With regard to environmental impacts, analyses conducted using the Revised Universal Soil Loss Equation 2 (RUSLE2) and USEtox models indicated that sheet and rill erosion
were on average 28% lower in the LEI systems than in conventional system, and that over the last six years of the experiment, herbicide-related aquatic toxicity potential was more than 200-fold lower in the LEI systems than in the conventional system.
It greatly enhances and widens the RUSLE application potential by providing a more detailed prediction of sheet and rill erosion
drop size, intensity and kinetic energy); plot runoff frame size and installation; runoff sampling size, frequency and duration; the identification of plot cover, slope and surface soil conditions; the measurement of inter-rill erosion
, rill erosion
or combinations; plot replication or the degree to which plots represent hill slope conditions; and the interpretation of runoff sediment sampling relative to local soil, cover and climate conditions.
Regardless of changes in CN, and the coefficient of runoff, development of water erosion, especially surface erosion, rill erosion
, gully erosion and piping erosion were visible in the visit of the area, which can attribute their recent development to their increase amount of surface runoff and discharge, although this may be arise from climate changes, natural factors and other factors.
They used techniques that can tell them whether the sediment originated as channel and gully erosion, or as shallow sheet or rill erosion
further up hillslopes.
Sheet and rill erosion
on cropland has experienced significant decreases--a 57 percent drop on cultivated crops and a 43 percent drop on the non-cultivated crops.
Ephemeral gullies are common features on agricultural landscapes and can sometimes lead to soil losses that exceed losses from sheet or rill erosion
Such changes are inferred to represent the removal of woodland and the sheet-wash or rill erosion
of sub-surface mineral soil strata.
Accurate prediction of the seasonal patterns of rill erosion
requires accurate estimation of temporal variability in rill erodibility (Knapen et al.
was observed in the inter-row areas and crop rows upslope of the rainforest buffer.
Overall, sheet and rill erosion
have washed away up to 25 percent of U.
A series of lab studies conducted by Shainberg and ARS scientists on some small flumes confirmed that as little as 5 to 10 parts per million of PAM mixed with water almost eliminated rill erosion
- the tiny gullies caused by water moving over the soil.