Suitability of Soil Erosion Models for the Evaluation of Bladed Skid Trail BMPs in the Southern Appalachians

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dc.contributor.authorVinson, Joseph Andrewen
dc.contributor.authorBarrett, Scott M.en
dc.contributor.authorAust, W. Michaelen
dc.contributor.authorBolding, M. Chaden
dc.contributor.departmentForest Resources and Environmental Conservationen
dc.date.accessioned2018-03-01T13:38:22Zen
dc.date.available2018-03-01T13:38:22Zen
dc.date.issued2017-12-06en
dc.date.updated2018-02-27T14:25:53Zen
dc.description.abstractThis project measured soil erosion rates from bladed skid trails in the mountains of Virginia following a timber harvest, and compared measured erosion to four erosion model predictions produced by Universal Soil Loss Equation—Forest (USLE-Forest), Revised Universal Soil Loss Equation, v.2 (RUSLE2), Water Erosion Prediction Project—Road (WEPP-Road) using default files, and WEPP-Road using modified files in order to assess the utility of the models for these conditions. Skid trails were segregated into six blocks where each block had similar trail slopes and soils. Each block contained four skid trail closure treatments: (1) bare soil (Control); (2) residual limbs and tops (Slash); (3) grass seed (Seed); and (4) fertilizer, seed, and straw mulch (Mulch). All treatments had waterbars, the minimum trail closure best management practice (BMP), to provide upslope and downslope borders of experimental units. Site cover characteristics on each experimental unit were collected quarterly as input parameters for erosion models. The suitability of soil erosion models were evaluated based upon statistical summaries, linear relationships with measured erosion rates, Nash-Sutcliffe Model Efficiency, and a nonparametric analysis. Treatments were measured to have erosion rates of 15.2 tonnes ha<sup>−1</sup> year<sup>−1</sup> (Control), 5.9 tonnes ha<sup>−1</sup> year<sup>−1</sup> (Seed), 1.1 tonnes ha<sup>−1</sup> year<sup>−1</sup> (Mulch), and 0.8 tonnes ha<sup>−1</sup> year<sup>−1</sup> (Slash). It was determined that WEPP-Road: Modified (<i>p</i>-value = 0.643) and USLE-Forest (<i>p</i>-value = 0.307) were the most suitable models given their accuracy; however USLE-Forest may be better for making management decisions given its practicality.en
dc.description.versionPublished versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.citationVinson, J.A.; Barrett, S.M.; Aust, W.M.; Bolding, M.C. Suitability of Soil Erosion Models for the Evaluation of Bladed Skid Trail BMPs in the Southern Appalachians. Forests 2017, 8, 482.en
dc.identifier.doihttps://doi.org/10.3390/f8120482en
dc.identifier.urihttp://hdl.handle.net/10919/82421en
dc.language.isoenen
dc.publisherMDPIen
dc.rightsCreative Commons Attribution 4.0 Internationalen
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en
dc.subjectbladed skid trailsen
dc.subjectforest operationsen
dc.subjectforest harvestingen
dc.subjectsoil erosion modelingen
dc.subjectbest management practicesen
dc.titleSuitability of Soil Erosion Models for the Evaluation of Bladed Skid Trail BMPs in the Southern Appalachiansen
dc.title.serialForestsen
dc.typeArticle - Refereeden
dc.type.dcmitypeTexten

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