Research | Landscape Performance Series
Fast Fact Library
The Landscape Performance Series Fast Fact Library is a searchable collection of landscape benefits derived from published research. Each includes a citation and links to the full article when available.
This resource is intended to showcase landscape’s multiple and sometimes surprising environmental, economic and social benefits and to help you make the case for sustainable landscape solutions in your community, with your clients, or on Capitol Hill.
Know of additional research that would make a compelling Fast Fact? Help build the database by sending your suggestions to lps@lafoundation.org.
Search Fast Facts
Browse all Fast Fact Sources- By Landscape Performance Benefit
Land (view all)
Water (view all)
Habitat (view all)
Carbon, Energy & Air Quality (view all)
Showing 8 Results for Nancy B. Grimm
Displaying results by date
2010
Dry ponds remove particulates but not soluble pollutants and tend to export nitrogen. Dense vegetative cover within the basin, longer detention time, extended flow path, a cell with a carbon source, and creation of aerobic and anaerobic environments within the basin can improve the ability of dry ponds to remove nitrogen.
Cole Ekberg, Marci L., Collins, Kelly A., Grimm, Nancy B., Jontos, Robert J., Kaushal, Sujay S., Lawrence, Timothy J., Newcomer, Tamara A., Stander, Emilie K., (2010). Opportunities and challenges for managing nitrogen in urban stormwater: A review and synthesis. Ecological Engineering, 36, 1507-1519.
0 View/Leave CommentsGrass swales, dry swales, and wet swales direct stormwater but also reduce most nitrogen-compounds from stormwater in small rainfall events. Vegetated open channels that function best to increase filtration, sedimentation, infiltration, and nitrogen reduction have a dense cover of vegetation with a well-developed root system, shallow slopes, low flow velocities, and increased detention time.
Cole Ekberg, Marci L., Collins, Kelly A., Grimm, Nancy B., Jontos, Robert J., Kaushal, Sujay S., Lawrence, Timothy J., Newcomer, Tamara A., Stander, Emilie K., (2010). Opportunities and challenges for managing nitrogen in urban stormwater: A review and synthesis. Ecological Engineering, 36, 1507-1519.
Older, established green roof plant communities are more likely to absorb nutrients from rainfall and media than younger communities. Green roofs can act as either sources of nutrient runoff or sinks. Low to medium dosages of controlled release fertilizers, use of species that require little to no fertilization, using less nutrient-rich organic matter amendments, and reducing irrigation will improve a green roof’s stormwater management capabilities.
Cole Ekberg, Marci L., Collins, Kelly A., Grimm, Nancy B., Jontos, Robert J., Kaushal, Sujay S., Lawrence, Timothy J., Newcomer, Tamara A., Stander, Emilie K., (2010). Opportunities and challenges for managing nitrogen in urban stormwater: A review and synthesis. Ecological Engineering, 36, 1507-1519.
Permeable pavement reduces runoff by allowing water that hits the permeable pavement to infiltrate through the surface, and nitrogen removal can be increased by temporarily storing the runoff in a basin. Nitrogen-compound removal can be enhanced by creating a shallow sand layer in the basin to increase surface area for microorganisms, allowing a portion of the basin to remain saturated even if some of the basin water is drained, and incorporating a carbon bioreactor such as charcoal in the saturated layer.
Cole Ekberg, Marci L., Collins, Kelly A., Grimm, Nancy B., Jontos, Robert J., Kaushal, Sujay S., Lawrence, Timothy J., Newcomer, Tamara A., Stander, Emilie K., (2010). Opportunities and challenges for managing nitrogen in urban stormwater: A review and synthesis. Ecological Engineering, 36, 1507-1519.
Rain gardens and bioswales remove nitrogen through plant uptake, denitrification, adsorption, long-term storage in soil organic matter, and immobilization. The performance of bioretention facilities can be improved by increasing detention time, strategically applying low nitrogen organic matter amendments to induce anaerobic conditions, and increasing the vegetation with a focus on plants with deep roots.
Cole Ekberg, Marci L., Collins, Kelly A., Grimm, Nancy B., Jontos, Robert J., Kaushal, Sujay S., Lawrence, Timothy J., Newcomer, Tamara A., Stander, Emilie K., (2010). Opportunities and challenges for managing nitrogen in urban stormwater: A review and synthesis. Ecological Engineering, 36, 1507-1519.
Special thanks to:
Landscape Performance Series
Founding Partner
