Assessment of soil erodibility and aggregate stability for different parts of a forest road

Parsakhoo, Aidin; Lotfalian, Majid; Kavian, Ataollah; Hosseini, Seyed Ataollah

doi:10.1007/s11676-014-0445-2

Cited by 18 publications

(12 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Soil organic matter and clay content are the main cementing agents in the study area, so that topsoil removing during construction leads to a significant decrease in both properties at the surface (0-20 cm) and, consequently, to a decrease of aggregation and increased soil erodibility, as shown by Jordán-López et al (2009) and. In other cases, CaCO 3 content has been reported as a significant factor for reduction of soil erodibility (Parsakhoo et al, 2014).…”

Section: Effect Of Soil Properties On the Hydrological And Erosive Rementioning

confidence: 86%

“…WT: wheel tracks; CA: skid trail central areas between wheel tracks; FF: forest floor. contribute to delay runoff generation in adjacent areas of roads (Cerdà, 1998;Parsakhoo et al, 2014). Significant differences among runoff production from different parts of skid trails have been found.…”

Section: Runoff and Soil Loss From Skid Trailsmentioning

confidence: 99%

“…FF plots, in contrast, showed a sandy loam texture and higher aggregation. Reduced aggregate stability and increased soil erodibility (K factor) have been cited as key factors for soil erosion from forest roads (Parsakhoo et al, 2014).…”

Section: Effect Of Soil Properties On the Hydrological And Erosive Rementioning

confidence: 99%

See 2 more Smart Citations

Impact of different parts of skid trails on runoff and soil erosion in the Hyrcanian forest (northern Iran)

et al. 2016

Self Cite

View full text Add to dashboard Cite

Section: Effect Of Soil Properties On the Hydrological And Erosive Rementioning

confidence: 86%

Section: Runoff and Soil Loss From Skid Trailsmentioning

confidence: 99%

See 1 more Smart Citation

Impact of different parts of skid trails on runoff and soil erosion in the Hyrcanian forest (northern Iran)

et al. 2016

Self Cite

View full text Add to dashboard Cite

“…Two extreme cases of sweeping can be considered: sweeping-out (losing large-size particles, such as gravel, near tire tracks) and sweeping-in (receiving large-size particles near the shoulder). It is difficult to investigate traffic-induced processes directly, because they can be related to many factors, such as the physical properties of road aggregate (e.g., particle size and strength) [13,18,19], tire pressure [20,21], road conditions (e.g., moisture content and compaction) [11,15,22], road gradient [6,12,23], road type (mainline or secondary road) [6], traffic use [6,8,11], and proximity to the root systems of neighboring trees [24]. However, the particle-size distribution (PSD) of road aggregate can be used as a surrogate to infer the traffic-induced processes of crushing, subgrade mixing, and sweeping.…”

Section: Introductionmentioning

confidence: 99%

Traffic-Induced Changes and Processes in Forest Road Aggregate Particle-Size Distributions

Rhee

Fridley

Page‐Dumroese

2018

Forests

View full text Add to dashboard Cite

Traffic can alter forest road aggregate material in various ways, such as by crushing, mixing it with subgrade material, and sweeping large-size, loose particles (gravel) toward the outside of the road. Understanding the changes and physical processes of the aggregate is essential to mitigate sediment production from forest roads and reduce road maintenance efforts. We compared the particle-size distributions of forest road aggregate from the Clearwater National Forest in Idaho, USA in three vertical layers (upper, middle, and bottom of the road aggregate), three horizontal locations (tire track, shoulder, and halfway between them), and three traffic uses (none, light (no logging vehicles), and heavy (logging vehicles and equipment)) using Tukey's multiple comparison test. Light traffic appears to cause aggregate crushing where vehicle tires passed and caused sweeping on the road surface. Heavy traffic caused aggregate crushing at all vertical and horizontal locations, and subgrade mixing with the bottom layer at the shoulder location. Logging vehicles and heavy equipment with wide axles drove on the shoulder and exerted enough stress to cause subgrade mixing. These results can help identify the sediment source and define adequate mitigation measures to reduce sediment production from forest roads and reduce road maintenance efforts by providing information for best management practices.

show abstract

“…Traffic-induced processes that affect road aggregates are difficult to investigate directly because they can be affected by many factors, such as aggregate strength and particle size [17,20,21], tire pressure [22,23], road slope [9,16,24], road type [9], road conditions [14,19,24], traffic use [9,14,15], and nearby tree root systems [25]. Instead, Rhee et al [11] used the particle size distribution (PSD) of road aggregate to infer the traffic-induced processes.…”

Section: Introductionmentioning

confidence: 99%

An Approach for Modeling and Quantifying Traffic-Induced Processes and Changes in Forest Road Aggregate Particle-Size Distributions

Rhee

Fridley

Chung

et al. 2019

Forests

View full text Add to dashboard Cite

Forest road aggregate changes due to traffic. The physical processes that cause these aggregate changes need to be understood for more effective road management that can help reduce maintenance costs and efforts, and negative environmental impacts of forest roads. This study modeled three processes that could change the particle size distribution (PSD) of forest road aggregate: crushing (breaking down the surfacing material), subgrade mixing (moving upward of fine-grained, roadbed sediment), and sweeping (migration of loose aggregate particles to the shoulder and roadside by tire action). There are two types of sweeping: sweeping-out (dislodging large-size particles from tire tracks) and sweeping-in (accumulating large-size particles near the roadside and shoulder). Our study modeled the expected traffic-induced processes based on theoretical concepts and literature to examine how these processes change forest road aggregate PSD. Then the modeled results were compared with the observed PSDs from cross-sectional locations where traffic-induced processes likely occurred. Based on these comparisons, we enhanced the modeling and inferred how much the crushing, subgrade mixing, and sweeping-in processes changed the PSDs, but could not infer the sweeping-out process due to the difficulty in separating the sweeping-out from crushing. This study demonstrates that the traffic-induced processes could be modeled and quantified using the following assumptions: crushing was estimated by assuming a half logarithmic normal distribution with a mean of the crushed particle diameter and higher crushing rates for large-size particles; subgrade mixing was estimated by assuming the move-in of fine-grained subgrade soils from the road bed; and sweeping-in was estimated by assuming the move-in of large-size particles with a logarithmic normal distribution. Our modeling approach can offer insights on how traffic-induced processes affect road aggregate under various road and traffic conditions. This information can be useful in developing cost-effective road maintenance strategies and implementation plans.

show abstract

Assessment of soil erodibility and aggregate stability for different parts of a forest road

Cited by 18 publications

References 17 publications

Impact of different parts of skid trails on runoff and soil erosion in the Hyrcanian forest (northern Iran)

Impact of different parts of skid trails on runoff and soil erosion in the Hyrcanian forest (northern Iran)

Traffic-Induced Changes and Processes in Forest Road Aggregate Particle-Size Distributions

An Approach for Modeling and Quantifying Traffic-Induced Processes and Changes in Forest Road Aggregate Particle-Size Distributions

Contact Info

Product

Resources

About