at a cost to native floral and faunal biodiversity. As demonstrated by three regional case studies, Typha is capable of rapidly colonizing habitats and forming monodominant vegetation stands due to traits such as robust size, rapid growth rate, and rhizomatic expansion. Increased nutrient inputs into wetlands and altered hydrologic regimes are among the principal anthropogenic drivers of Typha invasion. Typha is associated with a wide range of negative ecological impacts to wetland and agricultural systems, but also is linked with a variety of ecosystem services such as bioremediation and provisioning of biomass, as well as an assortment of traditional cultural uses. Numerous physical, chemical, and hydrologic control methods are used to manage invasive Typha, but results are inconsistent and multiple methods and repeated treatments often are required. While this review focuses on invasive Typha in North America, the literature cited comes from research on Typha and other invasive species from around the world. As such, many of the underlying concepts in this review are relevant to invasive species in other wetland ecosystems worldwide.

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Section: Bioremediation Case Study: South Florida Stormwater Treatmenmentioning

confidence: 99%

Typha (Cattail) Invasion in North American Wetlands: Biology, Regional Problems, Impacts, Ecosystem Services, and Management

et al. 2019

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“…Wind stress calculated using Equation 1, was also decomposed along these two directions, which resulted in a north-south and east-west stress component, pushing water along those directions ( Table 1). 1 -X-axis is oriented north-south direction (north is positive); 2 -Y-axis is oriented east-west direction (east is positive); 3 -units are in Pa; 4 -units m s −1 ; and 5 -statistically significant difference at p < 0.001.…”

Section: Wind Stressmentioning

confidence: 99%

“…Aquatic vegetation is an integral part of all natural and constructed wetlands and plays a vital role in treating both urban and agricultural runoff as well as wastewater. Aquatic plants assimilate nutrients for growth and reproduction, provide surface area for microbial growth, stabilize the soil, act as a filter to trap submerged detritus and sediment, induce resistance to flow, and decrease the ability of the water to carry sediments [1][2][3][4][5].…”

Section: Introductionmentioning

confidence: 99%

Assessment of Wind and Vegetation Interactions in Constructed Wetlands

Moustafa

Wang

2020

Water

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Meteorological data from vegetated and un-vegetated wetlands during wet and dry seasons, were collected and analyzed to evaluate the role of wind and vegetation on wetlands’ hydrology. Wind speed diminished by as much as 40%, accompanied by a measurable change in wind directions in the vegetated compared to the open water site. Wind speed and direction means were significantly different (p < 0.001 and <0.01), for vegetated and non-vegetated wetland, respectively. Cattails (Typha sp.) and open water estimates of wind drag coefficients using the log wind profile, were 0.016 and 0.009 for dry season, and 0.012 and 0.005 for wet season, respectively. Wind set up near the wetland outlet was more pronounced at shallow water depth (<20 cm). Measured velocity profile during inflow discharge event with a wind speed of 0.53 ms−1, showed two-layer flows; wind-generated surface water flow opposite to a sub-surface inflow. This opposing surface flow increases hydraulic residence time and improve nutrient uptake. Conversely, wind-generated flows aligned with inflow discharges, accelerates water flow towards the outlet, reduce the duration of water-biotic interactions, and decrease nutrient uptake.

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“…traits conferring resistance or resilience) and other ecological changes produced by the drying. Upon reflooding, brief periods of drying within otherwise wet/inundated conditions could result in nutrient release and a consequent enhancement of resources (Bostic & White, ; Moustafa et al ., ), changes in macrophyte assemblages (Greening & Gerritsen, ; David, ) or changes in the strength of interspecific interactions like predation (Corti, Kohler & Sparks, ; Chase & Knight, ; Greig, Wissinger & McIntosh, ). Any or all of these changes (i.e.…”

Section: Introductionmentioning

confidence: 99%

Dissimilar numerical responses of macroinvertebrates to disturbance from drying and predatory sunfish

Knorp

Dorn

2014

Freshwater Biology

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Summary Disturbances caused by drying can eliminate fully aquatic organisms and alter wetland communities. However, the net effects of pulsed drying followed by re‐wetting on populations of benthic macroinvertebrates with greater tolerance to drying have been poorly studied. We quantified the population responses of two large macroinvertebrates, dragonflies (a number of species; Family: Libellulidae) and a crayfish (Procambarus fallax), to variable drying history and predatory sunfish (Family: Centrarchidae) in experimental subtropical wetlands. To simulate naturally occurring combinations of drying and sunfish presence, the experimental treatments included a drying and re‐wetting sequence that either eliminated sunfish or did not, with a third treatment of continuously flooded conditions with sunfish present. The activity of adult dragonflies was similar over all experimental wetlands, but larval density after 6 months was highest in continuously flooded wetlands (with sunfish) and some species (Erythemis simplicicollis, Celithemis eponina) were absent from wetlands that experienced drying. There was no evidence that sunfish limited larval density. After 6 months, overall crayfish biomass was greatest in wetlands that had dried and lacked sunfish. Crayfish density was similar in all wetlands, but individual crayfish body mass (g) was greatest in wetlands that lacked sunfish. Because of sunfish predation, few crayfish survived to full juvenile size. In the presence of sunfish, drying did not affect crayfish biomass or individual body mass. The abundance of libellulid dragonfly larvae was indirectly reduced by the drying. In wetlands where submerged vegetation was reduced by drying, we suggest that libellulid populations were limited by a small‐bodied fish (Gambusia holbrooki). In contrast, survival of juvenile crayfish was directly limited by sunfish, and therefore, crayfish (but not libellulid) populations could be temporarily enhanced by drying events when and where sunfish populations are reduced.

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Influence of hydropattern and vegetation type on phosphorus dynamics in flow-through wetland treatment systems

Cited by 16 publications

References 13 publications

Typha (Cattail) Invasion in North American Wetlands: Biology, Regional Problems, Impacts, Ecosystem Services, and Management

Typha (Cattail) Invasion in North American Wetlands: Biology, Regional Problems, Impacts, Ecosystem Services, and Management

Assessment of Wind and Vegetation Interactions in Constructed Wetlands

Dissimilar numerical responses of macroinvertebrates to disturbance from drying and predatory sunfish

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