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Planning Best Management Practices to Reduce Sediment Delivery from Forest Roads Using WEPP:Road Erosion Modeling and Simulated Annealing Optimization

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https://ir.library.oregonstate.edu/concern/articles/9c67wp59z

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Abstract
  • Planning and implementation of road BMPs on a watershed scale can be a difficult task because of the need to prioritize locations while accounting for multiple constraints, such as the available budget, continuous maintenance, and equipment scheduling. Using simulated annealing (SA) as its heuristic optimizer, BMP-SA accounts for sediment being delivered to the stream network through incorporation of modeled road erosion predictions and alternative BMP options and scheduling for problematic road segments. BMP-SA was applied to the Glenbrook Creek watershed in the Lake Tahoe Basin in Nevada, US. WEPP:Road predictions were used to identify road segments posing an erosion risk and appropriate BMPs were identified for problematic segments. Using BMP-SA, modeled road-related sediment leaving the forest buffer, thus entering streams, was minimized over the course of the planning horizon while considering budget constraints and equipment scheduling concerns. BMP-SA can be applied to any watershed but relies heavily on the perceived accuracy of road erosion predictions.
  • Keywords: Budget planning, Erosion modeling, Simulated annealing, BMPs, WEPP:Road, Forest roads, Road management
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  • Efta, J. A., & Chung, W. (2014). Planning Best Management Practices to Reduce Sediment Delivery from Forest Roads Using WEPP: Road Erosion Modeling and Simulated Annealing Optimization. Croatian Journal of Forest Engineering, 35(2), 167-178.
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  • 35
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  • 2
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  • This study was funded by theTahoe Science Program and administered by the USDAForest Service Pacific Southwest Research Station incooperation with the Rocky Mountain Research Station(Project No. P010) along with significant cost match andin-kind contribution from The University of Montana.
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