Download Soil Erosion - Project Proposal – 2009 | SOIL 205 and more Study Guides, Projects, Research Agricultural engineering in PDF only on Docsity! Soil 205 – The Soil Ecosystem Soil Erosion Project Spring 2009 The purpose of this project is to help you understand how various factors affect soil erosion by using the Water Erosion Prediction Project (WEPP) model. WEPP is a computer simulation that predicts field-scale erosion using climate, management, soil, and topographic parameters. Carefully follow the instructions given below to complete this project. Use the provided Report Sheet to record the results and answer questions. The Report Sheet can be accessed at: http://soils.ag.uidaho.edu/soil205/Projects/WEPPreportsheet.pdf The project report is due Friday, February 27th by 5 PM and will count 20 points towards the course grade. Reports turned in after this deadline will have 5 points deducted for each day the assignment is late. Project grades will be based on the accuracy of the results and the quality of answers presented on the Report Sheet. High-quality answers are accurate, informative, concise, grammatically correct, and neatly presented. For this project, you will be assigned a US state for use in running the WEPP model – you must use this state unless arrangements are made with the instructor. You will be using the WEPP web interface demonstrated in class: http://milford.nserl.purdue.edu/wepp/weppV1.html Click on Basic Hillslope Profile to begin. This will open a new window and you are ready to run the first simulation. Simulation 1. For this simulation, enter the following parameters: State: (enter your assigned state – this is assigned by the instructor in class and it is your responsibility to know which you have been assigned) Climate Station: (you can select any climate station for this simulation, but note which one you choose) Slope Length (ft): 300 Field Width (ft): 100 Slope Shape: Uniform Steepness: 10% Soil: (select a silty-textured soil (SiL or SiCL) from the list: C=clay; S=sand(y); Si=silt(y); L=loam(y)) Management: (select ‘fallow’) Simulation Years (1 to 30): 10 Click on Calculate Soil Loss – this runs the simulation model. Record or copy-and-paste the results (Average Annual Precipitation, Average Annual Runoff, Average Annual Sediment Loss, and Average Annual Sediment Yield) onto the Project Report sheet.
