**6. Conclusion**

224 Soil Erosion Studies

Fig. 11. Mean Sediment Concentrations of Bare Soil and Combination of Hydroseeding with

Time (mins) 0 10 20 30 40 50 Total Bare Soil 0 2457.47 2319 1452.91 955.81 563.95 7749.14

Coconet 0 143.77 47.54 23.35 9.47 5.72 229.85

Table 4. Mean Sediment Yield of Bare Soil and Combination of Hydroseeding with Coconet

The value projected in the Table 4 and Fig. 12 show that the mass of the bare soil with respect to the plot area and time is definitely greater than of the Hydroseeding with Coconet

Fig. 12. Mean Sediment Yield of Bare Soil and Combination of Hydroseeding with Coconet

Coconet Reinforcement

Hydroseeding with

Reinforcement

reinforcement.

Reinforcement

Mean Sediment Yield (g/m2h)

Results of actual laboratory experiments that were conducted with the use of the DPWH Artificial Rainfall Simulation Apparatus showed that the specimen of soil covered with combination of hydroseeding and coconet passed the surface run-off tests. The said specimens did not show any sign of failure in the measurement of run-off in the surface of the slope. Erosion problem was not encountered in the specimen of combined hydroseeding with coconet. The primary effect is that water is absorbed by the hydroseeding materials as well as by the coconet that were put in place to hold the soil and control soil erosion.
