Impacts of Forest Harvesting on Long-Term Site Productivity

1. Front Matter

   Pages i-x

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2. Reasons for Concern Over Impacts of Harvesting

   • D. W. Johnson

   Pages 1-12

3. Strategies for Determining Consequences of Harvesting and Associated Practices on Long-Term Productivity

   • W. J. Dyck, D. W. Cole

   Pages 13-40

4. Evidence for Long-Term Productivity Change as Provided by Field Trials

   • L. A. Morris, R. E. Miller

   Pages 41-80

5. Impacts of Harvesting and Associated Practices on Off-Site Environmental Quality

   • D. G. Neary, J. W. Hornbeck

   Pages 81-118

6. Identifying Key Processes Affecting Long-Term Site Productivity

   • J. P. Kimmins

   Pages 119-150

7. Computer Simulation Models and Expert Systems for Predicting Productivity Decline

   • M. F. Proe, H. M. Rauscher, J. Yarie

   Pages 151-186

8. Site Classification: Its Role in Predicting Forestland Responses to Management Practices

   • R. K. Jones

   Pages 187-218

9. Management Systems for Sustainable Productivity

   • P. N. Beets, T. A. Terry, J. Manz

   Pages 219-246

10. Designing Long-Term Site Productivity Experiments

    • R. F. Powers, D. J. Mead, J. A. Burger, M. W. Ritchie

    Pages 247-286

11. Review of Measurement Techniques in Site Productivity Studies

    • H. Van Miegroet, D. Zabowski, C. T. Smith, H. Lundkvist

    Pages 287-362

12. Impacts of Harvesting on Long-Term Site Quality: Future Research

    • N. B. Comerford, D. W. Cole, W. J. Dyck

    Pages 363-368

13. Back Matter

    Pages 369-371

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The International Energy Agency Bioenergy Agreement was initiated as the Forestry Energy Agreement in 1978. It was expanded in 1986 to form the Bioenergy Agreement. Since that time the Agreement has thrived with some fifteen countries (Austria, Belgium, Canada, Denmark, Finland, Italy, Japan, Netherlands, New Zealand, Norway, Sweden, Switzerland, United Kingdom, United States and the CEC) currently being signatories. The objective of the Agreement is to establish increased programme and project cooperation between the participants in the field of bioenergy. The environmental consequences of intensive forest harvesting have been the subject of intense interest for the Agreement from its initiation. This interest was formulated as a Cooperative Project under the Forestry Energy Agreement in 1984. It developed further under each of the subsequent three-year Tasks of the Bioenergy Agreement (Task III, Activity 3 "Nutritional consequences of intensive forest harvesting on site productivity", Task VI, Activity 6 "Environmental impacts of harvesting" and more recently Task IX, Activity 4 "Environmental impacts of intensive harvesting". The work has been supported by five main countries from within the Bioenergy Agreement: Canada, New Zealand, Sweden, UK, and USA. The continued work has resulted in a significant network of scientists work­ ing together towards a common objective - that of generating a better under­ standing of the processes involved in nutrient cycling and the development of management regimes which will maintain or enhance long term site productivity.

• classification
• computer simulation
• energy
• environment
• experiment
• forest
• information
• iron
• quality
• simulation
• synthesis
• ecotoxicology

• New Zealand Forest Research Institute, Rotorua, New Zealand

  W. J. Dyck

• College of Forest Resources, University of Washington, Seattle, USA

  D. W. Cole

• Department of Soil and Water Sciences, University of Florida, Gainesville, USA

  N. B. Comerford

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