Net ecosystem exchange of carbon dioxide and water of far eastern
Abstract. Observations of the net ecosystem exchange of water and CO2 were made during two seasons in 2000 and 2001 above a Larch forest in Far East Siberia (Yakutsk). The measurements were obtained by eddy correlation. There is a very sharply pronounced growing season of 100 days when the forest is...
| Main Author: | |
|---|---|
| Other Authors: | |
| Format: | Text |
| Language: | English |
| Published: |
2004
|
| Subjects: | |
| Online Access: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.391.2837 http://hal.archives-ouvertes.fr/docs/00/29/75/05/PDF/bg-1-133-2004.pdf |
| Summary: | Abstract. Observations of the net ecosystem exchange of water and CO2 were made during two seasons in 2000 and 2001 above a Larch forest in Far East Siberia (Yakutsk). The measurements were obtained by eddy correlation. There is a very sharply pronounced growing season of 100 days when the forest is leaved. Maximum half hourly uptake rates are 18 µmol m −2 s −1; maximum respiration rates are 5 µmol m −2 s −1. Net annual sequestration of carbon was estimated at 160 gCm −2 in 2001. Applying no correction for low friction velocities added 60 g C m −2. The net carbon exchange of the forest was extremely sensitive to small changes in weather that may switch the forest easily from a sink to a source, even in summer. June was the month with highest uptake in 2001. |
|---|