| description:
|
The vulnerability to surface runoff. Describes the potential for fine particulate matter, including microbes, aggregates of microbial matter, soil organic matter, phosphorus particles (either fertiliser materials or sediment particles with attached P), or fine sediment to be carried by surface runoff flow into surface water bodies. The rating is estimated from a combination of slope class, soil drainage, depth to an impermeable or a slowly permeable horizon, and permeability of soil above the impermeable or slowly permeable horizon. |