About Lesson
Erosion control measures for non-agricultural land
a) Contoured and staggered trench for hill slopes; Suitable erosion control in hills Adopted for hill slopes >20%.
b) Gully control:
- Gully erosion usually starts as small rills and then develops into deeper crevices or Ravines in extreme cases.
- It can be controlled by check dams which may be permanent, semi-permanent, or temporary.
- Temporary check dams are usually made up of brushwood, wire, and poles or loose rocks.
- Semi-permanent check dams can be earthen dams, Gabion structures, etc.
- Permanent check dams are concrete and masonry structures.
