How can biomass energy use improve water quality?

The use of biomass energy can improve water quality by the decrease in soil erosion and sedimentation. When we use energy from biomass, we certainly need biomass and we get most of this biomass from the wastes of crops therefore there is a need of planting more crops. By planting crops, soil erosion and sedimentation is decreased because plants hold the soil and prevent it from washing away with water.