Analysis of Biogeochemical Cycling Processes in Walker Branch Watershed

1. Front Matter

   Pages i-xviii

   PDF

2. Introduction

   • R. I. Van Hook

   Pages 1-5

3. Site Description

   • D. W. Johnson

   Pages 6-20

4. Forest Meteorology

   • B. A. Hutchison, D. D. Baldocchi

   Pages 21-95

5. Atmospheric Chemistry, Deposition, and Canopy Interactions

   • S. E. Lindberg, R. C. Harriss, W. A. Hoffman Jr., G. M. Lovett, R. R. Turner

   Pages 96-163

6. Water

   • R. J. Luxmoore, D. D. Huff

   Pages 164-196

7. Carbon Dynamics and Productivity

   • N. T. Edwards, D. W. Johnson, S. B. McLaughlin, W. F. Harris

   Pages 197-232

8. Terrestrial Nutrient Cycling

   • D. W. Johnson, G. S. Henderson

   Pages 233-300

9. Streams: Water Chemistry and Ecology

   • J. W. Elwood, R. R. Turner

   Pages 301-350

10. Modeling Chemical Transport, Uptake, and Effects in the Soil-Plant-Litter System

    • R. J. Luxmoore

    Pages 351-384

11. Implications of Walker Branch Watershed Research

    • R. I. Van Hook

    Pages 385-390

12. Back Matter

    Pages 391-401

    PDF

The Oak Ridge National Laboratory's Environmental Sciences Division initiated the Walker Branch Watershed Project on the Oak Ridge Reservation in east Tennessee in 1967, with the support of the U. S. Department of Energy's Office of Health and Environmental Research (DOE/OHER), to quantify land-water interactions in a forested landscape. It was designed to focus on three principal objectives: (1) to develop baseline data on unpolluted ecosystems, (2) to contribute to our knowledge of cycling and loss of chemical elements in natural ecosystems, and (3) to provide the understanding necessary for the construction of mathe­ matical simulation models for predicting the effects of man's activities on forested landscapes. In 1969, the International Biological Program's Eastern Deciduous Forest Biome Project was initiated, and Walker Branch Watershed was chosen as one of several sites for intensive research on nutrient cycling and biological productivity. This work was supported by the National Science Foundation (NSF). Over the next 4 years, intensive process-level research on primary productivity, decomposition, and belowground biological processes was coupled with ongoing DOE-supported work on the characterization of basic geology and hydrological cycles on the watershed. In 1974, the NSF's RANN Program (Research Applied to National Needs) began work on trace element cycling on Walker Branch Wa­ tershed because of the extensive data base being developed under both DOE and NSF support.

• Phosphor
• biomass
• ecology
• ecosystem
• environment
• forest
• hydrology
• nutrient cycling
• terrestrial nutrient cycling
• vegetation

• Division of Environmental Sciences, Oak Ridge National Laboratory, Oak Ridge, USA

  Dale W. Johnson, Robert I. Hook

Policies and ethics