How to stop erosion on a river bank<br>Use coir netting that's 700-900 grams per square meter (gsm). Coir netting is made from coconut fibers and is biodegradable. Normal or heavy duty netting should be used when there is a large amount of water flow.
coir netting is made from optic fibers
( z1 make :ARG1 ( z2 netting :mod ( z3 coir ) ) :ARG2 ( z4 fiber :mod ( z5 optics ) ) )