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Overview
Basics
Basics
Develop a process-based tool that watershed managers in the Lake Tahoe basin can use to objectively evaluate the impact of specific management practices on the generation of fine (< 20 micron) sediment transport at the hillslope and watershed scales.
Completed
2007
2007
2011
$246,128
Pat Manley (pmanley@fs.fed.us)
10/03/2017
10/03/2017
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| Location Information | Location Notes |
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Organizations
EIP Details
EIP Basics
EIP Basics
04.01.01.0065 - P005: Assessing the Sources and Transport of Fine Sediment in Response to Management Practices in the LTB Using the WEPP model
Performance Measures
Expected Performance Measures
Expected Performance Measures
No expected performance measures set for this project.
Reported Performance Measures
Reported Performance Measures
No annual performance measure accomplishments entered for this project.
Funding
Expected Funding
Expected Funding
$246,128
$246,128
$0
| Total | |||
|---|---|---|---|
| Unknown or Unassigned | $246,128 | $246,128 | $0 |
| Grand Total | $246,128 | $246,128 | $0 |
Reported Expenditures
Reported Expenditures
| Total | 2011 | 2010 | 2009 | 2008 | 2007 | |
|---|---|---|---|---|---|---|
| Southern Nevada Public Land Management Act (Pacifi... | $246,128 | $49,226 | $49,226 | $49,225 | $49,226 | $49,225 |
| Grand Total | $246,128 | $49,226 | $49,226 | $49,225 | $49,226 | $49,225 |
Photos
Other Details
Watersheds
No watersheds set for this project.
Threshold Categories
-
Lake Tahoe is listed as impaired under Section 303(d) of the Clean Water Act for excessive nutrient and sediment loading.
Local and Regional Plans
No Local and Regional Plans set for this project.
Related Projects
Related Projects
No Related Projects set for this project.
External Links
No external links entered.
Notes
Notes
| 08/16/2017 5:40 AM | System | Lead Implementer: University of Idaho | ||
| 08/16/2017 5:39 AM | System | Objective: The goal of this round 7 SNPLMA project was to test and develop the Water Erosion Prediction Project (WEPP) as a watershed management tool for evaluating the impacts of specific management practices on the generation of fine (< 20 micron) sediment transport at the hillslope and watershed scales in the Lake Tahoe Basin. |
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| 08/16/2017 5:38 AM | System | Findings: • Close agreement between simulated and observed snow water equivalent, streamflow, and both fine (<20 micron) and coarse (>20 micron) sediment load was achieved at each of the major watersheds located in the high precipitation regions of the basin with minimal calibration. • Minimal sediment load was correctly simulated in the drier watersheds (i.e. Logan House and Glenbrook). However, annual streamflow was overpredicted. This overprediction was attributed to unique hydrogeology on the east side of the basin. |
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| 08/16/2017 5:38 AM | System | Management Implications: • A simple web-interface tool was developed and populated with the Tahoe-specific input files to allow end users to easily predict the impact of disturbances on fine sediment loading from single hillslopes. The input files were also modified to allow access to the Tahoe-specific input files in the WEPP-windows program. This free program, operating in the windows environment, provides experienced users greater flexibility for simulating impacts of management practices from complex hillslopes. • The project also provided Tahoe-specific soil and management input files for representing the impact of hillslope disturbances and subsequent restoration options on fine sediment loading. These input files were created using existing rainfall simulation data collected in the basin over the past 10 years. Major land cover treatments include: mature forest, thin or young forest, shrubs, good grass, poor grass, low-severity fire, high-severity fire, bare, mulch only, mulch and till, low-traffic road, high-traffic road, and skid trail. • A high priority was placed on developing user-friendly tools and providing training. A simple web-interface tool was developed and populated with the Tahoe-specific input files to allow end users to easily predict the impact of disturbances on fine sediment loading from single hillslopes. The input files were also modified to allow access to the Tahoe-specific input files in the WEPP-windows program. This free program, operating in the windows environment, provides experienced users greater flexibility for simulating impacts of management practices from complex hillslopes. For advanced users, algorithms were provided to simulate streamflow and fine sediment loading from large complex watersheds. |
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| 08/16/2017 5:37 AM | System | Publications: www.fs.fed.us/PSW/partnerships/tahoescience |