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| Web URL(s): | http://elibrary.asabe.org/azdez.asp?JID=3&AID=20410&CID=t2006&v=49&i=2&T=2&redirType=
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http://elibrary.asabe.org/azdez.asp?JID=3&AID=20410&CID=t2006&v=49&i=2&T=1&redirType=
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Access conditions: Item is within a limited-access website |
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| Publication Type:
| Report |
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| Author(s): | Stewart, G. R.;
Munster, C. L.;
Vietor, D. M.;
Arnold, J. G.;
McFarland, A. M. S.;
White, R.;
Provin, T. |
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| Author Affiliation: | Stewart: Graduate Research Assistant; Munster: Associate Professor, Department of Biological and Agricultural Engineering; Vietor and White: Professors, Department of Soil and Crop Science; Provin: Associate Professor and Soil Chemist, Texas A & M University, College Station, Texas; Arnold: Hydraulic Engineer, United States Department of Agriculture - Agricultural Research Service Grassland Soil and Water Research Laboratory, Temple, Texas; McFarland: Research Scientist, Texas Institute for Applied Environmental Research, Tarleton State University, Stephenville, Texas |
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| Title: | Simulating water quality improvements in the upper North Bosque River watershed due to phosphorus export through turfgrass sod |
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| Section: | Soil and Water
Other records with the "Soil and Water" Section
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| Source: | Transactions of the ASABE. Vol. 49, No. 2, March/April 2006, p. 357-366. |
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| Publishing Information: | St. Joseph, MI: American Society of Agricultural and Biological Engineers |
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| # of Pages: | 10 |
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| Keywords: | TIC Keywords: Water quality; Phosphorus; Watershed management; Nitrogen; Sod; Assessment; Sediment control; Best management practices; Manures; Surface runoff; Leaching; Sod harvesting; Models; Sod production; Runoff control; Nutrient transport
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| Geographic Terms: | Upper North Bosque River |
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| Abstract/Contents: | "The Upper North Bosque River (UNBR) watershed is under a total maximum daily load (TMDL) mandate to reduce loading of soluble phosphorus (P) in impaired river segments. To address these problems, Texas A&M University researchers have developed a Best Management Practice (BMP) that removes excess nutrients from impaired watersheds through turfgrass sod. Harvest of manure-grown sod removes a thin layer of topsoil along with any residual P in this soil layer. In order to assess the impact of the turfgrass BMP on a watershed scale, the Soil and Water Assessment Tool (SWAT) was used to predict water quality changes among four scenarios in the UNBR watershed. The SWAT model was modified to incorporate turfgrass harvest routines for simulation of manure and soil P export during harvest of turfgrass sod. SWAT simulations of the four BMP scenarios predicted reductions of 20% to 36% for instream P loads in the UNBR depending on manure P rate and areas allotted to sod. In addition, total N load was reduced on average by 31% and sediment load declined on average 16.7% at the watershed outlet. The SWAT model predicted up to 176 kg/ha P was removed per harvest of sod top-dressed with 100 kg manure P/ha. Export increased to 258 kg/ha of P per harvest for the manure P application rate of 200 kg/ha. Depending on the implementation scenario, simulations indicated the turfgrass BMP could export between 262 and 784 metric tons of P out of the UNBR watershed every year." |
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| Language: | English |
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| References: | 34 |
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| Note: | Includes map, "North Bosque River", p. 358
Figures
Tables
Graphs |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Stewart, G. R., C. L. Munster, D. M. Vietor, J. G. Arnold, A. M. S. McFarland, R. White, et al. 2006. Simulating water quality improvements in the upper North Bosque River watershed due to phosphorus export through turfgrass sod. Trans. ASABE. 49(2):p. 357-366. |
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| Web URL(s):
http://elibrary.asabe.org/azdez.asp?JID=3&AID=20410&CID=t2006&v=49&i=2&T=2&redirType=
Last checked: 10/03/2013
Requires: PDF Reader
Access conditions: Item is within a limited-access website
http://elibrary.asabe.org/azdez.asp?JID=3&AID=20410&CID=t2006&v=49&i=2&T=1&redirType=
Last checked: 10/03/2013
Access conditions: Item is within a limited-access website |
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MSU catalog number: S 671 .A452 |
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