How do you calculate RUSLE?

How do you calculate RUSLE?

RUSLE maintains the same empirically based equation as USLE to compute sheet and rill erosion as follows: A=RKLSCP where A is computed soil loss, R is the rainfall-runoff erosivity factor, K is a soil erodibility factor, L is the slope length factor, S is the slope steepness factor, C is a cover management factor, and …

What are the 6 RUSLE factors?

There are six factors parameter maps were considered in RUSLE; rainfall erosivity factor (R), soil erodibility (K), slope length and steepness (LS), cover management(C) and conservation practice (P).

What is P factor RUSLE?

P Factor. P is the support practice factor. The RUSLE P-factor reflects the impact of support practices an the average annual erosion rate. It is the ratio of soil loss with contouring and/or stripcropping to that with straight row farming up-and-down slope.

What is the difference between USLE and RUSLE?

RUSLE also captures better than USLE that long rains can saturate the soil, leading to reduced intake and greater erosional runoff. In contrast with USLE, RUSLE can handle converging and diverging terrain and considers areas with net sedimentation.

What is LS factor in RUSLE?

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.

Who developed RUSLE?

06c and RUSLE2 were developed and are maintained principally by the USDA-Agricultural Research Service (ARS), the USDA-Natural Resources Conservation Service (NRCS), and the University of Tennessee. RUSLE began development at the National Soil Erosion Research Laboratory in the early 1990’s.

What is RUSLE used for?

The Revised Universal Soil Loss Equation (RUSLE) is an easily and widely used computer program that estimates rates of soil erosion caused by rainfall and associated overland flow.

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.

Who developed Rusle?

Which among the following are mechanical method of soil conservation?

(2) terracing – it is a soil conservation practice applied to prevent rainfall runoff on sloping land from accumulating and causing serious erosion.

What is slope length?

Slope length is the distance from the origin of overland flow along its flow path to the location of either concentrated flow or deposition.

How is soil loss measured?

If the soil eroded from a field plot is collected in tanks and weighed, then even a coarse measurement of the weight gives a precise estimation of the soil loss. For example if the soil loss from a plot of 100 m² is measured to the nearest 0.1 kg, this corresponds to an estimate of soil loss to the nearest 10 kg/ha.

Who developed RUSLE model?

The empirical RUSLE model (Renard, Foster, Weesies, McCool, & Yoder, 1997) predicts annual soil loss (E; Mg ha−1 yr−1) by sheet and rill water erosion as the product of the factors of rainfall and runoff erosivity (R; MJ mm ha−1 h−1 yr−1), soil erodibility (K; Mg h MJ−1 mm−1), slope steepness and length (LS.

What are the 7 methods of soil conservation?

Soil conservation practices are tools the farmer can use to prevent soil degradation and build organic matter. These practices include: crop rotation, reduced tillage, mulching, cover cropping and cross-slope farming. farmers to increase soil organic matter content, soil structure and rooting depth.

What are 5 ways to conserve soil?

1. Grow your own. In your own back garden, on a windowsill or on a shared allotment, growing your own is the most environmentally-friendly way to get your food.
2. Compost.
3. Grow soil saving plants.
4. Support soil-friendly agroecological farming.
5. Speak out for soil.

What is a 20% slope?

Table of Common Slopes in Architecture

What is a 60% slope?

A 60 percent slope corresponds to a slope angle of 31°.

Which is the best method to measure soil erosion?

The most commonly used method for quantifYing soil erosion is the runoff plot (RP) method (McDonald et al. 2003) . R unoff-plot methods use artificial boundaries to define a plot area and direct runoff and eroded soil into a collector for soil erosion assessment.

Why is it important to measure soil loss?

Measurement of soil losses from area under controlled condition is necessary in order to precisely know about the influence of different land management practices on soil loss.

What are the 4 types of soil conservation?

These practices include: crop rotation, reduced tillage, mulching, cover cropping and cross-slope farming.

What are different types of soil?

Soil is classified into four types:

• Sandy soil.
• Silt Soil.
• Clay Soil.
• Loamy Soil.

What are the 10 methods of soil conservation?

Conservation Tillage. Conservation tillage consists of a variety of practices used in agriculture to reduce wind and water erosion.

What are the 4 methods of soil conservation?

What is a 100% slope?

o Degree of slope is measured in degrees from horizontal (0 – 90) ▪ A 45-degree slope is a 100 percent grade.

What is a 0.5% slope?

Slopes vs. gradients vs. % grades