Contents

• Contents
• Introduction
• The measurements
  • Measuring site
  • The profile system
    • Measuring system for the vertical profile of the CO mixing ratio
    • Temperature, humidity, wind and radiation measurements
    • Fluxes calculated by means of the similarity theory
  • The direct flux measuring system
    • Introduction
    • The monitoring system
    • Calibration
    • Data processing
    • Summary
  • The Japanese system
    • Equipment
    • Calibration
    • Data processing
    • Summary
• Results
  • Concentration profiles
  • The net ecosystem exchange
    • Theory
    • Application
  • Comparison of the calculated fluxes
  • Environmental forces
  • Seasonal and interannual variability of net ecosystem exchange
    • Net ecosystem exchange, gross primary production and total ecosystem respiration
    • Climatic responses
  • Error assessment
• Conclusions
• Bibliography