Full TGIF Record # 112695
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Web URL(s):http://www.informaworld.com/smpp/section?content=a713624577&fulltext=713240928
    Last checked: 05/08/2007
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Author(s):Raturi, S.; Islam, K. R.; Carroll, M. J.; Hill, R. L.
Author Affiliation:Raturi, Carroll, and Hill: Department of Natural Resource Sciences and Landscape Architecture, University of Maryland, College Park, Maryland; Islam: The Ohio State University South Centers, Piketon, Ohio
Title:Thatch and soil characteristics of cool- and warm-season turfgrasses
Source:Communications in Soil Science and Plant Analysis. Vol. 35, No. 15/16, September 2004, p. 2161-2176.
# of Pages:16
Publishing Information:New York, NY: Marcel Dekker
Keywords:TIC Keywords: Thatch; Cool season turfgrasses; Warm season turfgrasses; Agrostis stolonifera; Zoysia japonica; Soil analysis; Biomass; Bulk density; Carbon
Abstract/Contents:"Turfgrass thatch development is a direct consequence of an imbalance between growth and decomposition of organic residues. This study was conducted to determine the characterstics of thatch and the underlying soil in a three-year-old stand of Southshorecreeping bentgrass (Agrostis palustris Huds.) and a six-year-old stand of Meyer zoysiagrass (Zoysia japonica Steud.). Intact thatch + soil cores were randomly collected from the two sites for thatch and soil bulk density and total porosity determinations. Disturbed samples of thatch and soil were processed and analyzed for total mircobial biomass carbon (C); basal and specific maintenance respiration rates; total C, nitrogen (N) and hydrogen (H) contents; easily mineralizable, soluble, oxidizable and lignin C fractions, and organic matter quality. While the total microbial biomass C content and basal respiration rates were higher in thatches, the specific maintenance respiration rates were significantly lower in soils. Total, soluble, oxidizable and lignin C, and total N and H contents were significantly greater in thatches than in soils. Although the absolute amounts of soluble and oxidizable C contents were smaller in soil than in the thatch, the soluble and oxidizable C as fractions of total C were significantly lower in thatches than in soils. The bentgrass thatch contained more microbial biomass and lignin C than the zoysiagrass thatch. Both thatches had lower bulk densities and higher total porosities than the the underlying soils. Spectrophotometric analyses suggested an accumulation of finer size organic matter in the bentgrass thatch than in the zoysiagrass thatch. An increase in matter in microbial biomass and total C, but a substantial decrease in specific maintenance respiration rates, suggest that thatch development under turf maybe acting as a C sink. A decline in microbial biomass and total C contents, but significant increases in specific maintenance respiration rates, suggest that soils under thatch maybe serving as sources of CO2 to the troposphere. The effect was more pronouced at the zoysiagrass site than at the bentgrass site."
See Also:Other items relating to: Carbon sequestration of turf
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Raturi, S., K. R. Islam, M. J. Carroll, and R. L. Hill. 2004. Thatch and soil characteristics of cool- and warm-season turfgrasses. Commun. Soil. Sci. Plant Anal. 35(15/16):p. 2161-2176.
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DOI: 10.1081/LCSS-200029005
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    Last checked: 05/08/2007
    Access conditions: Item is within a limited-access website
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MSU catalog number: S 590 .C54
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