Effect of Sediments Fluvial Source in Some Properties of Alluvial Soils abutting for  Shatt Alarab River.

A.  Kadhim, Mohammed

	Effect of Sediments Fluvial Source in Some Properties of Alluvial Soils abutting for Shatt Alarab River.
JOURNAL OF THI-QAR SCIENCE
Article 1, Volume 3, Issue 4, 2013, Pages 65-78
Author
Mohammed A. Kadhim
Abstract
The study was conducted to know the effect of sediments fluvial source on some alluvial soils properties abutting for Shatt Alarab River. Two strips were chosen the first stripe at Alharitha region which represented by pedons 1 and 2, while the second stripe at Al seeba region which represented by pedons 3 and 4. The sedimentation sources were Shatt Alarab at the first stripe while the sedimentation sources were Karun River and Shatt Alarab at the second stripe. The result of investigated soils showed varies in some morphology properties according to landscape position and the different sedimentation sources (river). There are variations in the soil color values through the Hue which was at the first stripe 10 YR while at the second stripe was 7.5 YR and different Value and Chroma between the two stripes. Also, the dominance structure was angular blocky and this showed effect of sedimentation type and its source and sedimentation process conditions. The results of physical analysis showed sudden variation of texture has been found in both vertical and horizontal direction with dominance of clay and silt particles and decreasing in sand particle percent except the pedon 1 and 3 with horizons moderate fine texture and horizons moderate . And that dependes on sedimentation rate according to distance from the sedimentation sources (river). The bulk density was increases with increasing the depth comparing with surface horizon and the lower values appears in the pedon 1. The results of chemical analysis was indicated that organic matter content at about 2.20 – 12.20 gm .kg-1 and the highest values appear in a surface horizons especially in the pedon 1 . Also the data showed that CaCO3 content was increase in the area of study with homogenous in depth at values of 165 – 455 gm .kg-1 , as well E.C values varies from low to medium values in the first stripe while the soils in the second stripe appeared of ahigh salinity values . The pH values were within natural range of Iraqi soils in the two strips at values about (7.12 – 8.11).

Statistics Article View: 114 PDF Download: 22