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Paper Information

Journal:   JOURNAL OF RANGE AND WATERSHED MANAGEMENT (IRANIAN JOURNAL OF NATURAL RESOURCES)   WINTER 2016 , Volume 68 , Number 4; Page(s) 691 To 710.
 
Paper: 

ASSESSMENT OF AGGREGATE STABILITY AND DETERMINATION OF INSTABILITY MECHANISM OF SOILS IN TALEGHAN WATERSHED

 
 
Author(s):  ARMIN MOHSEN*, AHMADI HASAN, ROUHIPOUR HASAN, SALAJEGHEH ALI, MAHDIAN MOHAMMAD HOSSEIN, GHORBANNIA KHEYBARI VAJIHE
 
* COLLAGE OF NATURAL RESOURCES, UNIVERSITY OF YASUJ, I.R. IRAN
 
Abstract: 

Due to the constraints in determining of soil susceptibility to water erosion or soil erodibility through field tests, use of laboratory methods on small soil samples (<100 g), are easy to implement and far less expensive and time-consuming. Results of research conducted in this area indicate that among different laboratory methods based on the soil properties, those relating to aggregate stability have received much attention. In this study, by relying on observations and changes in the macroscopic scale of homogeneous work units in soils of taleghan watershed, with 3260 hectares in area, 84 points as the soil sampling points were selected. In order to distinction between aggregate breakdown mechanisms and assessing of soil structural behavior in different environmental conditions, aggregate stability is measured with respect to three treatments fast wetting, slow wetting and stirring after pre-wetting using Le Bissonnais method. Also, the effect of various types of water erosion on aggregate stability has been investigated using wet aggregate stability index. Results showed that aggregate breakdown mechanisms have a significant influence on aggregate stability. The instability mechanism of soils in Taleghan watershed is slaking that caused by the compression of entrapped air during fast wetting and this situation can occur during rain storms on dry soils. Also, the results showed that there is no significant difference between wet aggregate stability in various types of water erosion.

 
Keyword(s): AGGREGATE BREAKDOWN MECHANISM, AGGREGATE STABILITY, SLAKING, TALEGHAN
 
 
References: 
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Click to Cite.
APA: Copy

ARMIN, M., & AHMADI, H., & ROUHIPOUR, H., & SALAJEGHEH, A., & MAHDIAN, M., & GHORBANNIA KHEYBARI, V. (2016). ASSESSMENT OF AGGREGATE STABILITY AND DETERMINATION OF INSTABILITY MECHANISM OF SOILS IN TALEGHAN WATERSHED. JOURNAL OF RANGE AND WATERSHED MANAGEMENT (IRANIAN JOURNAL OF NATURAL RESOURCES), 68(4), 691-710. https://www.sid.ir/en/journal/ViewPaper.aspx?id=509208



Vancouver: Copy

ARMIN MOHSEN, AHMADI HASAN, ROUHIPOUR HASAN, SALAJEGHEH ALI, MAHDIAN MOHAMMAD HOSSEIN, GHORBANNIA KHEYBARI VAJIHE. ASSESSMENT OF AGGREGATE STABILITY AND DETERMINATION OF INSTABILITY MECHANISM OF SOILS IN TALEGHAN WATERSHED. JOURNAL OF RANGE AND WATERSHED MANAGEMENT (IRANIAN JOURNAL OF NATURAL RESOURCES). 2016 [cited 2021May07];68(4):691-710. Available from: https://www.sid.ir/en/journal/ViewPaper.aspx?id=509208



IEEE: Copy

ARMIN, M., AHMADI, H., ROUHIPOUR, H., SALAJEGHEH, A., MAHDIAN, M., GHORBANNIA KHEYBARI, V., 2016. ASSESSMENT OF AGGREGATE STABILITY AND DETERMINATION OF INSTABILITY MECHANISM OF SOILS IN TALEGHAN WATERSHED. JOURNAL OF RANGE AND WATERSHED MANAGEMENT (IRANIAN JOURNAL OF NATURAL RESOURCES), [online] 68(4), pp.691-710. Available: https://www.sid.ir/en/journal/ViewPaper.aspx?id=509208.



 
 
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