Mulches

Base mulches are the foundational component of hydraulically applied erosion control systems, designed to stabilize soil, retain moisture, and support seed germination. These mulches are typically made from wood fiber, paper, or a blend of both, and are applied as a slurry using hydroseeding equipment. Once sprayed, they form a protective layer that adheres to the soil surface, reducing erosion from wind and water while creating a favorable microenvironment for vegetation. Wood-based mulches generally offer superior moisture retention and durability compared to paper-based options, making them ideal for steeper slopes and more demanding conditions. Paper mulches, while more economical, are best suited for flatter areas with lower erosion risk. The choice of mulch depends on site-specific factors such as slope gradient, soil type, and vegetation goals, and can be enhanced with tackifiers or additives to improve bonding and performance. Overall, base mulches serve as a cost-effective and efficient solution for short-term erosion control and long-term vegetation establishment.