| Popis: |
The current climate changes exert influence on these ecosystems by changing water supply, temperature regime, plant growing activity and others. Nowadays studies predicted the important role of the northern bogs and peatlands as an additional source of atmospheric CO2. The research area was located in the Krasnoyarsk region, Russia (60° 48’ N, 89° 22’ E) close to the International research station – ZOTTO (http://www.zottoproject.org). In our study we estimated how microrelief and microclimatic conditions can control the CO2 emission from the bog and forested areas. We compared also the waterlogged bog conditions and forest ecosystem to find out the main drivers of soil emission dynamics during the summer season. The rate of CO2 emission varies widely within the bog area depending on the microrelief of the area: hollow site – 0.74 ±0.03, ridge site – 1.69 ±0.08 kg CO2 m-2. Comparative analysis with the forest area showed that the upland parts of the bog area are not inferior to the forest area in terms of the CO2 emission rate. Moisture conditions determined the CO2 efflux for the hollow site (r=0.49, p2 emission rates. The research was funded by RFBR, Krasnoyarsk Territory and Krasnoyarsk Regional Fund of Science, project number 20-44-243003. |
