In 2003 a Nordic Centre of Excellence on Ecosystem
Carbon Exchange and Its Interactions with the Climate System, NECC, was
initiated. The center comprises practically all eddy covariance flux sites (ca.
25) in the Nordic countries which, represents wetlands, coniferous and deciduous
forests, ‘Kyoto’
forests, lakes, agricultural sites and one urban site. The forest sites cover a
range of age classes and management practices, and long-term sites with more
than 8-10 years of continuous flux data. The center has also access to a flux
aircraft for regional assessments and involves high precision CO2
and CH4 measurements in high towers. A synthesis of the current
sink/source strength of CO2 and CH4 of the different
ecosystems is in preparation and will be presented. Analysis of long-term data
from a few sites and how it relates to annual parameters is also presented.
Author: A. Lindroth (Anders dot Lindroth at nateko dot lu dot se)
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