'Soil erodibility factor' diaporamas de présentation

1.04k views • 66 slides

952 views • 66 slides

seamlessgs/

http://seamless.usgs.gov/. http://nhd.usgs.gov/. Terrain Preprocessing (Arc Hydro). Surface Analysis (Spatial Analyst). Terrain Analysis (TauDEM). Terrain Preprocessing (Arc Hydro). Problems. Fire Snowmelt Large Rainstorms.

647 views • 64 slides

Watershed Impact Assessment

Watershed Impact Assessment. Watershed Modeling Theory and Concepts. Chris McColl Center for Spatial Information RGIS USDA-CSREES. Modeling Components of N-SPECT. Runoff Modeling Curve Number Approach Sediment Erosion Modeling Universal Soil Loss Equation (USLE, RUSLE, MUSLE)

881 views • 44 slides

Native Grasses for Erosion Control

Native Grasses for Erosion Control. Nick Dudley - HARC and Dr. Joe DeFrank UH-Manoa. in Hawaiian Tree Farms. Hawaiian Grasses. Emoloa (Erogrostis variablis) Pili (Heteropogon contours). Site Prep at Poamoho. Site sprayed with 2% Roundup solution Overhead irrigation system installed

577 views • 41 slides

Soils & Hydrology II

Soils & Hydrology II. Soil Water Precipitation and Evaporation Infiltration, Streamflow, and Groundwater Hydrologic Statistics and Hydraulics Erosion and Sedimentation Soils for Environmental Quality and Waste Disposal Issues in Water Quality. Soil Erosion.

584 views • 39 slides

Nontimber Resource Measurements

Nontimber Resource Measurements. USFS manages lands for. Range Recreation Timber Watershed Wildlife and Fish. Non-timber uses of forests. Nursery plants Bulbs, transplants, etc. Arts, crafts, and floral harvesting Pine cones, vines, moss, mistletoe, limbs, etc.

449 views • 38 slides

Soil Erosion Estimation

553 views • 26 slides

Soil Erosion: Causes, Control & Estimation

Soil Erosion: Causes, Control & Estimation. AGME 1613 - Fundamentals of Agricultural Systems Technology. Photos courtesy of NRCS of USDA. Objectives. Describe the two causes of soil erosion Describe the types of soil erosion by water

509 views • 23 slides

Soil Erosion: Causes, Control & Estimation

Soil Erosion: Causes, Control & Estimation. AGME 1613 - Fundamentals of Agricultural Systems Technology. Photos courtesy of NRCS of USDA. Objectives. Describe the two causes of soil erosion Describe the types of soil erosion by water

411 views • 23 slides

Lab 13 - Predicting Discharge and Soil Erosion

Lab 13 - Predicting Discharge and Soil Erosion. Estimating Runoff Depth using the Curve Number method Land use or cover type Hydrologic condition Soil type Estimating Peak Runoff A function of the Time of Concentration, Tc The faster the runoff time => the bigger the peak

277 views • 13 slides

Estimating Soil Erosion From Water Using RUSLE

Estimating Soil Erosion From Water Using RUSLE. By: Andrea King USDA-Natural Resource Conservation Service. What is Soil Erosion?. Soil Erosion is the process of moving soil (by wind or water) from place of origin to another location. How do we estimate how much soil was eroded?.

447 views • 9 slides