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Web URL(s): | https://scisoc.confex.com/crops/2012am/webprogram/Paper72912.html Last checked: 11/21/2012 |
Publication Type: | Report |
Content Type: | Abstract or Summary only |
Author(s): | Zhang, Yao; Qian, Yaling; Bremer, Dale; Kaye, Jason |
Author Affiliation: | Zhang: Horticulture and Landscape Architecture; Qian: Department of Horticulture and Landscape Architecture, Colorado State University, Fort Collins, CO; Bremer: Kansas State University, Manhattan, KS; Kaye: Department of Crop and Soil Sciences, Penn State University, University Park, PA |
Title: | Simulation of N2O emissions from two cool season turfgrass lawns using the DAYCENT model |
Section: | Management of turfgrass, thatch, soil and irrigation Other records with the "Management of turfgrass, thatch, soil and irrigation" Section |
Meeting Info.: | Cincinnati, Ohio: October 21-24, 2012 |
Source: | ASA, CSSA and SSSA Annual Meetings [2012]. 2012, p. 72912. |
Publishing Information: | Madison, Wisconsin: American Society of Agronomy and Crop Science Society of America and Soil Science Society of America |
# of Pages: | 1 |
Keywords: | TIC Keywords: Cultural methods; Lolium perenne; Nitrification; Nitrous oxide; Poa pratensis; Urea |
Abstract/Contents: | "Nitrous oxide (N2O) emissions are an important component of the greenhouse budget for turfgrasses. To estimate N2O emissions from home lawns, the DAYCENT ecosystem model was parameterized and applied to turf ecosystems. The annual cumulative N2O emissions predicted by the DAYCENT model were close to the measured emission rates of Kentucky bluegrass lawns in Colorado (within 16% of the observed values). For the perennial ryegrass site in Kansas, the DAYCENT model overestimated the N2O emissions for all treatments by about 200% (urea and ammonium sulfate at high rate and urea at low rate). After including the effect of biological nitrification inhibition in the root exudate of perennial ryegrass, the DAYCENT model simulated the N2O emissions for all treatments within 8% of the observed values. After calibration and validation, the DAYCENT model was further used to simulate carbon sequestration and N2O emissions of a Kentucky bluegrass lawn under a series of management regimes. The model simulation suggested that gradually reducing fertilization as the lawn ages from 0 to 50 years would significantly reduce long-term N2O emissions by approximately 40% when compared to applying N at a constant rate (at 150 kg N ha-1 yr-1)." |
Language: | English |
References: | 0 |
Note: | This item is an abstract only |
ASA/CSSA/SSSA Citation (Crop Science-like – may be incomplete): | Zhang, Y., Y. Qian, D. Bremer, and J. Kaye. 2012. Simulation of N2O emissions from two cool season turfgrass lawns using the DAYCENT model. Int. Ann. Meet. p. 72912. |
Fastlink to access this record outside TGIF: | http://tic.msu.edu/tgif/flink/RECNO/213401 |
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Web URL(s) : | https://scisoc.confex.com/crops/2012am/webprogram/Paper72912.html Last checked: 11/21/2012 |
MSU catalog number: | TIC Vertical - Serials |
Find from within TIC: | Digitally in TIC by record number. |
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