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

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HOSSEINZADEH M.; ESMAILI R.; KALHOR S.N.; NOSRATI K.

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Journal: Environmental Erosion Research Year:2011 | Volume:1 | Issue:1 Page(s): 57-75

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Information Journal Paper

Title

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. | Issue Writer Certificate

Keywords

STREAM EROSIONQ2

CLUSTER ANALYSIS (CA)Q2

DISCRIMINANT ANALYSISQ2

KOJOOR REGIONQ2

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.

Cites

RELATION BETWEEN DRAINAGE DENSITY AND SOIL EROSION RATE (CASE STUDY: FIVE WATERSHEDS IN ARDEBIL PROVINCE, IRAN)

References

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APA: Copy

HOSSEINZADEH, M., ESMAILI, R., KALHOR, S.N., & 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. SID. https://sid.ir/paper/223067/en

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[Internet]. 2011;1(1):57-75. Available from: https://sid.ir/paper/223067/en

IEEE: Copy

M. HOSSEINZADEH, R. ESMAILI, S.N. KALHOR, and K. NOSRATI, “ASSESSMENT OF SPATIAL CHANGES OF STREAM EROSION UNDER ENVIRONMENTAL FACTORS IN KOJOOR FIROOZKOLAY REGION USING MULTIVARIATE STATISTICAL TECHNIQUES,” ENVIRONMENTAL EROSION RESEARCHES, vol. 1, no. 1, pp. 57–75, 2011, [Online]. Available: https://sid.ir/paper/223067/en

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