Comparison of different erosion control techniques in the Hyrcanian forest in northern Iran

Ali Masumian, Ramin Naghdi, Eric K. Zenner, Mehrdad Nikooy and Majid Lotfalian
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Ali Masumian: Department of Forestry, Faculty of Natural Resources, University of Guilan (Campus 2), Rasht, Iran
Ramin Naghdi: Department of Forestry, Faculty of Natural Resources, University of Guilan, Sowmeh Sara, Iran
Eric K. Zenner: Department of Ecosystem Science and Management, College of Agricultural Sciences, The Pennsylvania State University, State College, USA
Mehrdad Nikooy: Department of Forestry, Faculty of Natural Resources, University of Guilan, Sowmeh Sara, Iran
Majid Lotfalian: Department of Forestry, Faculty of Natural Resources, Sari University of Agricultural Sciences and Natural Resources, Sari, Iran

Journal of Forest Science, 2017, vol. 63, issue 12, 549-554

Abstract: The aim of this study was to evaluate the effects of closure best management practices (BMPs) on runoff volume and soil loss on skid trails that received two densities of soil cover mats and were located on two slope gradients in an Iranian temperate mountainous forest. The treatments included combinations of three closure BMPs (water bar only, water bar + sawdust, and water bar + hardwood slash), two amounts (densities) of mats (7.5 and 15 kg.m-2), and two levels of slope gradients (≤ 20% and > 20%). Results showed that the water bar treatment was the least effective erosion control treatment, followed by the hardwood slash and sawdust treatments. Averaged over mat densities and both slope gradients, the average runoff rates and amounts of soil loss from the skid trails with the water bar treatment were 46.7 l per plot and 6.1 g.m-2, respectively, 16.8 l per plot, 2.8 g.m-2, respectively, with the hardwood slash treatment and 11.7 l per plot, 1.9 g.m-2, respectively, with the sawdust treatment. The results indicated that surface cover is a necessary element for controlling erosion losses following a skidding disturbance, particularly on steep slopes.

Keywords: best management practices; runoff; skid trail; soil loss; water bar (search for similar items in EconPapers)
Date: 2017
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Persistent link: https://EconPapers.repec.org/RePEc:caa:jnljfs:v:63:y:2017:i:12:id:121-2017-jfs

DOI: 10.17221/121/2017-JFS

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