Deep and Strong Root System: Vetiver possesses a massive root system that grows almost exclusively downwards, reaching depths of 2-4 meters within the first year. These roots act like "living soil nails," making it highly resistant to dislodgement by water flow.
Vegetative Barrier: When planted in close rows, vetiver forms a dense, hedge-like barrier above ground with stiff, erect stems. This barrier slows down surface water runoff allowing more time for infiltration into the soil.
Sediment Trapping: The dense stems effectively filter and trap sediment and debris carried by runoff water, preventing soil loss from the area.
Slope Stabilization: Due to its root system, vetiver is highly effective in stabilizing steep slopes, preventing landslides and soil slippage in areas prone to such events.
Water Conservation: By slowing down runoff and increasing infiltration, vetiver helps to conserve soil moisture, which is particularly beneficial in drought-prone regions.