SIZE AND DENSITY OF NON-ERODIBLE AGGREGATES IN SEDIMENTS OF SELECTED GULLIES AT NORTHERN IRAQ

The objective of this study was to determine the morphometric characteristics and sediment size distribution as affected by position witin the gullies at northern region of Iraq.  The plan area, maximum depression depth, maximum length L and severity index for each gully unit were measured. The size...

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Main Authors: Khalid Hassan, Yousif H. Al-Nasser, Omer N. Abid-Alkader
Format: Article
Language:Arabic
Published: College of Agriculture 2017-06-01
Series:Mesopotamia Journal of Agriculture
Subjects:
Online Access:https://magrj.mosuljournals.com/article_161259_fde9725ef24c5d4583cf2d2cd54b8871.pdf
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author Khalid Hassan
Yousif H. Al-Nasser
Omer N. Abid-Alkader
author_facet Khalid Hassan
Yousif H. Al-Nasser
Omer N. Abid-Alkader
author_sort Khalid Hassan
collection DOAJ
description The objective of this study was to determine the morphometric characteristics and sediment size distribution as affected by position witin the gullies at northern region of Iraq.  The plan area, maximum depression depth, maximum length L and severity index for each gully unit were measured. The size distribution of each gully unit was analyzed mechanically for major grain size fractions and were characterized statistically using various type of statistical measures (median size, sorting, and skewness). The results showed that the addition of finer/coarse materials in 1<sup>st</sup> and 2<sup>nd</sup> catchments was deposited under the prevailing low and high energy conditions respectively.  Moreover the ability of the surface soil to accept the accelerated erosion, in these catchments was related to the stability of aggregates to the shearing force of running water. On the basis of this assumption, we can be expected that, the soil loss in the 1<sup>st</sup> gully catchment was greater than compared to 2nd, and it seems  that the morphometric characteristics and sediment-grain size distribution alone would be insufficient for  predicting  soil loss from gullies.
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spelling doaj.art-6f7acf8cf0a74b0f88444f8b2e4b08992022-12-22T01:24:15ZaraCollege of AgricultureMesopotamia Journal of Agriculture1815-316X2224-97962017-06-0145134134810.33899/magrj.2017.161259161259SIZE AND DENSITY OF NON-ERODIBLE AGGREGATES IN SEDIMENTS OF SELECTED GULLIES AT NORTHERN IRAQKhalid Hassan0Yousif H. Al-Nasser1Omer N. Abid-Alkader2Soil and Water Resources Dept. / College of Agric. and Forestry/Mosul UnivSoil and Water Resources Dept. / College of Agric. and Forestry/Mosul Univ.Soil and Water Resources Dept. / College of Agric. and Forestry/Mosul Univ.The objective of this study was to determine the morphometric characteristics and sediment size distribution as affected by position witin the gullies at northern region of Iraq.  The plan area, maximum depression depth, maximum length L and severity index for each gully unit were measured. The size distribution of each gully unit was analyzed mechanically for major grain size fractions and were characterized statistically using various type of statistical measures (median size, sorting, and skewness). The results showed that the addition of finer/coarse materials in 1<sup>st</sup> and 2<sup>nd</sup> catchments was deposited under the prevailing low and high energy conditions respectively.  Moreover the ability of the surface soil to accept the accelerated erosion, in these catchments was related to the stability of aggregates to the shearing force of running water. On the basis of this assumption, we can be expected that, the soil loss in the 1<sup>st</sup> gully catchment was greater than compared to 2nd, and it seems  that the morphometric characteristics and sediment-grain size distribution alone would be insufficient for  predicting  soil loss from gullies.https://magrj.mosuljournals.com/article_161259_fde9725ef24c5d4583cf2d2cd54b8871.pdfgully erosionsedimentsnon-erodible aggregates
spellingShingle Khalid Hassan
Yousif H. Al-Nasser
Omer N. Abid-Alkader
SIZE AND DENSITY OF NON-ERODIBLE AGGREGATES IN SEDIMENTS OF SELECTED GULLIES AT NORTHERN IRAQ
Mesopotamia Journal of Agriculture
gully erosion
sediments
non-erodible aggregates
title SIZE AND DENSITY OF NON-ERODIBLE AGGREGATES IN SEDIMENTS OF SELECTED GULLIES AT NORTHERN IRAQ
title_full SIZE AND DENSITY OF NON-ERODIBLE AGGREGATES IN SEDIMENTS OF SELECTED GULLIES AT NORTHERN IRAQ
title_fullStr SIZE AND DENSITY OF NON-ERODIBLE AGGREGATES IN SEDIMENTS OF SELECTED GULLIES AT NORTHERN IRAQ
title_full_unstemmed SIZE AND DENSITY OF NON-ERODIBLE AGGREGATES IN SEDIMENTS OF SELECTED GULLIES AT NORTHERN IRAQ
title_short SIZE AND DENSITY OF NON-ERODIBLE AGGREGATES IN SEDIMENTS OF SELECTED GULLIES AT NORTHERN IRAQ
title_sort size and density of non erodible aggregates in sediments of selected gullies at northern iraq
topic gully erosion
sediments
non-erodible aggregates
url https://magrj.mosuljournals.com/article_161259_fde9725ef24c5d4583cf2d2cd54b8871.pdf
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AT yousifhalnasser sizeanddensityofnonerodibleaggregatesinsedimentsofselectedgulliesatnortherniraq
AT omernabidalkader sizeanddensityofnonerodibleaggregatesinsedimentsofselectedgulliesatnortherniraq