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  • This almond orchard near Durham in Butte County, shown in 2017, was one of 10 sites studied to determine soil water content in cover cropped versus non-cover cropped almond orchards and tomato fields from 2016 to 2019.
    New cover crop research can help groundwater sustainability agencies plan

    Dec 21, 2021

    • Agriculture
  • After six weeks of pulsed flooding for groundwater recharge, the alfalfa did not show a significant decline in yield. Photo by Helen Dahlke
    California groundwater could get recharging help from alfalfa farms

    Dec 6, 2021

    • Agriculture
    • Natural Resources
  • UC Davis Professor Isaya Kisekka and students measure soil moisture content using a neutron probe at the UC Davis Agricultural Research Station in 2018.
    UC Davis to lead groundwater and irrigated agriculture sustainability study

    Oct 18, 2021

    • Agriculture
  • UCCE Modoc County director Laura Snell looks for African wire grass, a non-native invasive annual grass populating western rangelands. Photo by Charles Post
    UCCE director finds place among women leaders of Modoc County

    Oct 12, 2021

    • Agriculture
    • Economic Development
    • Environment
    • Natural Resources
  • The new Net Zero Initiative project will examine the effects of value-added dairy manure products. Composted dairy manure used as fertilizer shown in an almond orchard. Photo by Sat Darshan Khalsa
    Dairy’s Net Zero Initiative gets boost with $10 million research grant

    Jul 1, 2021

    • Agriculture
  • California's developed water is vital to urban areas, irrigated agriculture and the environment.
    There’s a danger in over-simplifying California water conservation

    Jun 7, 2021

    • Agriculture
    • Environment
  • Integrated hydrologic science professor Helen Dahlke in an almond orchard being flooded for groundwater recharge.
    Flooding alfalfa fields has high potential for groundwater recharge

    Jan 19, 2018

    • Agriculture
    • Natural Resources
  • Groundwater is drawn by a pump to irrigate almonds in Fresno County.
    California's new groundwater law leaves unanswered questions

    Aug 25, 2016

  • Professors and Delta Independent Science Board members Vincent Resh (right) and Richard Norgaard stand on a levee on Sherman Island along the Sacramento River. (Photo: Edward Caldwell)
    California’s delta: On the front lines of the state’s water issues

    Feb 26, 2016

  • From left, UC Davis plant sciences professor Ken Shackel speaks with research project partners UC Davis professor Helen Dahlke (in the purple jacket) and Roger Duncan, UC ANR Cooperative Extension advisor, at the flooding site.
    Researchers study farm field flooding for aquifer recharge

    Jan 21, 2016

  • UC researchers Helen Dahlke, left, and Toby O'Geen. (Photo: Diane Nelson)
    Groundwater banking captures the media's imagination

    Dec 9, 2015

  • Groundwater destined for almonds.
    California water is not 'liquid'

    Aug 7, 2015

  • Fallow fields could be used as percolation basins for groundwater recharge.
    Replenishing California groundwater may be done by flooding farm fields in rainy years

    Jul 21, 2015

  • Some landowners believe the water underneath their property belongs to them. (Photo of Santa Ynez vineyard: Pixabay)
    Many landowners believe they own underlying groundwater

    May 14, 2015

  • Because of a 64-year-old law in California, groundwater information (like groundwater) is out of sight.
    Groundwater records should be public, says UC ANR expert

    Mar 30, 2015

  • Microsprinklers have allowed farmers to use water more efficiently, but compared to flood or furrow irrigation, less water percolates down to replenish groundwater.
    Replenishing California groundwater

    Jan 5, 2015

  • New legislation will require some farmers to cut back on groundwater use.
    Farmers of the future will be happy about 2014 groundwater regulations

    Sep 8, 2014

  • Thomas Harter.
    Current groundwater management is not sustainable

    Sep 3, 2014

  • During the drought, California is pumping from wells. UC scientists make recommendations to manage groundwater.
    California's groundwater use during drought threatens future supply

    Jul 16, 2014

  • Groundwater is a vitally important natural resource in California.
    Out-of-sight groundwater is not always well understood

    Apr 7, 2014

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