UPWARD WATER AND SALT MOVEMENT IN LABORATORY COLUMNS AS AFFECTED BY DEPTH OF WATER TABLE
UPWARD WATER AND SALT MOVEMENT IN LABORATORY COLUMNS AS AFFECTED BY DEPTH OF WATER TABLE
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Date
1995
Authors
OLALEKAN, OGUNWOLE JOSHUA
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Abstract
Polyvinyl chloride pipes of 10cm I.D were used to study
moisture and salt distribution in soil profiles overlying ground
water at various depths (42, 60 and 90cm) and also, at various
ground water electrolyte concentration (1500, 3000 and 4500 mgKcl
per 1itre of water) .
While daily evaporation was constant at 0.6cm and relative
humidity at 50+ 35C, moisture loss and salt, accumulation increased
with decrease in soil profile depth. The role of solute -
induced flow was significant when the effect of ground water
electrolyte concentration was used to determine moisture loss and
ch1oride ion accumu1ation .
Depth of ground water tabic? had little effect on daily
moisture distribution pattern along the soil profile.
Description
A Thesis submitted to the Postgraduate School, Ahmadu Bello
University, in partial fulfillment of the requirements for the
degree of Master of Science (Soil Science)
Department of Soil Science
Faculty of Agriculture
Ahmadu Be11o University
Zaria, Nigeria
Keywords
UPWARD,, WATER,, SALT,, MOVEMENT,, LABORATORY,, COLUMNS,, AFFECTED,, DEPTH,, WATER,, TABLE