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Evaluating the forest harvesting operations impact on sediment yield in forest watershed (Case study: Kheyrud forest)

    Authors

    • saeedeh joriz
    • Meghdad Jourgholami
    • arash malekian
    • maryam etehadi

    university of tehran

,

Document Type : Research Paper

10.22059/jrwm.2017.223835.1090
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Abstract

Land use changes can significantly affect the hydrology of a forest watershed. Ground cover is important to protect the soil against erosion. Timber harvesting has been changed the canopy cover and forest soil was exposed to the wind and water. Soil compaction and removing the forest floor in the skid trails was reduced the capacity of water absorption in mineral soils and thus reduced water infiltration, increased runoff, which caused to soil erosion. In order to measure the rate of sediments in two slopes and to study the effect of skid trails on the amount of sediments, the plot-level study was carried out in the Gorazbon district in Kheyrud forest in the control area and skid trail after skidding operations in the sample plot. The results showed that the most sediment value was 1.938 g. liter-1 in the skid trail with a 20-40 percent slope in the autumn and the lowest deposition was 0.103 g. liter-1 in the control area with a slope of 20-40 percent in the autumn. Type of Coverage (skid trail and control area), the season and the interactions between the cover and the season statistically have significant effect on the sediment yield, but the slope and the interactions between the slope and cover, as well as the interactions between the slope and season have no statistically significant effect on the sediment yield. Duncan’s test showed that there was a yield statistically significant difference between sediment yeild in different seasons and the autumn had the highest sediment

Keywords

  • Forest harvesting
  • Skidding
  • Sediment yield
  • Skid trail
  • Kheyrud forest
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Journal of Range and Watershed Managment
Volume 72, Issue 3
December 2019
Pages 665-681
Files
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  • PDF 1.27 M
History
  • Receive Date: 29 December 2016
  • Revise Date: 09 December 2019
  • Accept Date: 18 November 2017
  • First Publish Date: 22 November 2019
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How to cite
  • RIS
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  • Mendeley
  • BibTeX
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Statistics
  • Article View: 169
  • PDF Download: 101

APA

joriz, S., Jourgholami, M., malekian, A., & etehadi, M. (2019). Evaluating the forest harvesting operations impact on sediment yield in forest watershed (Case study: Kheyrud forest). Journal of Range and Watershed Managment, 72(3), 665-681. doi: 10.22059/jrwm.2017.223835.1090

MLA

saeedeh joriz; Meghdad Jourgholami; arash malekian; maryam etehadi. "Evaluating the forest harvesting operations impact on sediment yield in forest watershed (Case study: Kheyrud forest)". Journal of Range and Watershed Managment, 72, 3, 2019, 665-681. doi: 10.22059/jrwm.2017.223835.1090

HARVARD

joriz, S., Jourgholami, M., malekian, A., etehadi, M. (2019). 'Evaluating the forest harvesting operations impact on sediment yield in forest watershed (Case study: Kheyrud forest)', Journal of Range and Watershed Managment, 72(3), pp. 665-681. doi: 10.22059/jrwm.2017.223835.1090

VANCOUVER

joriz, S., Jourgholami, M., malekian, A., etehadi, M. Evaluating the forest harvesting operations impact on sediment yield in forest watershed (Case study: Kheyrud forest). Journal of Range and Watershed Managment, 2019; 72(3): 665-681. doi: 10.22059/jrwm.2017.223835.1090

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