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Paper Information

Journal:   ENVIRONMENTAL EROSION RESEARCHES   SPRING 2011 , Volume 1 , Number 1; Page(s) 57 To 75.
 
Paper: 

ASSESSMENT OF SPATIAL CHANGES OF STREAM EROSION UNDER ENVIRONMENTAL FACTORS IN KOJOOR FIROOZKOLAY REGION USING MULTIVARIATE STATISTICAL TECHNIQUES

 
 
Author(s):  HOSSEINZADEH M., ESMAILI R., KALHOR S.N., NOSRATI K.
 
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Abstract: 

Water erosion has a fundamental and important role in environmental degradation and in order to prevent of its effects the knowledge of soil erosion process is needed. Stream erosion is one of the most important types of water erosion. In this study the role of environmental factors including slope, hypsometric classes, slope aspect, geological formation and soil erodibility in drainage density as stream erosion characteristic were investigated in Kojoor, Firoozkolay region. In view of this, drainage density layer were overlaid with independent variables and drainage density were determined in different classes. The relationship of drainage density and independent variables were investigated using regression models. Effective classes (effective clusters) in drainage density and the assigned clusters were tested using cluster analysis (CA) and discriminant analysis (DA), respectively. The results showed that vegetation type has a direct affect on water erosion so that length frequency and erosional density is higher in rangeland compared to forest cover. The results of regression model showed a significant exponential correlation between drainage density and slope, hypsometric class and slope aspect. Hierarchical CA grouped the 25 variables from rangeland and 29 variables from forest into four and three clusters, respectively based on the similarity of catchment characteristics. DA provided an important data reduction affording more than 79% and 56% correct assignations in rangeland and forest, respectively to discriminate between the clusters of catchment characteristics in the study area.

 
Keyword(s): STREAM EROSION, CLUSTER ANALYSIS (CA), DISCRIMINANT ANALYSIS, KOJOOR REGION
 
 
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+ Click to Cite.
APA: Copy

HOSSEINZADEH, M., & ESMAILI, R., & KALHOR, S., & NOSRATI, K. (2011). ASSESSMENT OF SPATIAL CHANGES OF STREAM EROSION UNDER ENVIRONMENTAL FACTORS IN KOJOOR FIROOZKOLAY REGION USING MULTIVARIATE STATISTICAL TECHNIQUES. ENVIRONMENTAL EROSION RESEARCHES, 1(1), 57-75. https://www.sid.ir/en/journal/ViewPaper.aspx?id=273200



Vancouver: Copy

HOSSEINZADEH M., ESMAILI R., KALHOR S.N., NOSRATI K.. ASSESSMENT OF SPATIAL CHANGES OF STREAM EROSION UNDER ENVIRONMENTAL FACTORS IN KOJOOR FIROOZKOLAY REGION USING MULTIVARIATE STATISTICAL TECHNIQUES. ENVIRONMENTAL EROSION RESEARCHES. 2011 [cited 2021May16];1(1):57-75. Available from: https://www.sid.ir/en/journal/ViewPaper.aspx?id=273200



IEEE: Copy

HOSSEINZADEH, M., ESMAILI, R., KALHOR, S., NOSRATI, K., 2011. ASSESSMENT OF SPATIAL CHANGES OF STREAM EROSION UNDER ENVIRONMENTAL FACTORS IN KOJOOR FIROOZKOLAY REGION USING MULTIVARIATE STATISTICAL TECHNIQUES. ENVIRONMENTAL EROSION RESEARCHES, [online] 1(1), pp.57-75. Available: https://www.sid.ir/en/journal/ViewPaper.aspx?id=273200.



 
 
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