Frost heave damages to artificial slopes along roadsides in a cold district with less snow depth. The influence of facing direction of slopes on both frost depth and frost heave damages.

Takeda, Kazuo; Tsuchiya, Fujio; Muneoka, Toshimi; Itoh, Takahiro

doi:10.7211/jjsrt.28.8

Cited by 2 publications

(1 citation statement)

References 2 publications

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“…Seed and mulch are susceptible to washing off of steep cutbanks during rain events or to dry ravel by gravity (Burroughs and King 1989;García-Fayos and Cerdà 1997). Cutbank soils and vegetation also are susceptible to frost heaving (Swift 1984;Burroughs and King 1989;Rowe 2001;Takeda et al 2002), making permanent root establishment difficult (Hursh 1949). Moist surfaces from intercepted subsurface flow also promote repeated slumping (Burroughs and King 1989), thereby retarding revegetation.…”

Section: Introductionmentioning

confidence: 99%

Using photographic image analysis to assess ground cover: a case study of forest road cutbanks

Bold¹,

Wood

Edwards

et al. 2009

Environ Monit Assess

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Road prisms, including cutbanks, road surfaces, and fillslopes, can be important contributors of sediment to streams in forested watersheds. Following road construction, cutbanks and fillslopes are often seeded, mulched, and sometimes fertilized to limit erosion and sedimentation. Assessing the success of vegetation establishment on cutbanks and fillslopes is a common task of forested land managers. This study developed and applied a photographic image analysis method to assess percent ground cover along an entire cutbank of a cut-and-fill haul road in the Monongahela National Forest in Tucker County, West Virginia. Variable-sized sections were employed to quantify the vegetative cover. Measurements obtained by this technique were similar to more commonly applied fixed-area plots, and it proved to be a useful tool for land managers who require a more repeatable quantification of ground cover than is possible through visual assessments. Cutbank slope and aspect also were analyzed to determine their potential impact on cutbank vegetation establishment. Slope was not a significant variable in explaining differences in vegetation cover; however, aspect did affect vegetation establishment. South-facing aspects had significantly lower percent vegetation cover than northeast, east, northwest, and north northwest aspects after the first year following seeding and throughout the entire study. Mean percent cover on the south-facing cutbanks was 32% over all time periods, compared to 60% to 73% for the other represented aspects. This result was expected since south-facing slopes generally are drier in the growing season and are subject to more freeze-thaw cycles in the winter. Timber felled onto the cutbank also decreased vegetative cover in the short term on north and north northwest aspects, but vegetation quickly became reestablished on these aspects with their favorable growing conditions.

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Section: Introductionmentioning

confidence: 99%

Using photographic image analysis to assess ground cover: a case study of forest road cutbanks

Bold¹,

Wood

Edwards

et al. 2009

Environ Monit Assess

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Shear characteristics on soil specimen including roots of <I>Festuca arundinacea</I> Schreb. and <I>Festuca longifolia</I> Thuill. with taking notice of the difference of slope directions

et al. 2017

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were conducted based on the soil dressing seed spraying Engineering. Water contents in soil specimens were different with the difference of slope directions, and this had influences both on cohesion, ｃ and on angle of shear resistance, φ. When the soil specimen included the roots of two exotic herbaceous plants, the ｃ values only increased. In addition, the ｃ value indicated a maximum at the flatland. The ｃ values of F. arundinacea were larger than that of F. longifolia with good growing condition. Not only the increment ⊿ｃ of ｃ value with the roots in soil specimens but also the value divided ｃ value by root length density were almost same with any slope direction in two plants.

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Frost heave damages to artificial slopes along roadsides in a cold district with less snow depth. The influence of facing direction of slopes on both frost depth and frost heave damages.

Cited by 2 publications

References 2 publications

Using photographic image analysis to assess ground cover: a case study of forest road cutbanks

Using photographic image analysis to assess ground cover: a case study of forest road cutbanks

Shear characteristics on soil specimen including roots of <I>Festuca arundinacea</I> Schreb. and <I>Festuca longifolia</I> Thuill. with taking notice of the difference of slope directions

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