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| Web URL(s): | https://dl.sciencesocieties.org/publications/jeq/articles/32/5/1694
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| Publication Type:
| Refereed |
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| Author(s): | Qian, Y. L.;
Bandaranayake, W.;
Parton, W. J.;
Mecham, B;
Harivandi, M. A.;
Mosier, A. R. |
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| Author Affiliation: | Qian and Bandaranayake: Department of Horticulture and Landscape Architecture; Parton: Natural Resource Ecology Laboratory (NREL), Colorado State University, Fort Collins, Colorado; Mecham: Northern Colorado Water Conservancy District, Loveland, Colorado; Harivandi: University of California Cooperative Extension, Alameda, California; Mosier: USDA-ARS, Soil-Plant-Nutrient Research Unit, Fort Collins, Colorado |
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| Title: | Long-term effects of clipping and nitrogen management in turfgrass on soil organic carbon and nitrogen dynamics: The CENTURY model simulation |
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| Section: | Landscape and watershed processes
Other records with the "Landscape and watershed processes" Section
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| Source: | Journal of Environmental Quality. Vol. 32, No. 5, September/October 2003, p. 1694-1700. |
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| Publishing Information: | Madison, Wisconsin: American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America |
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| # of Pages: | 7 |
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| Keywords: | TIC Keywords: Clippings; Nitrogen; Organic matter; Carbon; Clipping management; Computer simulation models; Poa pratensis; Clipping weight; Nitrogen fertilization; Fertilization rates; Turfgrass quality
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| Abstract/Contents: | "Experiments to document the long-term effects of clipping management on N requirements, soil organic carbon (SOC), and soil organic nitrogen (SON) are difficult and costly and therefore few. The CENTURY ecosystem model offers an opportunity to study long-term effects of turfgrass clipping management on biomass production, N requirements, SOC and SON, and N leaching through computer simulation. In this study, the model was verified by comparing CENTURY-predicted Kentucky bluegrass (Poa pratensis L.) clipping yields with field-measured clipping yields. Long-term simulations were run for Kentucky bluegrass grown under home lawn conditions on a clay loam soil in Colorado. The model predicted that compared with clipping-removed management, returning clippings for 10 to 50 yr would increase soil C sequestration by 11 to 25% and nitrogen sequestration by 12 to 28% under a high (150 kg N ha-1 yr-1) nitrogen (N) fertilization regime, and increase soil carbon sequestration by 11 to 59% and N sequestration by 14 to 78% under a low (75 kg N ha-1 yr-1) N fertilization regime. The CENTURY model was further used as a management supporting system to generate optimal N fertilization rates as a function of turfgrass age. Returning grass clippings to the turf-soil ecostystem can reduce N requirements by 25% from 1 to 10 yr after turf establishment, by 33% 11 to 25 yr after establishment, by 50% 25 to 50 yr after establishment, and by 60% thereafter. The CENTURY model shows potential for use as a decision-supporting tool for maintaining turf quality and minimizing negative environmental impacts." |
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| Language: | English |
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| References: | 27 |
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| See Also: | Other items relating to: Carbon sequestration of turf |
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| Note: | Tables
Graphs |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Qian, Y. L., W. Bandaranayake, W. J. Parton, B. Mecham, M. A. Harivandi, and A. R. Mosier. 2003. Long-term effects of clipping and nitrogen management in turfgrass on soil organic carbon and nitrogen dynamics: The CENTURY model simulation. J. Environ. Qual. 32(5):p. 1694-1700. |
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| Web URL(s):
https://dl.sciencesocieties.org/publications/jeq/articles/32/5/1694
Last checked: 11/07/2016
Access conditions: Item is within a limited-access website
https://dl.sciencesocieties.org/publications/jeq/pdfs/32/5/1694
Last checked: 11/08/2016
Requires: PDF Reader
Access conditions: Item is within a limited-access website |
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MSU catalog number: S 900 .J6 |
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