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 will last forever
( z1 last :ARG1 ( z2 net :mod ( z3 coir ) ) :ARG2 ( z4 forever ) )