3D geonet mats for rockfall slope protection

 1.  Protect land surface from the erosion of rain and wind before turf grows up.
   2. It can make the grass seeds uniformly dispersed over sloping surface solidly against wind and rain.
   3. Black net patch can absorb heat energy greatly, increase earth moisture, promote seed pullulating and prolong      vegetative period
   4. Its rough surface can make wind and water produce incalculable vortices on the net patch surface so as to play the damping effect and urge the carrier deposit in net patch.
   5. The compound protective layer formed after plant growth can undergo high water level and large current velocity erosion (3-4m/s for 2 days, 5-6m/s for 4-5 hours).