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| Web URL(s): | http://archive.lib.msu.edu/tic/rpr/2000/72090,%20Ohio%20State, McCoy, hydrology.PDF
Last checked: 02/05/2013
Requires: PDF Reader |
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| Publication Type:
| Report |
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| Material Type: | Manuscript |
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| Monographic Author(s): | McCoy, Ed |
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| Author Affiliation: | Ohio State University |
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| Monograph Title: | Understanding the Hyrology of Modern Putting Green Constuction Methods: Progress Report, November 2000, 2000. |
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| Publishing Information: | [Columbus, Ohio]: Ohio State University |
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| # of Pages: | 10 |
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| Collation: | 10 pp. |
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| Abstract/Contents: | "This research program investigates putting green construction issues and their impact on the hydrology of the root zone. The hydrologic processes include water infiltration, redistribution whithin the root zone, drainage, and uptake by the turf. The study is subdivided into Phases I and II. Phase I focuses on water redistribution and drainage as influenced by presence or absence of a gravel layer, root zone composition and green slope. Phase II focuses on turf water use in a USGA profile as influenced by root zone composition (unamended sand, sand + peat, sant + peat + soil) and depth (9 to 12 inches). The Phase II research of this report was conducted as a water balance study wherein daily measurements were made of rainfall or irrigation amounts, root zone water contents, drainage volumes, and turf evapotranspiration (ET) from the experimental greens. Additionally, water was withheld for varying intervals at two times during the study. During these rain free intervals, turf response was additionally recorded using digital photography for subsequent image analysis and using spectral reflectance measurements. End of season measurements include root weights and soil physical properties. Sand texture (coarse vs. fine) of the unamended root zones did not yield any appreciable difference in soil moisture throughout the study period. There was, however, an unteraction between sand texture and amendment. For coarse sand mixes, progressively higher soils moistures were observed with increased levels of amendment. Thus, the peat + soil amendment yielded the highest soil moistures. For fine sand mixes, the ordering between peat + soil and peat alone was reversed so that amending fine sand with only peat resulted in the highest water contents. During rain free intervals, turf water uptake occurred throughout the root zone regardless of the root zone depth. Consquently, the 9-inch root zone exhibited lower soil moistures that the 12-inch root zone for all measurement depths. Further, we did not observe strong evidence for the creation and/or maintenance of the perched water in the experimental root zones during the entire study period. Selected treatments of this study yielded turf ET differences during the two rain free intervals. During the first and more severe rain free interval the 12-inch root zone showed higher cumulative ET than the 9-inch root zone. Additionally, the unamended sand had lower cululative ET as compared with amending the root zone with peat. The peat + soil amendment was intermediate, particularly for the 12-inch root zone. A similar amendment effect was observed during the second rain free interval." |
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| Language: | English |
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| References: | 0 |
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| See Also: | See also related summary article, "Understanding the hydrology of modern putting green construction methods", 2000 Turfgrass and Environmental Research Summary [USGA], 2000, p. 3, R=72090. R=72090 |
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| Note: | Graphs
Also appears as pp. 28-37 in the USGA Turfgrass Research Committee Reporting Binders for 2000
"November 2000" |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
No defined citation format for TGIF #: 214929 |
| Fastlink to access this record outside TGIF: https://tic.lib.msu.edu/tgif/flink?recno=214929 |
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Last checked: 02/05/2013
Requires: PDF Reader |
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