Accurate estimations of the
land biotic O2/CO2 exchange ratios are required to allow
quantification of the land/ocean carbon sink partitioning from atmospheric
measurements of both O2 and CO2 concentrations.
This study shows atmospheric
O2 and CO2 mixing ratios as well as their diurnal cycles
over a three day period in May 2005 from flask samples collected at 3 different
heights (1, 4 and 12m) in an undisturbed
forest in central Germany. An average O2/CO2 ratio of
0.99 was estimated with very little variation between the three different
heights. In addition, the “night time” average value of atmospheric O2/CO2
ratio did not show any significant difference from the average “daytime” value.
Author: E. Kozlova, A.C. Manning, A. Jordan and W. Brand (ekozlova at bgc-jena dot mpg dot de)
Filesize: 40.34 Kb