Funded Research Projects: FOREST SOILS

Mountains to Sound Greenway biosolids program

Research Sponsored By: King County Wastewater Treatment Division
Principal Investigator: Sally Brown
Project Description
Project goal is to continue assisting the King County, WA Wastewater Treatment Divsion in determining appropriate biosolids application rates, in terms of benefits and safety, for commercial forest plantations. Biosolids application rate are based on factors including soil nitrate concentrations. Project focus will be to measure variability in soil nitrate concentrations across application units, carried out by soil sampling in pits as well as across transects in three forest units. Results will be presented to the Divsion and stakeholders as required.