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News Release 17-047
In a drought, over-irrigated lawns lose 70 billion gallons of water a year
Research in Los Angeles shows water loss in city's wealthy neighborhoods double that of poorer areas
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Researchers estimated the flow of water vapor from the soil to the atmosphere in Los Angeles landscapes.
Credit: Diane Pataki
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The scientists found that 70 percent of Los Angeles' evapotranspiration comes from irrigated lawns.
Credit: Diane Pataki
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Trees account for some 30 percent of Los Angeles' water loss to the atmosphere.
Credit: Diane Pataki
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For the study, the researchers took measurements in the urban tree canopy throughout Los Angeles.
Credit: Diane Pataki
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The scientists modeled transpiration using sap flow sensors installed on trees in L.A.
Credit: Diane Pataki
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Researcher Elizaveta Litvak installs sap flow sensors on Los Angeles trees.
Credit: Diane Pataki
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