Using WEPP Technology to Predict Erosion and Runoff Following Wildfire

Using WEPP Technology to Predict Erosion and Runoff Following Wildfire
Author: William J. Elliot
Publisher:
Total Pages: 12
Release: 2006
Genre:
ISBN:

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Erosion following wildfire can be as much as 1000 times the erosion from an undisturbed forest. In August, 2005, the largest fire in the lower 48 states occurred in the Umatilla National Forest in Southeast Washington. Researchers from the Rocky Mountain Research Station assisted the forest in estimating soil erosion using three different applications of the WEPP model. GeoWEPP was used to determine the onsite distribution of soil erosion. WEPP Windows Watershed Version was used to estimate peak runoff rates of each of the ten small watersheds analyzed. The ERMiT interface to WEPP was used to estimate the probability of erosion amounts on selected hillslopes, and the benefits of mulching those slopes. Within the three days available for analysis, about 38 percent of the burned area was analyzed. This paper summarizes the analytical methods, and the findings of the prediction runs.

Water Erosion Prediction Project (WEPP) Forest Applications

Water Erosion Prediction Project (WEPP) Forest Applications
Author: William J. Elliot
Publisher:
Total Pages: 0
Release: 1997
Genre: Forest soil
ISBN:

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The Water Erosion Prediction Project (WEPP) soil erosion model is a process based model to predict runoff, soil erosion, and sediment delivery. WEPP input files, described in this publication, predict soil erosion from forest roads, harvest areas, and burned areas. These files are part of a growing database.

Modeling Runoff and Sediment Yield from a Terraced Watershed Using WEPP

Modeling Runoff and Sediment Yield from a Terraced Watershed Using WEPP
Author: Mary Carla McCullough
Publisher:
Total Pages: 12
Release: 2008
Genre:
ISBN:

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The watershed version of WEPP (Water Erosion Prediction Project) was used to estimate 50-year runoff and sediment yields for a 291 ha watershed in eastern Nebraska that is 90% terraced and which has no historical gage data. The watershed has a complex matrix of elements, including terraced and non-terraced subwatersheds, multiple combinations of soils and land management, a grassed-waterway network, and natural stream channels leading to the outlet. The objectives of this study were to model the study watershed using WEPP and to evaluate model results compared to literature values. WEPP estimated the sediment yield to be 1.9 T/ha/yr, the sediment delivery ratio to be 0.22 and the percent of sediment contribution from the main channel to be 31% of the total sediment yield. These results are consistent with values reported in the literature.

Principles of Soil Conservation and Management

Principles of Soil Conservation and Management
Author: Humberto Blanco-Canqui
Publisher: Springer Science & Business Media
Total Pages: 617
Release: 2008-09-16
Genre: Nature
ISBN: 1402087098

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“Principles of Soil Management and Conservation” comprehensively reviews the state-of-knowledge on soil erosion and management. It discusses in detail soil conservation topics in relation to soil productivity, environment quality, and agronomic production. It addresses the implications of soil erosion with emphasis on global hotspots and synthesizes available from developed and developing countries. It also critically reviews information on no-till management, organic farming, crop residue management for industrial uses, conservation buffers (e.g., grass buffers, agroforestry systems), and the problem of hypoxia in the Gulf of Mexico and in other regions. This book uniquely addresses the global issues including carbon sequestration, net emissions of CO2, and erosion as a sink or source of C under different scenarios of soil management. It also deliberates the implications of the projected global warming on soil erosion and vice versa. The concern about global food security in relation to soil erosion and strategies for confronting the remaining problems in soil management and conservation are specifically addressed. This volume is suitable for both undergraduate and graduate students interested in understanding the principles of soil conservation and management. The book is also useful for practitioners, extension agents, soil conservationists, and policymakers as an important reference material.