Seasonal Balance of Carbon Dioxide Fluxes through the Naroch Lake Surface (Belarus) based on IR Spectroscopy and the method of Closed Chambers

摘要

This article presents the results of the assessment of carbon dioxide fl uxes through the Naroch lake surface during the vegetative season (May-September) of 2017, obtained by the method of closed chambers and IR spectroscopy. The results show that the average daily runoff values are 0.409 mg C/m(2) in the pelagic zone and 0.647 mg C/m(2) in the littoral zone. The carbon dioxide fl uxes balance indicates the runoff over emission prevalence. The total seasonal carbon runoff into the lake from the atmosphere is 128.6 t C, including 26.3 t C and 102.3 t C received through the surfaces of the littoral and pelagic zones, respectively.