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The releasing of water with low temperature from reservoir is()ce in several fields of engineering,as well as aquatic biology,agronomy,surface water c()ent transport.One of the most important soil physical properties affected by low tempe()oiI saturated hydraulic conductivity.The relationship between hydraulic conductivity an()dry density was measured under different water temperatures of 10,15,20,and 25~C and().5,and 1.6 gcm3.The results show that the hydraulic conductivities of all the silty cla()cm s-1 and the relationship between the hydraulic conductivity and the silty clay dry den()garithmic curve.The hydraulic conductivities decrease faster with increasing dry dens()cm-3 and decrease sluggish with increasing dry densities from 1.5 to 1.6 gcm-3.The()es of dry densities of 1.4,1.5,and 1.6 gcm-3 at the temperature of 25"C increase up to()at 1O℃.The permeability factors for the silty clay with dry density of 1.4 gcm-3 are ne()perature range of 10 to 25℃.But in the case of 1.5 and 1.6 gcm-3,there are con()ong the calculated permeability factors,and the mean value at each temperature is som