|Author:||Devitt, D. A. ; Morris, R. L.|
|Book Group Author:||NA|
The Colorado River basin is suffering from an extended hydrologic drought, which has led to record low flows on the Colorado River. Discussions have been centred on reducing yearly irrigation amounts to the golf course industry to a value below 1.8m per year, leading to deficit irrigation. An on-going 5-year study of golf courses that are preparing to change water supply to reuse water found that:- (1) long-term (>30 years) use of reuse water will increase rhizosphere soil salinity as high as 40 dS/m; (2) spatial distribution of salts is closely linked to irrigation uniformity and the spatial distribution of soil moisture; (3) average leaching fractions on fairways are estimated to be 0.05 and on greens 0.20; (4) for bermuda-grass on reuse courses only very little change has been observed in parameters such as leaf water potential, canopy temperature and tissue moisture content, compared to fresh-water courses.
|Pages:||145 - 146|
|Journal:||International salinity forum - managing saline soils andwater: science, technology and social issues. Oral PresentationAbstracts, Riverside Convention Center, Riverside, California, USA,25-28 April 2005|
drought, golf courses, irrigation water, lawns and turf,leaching, leaf water potential, rhizosphere, rivers, saline soils,salinization, salts, soil salinity, soil water, spatial distribution,water reuse, water reuse, water supply, Colorado, USA, Cynodon dactylon,Mountain States of USA, Western States of USA, USA, North America,America, Developed Countries, OECD Countries, Great Plains States ofUSA, Cynodon, Poaceae, Cyperales, monocotyledons, angiosperms,Spermatophyta, plants, deficit irrigation, lawns and sports turf, soilmoisture, United States of America, water supplies, Horticultural Crops(FF003) (New March 2000), Plant Water Relations (FF062), Soil WaterManagement (Irrigation and Drainage) (JJ800) (Revised June 2002)[formerly Soil Water Management], Water Resources (PP200), Soil Physics(JJ300), Pollution and Degradation (PP600)