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vol-15THE HYDROLOGY OF LAKE QARUN, FAYOUM PROVINCE, EGYPI’.
PART I: PHYSICAL ENVIRONMENTAL CONDITIONS.
G.F. SOLIMAN
National Institute Of oceanography And Fisheries, Alexandria.
ABSTRACT
lake Qarun showed In the last 75 years a sequence of changes in
its salinity aOO a decline in its productivity. These phenomena
attracted many investigators to explain aOO discuss them. Host of
the resul ts sho…ed great f l uctuat ions in the sal t content of the
Lake …ater or its salinity aOO accordingly “”,ny difficulties were
found to interpolate the resul ts.
fe.. trips have been carried out through the period 1981 • 1982,
during which water terrperature eoo salinity have been measured
while the meteorological conditions and the Lake level have been
obtained. The sal;’1;ty of the Lake is found to be a function of
the Lake level (i. e. the inllo……ater through the drains and the
outflow water through evaporation). The salinity values are found
to change markedly according to the Lake level and hence it showed
a negative correlation ..Ith the Lake level. The meteorological
factors as well a~ the hydrographic characterist;cs were
d i scus~,f.’d. Moreover, the month 1l’ and annua l changes in these
pa'”meters …ere condsiderc-d. The mean salinity of the lake is
ra”·’;cd between 31.0 • 32.0%0. It is expected to observe an
incrf!ase in the Lake sat infty during the next few deCAdes.
