In urban areas erosion controls are often part of stormwater runoff management programs required by local governments.
The controls often involve the creation of a physical barrier, such as vegetation or rock, to absorb some of the energy of the wind or water that is causing the erosion.
However, land management patterns that change the hydrograph and/or vegetation cover can act to increase or decrease channel migration rates.
Examples of erosion control methods include the following: Since the 1920s and 1930s[3] scientists have been creating mathematical models for understanding the mechanisms of soil erosion and resulting sediment surface runoff, including an early paper by Albert Einstein applying Baer's law.
[5] The more complex models were able to address nuances in micrometeorology, soil particle size distributions and micro-terrain variation.