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Keyword: soil erosion

Validation of the Unit Stream Power Erosion and Deposition (USPED) Model at Yakima Training Center, Washington

Publications Posted on: September 14, 2019
During the last seventy years, numerous models have been developed to predict soil erosion; some models also predict concomitant sediment deposition. All have been proven inadequate and/or inaccurate in one respect or another. This paper discusses the application of the new-generation Unit Stream Power Erosion and Deposition (USPED) model at the US Army’s Yakima Training Center (YTC), Washington.

From watersheds to the web: Online tools for modeling forest soil erosion

Pages Posted on: April 05, 2018
Forest erosion can lead to topsoil loss, and also to damaging deposits of sediment in aquatic ecosystems. For this reason, forest managers must be able to estimate the erosion potential of both planned management activities and catastrophic events, in order to decide where to use limited funds to focus erosion control efforts. To meet this need, scientists from RMRS (and collaborators) have spent over a decade developing a suite of online tools that can be used to predict erosion potential of forest alterations such as road building, forest management, and wildfire, as part of the Forest Service-Water Erosion Prediction Project (FS-WEPP). FS-WEPP is being continually refined, improved, and expanded upon to increase its usefulness, and to enable managers to run predictive watershed models for better land management decision-making and more desirable outcomes.

Impact of surface coal mining on soil hydraulic properties

Publications Posted on: January 06, 2017
Soil erosion is strongly related to soil hydraulic properties. Understanding how surface coal mining affects these properties is therefore important in developing effective management practices to control erosion during reclamation.

Development of online tools to support GIS watershed analyses

Publications Posted on: January 06, 2017
In 1996 there was a meeting in Tucson of hydrologists from every Forest Service region, as well as Forest Service research scientists engaged in watershed-related activities. This meeting was organized by the Stream Team (which has since been enveloped by the National Stream and Aquatic Ecology Center). The focus of the meeting was to identify tools that needed to be developed to support watershed management.

Ecohydrologic impacts of rangeland fire on runoff and erosion: A literature synthesis

Publications Posted on: August 16, 2016
Fire can dramatically influence rangeland hydrology and erosion by altering ecohydrologic relationships. This synthesis presents an ecohydrologic perspective on the effects of fire on rangeland runoff and erosion through a review of scientific literature spanning many decades.

Structural and functional connectivity as a driver of hillslope erosion following disturbance

Publications Posted on: June 24, 2016
Hydrologic response to rainfall on fragmented or burnt hillslopes is strongly influenced by the ensuing connectivity of runoff and erosion processes. Yet cross-scale process connectivity is seldom evaluated in field studies owing to scale limitations in experimental design.

Watershed-scale evaluation of the Water Erosion Prediction Project (WEPP) model in the Lake Tahoe basin

Publications Posted on: April 21, 2016
Forest managers need methods to evaluate the impacts of management at the watershed scale. The Water Erosion Prediction Project (WEPP) has the ability to model disturbed forested hillslopes, but has difficulty addressing some of the critical processes that are important at a watershed scale, including baseflow and water yield.

Sediment production from forest roads in western Oregon

Publications Posted on: January 12, 2016
Prevention and estimation of soil erosion from forest roads requires an understanding of how road design and maintenance affect sediment production. Seventy-four plots were installed on forest roads in the Oregon Coast Range to examine the relationship between sediment production and road attributes such as distance between culverts, road slope, soil texture, and cutslope height.

Minimizing post-fire erosion using rainwater harvesting practices

Publications Posted on: October 07, 2015
Though wildfires can lead to tremendous rates of soil erosion, they also have several beneficial effects on natural areas. Plants in ecosystems that are susceptible to wildfires often survive through adaptation processes that include physical protection against heat, increased growth after a wildfire event and production of flammable materials that stimulate fire and may diminish competition.

Demonstration and validation of the Unit Stream Power Erosion and Deposition (USPED) model

Projects Posted on: May 11, 2015
This project is designed to demonstrate and validate the Unit Stream Power Erosion and Deposition (USPED) model at five geographically and climatically divergent military bases.