Record Details

page 3-93

Digital Collections at BYU

Field Value
Title page 3-93 Phase II summary report (final) : Utah Lake water quality, hydrology and aquatic biology impact analysis summary for the irrigation and drainage system--Bonneville Unit, Central Utah Project, page 3-93
Coverage Electronic reproduction;
Format 3-93 text/PDF
Rights Brigham Young University; http://lib.byu.edu/about/copyright/generic.php Public Domain Public
Language English; eng; en
Relation Central Utah Project; Western Waters Digital Library; TDS averaging 1500 mgl mg1 mgt one year after 2200 two years after 3700 three years after 0 8200 8 200 four years after over 20000 five years after and over 40000 six yearsafter year safter from then on TDS levels will fluctuate between 5000 and 100000 mgl mg1 ugi mgt note the lower TDS values under dike plan IV but even these values are above maximum tolerance limits for most aquatic marsh or moist soil plants brotherson and evenson 1982 reported that under fluctuating water levels and increasing levels of soil soluble salts up to 40000 ppm lake bottom sediments would be invaded by saltcedar salt cedar and saline meadow communities both characterized by dense saltgrass salt grass growths if salt levels continue to increase the result would be saline playa saltcedar Salt cedar after becoming established can survive one to two years of flooding with water over one foot in depth most marsh plants cannot survive flooding to that depth for more than a couple of months the projected water level fluctuations in goshen bay following diking certainly seem to favor the saltcedar salt cedar community in most of goshen bay between the 4480 and 4484 elevation contours above the saline playa soil soluble salts will tend to increase following each successive flooding and water level retreat figure 3d ad 3 reflects the relative position of four community types in relation to soil soluble salt concentrations and soil moisture conditions any small raised land mass will form a hummock with a zone of salt concentration surrounding it and a moisture gradient increasing downhill from the top vegetation zones will form in response to soil salt and moisture levels A common hummock will have a greasewood shadscale vegetative community on top saltgrass salt grass and related vegetation on the sides and glasswort salicornia and other saline playa plants along the lower edges insect pest species will also be found in distinct zones on these hummocks any area with surface freshwater such as seeps and springs or surface runoff soil salts will be reduced allowing islands of marsh type vegetation to become established among areas of saline meadows and playas olayas these areas will probably be overgrown by saltcedar salt cedar in saltcedar salt cedar areas since saltcedar salt cedar seedlings do best when surface soil moisture 3 93
Identifier http://cdm15999.contentdm.oclc.org/cdm/ref/collection/WesternWatersProject/id/9202

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