Modeling of sediment generation from forest roads employing SEDMODL and its calibration for Hyrcanian forests in northern Iran

Naghdi, Ramin; Dalir, Pejman; Gholami, Vahid; Pourghasemi, Hamid Reza

doi:10.1007/s12665-017-6758-7

Cited by 10 publications

(10 citation statements)

References 34 publications

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“…Previous studies have concluded that log erosion barriers, such as contour-felled logs, could be an effective solution to slow the velocity of surface runoff and trap the detached soil particles, if contour-felled logs were installed correctly and had an adequate sediment storage capacity (Wagenbrenner et al 2006, Yanosek et al 2006, Kim et al 2008, Robichaud et al 2008a, Naghdi et al 2017. Contour-felled logs provided the storage capacity for runoff and sediment especially in high rainfall intensity, which resulted in a greater concentration time and infiltration rate than the litter and straw mulch, which led to a significant reduction of the runoff and sediment yield (Robichaud et al 2008b).…”

Section: Contour-felled Logsmentioning

confidence: 99%

Effectiveness of Three Post-Harvest Rehabilitation Treatments for Runoff and Sediment Reduction on Skid Trails in the Hyrcanian Forests

Jourgholami

Ahmadi

Tavankar

et al. 2020

Croat. j. for. eng. (Online)

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Ground-based skidding operations can lead to soil compaction and displacement, which could cause negative effects on forest soil. Hence, some efforts such as forestry best management practices (BMPs) must be implemented in the prone area to mitigate these possible impacts. Several materials and treatments have been adopted to suppress these adverse effects by increasing the ground cover. However, the effects of mulch treatments on runoff and sediment yield are inconclusive with a diverse range of effectiveness. For these reasons, in this research mulch treatments were tested as to determine how the application of organic mulch amendments such as straw and leaf litter and contour-felled logs would alleviate the runoff and sediment yield on machine operating trails and ensure successful hillslope stabilization. The aims of the study were to analyse and compare the effectiveness of leaf litter (LM) and straw mulch (SM) rate and different distances of contour-felled logs (CFL) to mitigate the runoff and sediment yield, and examine the impact of rainfall intensity on effectiveness of litter mulch, straw mulch, and contour-felled logs. Totally, 30 bounded runoff plots in the machine operating trails and four treatments including litter mulch (LMR1: 0.62, LMR2: 1.24, and LMR3: 1.86 kg m-2), straw mulch (SMR1: 0.45, SMR2: 0.92, and SMR3: 1.34 kg m-2), contour-felled logs (CFL10: 10, CFL20: 20, and CFL30: 30 m), and untreated area were established in triplicate with 4 m width and 100 m length. During the study period, the runoff and sediment yield in the untreated trails (U) were 2.36 mm and 11.84 g m-2. Straw (from 41.5 to 60.6%) and litter mulch (from 38.1 to 55.1%), and contour-felled logs treatments (from 70.8 to 88.1%) significantly decreased the runoff, compared to U treatment. Results show that mulch treatments with three different levels of Litter Mulch Rate, LMR1, LMR2, and LMR3 decreased mean sediment by 46.6, 64.0 and 71.8%, in the treatments with three different levels of Straw Mulch Rate, SMR1, SMR2, and SMR3 decreased mean sediment by 42.9, 62.1, and 69.9%, and in the treatments with three different distances of Contour-Felled Logs, CFL10, CFL20, and CFL30 decreased mean sediment by 90.6, 94.7 and 88.3% comparing to U, respectively. The relationships of the runoff and sediment responses to increasing mulching rate of litter and straw followed as negative logarithmic curves, but the decreasing-increasing trends were observed in runoff and sediment yield as the distance between contour-felled logs increased from 10 to 30 m. Polynomial regression equations were developed for predicting the runoff and sediment yield as a function of the application rate of litter and straw mulch and the distance between contour-felled logs, and rainfall intensity. We concluded that contour-felled logs treatment was more effective than both litter and straw mulch to mitigate the runoff, runoff coefficient, and sediment yield on machine operating trails. As a management measure, it could be possible to propose that the contour-felled logs with a distance of 20 m be prescribed to protect the machine operating trails from the negative effects of surface waterflow.

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Section: Contour-felled Logsmentioning

confidence: 99%

Effectiveness of Three Post-Harvest Rehabilitation Treatments for Runoff and Sediment Reduction on Skid Trails in the Hyrcanian Forests

Jourgholami

Ahmadi

Tavankar

et al. 2020

Croat. j. for. eng. (Online)

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“…SEDMODL is a model commonly used for estimating soil erosion and sedimentation resulting from forest roads. This semi-empirical model predicts sediment delivery based on several factors, including road design, tra c, and environmental conditions (Naghdi et al 2017). The sedimentation resulting from forest roads is typically in uenced by three types of water ow on the road surface, soil excavation, and roadside ditches.…”

Section: Sedmodlmentioning

confidence: 99%

A hot-spot analysis of forest roads based on soil erosion and sediment in Zagros forest lands, Iran

Yousefi

Emami

Nekoeimehr

et al. 2023

Preprint

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Forest roads have been recognized as one of the significant contributors to soil erosion processes in forested areas. The construction and maintenance of forest roads can cause severe environmental impacts, including soil erosion, sedimentation, and degradation of aquatic ecosystems. In summary, this study contributes to our understanding of the impacts of forest road networks on soil erosion and sedimentation in the context of Zagros forest land, Iran. This study aims to assess soil erosion and sedimentation on forest roads in four case studies in Zagros forest lands, Iran. The study collected data using field surveys and SEDMODL equations to determine input factors and sedimentation and erosion rates. The study found that road erosion is strongly correlated with geological factor, road width, and precipitation factors. The height changes of 144 benchmarks were recorded during one study year (2021–2022) in four study roads, and the measurement results of erosion benchmarks indicated an average soil erosion of 3, 2.6, 4.7, and 3.5 mm per year around Bidleh, Kohian, Nazi, and Tabrak roads, respectively. The study measured soil erosion and sedimentation at three distances (5, 15, and 25 meters) from the road and found a significant difference in the height changes of the benchmarks at varying distances from the study roads. Hot-spot analysis was conducted using GIS 10.8, and the results indicated that a significant portion of the studied forest roads had very high erosion production and hot-spots. The results of Hot-spot analysis indicated that 30.8%, 22.6%, 39.8%, and 14.5% of the study forest roads in Nazi, Tabrak, Bidleh, and Kohian roads, respectively, are identified as areas with very high erosion production and hot-spots. These results highlight the need for effective management strategies to minimize the impact of erosion on road infrastructure and the surrounding environment. Overall, this study provides important insights into soil erosion and sedimentation on forest roads, and the findings presented here can be used to inform future road construction and maintenance.

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“…The soil is a vital resource for mankind and earth life, but unfortunately, this important resource is endangered due to pollution and erosion. Hence, we need information on erosion and sediment processes to support soil conservation practices (Pierson et al, 2007;Naghdi et al, 2017). However, soil erosion records are limited in the world because erosion and sediment measurements are expensive and timeconsuming.…”

Section: Introductionmentioning

confidence: 99%

“…On hillslopes, surface runoff and hence soil erosion are influenced by soil type, slope rate and vegetation type and cover (Sachs and Sarah, 2017). In particular, the soil type affects the erosion process (Yair and Lavee, 1974;Naghdi et al, 2017). The role of vegetation and slope is a controversial subject (Masson, 1971).…”

Section: Introductionmentioning

confidence: 99%

“…In addition, a geographic information system (GIS) is an efficient tool for mapping the soil erosion intensity and other erosion features (Martınez-Casasnovas, 1998;Zhao et al, 2009). Different studies were performed in estimation and mapping soil erosion and sediment, but most of them have different limitations such as a low accuracy or need to a high volume of data (Molla and Sisheber, 2017;Naghdi et al, 2017). However, some studies have investigated the problem of soil erosion using an ANN.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Spatial soil erosion estimation using an artificial neural network (ANN) and field plot data

Gholami

Booij

Tehrani³

et al. 2018

CATENA

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Modeling of sediment generation from forest roads employing SEDMODL and its calibration for Hyrcanian forests in northern Iran

Cited by 10 publications

References 34 publications

Effectiveness of Three Post-Harvest Rehabilitation Treatments for Runoff and Sediment Reduction on Skid Trails in the Hyrcanian Forests

Effectiveness of Three Post-Harvest Rehabilitation Treatments for Runoff and Sediment Reduction on Skid Trails in the Hyrcanian Forests

A hot-spot analysis of forest roads based on soil erosion and sediment in Zagros forest lands, Iran

Spatial soil erosion estimation using an artificial neural network (ANN) and field plot data

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