COMPARISON OF SOME DETACHABILITY INDICES IN RELATION TO SOIL ERODIBILITY ( KUSLE ) FOR CALCAREOUS SOILS

Qurut, Guljihan Abdullah; Hassan, Khalid Falih

doi:10.33899/magrj.2019.125984.1005

	COMPARISON OF SOME DETACHABILITY INDICES IN RELATION TO SOIL ERODIBILITY ( KUSLE ) FOR CALCAREOUS SOILS
Mesopotamia Journal of Agriculture
Article 1, Volume 47, Issue 4, 2019, Pages 1-7 PDF (838.56 K)
Document Type: Research
DOI: 10.33899/magrj.2019.125984.1005
Authors
Guljihan Abdullah Qurut^* ¹; Khalid Falih Hassan²
¹Department of Soil and Water Resources Sciences, Faculty of Agriculture and Forestry, University of Mosul, Mosul
²علوم التربة والموارد المائیة , کلیة الزراعة والغابات , جامعة الموصل , موصل , عراق
Abstract
ABSTRACT The objective of this study was to use some indices related to soil aggregate instead of soil erodibility factor KUSLE of the universal soil loss equation ( USLE ) for a selected calcareous soils. Twelve composite calcareous soil samples from 0 - 15 cm depth were collected from 12 different locations at Nineveh provenance. The selected soils were analyzed for five commonly used erodibility indices used for identify soil erodibility .These indices are ; Clay Aggregation Index (CAI ) , Clay Dispersion Ratio (CDR) , Clay Flocculation Index( CFI ), Dispersion ratio ( DR ), and Erosion Index of Bouyoucos ( EIB) The results indicated that there is a highly significant positive correlation ( r = 0.891**) between EIB and KUSLE in comparison to the other criteria which pointed a weak correlation Also ,the results show through variance analysis that the mean of the criterion EIB values ( 3.651 ) was very close to the mean of the KUSLE values ( 3.839 ). These results mean that EIB is more reliable index for prediction the soil erodibility in calcareous soils.
Keywords
Detachment,,; ,،,؛Water erosion,,; ,،,؛Calcareous soils

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