The effect of ecological and climatic changes on the human population in Euphrates flood-plain (Haditha area): During 11000 Y.B.P to present

The study of Euphrates Floodplain in Barwana city (6km south of Haditha) show many vegetational, climatic and archaeological evidences that indicate many style of human living in the area during that period.
The palynological evidence (pollen & spores). shows that the old human during 11000-9000 Y.B.P depend on grazing animals till the great Noah Deluge.
As a result of that Deluge and the climatic fluctuations effected the area, they begin to find a new style of living and made a small population in the lands near the river and tried to agriculture it, where the palynological evidences shows field plants (many types of cereals) during 9000-5000 Y.B.P. which means wet climate and continuous summer precipitation.
Many archeological ceramic pieces found in the sediments at depth (250 cm). Which deduced that the human begin to made a new civilization in the area after the dry periods which leads to desertification phase effected the area form 35 00 Y.B.P., and the same condition of dryness’ continuous till the present time and begin to made anew irrigation system. The palynological evidences also show that the human had a real impact on desertification.