The article provides a joint analysis of the aerosol chemical composition data on the content of inorganic components (chemical elements and ions) and hydrocarbons (n-alkanes) as part of an aerosol over Karakansky bor (a large forest with prevailing coniferous trees on the right bank of the southern part of the Novosibirsk reservoir) in aircraft sounding from 2011 to 2016. Correlation analysis showed the greatest connection with n-alkanes of three metals - copper, cobalt and aluminum, especially copper and cobalt, with 5-6 hydrocarbon homologues right away Sodium, potassium, calcium and barium correlate with 1-2 n-alkanes. Soil aluminum and silicon, and a number of other trace elements find a connection with 1-3 n-alkanes. The homologs that are often correlated with one metal are consistently in the same row, which may indicate a significant catalytic activity of this metal in the atmosphere.
Wetland CO2 and CH4 fluxes were observed at the Bakchar bog (N56°51’, E82°51’), West Siberia. Measurements were performed by two solar powered automated systems (Flux-NIES), each consisting of NDIR CO2 analyzer, an SnO2-based methane sensor, six static chambers installed along transects, the air drying and distribution units, and a data-logger. Observations were made during the May to October period in 2014 to 2018 at two types of open wetlands: mesotrophic open bog (E-site) and patterned wetland with forested ridges, flat hollows and water pool (O-site). Each chamber is automatically opened and closed with pneumatic actuator. Water level is measured in the wetland and surrounding forest locations. On the basis of the conducted research, the daily dynamics for CO2 and CH4 fluxes was revealed. Correlation analysis made it possible to describe the dependences for CO2 and CH4 fluxes on the local hydrometeorological conditions of the surface. For example, the high flood of bog’s waters had a decreasing effect on the methane genesis during the period of observation and seasonal variation of the CH4 emissions correlates well with the soil temperature at peat bed depth. Wetland CO2 and CH4 fluxes correlate spatially: higher net uptake CO2 and CH4 emissions are observed at wet mesotrophic locations with higher photosynthesis/respiration rates; lower net uptake CO2 and CH4 emissions were observed on oligotrophic patterned wetland. Another objective for investigation was the integration of carbon fluxes from aquatic systems into terrestrial ones, in order to quantify and better understand the catchment scale carbon budget.
The ecosystem-atmosphere exchange of methane and carbon dioxide were measured during the summer campaigns 2014 – 2017 in Plotnikovo (N56°51’, E82°51’) on the wetland Flux-NIES automatic chamber complexes. Eleven vegetative groups on the bog’s surface and one lake site were taken in comparison. The objective of these particular measurements was to estimate the growing season carbon fluxes at sedge fen and on hollow-ridges nearby lake at Siberia ecosystems. The carbon balance of these ecosystems deeply relies on the peat wetness. Another objective was the integration of carbon fluxes from aquatic systems into terrestrial ones, in order to quantify and better understand the catchment scale carbon budget.
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