Christensen T.R. (1993):
Methane emission from arctic tundra. Biogeochemistry 21(2): 117-139.
Description
A time series of 528 independent observations were made at 22 fixed sites during the summers of 1991 and 1992. From a thaw-season with approximately 55% of normal precipitation, a global tundra CH4 source of 18-30 Tg CH4 yr-1 is estimated. This is within the range of 42 ± 26 Tg CH4 yr-1 found in a similar sub-Arctic tundra environment. No single-parameter relationship between one environmental factor and CH4 flux covering all sites was found.
Case study for Climate Change / Wetlands in cold ecoregions:
| Parameter group | Indicator |
|---|---|
| Abiotic incidators | N-/C-flux, greenhouse gases emission |
