Subject
- Forest health -- United States4
- Forest protection -- United States3
- Forest health -- Oregon2
- Trees -- Diseases and pests -- United States2
- Air -- Pollution -- Health aspects -- Oregon -- Bend1
- Atmospheric carbon dioxide -- Oregon -- H.J. Andrews Experimental Forest -- Measurement1
- Blister rust -- United States -- Management1
- Carbon sequestration -- Oregon -- H.J. Andrews Experimental Forest1
- Chamaebatia foliolosa -- Control1
- Deschutes National Forest (Or.)1
- Ecosystem health -- Oregon -- H.J. Andrews Experimental Forest1
- Forest ecology -- Oregon1
- Forest ecology -- Washington (State)1
- Forest health1
- Forest health -- California1
- Forest health -- Oregon -- Public opinion1
- Forest health -- Oregon -- Wallowa County -- Public opinion1
- Forest health -- Selkirk Range1
- Forest health -- Washington (State)1
- Forest health -- Washington (State) -- Public opinion1