The method of soil conservation in which stones, grass, soil are used to build barriers along contours and trenches are made in front of the barriers to collect water is called?

Mulching
Contour barriers
Rock dam
Terrace farming

LohaHridoy

4 views

2025-01-04 04:42

1 Answers

AhmedNazir

Option 2 : Contour barriers

Contour barriers are contour strips which intercept downslope flowing water and soil particles. These barriers slow down the water movement and reduce its erosive force. They also filter out and trap many of the suspended soil particles, keeping them from being washed out of the field. A long term advantage of barriers is that soil tends to build up behind them, creating a terrace effect. Barriers can be classified as live (strips of living plants), dead (rocks, crop residues), or mixed (a combination of the previous two).

4 views Answered 2022-09-04 04:29

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