How do you calculate LS factor?
The equations for calculating LS in the RUSLE are:(1) LS = L ⋅ S (2) L = λ / 22.13 m (3) m = β / 1 + β (4) β = sin θ / 3 ⋅ sin θ 0.8 + 0.56 (5) S = 10.8 ⋅ sin θ + 0.03 θ < 9 % S = 16.8 ⋅ sin θ − 0.5 θ ≥ 9 % where λ is the slope length (m), m is a variable length-slope exponent, β is a factor that varies with slope …
What is soil K factor?
The K Factor is an index which quantifies the relative susceptibility of the soil to sheet and rill erosion. • K Factor is used in the RUSLE2 soil loss prediction equation. Values range from 0.02 for the least erodible soils to 0.64 for the most erodible.
What is RUSLE model?
The Revised Universal Soil Loss Equation (RUSLE) is an empirical erosion model recognised as a standard method to calculate the average risk of erosion on arable land.
Where is USLE model used?
This erosion model was created for use in selected cropping and management systems, but is also applicable to non-agricultural conditions such as construction sites. The USLE can be used to compare soil losses from a particular field with a specific crop and management system to “tolerable soil loss” rates.
What is Rusle model?
What factors are used for Rusle?
RUSLE is an index method having factors that represent how climate, soil, topography, and land use affect rill and interrill soil erosion caused by raindrop impact and surface runoff.
What is slope length factor?
L is the slope length factor, representing the effect of slope length on erosion. It is the ratio of soil loss from the field slope length to that from a 72.6-foot (22.1-meter) length on the same soil type and gradient.
What is the K factor in Rusle?
K factor is soil erodibility factor which represents both susceptibility of soil to erosion and the rate of runoff, as measured under the standard unit plot condition. Soils high in clay have low K values, about 0.05 to 0.15, because they resistant to detachment.
What K factor means?
K Factor is a metric for app developers that reveals your app’s virality, by measuring how many additional users each of your existing users brings along to the app. The term K Factor actually comes from the world of medicine, where it’s used as a metric to measure how quickly a virus spreads.