[Measurement of CO2 concentration in the areas with vegetation cover on the Fildes peninsula, Antarctica].
The average CO2 concentration was above 473.5 mg.m-3 in the areas covered by moss or lichen, greatly higher than the global average CO2 concentration, implying that these areas may be one of the atmospheric CO2 sources. Abnormally high CO2 concentration was relative with vegetal physiological and ecological characters. In the areas covered by moss, the daily variation of the CO2 concentrations was affected by sunshine and temperature and it was also different under the conditions of the different weathers. Sunshine was the main factors influencing the CO2 concentration. The seasonal variation of the CO2 concentration was negatively correlated with atmospheric temperature and positively with rainfall and air relative humidity. This article first presents the variations of CO2 concentration and its influential factors under the Antarctic environmental conditions, which also presents new information for the further study to the Antarctic greenhouse gases.
Zhu
R
R
Institute of Polar Environment, University of Science and Technology of China, Hefei 230026, China.
Sun
L
L
Xie
Z
Z
Zhao
J
J
D000388:Air / Q000032:analysis*; D000864:Antarctic Regions; D019068:Bryopsida; D002245:Carbon Dioxide / Q000032:analysis*; D012621:Seasons; D014887:Weather
D002245:Carbon Dioxide