EFFECT OF KINETIC ENERGY OF WATER DROPS ON SOIL AGGREGATES AT DIFFERENT LOCATIONS FROM SULAIMANI GOVERNORATE
|Samira Murtadha Dawood
Dept. of soil and water sciences, Faculty of agricultural sciences, University of Sulaimani, Kurdstan region, Iraq
|Received: 20 November 2014 Accepted: 28 December 2014|
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In this study eight locations were choice in Sulaimani Governorate, they were Gowezha, Bakrajo, Rania, Chamchemal, Dokan, Said Sadeq1, Said Sadeq2, Derbendixan. Soil Samples were taken from top soil for all locations and estimated organic matter, particle size distribution, and texture type. Water drop test carried out for soil aggregates by McCalla method, at 30 and 50 cm height for falling water drops. The result showed that there was a positive significant (p<0.05) relationship between kinetic energy and organic matter content at 30 cm and 50 cm height. The correlation coefficient value for 50 cm was (r = 0.89) slightly higher than the correlation coefficient (r = 0.71) for a height 30 cm. There was a positive correlation between KE and clay content and a negative correlation with silt content, but they were not significant at 0.05.