Variability of annual CO 2 exchange from Dutch Grasslands

International audience ; An intercomparison is made of the Net Ecosystem Exchange of CO 2 , NEE , for eight Dutch grassland sites; four natural grasslands, two production grasslands and two meteorological stations within a rotational grassland region. At all sites the NEE was determined during at least 10 months per site, using the eddy-covariance (EC) technique, but in different years. The photosynthesis-light response analysis technique is used along with the respiration-temperature response technique to partition NEE among Gross Primary Production ( GPP ) and Ecosystem Respiration ( R e ) a... Mehr ...