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• 1. [Article] Forest plant communities of the lower Cedar River watershed

  Citation × Citation Citation Abstract Copy Title: Forest plant communities of the lower Cedar River watershed Author: University of Washington, Scott, David R. M., Long, J., U.S. International Biological Program. Coniferous Forest Biome Title: Forest plant communities of the lower Cedar River watershed Author: University of Washington, Scott, David R. M., Long, J., U.S. International Biological Program. Coniferous Forest Biome Close

• 2. [Article] Aquatic production in a sockeye salmon river

  Citation × Citation Citation Abstract Copy Title: Aquatic production in a sockeye salmon river Author: U.S. International Biological Program. Coniferous Forest Biome, Malick, James G., Stober, Quentin J., University of Washington Title: Aquatic production in a sockeye salmon river Author: U.S. International Biological Program. Coniferous Forest Biome, Malick, James G., Stober, Quentin J., University of Washington Close

• 3. [Article] Degradation of organic compounds in freshwater sediments by bacteria

  Some missing pages, best copy available.

  Citation × Citation Citation Abstract Copy Title: Degradation of organic compounds in freshwater sediments by bacteria Author: University of Washington, Wekell, Marleen M., Matches, Jack Ronald, U.S. International Biological Program. Coniferous Forest Biome Some missing pages, best copy available. Title: Degradation of organic compounds in freshwater sediments by bacteria Author: University of Washington, Wekell, Marleen M., Matches, Jack Ronald, U.S. International Biological Program. Coniferous Forest Biome Some missing pages, best copy available. Close

• 4. [Article] Nutrient budgets in the lakes of the Cedar River Watershed

  Aquatic mineral measurements and sediment characterization of the Cedar River basin lakes and streams reveals two largely distinct physical and chemical environments. Near the headwaters of the Cedar River ...

  Citation × Citation Citation Abstract Copy Title: Nutrient budgets in the lakes of the Cedar River Watershed Author: Spyridakis, Dimitri E., U.S. International Biological Program. Coniferous Forest Biome, Welch, E. B. (Eugene B.), University of Washington Aquatic mineral measurements and sediment characterization of the Cedar River basin lakes and streams reveals two largely distinct physical and chemical environments. Near the headwaters of the Cedar River Watershed the composition of lakes and streams reflect adjacent rocks but the effects of forest and agricultural practices and of processes occurring downstream very quickly alter the composition to a type largely responsive to the urbanization in the lower reaches of the watershed. The relative ionic composition in the watershed is: Ca > Mg ≥ Na > K and HCO₃ > Cl ≥ S0₄. A 2- to 10-fold increase in concentration is measured with most chemical parameters when comparing upper watershed to lower watershed. The lowest increase is observed with total phosphorus reflecting perhaps identical phosphorus solubility control mechanisms. Annual nutrient budgets for Lake Sammamish suggest a reduction in sedimented phosphorus since diversion, but little change in the quantity of phosphorus released from anaerobic sediment. Although the sediment phosphorus supply during the summer and fall months is nearly three times higher than the external phosphorus supply its relative contribution to the trophogenic layer phosphorus is a function of lake mixing. An iron precipitation mechanism appears to control the mean winter phosphorus contents of Lake Sammamish. The prevailing anoxic conditions in the lake during late summer and fall bring about large increases in hypolimnetic iron concentrations which upon destratification precipitate phosphorus as an iron (111) hydroxy complex. Lake sediment characterization indicate differences between lakes with respect to carbon/nitrogen, nitrogen/phosphorus and particle size distribution reflecting drastic variations in the depositional environments and trophic status of the upper and lower watersheds. Higher carbon/nitrogen and nitrogen/phosphorus ratios and coarser sediments are measured in oligotrophic Findley Lake. With the exception of Findley Lake, all sediments appear to have the same composition with respect to Fe, Mn, Ca, Mg, Na, and K contents. Simulation of sediment phosphorus release at the sediment-water interface In enclosed in situ Lake Sammamish sediment-water columns appears to parallel the phosphorus release measured in the lake hypolimnion at the peak of the lake stagnation period. Preliminary studies indicate that it will be possible to relate the nutrient release results from the in situ columns to those of laboratory studies, arriving thus at a faster more economically obtained elucidation of the nutrient exchange mechanisms and potentials at lake sediment-water interface. Title: Nutrient budgets in the lakes of the Cedar River Watershed Author: Spyridakis, Dimitri E., U.S. International Biological Program. Coniferous Forest Biome, Welch, E. B. (Eugene B.), University of Washington Aquatic mineral measurements and sediment characterization of the Cedar River basin lakes and streams reveals two largely distinct physical and chemical environments. Near the headwaters of the Cedar River Watershed the composition of lakes and streams reflect adjacent rocks but the effects of forest and agricultural practices and of processes occurring downstream very quickly alter the composition to a type largely responsive to the urbanization in the lower reaches of the watershed. The relative ionic composition in the watershed is: Ca > Mg ≥ Na > K and HCO₃ > Cl ≥ S0₄. A 2- to 10-fold increase in concentration is measured with most chemical parameters when comparing upper watershed to lower watershed. The lowest increase is observed with total phosphorus reflecting perhaps identical phosphorus solubility control mechanisms. Annual nutrient budgets for Lake Sammamish suggest a reduction in sedimented phosphorus since diversion, but little change in the quantity of phosphorus released from anaerobic sediment. Although the sediment phosphorus supply during the summer and fall months is nearly three times higher than the external phosphorus supply its relative contribution to the trophogenic layer phosphorus is a function of lake mixing. An iron precipitation mechanism appears to control the mean winter phosphorus contents of Lake Sammamish. The prevailing anoxic conditions in the lake during late summer and fall bring about large increases in hypolimnetic iron concentrations which upon destratification precipitate phosphorus as an iron (111) hydroxy complex. Lake sediment characterization indicate differences between lakes with respect to carbon/nitrogen, nitrogen/phosphorus and particle size distribution reflecting drastic variations in the depositional environments and trophic status of the upper and lower watersheds. Higher carbon/nitrogen and nitrogen/phosphorus ratios and coarser sediments are measured in oligotrophic Findley Lake. With the exception of Findley Lake, all sediments appear to have the same composition with respect to Fe, Mn, Ca, Mg, Na, and K contents. Simulation of sediment phosphorus release at the sediment-water interface In enclosed in situ Lake Sammamish sediment-water columns appears to parallel the phosphorus release measured in the lake hypolimnion at the peak of the lake stagnation period. Preliminary studies indicate that it will be possible to relate the nutrient release results from the in situ columns to those of laboratory studies, arriving thus at a faster more economically obtained elucidation of the nutrient exchange mechanisms and potentials at lake sediment-water interface. Close

• 5. [Article] Methods employed in forest nutrient cycling studies at Cedar River

  Citation × Citation Citation Abstract Copy Title: Methods employed in forest nutrient cycling studies at Cedar River Author: U.S. International Biological Program. Coniferous Forest Biome, Cole, Dale W., Turner, John, Gessel, Stanley P., University of Washington Title: Methods employed in forest nutrient cycling studies at Cedar River Author: U.S. International Biological Program. Coniferous Forest Biome, Cole, Dale W., Turner, John, Gessel, Stanley P., University of Washington Close

• 6. [Article] Report on coordination project, Terrestrial Consumer Group

  Citation × Citation Citation Abstract Copy Title: Report on coordination project, Terrestrial Consumer Group Author: Taber, Richard D., U.S. International Biological Program. Coniferous Forest Biome, University of Washington Title: Report on coordination project, Terrestrial Consumer Group Author: Taber, Richard D., U.S. International Biological Program. Coniferous Forest Biome, University of Washington Close

• 7. [Article] Tree physiological process studies at the Allen E. Thompson research center : a 1972 progress report

  Citation × Citation Citation Abstract Copy Title: Tree physiological process studies at the Allen E. Thompson research center : a 1972 progress report Author: Walker, Richard B., U.S. International Biological Program. Coniferous Forest Biome, Scott, David R. M., Salo, David John, 1940-, Leverenz, J. W., University of Washington, Lassoie, J. P. Title: Tree physiological process studies at the Allen E. Thompson research center : a 1972 progress report Author: Walker, Richard B., U.S. International Biological Program. Coniferous Forest Biome, Scott, David R. M., Salo, David John, 1940-, Leverenz, J. W., University of Washington, Lassoie, J. P. Close

• 8. [Article] Zooplankton production and feeding in lakes of the Cedar River Watershed

  Citation × Citation Citation Abstract Copy Title: Zooplankton production and feeding in lakes of the Cedar River Watershed Author: Pederson, G. L., Litt, Arni, Welch, E. B. (Eugene B.), University of Washington, U.S. International Biological Program. Coniferous Forest Biome Title: Zooplankton production and feeding in lakes of the Cedar River Watershed Author: Pederson, G. L., Litt, Arni, Welch, E. B. (Eugene B.), University of Washington, U.S. International Biological Program. Coniferous Forest Biome Close

• 9. [Article] Estimates of biomass of detritus food chain

  Best copy available.

  Citation × Citation Citation Abstract Copy Title: Estimates of biomass of detritus food chain Author: U.S. International Biological Program. Coniferous Forest Biome, Taub, F. B. (Frieda B.), University of Washington, Bissonnette, Pam Best copy available. Title: Estimates of biomass of detritus food chain Author: U.S. International Biological Program. Coniferous Forest Biome, Taub, F. B. (Frieda B.), University of Washington, Bissonnette, Pam Best copy available. Close

• 10. [Article] Seasonal and diurnal patterns of water status in Acer circinatum

  Best copy available.

  Citation × Citation Citation Abstract Copy Title: Seasonal and diurnal patterns of water status in Acer circinatum Author: U.S. International Biological Program. Coniferous Forest Biome, Scott, David R. M., University of Washington, Lassoie, J. P. Best copy available. Title: Seasonal and diurnal patterns of water status in Acer circinatum Author: U.S. International Biological Program. Coniferous Forest Biome, Scott, David R. M., University of Washington, Lassoie, J. P. Best copy available. Close