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| DOI: | 10.2134/agronj2017.02.0088 |
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| Web URL(s): | https://dl.sciencesocieties.org/publications/aj/articles/109/5/2190
Last checked: 09/08/2017
Access conditions: Item is within a limited-access website
https://dl.sciencesocieties.org/publications/aj/pdfs/109/5/2190
Last checked: 09/08/2017
Requires: PDF Reader
Access conditions: Item is within a limited-access website |
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| Publication Type:
| Refereed |
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| Author(s): | Peterson, K. W.;
Bremer, D. J.;
Shonkwiler, K. B.;
Ham, J. M. |
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| Author Affiliation: | Peterson: TwoPTurf, Orleans, NE; Bremer: Dep. of Horticulture and Natural Resources, Kansas State Univ., Manhattan, KS; Shonkwiler: Dep. of Atmospheric Science, Colorado State Univ., Ft. Collins, CO; Ham: Dep. of Soil and Crop Sciences, Colorado State Univ., Ft. Collins, CO |
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| Title: | Measurement of evapotranspiration in turfgrass: A comparison of techniques |
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| Section: | Climatology & water management
Other records with the "Climatology & water management" Section
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| Source: | Agronomy Journal. Vol. 109, No. 5, September/October 2017, p. 2190-2198. |
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| Publishing Information: | Madison, Wisconsin: American Society of Agronomy |
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| # of Pages: | 9 |
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| Related Web URL: | https://dl.sciencesocieties.org/publications/aj/abstracts/109/5/2190
Last checked: 06/29/2017
Notes: Abstract only |
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| Keywords: | TIC Keywords: Comparisons; Evapotranspiration rate; Festuca arundinacea; Irrigation scheduling; Lysimeters; Mathematical equations; Models
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| Abstract/Contents: | "Evapotranspiration (ET) from turfgrass can be measured directly using lysimeters (LYS), estimated from weather data using models, or approximated using atmometers. Evapotranspiration measurements from LYS were compared with ET estimates from the American Society of Civil Engineers standardized ET equation using hourly steps from measured net radiation (Rn) (ASCEHM) and Rn calculated from global irradiance (ASCEHC), and daily steps from measured net radiation (ASCEDM) and Rn calculated from global irradiance (ASCEDC), the Priestley-Taylor (PT) model, and atmometers, all collocated in a sward of tall fescue (Festuca arundinacea Schreb.) turfgrass near Manhattan, KS. Data were collected on precipitation free days during the growing seasons 2010 through 2012 and analyzed by periods with high ET, low ET, and pooled across all days. Overall mean ET (May-October) ranged from 5.58 (LYS) to 4.47 mm d-1 (ASCEHC). During days with high evaporative demand ET from daily-step models (ASCEDM, ASCEDC) were equivalent to LYS, based on paired t tests. Similarity in ET among LYS, ASCEDM, and ASCEDC indicate using Rn calculated from global irradiance is sufficient in the daily-step model in the absence of measured Rn. At high ET rates ET from ASCEHM and PT was 5 to 9% lower than LYS, but accuracy was significantly reduced (by 22%) with ASCEHC. Atmometer ET averaged 17% lower than LYS, but performance was better at low than high ET. Results indicate the ASCEDC could improve irrigation scheduling in turfgrass by providing accurate ET estimates from standard weather station data where measured Rn is not available." |
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| Language: | English |
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| References: | 41 |
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| Note: | Illustration
Tables
Graphs |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Peterson, K. W., D. J. Bremer, K. B. Shonkwiler, and J. M. Ham. 2017. Measurement of evapotranspiration in turfgrass: A comparison of techniques. Agron. J. 109(5):p. 2190-2198. |
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| DOI: 10.2134/agronj2017.02.0088 |
| Web URL(s):
https://dl.sciencesocieties.org/publications/aj/articles/109/5/2190
Last checked: 09/08/2017
Access conditions: Item is within a limited-access website
https://dl.sciencesocieties.org/publications/aj/pdfs/109/5/2190
Last checked: 09/08/2017
Requires: PDF Reader
Access conditions: Item is within a limited-access website |
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MSU catalog number: b2212646a |
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