Diversion - A channel
constructed across the slope with a supporting ridge on the lower side
for the purpose of diverting excess water from one area for use or safe
disposal in other areas.
Critical Area Seeding.
Planting grass or other vegetation to protect a badly eroding area from
soil erosion.
Filter strip - A strip of
grass, trees or shrubs that filters runoff and removes contaminants
before they reach water bodies or water sources such as wells.