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.
800 gsm coir netting stops erosion.
800 gsm falls within the range listed in the text.
( z1 stop :ARG0 ( z2 net :mod ( z3 coir ) :quant ( z4 mass-quantity :quant 800 :unit ( z5 gram ) ) ) :ARG1 ( z6 erode ) )