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https://doi.org/10.5552/crojfe.2020.680

Effects of Soil Conservation Practices on Sediment Yield from Forest Road Ditches in Northern Iran

Rasoul Khandouzi ; Gorgan University of Agricultural Sciences and Natural Resources Faculty of Forest Science Department of Forestry Gorgan IRAN
Aidin Parsakhoo ; Gorgan University of Agricultural Sciences and Natural Resources Faculty of Forest Science Department of Forestry Gorgan IRAN
Vahedberdi Sheikh ; Gorgan University of Agricultural Sciences and Natural Resources Faculty of Rangeland and Watershed
Aliakbar Mohamadali Pourmalekshah ; Gorgan University of Agricultural Sciences and Natural Resources Faculty of Rangeland and Watershed

Puni tekst: engleski, pdf (2 MB) str. 1-10 preuzimanja: 74* citiraj
APA 6th Edition
Khandouzi, R., Parsakhoo, A., Sheikh, V. i Pourmalekshah, A.M. (2020). Effects of Soil Conservation Practices on Sediment Yield from Forest Road Ditches in Northern Iran. Croatian Journal of Forest Engineering, 41 (2), 1-10. https://doi.org/10.5552/crojfe.2020.680
MLA 8th Edition
Khandouzi, Rasoul, et al. "Effects of Soil Conservation Practices on Sediment Yield from Forest Road Ditches in Northern Iran." Croatian Journal of Forest Engineering, vol. 41, br. 2, 2020, str. 1-10. https://doi.org/10.5552/crojfe.2020.680. Citirano 26.01.2021.
Chicago 17th Edition
Khandouzi, Rasoul, Aidin Parsakhoo, Vahedberdi Sheikh i Aliakbar Mohamadali Pourmalekshah. "Effects of Soil Conservation Practices on Sediment Yield from Forest Road Ditches in Northern Iran." Croatian Journal of Forest Engineering 41, br. 2 (2020): 1-10. https://doi.org/10.5552/crojfe.2020.680
Harvard
Khandouzi, R., et al. (2020). 'Effects of Soil Conservation Practices on Sediment Yield from Forest Road Ditches in Northern Iran', Croatian Journal of Forest Engineering, 41(2), str. 1-10. https://doi.org/10.5552/crojfe.2020.680
Vancouver
Khandouzi R, Parsakhoo A, Sheikh V, Pourmalekshah AM. Effects of Soil Conservation Practices on Sediment Yield from Forest Road Ditches in Northern Iran. Croatian Journal of Forest Engineering [Internet]. 2020 [pristupljeno 26.01.2021.];41(2):1-10. https://doi.org/10.5552/crojfe.2020.680
IEEE
R. Khandouzi, A. Parsakhoo, V. Sheikh i A.M. Pourmalekshah, "Effects of Soil Conservation Practices on Sediment Yield from Forest Road Ditches in Northern Iran", Croatian Journal of Forest Engineering, vol.41, br. 2, str. 1-10, 2020. [Online]. https://doi.org/10.5552/crojfe.2020.680

Sažetak
The fine-textured soil in forest road ditches is very susceptible to water erosion especially in rainy seasons in Hyrcanian forest. This study examined the yield of ditch segment-scale sediment after releasing two flow rates of 5 l s-1 and 10 l s-1 in segments treated by riprap (RR), grass cover by Festuca arundinacea L. (GC), compacted cotton geotextile (CG) and wooden wattle by local slash (WW). Sediment sampling from the runoff was carried out at the end of each segment every minute. Runoff flow velocity in different treatments was measured using an electromagnetic flow meter. Sediment concentration and runoff velocity in treatments of RR, GC, CG, WW was significantly lower than that of the control plot (Ctl). Increasing flow rate from 5 l s-1 to 10 l s-1 caused no significant change in sediment concentration (except for Ctl and RR) and runoff velocity (except for Ctl and CG), which means that some water might have penetrated into treated soil by RR, GC and WW and this is not acceptable in forest road maintenance practices. Sediment yield from RR (0.36 g l-1) and Ctl (0.50 g l-1) under the flow rate of 10 l s-1 was significantly higher than that of 5 l s-1 with values of 0.21 g l-1 and 0.38 g l-1, respectively. Minimum amount of sediment concentration was observed for CG (0.20 g l-1) with compacted ditch bed. Moreover, runoff velocity in CG and Ctl under the flow rate of 10 l s-1 was significantly higher than that of 5 l s-1. For a forest road with dimension 30×50 cm, slope of 5%, and clay soil with porosity of 57%, treatments of compacted CG can be used in ditch with low flow rates (5 l s-1) and high flow rate (10 l s-1) because of their high efficiency in reducing sediment yield.

Ključne riječi
conservation treatments, cotton geotextile, flow simulation, sediment concentration, water erosion

Hrčak ID: 240273

URI
https://hrcak.srce.hr/240273

Posjeta: 148 *