Keyphrases
Net Ecosystem Exchange
100%
Carbon Sink
100%
Mature Forest
100%
Old-growth Forest
100%
Midwest USA
100%
Upper Midwest
100%
Old-growth
80%
Growth Sites
80%
Hardwood Forest
40%
Sink Strength
40%
CO 2
20%
Systematic Error
20%
Two-site
20%
Eddy Covariance Measurement
20%
Growing Season
20%
Creek
20%
Flux Tower
20%
Interannual Variability
20%
Hemlock
20%
Willow
20%
Wilderness
20%
Ottawa
20%
Eddy Flux Tower
20%
National Forests
20%
Earth and Planetary Sciences
United States of America
100%
Carbon Dioxide
100%
Net Ecosystem Exchange
100%
Carbon Sink
100%
Eddy Covariance
20%
Vegetation
20%
Growing Season
20%
Systematic Error
20%
Agricultural and Biological Sciences
Carbon Sink
100%
Old-Growth Forest
60%
Hardwood Forests
40%
Annuals
20%
Growing Season
20%
Europeans
20%
National Forests
20%
Eddy Covariance
20%
Conium
20%
Carbon Fixation
20%