Centrifugal irrigation pumps discharge fluids at high velocities that must be slowed
to minimize energy losses due to friction. Pipe expansions make the transition to larger
pipes associated with slower velocities. Expansions convert the upstream velocity head
to static head in the downstream pipe. The transition to a larger pipe...
In a drought, every gallon of water saved means more crop production. There are many places in a typical irrigation operation where water is lost. Here are some prudent management practices that can conserve water and possibly make the difference between making a profit or taking a loss.
Note: These...
in a drought, every gallon of water saved
means more crop production. There are many
places in a typical irrigation operation where
water is lost. Here are some prudent management
practices that can conserve water and
possibly make the difference between making
a profit or taking a loss.
Note: These...
Research was conducted to determine the applicability of using the theory of
regionalized variables or geostatistics in characterizing the spatial variability of reference
evapotranspiration (ETr) over various climatic regimes for the state of Oregon. The state was
divided into five climatic regions based on topographic features and local meteorological
conditions:...
Groundwater is an important resource in
Oregon. As more people depend on groundwater,
some water tables around the State are dropping,
threatening their water supplies. State law
requires that groundwater be managed as a
renewable resource, and that water tables do not
drop permanently.
Published October 1988. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Measuring the flow rate of water is the first step to good water management. All water right holders in the State of Oregon must be able to measure the flow rate of the water being diverted.
Hypoxia is a naturally occurring phenomenon that happens seasonally off the Oregon coast. As a consequence, there has been a great deal of research focused around analyzing the strength and duration of the hypoxic event during the summer season. This paper, however, takes an innovative approach by looking at the...
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to survive (1.4 ml/l.)
May 28, 2014
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Photo: NOAA, annauniv.org, wri.org
• Two different
Published January 1986. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog