- Oregon State University. Extension Service51
- Oregon State University. Agricultural Experiment Station49
- Oregon State University. Forest Research Laboratory28
- Oregon State University. Malheur Experiment Station12
- U.S. International Biological Program. Coniferous Forest Biome12
- United States. Agricultural Research Service11
- Valde, Gary8
- Institute For Natural Resources6
- Columbia Basin Agricultural Research Center5
- Maguire, Douglas A.5
- Ruttle, Marilyn5
- Scharback, Ron5
- Christy, John A.4
- Cohen, Warren B.4
- E & S Environmental Chemistry, Inc.4
- Franklin, Jerry F.4
- Raymond, Richard B.4
- Sullivan, Timothy J.4
- University Of Washington4
- Beschta, Robert L.3