Journal of Range and Watershed Managment

Analysis of Gully Morphometery in Relation with Physical and Chemical Characteristics of Soil in Kojur, Noushar, Mazandaran Province

Document Type : Research Paper

Authors

Mohammad Mahdi Hoseinzadeh 1
Reza Esmaili 2
Mohammad Hasan Jouri 3
Samaneh Pourkalhor 4

1 Associate pro. Faculty of Earth Science, Shahid Beheshti University, Tehran, I.R.IAN

2 Assistant Prof. Department of Geography, University of Mazandaran, Babolsar, I.R.IAN

3 Assistant Prof. Department of Natural Resource, Islamic Azad University, Nour branch, I.R.IAN

4 Expert of Soil Laboratory, Islamic Azad University, Chalos Branch, I.R.IAN

https://doi.org/10.22059/jrwm.2016.61731
Abstract
Gully erosion is one of the most destructive types of hydraulic erosion and an important process in
soil destruction that in some cases creates long, vast, deep canals. Study area was located in the
northeastern Alborz, Mazandaran province and Nowshar County (Firozkola subbasin a portion of
Kojur watershed). This paper examines gully morphometery in relation with physical and chemical
characteristics of soil. The morphometery of gullies such as width, depth and slope were determined
in field. Physical and chemical properties of soil such as exchange cation (EC), organic and
inorganic carbon, soil acidity and soil texture were determined in the laboratory. Data analyses were
performed by Detrended correspondence analysis (DCA). The DCA analysis indicated that the
width and slope are correlated with OC and clay negatively but they have positive correlation with
pH. Hence, it's expected that following reduction of OC and clay and an increase in PH, gully width
boosts. Besides, if EC increases and CaCO3 decreases, depth and w/d ratio of gully will increase.

Keywords

DCA analysis
Gully erosion
Morphometery
Kojur
Journal of Range and Watershed Managment
Volume 69, Issue 1
Spring 2016
Pages 27-38

  • Receive Date 17 September 2014
  • Revise Date 02 July 2016
  • Accept Date 13 July 2015
  • Publish Date 21 May 2016

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