Subject
- Nitrogen cycle -- Oregon -- H.J. Andrews Experimental Forest2
- Ammonia -- Oxidation1
- Archaebacteria -- Oregon -- Cascade Head1
- Archaebacteria -- Oregon -- H.J. Andrews Experimental Forest1
- Archaebacteria -- Oregon -- McDonald Forest1
- Carbon cycle (Biogeochemistry) -- Cascade Range1
- Carbon cycle (Biogeochemistry) -- Oregon1
- Extracellular enzymes1
- Forest litter -- Oregon -- H.J. Andrews Experimental Forest1
- Forest soils -- Carbon content -- Cascade Range1
- Forest soils -- Carbon content -- Oregon1
- Forest soils -- Oregon -- Cascade Head1
- Forest soils -- Oregon -- H.J. Andrews Experimental Forest1
- Forest soils -- Oregon -- McDonald Forest1
- Glucose1
- Grassland ecology -- Texas -- La Copita Research Area1
- Humus -- Oregon -- H.J. Andrews Experimental Forest1
- Invasive plants -- Texas -- La Copita Research Area1
- Nitrification1
- Nitrification -- Oregon -- Cascade Head1