Abstract
Stormwater contributes to the impairment of North Carolina (NC) waters due to the large concentrations of a variety of nutrients and contaminants entering streams and rivers. Many municipal governments have begun to develop stormwater best management practices (BMPs) as a result of the United States Environmental Protection Agency (EPA) stormwater program initiated in 1990. Green roofs reduce the volume of rooftop runoff, and may serve as a primary BMP for highly congested areas. This paper presented the results of a study investigating appropriate plant selection for enhanced water retention and peak flow reduction. The aim of the study was to estimate the percentage of precipitation of green roofs, as well as the percentage of peak flow reduction and to determine whether green roofs can be used as nutrient reduction BMPs. Two green roofs were constructed and monitored in NC's Neuse River Basin. The hydrologic and water quality performance of each green roof was evaluated. Results showed that each green roof retained a significant proportion of the rainfall. Peak outflows were reduced, and each green roof had substantial delays in runoff. Runoff coefficients averaged 0.50 for 10 storm events. Results also showed that concentrations and amounts of total nitrogen and total
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Citation Formats
Moran, A, Hunt, B, and Smith, J.
Hydrologic and water quality performance from green roofs in Goldsboro and Raleigh, North Carolina.
Canada: N. p.,
2005.
Web.
Moran, A, Hunt, B, & Smith, J.
Hydrologic and water quality performance from green roofs in Goldsboro and Raleigh, North Carolina.
Canada.
Moran, A, Hunt, B, and Smith, J.
2005.
"Hydrologic and water quality performance from green roofs in Goldsboro and Raleigh, North Carolina."
Canada.
@misc{etde_20861933,
title = {Hydrologic and water quality performance from green roofs in Goldsboro and Raleigh, North Carolina}
author = {Moran, A, Hunt, B, and Smith, J}
abstractNote = {Stormwater contributes to the impairment of North Carolina (NC) waters due to the large concentrations of a variety of nutrients and contaminants entering streams and rivers. Many municipal governments have begun to develop stormwater best management practices (BMPs) as a result of the United States Environmental Protection Agency (EPA) stormwater program initiated in 1990. Green roofs reduce the volume of rooftop runoff, and may serve as a primary BMP for highly congested areas. This paper presented the results of a study investigating appropriate plant selection for enhanced water retention and peak flow reduction. The aim of the study was to estimate the percentage of precipitation of green roofs, as well as the percentage of peak flow reduction and to determine whether green roofs can be used as nutrient reduction BMPs. Two green roofs were constructed and monitored in NC's Neuse River Basin. The hydrologic and water quality performance of each green roof was evaluated. Results showed that each green roof retained a significant proportion of the rainfall. Peak outflows were reduced, and each green roof had substantial delays in runoff. Runoff coefficients averaged 0.50 for 10 storm events. Results also showed that concentrations and amounts of total nitrogen and total phosphorus increased from rainfall to green roof outflow. It was determined that the soil media was leaching nitrogen and phosphorus into the green roof outflow. It was concluded that green roof growing media must be carefully selected in locations where nutrients are a concern. 15 refs., 1 tab., 7 figs.}
place = {Canada}
year = {2005}
month = {Jul}
}
title = {Hydrologic and water quality performance from green roofs in Goldsboro and Raleigh, North Carolina}
author = {Moran, A, Hunt, B, and Smith, J}
abstractNote = {Stormwater contributes to the impairment of North Carolina (NC) waters due to the large concentrations of a variety of nutrients and contaminants entering streams and rivers. Many municipal governments have begun to develop stormwater best management practices (BMPs) as a result of the United States Environmental Protection Agency (EPA) stormwater program initiated in 1990. Green roofs reduce the volume of rooftop runoff, and may serve as a primary BMP for highly congested areas. This paper presented the results of a study investigating appropriate plant selection for enhanced water retention and peak flow reduction. The aim of the study was to estimate the percentage of precipitation of green roofs, as well as the percentage of peak flow reduction and to determine whether green roofs can be used as nutrient reduction BMPs. Two green roofs were constructed and monitored in NC's Neuse River Basin. The hydrologic and water quality performance of each green roof was evaluated. Results showed that each green roof retained a significant proportion of the rainfall. Peak outflows were reduced, and each green roof had substantial delays in runoff. Runoff coefficients averaged 0.50 for 10 storm events. Results also showed that concentrations and amounts of total nitrogen and total phosphorus increased from rainfall to green roof outflow. It was determined that the soil media was leaching nitrogen and phosphorus into the green roof outflow. It was concluded that green roof growing media must be carefully selected in locations where nutrients are a concern. 15 refs., 1 tab., 7 figs.}
place = {Canada}
year = {2005}
month = {Jul}
}