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• 31. [Article] Acari, insecta and nematoda of watershed 10, H. J. Andrews experimental forest

  Populations of mites and.nematodes were monitored on Watershed 10, H. J. Andrews Forest. A minimum of 50 families and 60 genera of mites are present, the majority being Cryptostgmata. Population estimates ...

  Citation × Citation Citation Abstract Copy Title: Acari, insecta and nematoda of watershed 10, H. J. Andrews experimental forest Author: Jensen, Harold J. (Harold James), 1921-, Shimabukaro, R., U.S. International Biological Program. Coniferous Forest Biome, Krantz, G. W., Wernz, J. G., University of Washington Populations of mites and.nematodes were monitored on Watershed 10, H. J. Andrews Forest. A minimum of 50 families and 60 genera of mites are present, the majority being Cryptostgmata. Population estimates vary from 5000-350,000 per square meter. Nine categories of nematodes are present, most belonging to the saprozoic, dorylaimoid, aquatic and mononchoid groups Population estimates vary from 400,000-2,000,000 per square meter. Preliminary correlations of population vs. moisture (climate) are made. Title: Acari, insecta and nematoda of watershed 10, H. J. Andrews experimental forest Author: Jensen, Harold J. (Harold James), 1921-, Shimabukaro, R., U.S. International Biological Program. Coniferous Forest Biome, Krantz, G. W., Wernz, J. G., University of Washington Populations of mites and.nematodes were monitored on Watershed 10, H. J. Andrews Forest. A minimum of 50 families and 60 genera of mites are present, the majority being Cryptostgmata. Population estimates vary from 5000-350,000 per square meter. Nine categories of nematodes are present, most belonging to the saprozoic, dorylaimoid, aquatic and mononchoid groups Population estimates vary from 400,000-2,000,000 per square meter. Preliminary correlations of population vs. moisture (climate) are made. Close

• 32. [Article] Coniferous Forest Biome : progress report, July 1974 - August 1975

  The specific objectives of the program are: (1) To understand the relative behavior of terrestrial and aquatic ecosystems in various environments in the biome. (2) To develop conceptual and computer simulation ...

  Citation × Citation Citation Abstract Copy Title: Coniferous Forest Biome : progress report, July 1974 - August 1975 Author: Edmonds, Robert L., U.S. International Biological Program. Coniferous Forest Biome, University of Washington The specific objectives of the program are: (1) To understand the relative behavior of terrestrial and aquatic ecosystems in various environments in the biome. (2) To develop conceptual and computer simulation models that describe nutrient, carbon, and waterflows on a short-term basis (fewer than ten years) and which integrate research results and increase our understanding of coniferous forests and associated aquatic ecosystems. These models are being developed at the process, forest stand or water column, and watershed levels. (3) To develop conceptual and computer simulation models that describe the long-term behavior of coniferous forest ecosystems involving succession and erosion. (4) To understand the linkages between terrestrial and aquatic ecosystems. (5) To determine the effect of manipulations, such as clearcutting, fertilization, and defoliation on terrestrial and aquatic ecosystems. Title: Coniferous Forest Biome : progress report, July 1974 - August 1975 Author: Edmonds, Robert L., U.S. International Biological Program. Coniferous Forest Biome, University of Washington The specific objectives of the program are: (1) To understand the relative behavior of terrestrial and aquatic ecosystems in various environments in the biome. (2) To develop conceptual and computer simulation models that describe nutrient, carbon, and waterflows on a short-term basis (fewer than ten years) and which integrate research results and increase our understanding of coniferous forests and associated aquatic ecosystems. These models are being developed at the process, forest stand or water column, and watershed levels. (3) To develop conceptual and computer simulation models that describe the long-term behavior of coniferous forest ecosystems involving succession and erosion. (4) To understand the linkages between terrestrial and aquatic ecosystems. (5) To determine the effect of manipulations, such as clearcutting, fertilization, and defoliation on terrestrial and aquatic ecosystems. Close

• 33. [Article] Mineral cycling in Douglas-fir : intensive study progress report

  Intensive studies of the mineral cycling process in young-growth Douglas-fir stands have been in progress at the R. H. Thompson Research Center since 1966. During this time, a substantial body of information ...

  Citation × Citation Citation Abstract Copy Title: Mineral cycling in Douglas-fir : intensive study progress report Author: Grier, Charles Crocker, 1938-, U.S. International Biological Program. Coniferous Forest Biome, Cole, Dale W., University of Washington Intensive studies of the mineral cycling process in young-growth Douglas-fir stands have been in progress at the R. H. Thompson Research Center since 1966. During this time, a substantial body of information has been collected on the amounts, pathways, rates of transfer, and mechanisms that control transfer of elements in the mineral cycling process in this ecosystem. These studies have had two major objectives: (1) to provide information describing the changes in mineral cycling as the stand grows, and (2) to examine the year-to-year variation in the mineral cycling process. More recently, a third objective has been to examine the relation between climatic factors and the various mechanisms that control rates of transfer along the transfer pathways. Title: Mineral cycling in Douglas-fir : intensive study progress report Author: Grier, Charles Crocker, 1938-, U.S. International Biological Program. Coniferous Forest Biome, Cole, Dale W., University of Washington Intensive studies of the mineral cycling process in young-growth Douglas-fir stands have been in progress at the R. H. Thompson Research Center since 1966. During this time, a substantial body of information has been collected on the amounts, pathways, rates of transfer, and mechanisms that control transfer of elements in the mineral cycling process in this ecosystem. These studies have had two major objectives: (1) to provide information describing the changes in mineral cycling as the stand grows, and (2) to examine the year-to-year variation in the mineral cycling process. More recently, a third objective has been to examine the relation between climatic factors and the various mechanisms that control rates of transfer along the transfer pathways. Close

• 34. [Article] Eddy sizes above a forest canopy

  Sixteen propeller anemometers were placed 29 meters above a 45-year-old (approximately) Douglas-fir stand. Correlations between paired anemometers, when viewed as a function of distance between them, showed ...

  Citation × Citation Citation Abstract Copy Title: Eddy sizes above a forest canopy Author: U.S. International Biological Program. Coniferous Forest Biome, Fritschen, Leo, Farnum, Peter, University of Washington Sixteen propeller anemometers were placed 29 meters above a 45-year-old (approximately) Douglas-fir stand. Correlations between paired anemometers, when viewed as a function of distance between them, showed that eddies up to 5 meters in diameter were common, and indicated that larger eddies up to 9 meters across occur. Partial correlation coefficients between anemometers indicated that eddies are simply connected in cross section. Morning and nighttime data were excluded from analysis because the air was too calm. Results are related to the use of the eddy correlation method of determining atmospheric fluxes and the lack of preferential locations for updrafts or downdrafts above a tree crown. Title: Eddy sizes above a forest canopy Author: U.S. International Biological Program. Coniferous Forest Biome, Fritschen, Leo, Farnum, Peter, University of Washington Sixteen propeller anemometers were placed 29 meters above a 45-year-old (approximately) Douglas-fir stand. Correlations between paired anemometers, when viewed as a function of distance between them, showed that eddies up to 5 meters in diameter were common, and indicated that larger eddies up to 9 meters across occur. Partial correlation coefficients between anemometers indicated that eddies are simply connected in cross section. Morning and nighttime data were excluded from analysis because the air was too calm. Results are related to the use of the eddy correlation method of determining atmospheric fluxes and the lack of preferential locations for updrafts or downdrafts above a tree crown. Close

• 35. [Article] Diurnal dimensional fluctuations in Douglas-fir stems in response to plant internal moisture status and environment

  Best copy available.

  Citation × Citation Citation Abstract Copy Title: Diurnal dimensional fluctuations in Douglas-fir stems in response to plant internal moisture status and environment Author: U.S. International Biological Program. Coniferous Forest Biome, Scott, David R. M., University of Washington, Lassoie, J. P. Best copy available. Title: Diurnal dimensional fluctuations in Douglas-fir stems in response to plant internal moisture status and environment Author: U.S. International Biological Program. Coniferous Forest Biome, Scott, David R. M., University of Washington, Lassoie, J. P. Best copy available. Close

• 36. [Article] Nitrogen transformations

  The feasibility and enumeration studies have led to the following conclusions: The nitrogen fixation studies should be done in 1973, using acetylene reduction technique with some verification by N15. The ...

  Citation × Citation Citation Abstract Copy Title: Nitrogen transformations Author: U.S. International Biological Program. Coniferous Forest Biome, Palmer, Fred, Taub, F. B. (Frieda B.), University of Washington The feasibility and enumeration studies have led to the following conclusions: The nitrogen fixation studies should be done in 1973, using acetylene reduction technique with some verification by N15. The denitrification studies should be done with N15 technique. The decision to continue more enumeration sampling of nitrogen transforming bacteria should be based on comparisons of the 1972 enumerations with the chemical budget The pertinent literature is listed in the appendix of the report; the reprints are housed in Dr. Taub's office, 212 Fisheries Center, University of Washington. The enumeration data are presented in the report. Title: Nitrogen transformations Author: U.S. International Biological Program. Coniferous Forest Biome, Palmer, Fred, Taub, F. B. (Frieda B.), University of Washington The feasibility and enumeration studies have led to the following conclusions: The nitrogen fixation studies should be done in 1973, using acetylene reduction technique with some verification by N15. The denitrification studies should be done with N15 technique. The decision to continue more enumeration sampling of nitrogen transforming bacteria should be based on comparisons of the 1972 enumerations with the chemical budget The pertinent literature is listed in the appendix of the report; the reprints are housed in Dr. Taub's office, 212 Fisheries Center, University of Washington. The enumeration data are presented in the report. Close

• 37. [Article] Terrestrial vertebrate consumers of Cedar River intensive sites : parameters for modeling

  Citation × Citation Citation Abstract Copy Title: Terrestrial vertebrate consumers of Cedar River intensive sites : parameters for modeling Author: Taber, Richard D., Manuwal, David Allen, U.S. International Biological Program. Coniferous Forest Biome, Weisbrod, Richard, University of Washington, McCaughran, Donald A. Title: Terrestrial vertebrate consumers of Cedar River intensive sites : parameters for modeling Author: Taber, Richard D., Manuwal, David Allen, U.S. International Biological Program. Coniferous Forest Biome, Weisbrod, Richard, University of Washington, McCaughran, Donald A. Close

• 38. [Article] Nutrient retention, mobilization and loss in undisturbed forest ecosystems on experimental watersheds at the H. J. Andrews experimental forest - B18

  Citation × Citation Citation Abstract Copy Title: Nutrient retention, mobilization and loss in undisturbed forest ecosystems on experimental watersheds at the H. J. Andrews experimental forest - B18 Author: Fredriksen, R. L., U.S. International Biological Program. Coniferous Forest Biome, Moore, Duane G., University of Washington Title: Nutrient retention, mobilization and loss in undisturbed forest ecosystems on experimental watersheds at the H. J. Andrews experimental forest - B18 Author: Fredriksen, R. L., U.S. International Biological Program. Coniferous Forest Biome, Moore, Duane G., University of Washington Close

• 39. [Article] Climatological station operation at the Thompson Research Center on the Cedar River watershed

  Best copy available.

  Citation × Citation Citation Abstract Copy Title: Climatological station operation at the Thompson Research Center on the Cedar River watershed Author: University of Washington, Fritschen, Leo, U.S. International Biological Program. Coniferous Forest Biome Best copy available. Title: Climatological station operation at the Thompson Research Center on the Cedar River watershed Author: University of Washington, Fritschen, Leo, U.S. International Biological Program. Coniferous Forest Biome Best copy available. Close

• 40. [Article] Movement of water through forested soils in steep topography

  Field and laboratory studies are being conducted to describe the hydrologic properties of soil and to determine the timing pathway of precipitation and snowmelt water as it moved through forested soil ...

  Citation × Citation Citation Abstract Copy Title: Movement of water through forested soils in steep topography Author: U.S. International Biological Program. Coniferous Forest Biome, Harr, R. Dennis (Robert Dennis), 1941-, Ranken, Darren W., University of Washington Field and laboratory studies are being conducted to describe the hydrologic properties of soil and to determine the timing pathway of precipitation and snowmelt water as it moved through forested soil on a steep slope. Hydrologic properties include hydraulic conductivity, porosity, pore-size distribution, moisture characteristics, stone content, and soil depth. Laboratory analyses indicated an abrupt change in hydrologic properties within the top 1.5 m of soil. Water input and movement through the soil are being monitored during winter storm events. Title: Movement of water through forested soils in steep topography Author: U.S. International Biological Program. Coniferous Forest Biome, Harr, R. Dennis (Robert Dennis), 1941-, Ranken, Darren W., University of Washington Field and laboratory studies are being conducted to describe the hydrologic properties of soil and to determine the timing pathway of precipitation and snowmelt water as it moved through forested soil on a steep slope. Hydrologic properties include hydraulic conductivity, porosity, pore-size distribution, moisture characteristics, stone content, and soil depth. Laboratory analyses indicated an abrupt change in hydrologic properties within the top 1.5 m of soil. Water input and movement through the soil are being monitored during winter storm events. Close