Filter cloth: synthetic textile with openings for water to escape, but which prevents passage of soil particles.

UNESCO: L O S S A R Y

Filter material: layer of fine gravel used in slope stabilization structures that allows water to escape and retains soil particles.

UNESCO: L O S S A R Y

It was movement of particles of soil, but it has high roughness that reduces the transport capacity of sediment of the runoff.

UNESCO: AQUATACAMA