The sand flux decreased monotonically as it transitioned from a flat bed to a stable state; however, note that such a decrease in the sand flux is not generally observed, because natural locations are generally regarded to be in a stable state relative to the time scale of the observation.
The upper 5 cm of the sediment in the push core differed from the 15 20 cm in the box corer by an increase in the clay and silt content(clay: 22% vs. 37±1.2%, silt: 47% vs. 53±2.3%, respectively) and a decrease in the sand fraction (32% vs. 10±1.9%, respectively)with depth.
Sandstone coreflooding experiment also confirmed a 90% decrease in sand production after the hydrogel injection.
A 20 % decrease in sand content and 10%and30%30 % increase in silt and clay contents respectively were noted in the T 3 among different treatment plots (Table 1).
Since 1960, the Israeli coastal dunes have undergone a stabilization process that is manifested in the increase of vegetation cover and in a decrease in the abundance of sand-living flora and fauna species.
There has been little discussion of the decrease in sand flux prior to a stable state that is seen in mathematical models.
On the other hand, the coarse sand particles of 1.0 mm easily detach themselves from the oil layer compared to finer sand particles of 0.125 mm which implicate that the attachment forces between oil and sand particles increase with the decrease in sand particle size.
Dramatic rise in earthworm densities coupled with remarkable increase in clay contents and decrease in sand contents in T 3 plots compared to T 0 and other treatment plots are noticeable.
The west to east increase in vegetation cover, decrease in sand burial and increase in amount of precipitation are interrelated with the distribution of the three Caragana species.
However, the dependence of passive current density on sand concentration became more significant with a decrease in borate concentration.
