Determination of the transient water table rise behind constructed underground dams

AbstractAt the Murray Springs Clovis site in southeastern Arizona, stratigraphic and geomorphic evidence indicates that an abnormally low water table 10,900 yr B.P. was followed soon thereafter by a water-table rise accompanied by the deposition of an algal mat (the “black mat”) that buried mammoth tracks, Clovis artifacts, and a well. This water-table fluctuation correlates with pluvial lake fluctuations in the Great Basin during and immediately following Clovis occupation of that region. Many elements of Pleistocene megafauna in North America became extinct during the dry period. Oxygen isotope records show a marked decrease in δ18O correlated with the Younger Dryas cold-dry event of northern Europe which ended 10,750 yr B.P., essentially the same time as the water table began to rise in southeastern Arizona. Clovis hunters may have found large game animals easier prey when concentrated at water holes and under stress. If so, both climate and human predation contributed to Pleistocene extinction in America.

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RAPID WATER TABLE RISE

JAWRA Journal of the American Water Resources Association ◽

10.1111/j.1752-1688.1982.tb00056.x ◽

1982 ◽

Vol 18 (4) ◽

pp. 713-715 ◽

Cited By ~ 15

Author(s):

Arnold L. O'Brien

Keyword(s):

Water Table ◽

Water Table Rise

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Determination of Shallow Ground Water Table in the Bangkok Clay using Seismic Refraction

10.3997/2214-4609.202071093 ◽

2020 ◽

Author(s):

K. Sangprasat ◽

R. Onsibut ◽

P. Barbier ◽

F. Levitre ◽

B. Amante ◽

...

Keyword(s):

Ground Water ◽

Water Table ◽

Seismic Refraction ◽

Ground Water Table

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Effect of temporary rise of saline water table on dry matter yield of oats (Avena byzantina)

Australian Journal of Experimental Agriculture ◽

10.1071/ea9740811 ◽

1974 ◽

Vol 14 (71) ◽

pp. 811 ◽

Cited By ~ 1

Author(s):

FG Abd-El-Kaddous

Keyword(s):

Water Table ◽

Dry Matter ◽

Saline Water ◽

Growth Stages ◽

Dry Matter Yield ◽

Water Tables ◽

Temporary Rise ◽

Effect On Yield ◽

Water Table Rise ◽

Yield Of Oats

In 1968 and 1969, at Kerang, Victoria, the dry matter yield of oats (Avena byzantina) grown on a sodic soil were measured under conditions of fluctuating saline (31 mmhos cm-1) water tables. In each year, a water table was established for 14 days at one of three growth stages and at depths varying from 7.5 to 90 cm. Relative to the yield obtained when the water table remained at 90 cm depth, dry matter yields were reduced by 70 per cent (1968) and 79 per cent (1969) by one temporary water table rise to a depth of 7.5 cm for 14 days. Intermediate reductions in yields occurred when the water tables rose temporarily to intermediate depths from 82.5 cm to 15 cm (7.5 cm intervals). The growth stage at which the water table rise occurred had no significant effect on yield, except in the second period in 1969 when yield was reduced during conditions of high temperature and low evaporation.

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