THE EFFECT OF THE NATURE OF THE SURFACE OF THE SOIL AND VEGETATION IN THE WATER CUMULATIVE INFILTRATON WITH TIME

Abstract

A field study was conducted to determine the effect of the nature of the soil surface and the presence of vegetation on the cumulative infiltration water in the soil.Three selected sites with 2 replicates for each site within the province of Babylon, locations wery varied in terms of the nature of the soil's surface and the agricultural exploitation , the first site was untapped agriculturaly and compacted the second site wase not used for 6 months, and the third site was planted with grass . water cumulative infiltration water measurements were conducted at the three sites using the twin rings device. The results showed superiority of the third site as it gave the highest grade point the tip of the water infiltration (29.40)cm during the measurement period while the values of the infiltration rates were low in the first and the second site (3.70) and (9.00) cm , due to leaving the soil of the sites without cultivating and exposure of the first site to compaction .