Evaluation of the Effect of Factors Controlling the Proportion of Windblown Dust

The research work examined the effect of various control factors on aeolian dust and mobile sand. These control factors are; biological fences (farms or green belts), preserved areas, and topographical relief. The settled dust was monitored in all seasons for at least one year in Kuwait by fixing upwind to downwind traps around all control factors. Deposited dust illustrated a remarkable decrease downwind of preserved areas, biological fences, and topographical relief by 94%, 26%, and 18% respectively. Also, the deposited dust downwind of Managaish preserved area, and Wafra protected area decreased by 40% and 76% respectively compared to upwind. The deposited dust recorded on the downwind side of the Al-Jahra and the Wafra farms decreased by 63%, and 88% respectively. The downwind dust collectors of the biological fences collected a lower amount of dust by 26%. The uphill dust collector of the biological fences collected a lower amount of dust by 44%. Two other collectors located up and downhill in the Um Rimam depressions showed an 18% rise in dust rates downhill.