Effect of topographic threshold conditions for gully head development in different use (Case study: Boushehr province)

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RAHI GHOLAMREZA; Kaviyan Ataollah; SOLEIMANI KARIM; Pourghasemi hamid

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Journal Paper

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Journal: Journal of Range and Watershed Managment Year:2021 | Volume:74 | Issue:1 Page(s): 69-81

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Title

Effect of topographic threshold conditions for gully head development in different use (Case study: Boushehr province)

Author(s)

RAHI GHOLAMREZA | Kaviyan Ataollah | SOLEIMANI KARIM | Pourghasemi hamid | Issue Writer Certificate

Keywords

Gully erosionQ1

thresholdQ1

topographyQ2

Land useQ1

Area-SlopQ1

Abstract

Creating a gully is a reaction to the geomorphologic conditions, this type of erosion extends over a wide range of environments, and the threshold of topography is related to the slope and drainage level and Controls the position and expansion of gullies in different uses. The slop-area equation as a relationship between the slope and the upstream area of the watershed in any area will in part help predict Gully erosion. The above relationship has been influenced by several factors including environmental conditions (climate, lithology, soil type), the type of Land use, and the type of effective mechanisms for the creation and expansion of the gully (surface flow, sub-surface flow, dissolation, and piping), and the type of method used for extraction of slope-area is located. And this is the simplest formula used by two parameters to predict Gully erosion. The results show that the value of the relationship between-0. 233 and-0. 205 was obtained. The equation for agricultural use was equal to Y = 5. 7426X-0. 205and for the pasture use equal to Y = 10. 653X-0. 233. In this equation, the power can be close but the coefficient of the equation is different. Gully erosion of the whole hinterland (farmland, agriculture) is expanding. The threshold of topography indicates a negative relationship between land area and slop in different kind of agricultural and rangeland. By reducing the slope, more area is needed for the development and expansion of the gully, and most of the gully is due to surface runoff.

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APA: Copy

RAHI, GHOLAMREZA, Kaviyan, Ataollah, SOLEIMANI, KARIM, & Pourghasemi, hamid. (2021). Effect of topographic threshold conditions for gully head development in different use (Case study: Boushehr province). JOURNAL OF RANGE AND WATERSHED MANAGEMENT (IRANIAN JOURNAL OF NATURAL RESOURCES), 74(1 ), 69-81. SID. https://sid.ir/paper/393583/en

Vancouver: Copy

RAHI GHOLAMREZA, Kaviyan Ataollah, SOLEIMANI KARIM, Pourghasemi hamid. Effect of topographic threshold conditions for gully head development in different use (Case study: Boushehr province). JOURNAL OF RANGE AND WATERSHED MANAGEMENT (IRANIAN JOURNAL OF NATURAL RESOURCES)[Internet]. 2021;74(1 ):69-81. Available from: https://sid.ir/paper/393583/en

IEEE: Copy

GHOLAMREZA RAHI, Ataollah Kaviyan, KARIM SOLEIMANI, and hamid Pourghasemi, “Effect of topographic threshold conditions for gully head development in different use (Case study: Boushehr province),” JOURNAL OF RANGE AND WATERSHED MANAGEMENT (IRANIAN JOURNAL OF NATURAL RESOURCES), vol. 74, no. 1 , pp. 69–81, 2021, [Online]. Available: https://sid.ir/paper/393583/en

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