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| DOI: | 10.13031/2013.35891 |
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| Web URL(s): | http://elibrary.asabe.org/azdez.asp?JID=5&AID=35891&CID=ndci2010&T=1
Last checked: 10/11/2017
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http://elibrary.asabe.org/azdez.asp?JID=5&AID=35891&CID=ndci2010&T=2
Last checked: 10/11/2017
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| Publication Type:
| Proceedings |
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| Author(s): | Snyder, Richard L. |
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| Author Affiliation: | Biometeorology Specialist, University of California, LAWR, Davis, CA |
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| Title: | Landscape irrigation scheduling trends in California - From WUCOLS to LIMP |
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| Meeting Info.: | Phoenix, Arizona: December 5-8, 2010 |
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| Source: | 5th National Decennial Irrigation Conference Proceedings. 2010, p. 1-8. |
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| Publishing Information: | [Falls Church, Virginia]: [Irrigation Association] |
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| # of Pages: | 8 |
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| Related Web URL: | https://elibrary.asabe.org/azdez.asp?JID=5&AID=35891&Abstract=83-1042BR.htm&CID=ndci2010&T=3
Last checked: 10/11/2017
Notes: Abstract only |
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| Keywords: | TIC Keywords: Evaluations; Evapotranspiration rate; Irrigation scheduling; Urban water resources; Water management
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| Geographic Terms: | California |
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| Abstract/Contents: | "In this paper, the Water Use Classification of Landscape Species 'WUCOLS' and the Landscape Irrigation Management Program 'LIMP' irrigation scheduling methods and their potential for improved water management in California will be discussed. Since the demand for water is increasing faster than the supply in California, there has been a concerted effort to improve urban water management to reduce non-recoverable losses while maintaining landscape quality. The first effort was development of the WUCOLS method, which provides information on the water usage by employing a set of coefficients to use with reference ET (ET0) to estimate landscape evapotranspiration as ETL = ET0 x Kp x Kd x Km where Kp, Kd, and Km are coefficients to account for plant (species) differences, canopy density, and microclimate effects, respectively. While WUCOLS was a big advance, it has some limitations, which led to development of LIMP. LIMP separates the Kp coefficient into (1) a well-watered vegetation factor (Kv) for canopies with more than 70% ground shading and (2) a stress factor (Ks) that reduces ET for drought tolerant vegetation. A density (Kd) coefficient estimates the reduction in ET as a function of the percentage ground cover, so it is less subjective than in WUCOLS. In the LIMP program, microclimate is addressed by using measured or estimated local and regional climate data to estimate ET0. Then, Km = ET0L/ET0 where ET0L is from estimated or measured local data. Thus, LIMP separates the WUCOLS coefficients into parameters that are easier to calibrate." |
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| Language: | English |
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| References: | 3 |
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| Note: | Tables
Graphs |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Snyder, R. L. 2010. Landscape irrigation scheduling trends in California - From WUCOLS to LIMP. p. 1-8. In 5th National Decennial Irrigation Conference Proceedings. Phoenix, Arizona: December 5-8, 2010. [Falls Church, Virginia]: [Irrigation Association]. |
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| DOI: 10.13031/2013.35891 |
| Web URL(s):
http://elibrary.asabe.org/azdez.asp?JID=5&AID=35891&CID=ndci2010&T=1
Last checked: 10/11/2017
Access conditions: Item is within a limited-access website
http://elibrary.asabe.org/azdez.asp?JID=5&AID=35891&CID=ndci2010&T=2
Last checked: 10/11/2017
Requires: PDF Reader
Access conditions: Item is within a limited-access website |
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MSU catalog number: b9924931 |
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