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| Web URL(s): | https://scisoc.confex.com/scisoc/2016am/webprogram/Paper102134.html
Last checked: 12/01/2016 |
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| Publication Type:
| Report |
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| Content Type: | Abstract or Summary only |
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| Author(s): | Trammell, Tara L. E.;
Pataki, Diane E.;
Groffman, Peter M.;
Bettez, Neil;
Morse, Jennifer L.;
Cavender-Bares, Jeannine;
Grove, Morgan;
Hall, Sharon;
Heffernan, James B.;
Hobbie, Sarah E.;
Neill, Christopher;
Nelson, Kristen;
Ogden, Laura |
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| Author Affiliation: | Trammell: Department of Plant and Soil Sciences, University of Delaware, Newark, DE; Pataki: Department of Biology, University of Utah, Salt Lake City, UT; Groffman: Advanced Science Research Center, City University of New York, New York, NY; Bettez: Cary Institute of Ecosystem Studies, Millbrook, NY; Morse: Department of Environmental Science and Management, Portland State University, Portland, OR; Cavender-Bares: Department of Ecology, Evolution, and Behavior, University of Minnesota, St. Paul, MN; Grove: Baltimore Ecosystem Study, USDA Forest Service, Baltimore, MD; Hall: Arizona State University, Tempe, AZ; Heffernan: Nicholas School of the Environment, Duke University, Durham, NC; Hobbie: University of Minnesota, Saint Paul, MN; Neill: Ecosystems Center, Woods Hole, MA; Nelson: University of Minnesota, St. Paul, MN; Ogden: Department of Anthropology, Dartmouth University, Hanover, NH |
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| Title: | Soil nitrogen isotope composition in residential lawns across six U.S. cities |
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| Section: | SSSA division: Urban and antropogenic soils
Other records with the "SSSA division: Urban and antropogenic soils" Section
Urban and anthropogenic soils oral (includes student competition)
Other records with the "Urban and anthropogenic soils oral (includes student competition)" Section
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| Meeting Info.: | Phoenix, Arizona: November 6-9, 2016 |
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| Source: | ASA, CSSA and SSSA International Annual Meetings. 2016, p. 102134. |
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| Publishing Information: | [Milwaukee, Wisconsin]: [American Society of Agronomy and the Entomological Society of America] |
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| # of Pages: | 1 |
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| Keywords: | TIC Keywords: Chemical properties of soil; Lawn maintenance; Lawn turf; Nitrogen; Regional variation; Soil microorganisms; Urban habitat
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| Abstract/Contents: | "Urban residential landscapes and associated lawns are widespread across the U.S. Lawns often require large inputs of water and nutrients for establishment and optimal growth. The goal of this study was to quantify the soil nitrogen isotope composition of lawns and identify drivers of soil N dynamics across multiple U.S. cities. We expected more enriched soil d15N with N fertilization and in older lawns vs. newly established lawns. We studied residential yards in six cities across the U.S. that span major climatic regions: Baltimore, Boston, Los Angeles, Miami, Minneapolis-St. Paul, and Phoenix, and compared lawn soil N dynamics to native ecosystems surrounding each city. Soil d15N was positively related to housing age (a proxy for lawn age) at the soil surface (0-10 cm) in Baltimore (r2=0.62, p<0.001), Boston (r2=0.29, p<0.01), LA (r2=0.34, p<0.01), Minneapolis-St. Paul (r2=0.25, p<0.05), and Phoenix (r2=0.18, p<0.05). There was a weaker but still positive relationship in Miami (r2=0.16, p=0.08). We found no significant differences in soil d15N based on lawn fertilization practices except in Boston, where fertilized yards were depleted (mean d15N = 4.3±0.25) relative to unfertilized yards (mean d15N = 5.1±0.19). Across all cities, soil d15N was enriched in residential lawns (mean d15N = 4.5±0.37) compared to the native ecosystems (mean d15N = 3.0±0.58; p<0.10). Soil d15N appears to be driven strongly by time since development and was not correlated with our metrics of lawn management, leading to significantly enriched soil d15N in older lawns across the U.S. Future analyses will provide more insight as to whether these patterns are related to other metrics of lawn management or ecological processes such as soil microbial activity, which may further identify mechanisms controlling soil N patterns across multiple cities." |
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| Language: | English |
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| References: | 0 |
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| Note: | This item is an abstract only!
"69-10" |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Trammell, T. L. E., D. E. Pataki, P. M. Groffman, N. Bettez, J. L. Morse, J. Cavender-Bares, et al. 2016. Soil nitrogen isotope composition in residential lawns across six U.S. cities. Agron. Abr. p. 102134. |
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Last checked: 12/01/2016 |
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