CO2 EFFLUX MEASUREMENTS ON AQUATIC AND TERRESTRIAL ECOSYSTEMS IN THE CONTEXT OF CLIMATE CHANGE

Ecosystem-based approaches to climate change mitigation involves the use of ecosystems carbon storage and sequestration services. For this purpose, comprehensive CO2 efflux (R-eco) measurements of the wetland and terrestrial ecosystems were performed in the adjacent area of Bucharest, by applying two complementary methods using close chambers: dynamic by respiration chamber and static by injection kit. For the evaluation and comparison in time, the measurements were performed simultaneously with the two methods at relevant time intervals. The results of both practices have been inter-compared in the established plots. The aim of this paper is to highlight the values of R-eco measured on days when extreme temperatures and precipitations were recorded The data set from the selected days was statistically analyzed in comparison with the recorded measurements during the corresponding season. The results highlight the response of CO2 efflux in relation with daily meteorological parameters, for analyzing the ecosystems storage and carbon sequestration in the context of climate change. In addition, the analysis performed contributes to the uncertainty reduction for the independent use of the two methods as a monitoring tool for greenhouse gases exchanges between ecosystems and atmosphere.