Subject
- Slash (Logging)8
- Slash (Logging) -- Oregon5
- Douglas fir -- Biodegradation -- Oregon -- McDonald Forest2
- Logging -- Environmental aspects2
- Slash (Logging) -- Biodegradation -- Oregon -- McDonald Forest2
- Slash (Logging) -- Environmental aspects2
- Slash (Logging) -- Environmental aspects -- Oregon2
- Stream ecology2
- Stream ecology -- Oregon2
- Air -- Pollution -- Oregon -- Measurement1
- Biochemical oxygen demand -- Oregon -- Oak Creek1
- Biomass energy1
- Biomass energy -- Oregon1
- Biomass energy -- Washington (State)1
- Burning of land1
- Cedars1
- Coarse woody debris -- Coast Ranges1
- Coarse woody debris -- Drying -- Northwest, Pacific1
- Coarse woody debris -- Moisture -- Northwest, Pacific1
- Coarse woody debris -- Oregon1