EVALUATION OF SOIL ERODIBILITY FACTOR (K) FOR LOESS DERIVED LANDFORMS OF KECHIK WATERSHED IN GOLESTAN PROVINCE

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KHORMAI H.; KIANI F.; KHORMALI F.

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Journal: Journal of Water and Soil Year:2017 | Volume:30 | Issue:6 Page(s): 2078-2086

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Title

EVALUATION OF SOIL ERODIBILITY FACTOR (K) FOR LOESS DERIVED LANDFORMS OF KECHIK WATERSHED IN GOLESTAN PROVINCE

Author(s)

KHORMAI H. | KIANI F. | KHORMALI F. | Issue Writer Certificate

Keywords

EROSIONQ1

FOURNIER INDEXQ2

USLE MODELQ1

WISCHMEIER & SMITH NOMOGRAPHQ1

Abstract

Introduction: Globally, Soil EROSION is a principal degradation process resulting in negative impacts on different soil functions (food and other biomass production, water storing, filtering and transformation, habitat and gene pool, physical and cultural environment for mankind, and source of raw materials) which ultimately causes irreversible effect on the poorly renewable soil resource. Determination of the soil erodibility factor (K-factor) is a cumbersome and expensive undertaking in the effort to predict the soil loss rates. Soil erodibility (K-value) is a key parameter in EROSION prediction and is important for conservation planning in the face of a rising need for protecting the limited land resources. The technique proposed by Wischmeier& Smith for estimating the soil erodibility factor is among the most important methods in this regard.Materials and Methods: Given the high amounts of silt and lime content in loess soils of eastern parts of Golestan province, the purpose of this study was to evaluate the ability of Wischmeier & Smith index to estimate the soil erodibility of this region. In this study, soil erodibility was obtained by Wischmeier's nomograph and then was compared with the actual values obtained by selecting three plots and then performing physical and chemical tests on these samples.

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APA: Copy

KHORMAI, H., KIANI, F., & KHORMALI, F.. (2017). EVALUATION OF SOIL ERODIBILITY FACTOR (K) FOR LOESS DERIVED LANDFORMS OF KECHIK WATERSHED IN GOLESTAN PROVINCE. JOURNAL OF WATER AND SOIL (AGRICULTURAL SCIENCES AND TECHNOLOGY), 30(6 ), 2078-2086. SID. https://sid.ir/paper/141809/en

Vancouver: Copy

KHORMAI H., KIANI F., KHORMALI F.. EVALUATION OF SOIL ERODIBILITY FACTOR (K) FOR LOESS DERIVED LANDFORMS OF KECHIK WATERSHED IN GOLESTAN PROVINCE. JOURNAL OF WATER AND SOIL (AGRICULTURAL SCIENCES AND TECHNOLOGY)[Internet]. 2017;30(6 ):2078-2086. Available from: https://sid.ir/paper/141809/en

IEEE: Copy

H. KHORMAI, F. KIANI, and F. KHORMALI, “EVALUATION OF SOIL ERODIBILITY FACTOR (K) FOR LOESS DERIVED LANDFORMS OF KECHIK WATERSHED IN GOLESTAN PROVINCE,” JOURNAL OF WATER AND SOIL (AGRICULTURAL SCIENCES AND TECHNOLOGY), vol. 30, no. 6 , pp. 2078–2086, 2017, [Online]. Available: https://sid.ir/paper/141809/en

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