Deep drainage below the root zone is still the least understood component of the water balance, especially in cracking clay soils.

Theme: Salt, Nutrient, Sediment and Interactions Salt as a contaminant Nutrient as a contaminant Sediment as a contaminant Interactions between contaminants

This publication brings together the findings from the National River Contaminants Program and includes: * Understanding Salinity thresholds in freshwater biodiversity * Nutrients as contaminants * Managing algal bloo