Seasonal variability as a source of uncertainty in the West Siberian regional CH 4 flux upscaling
Bibliographic Data
| ID | 15550912 |
|---|---|
| Authors | А Ф Сабреков (0000-0002-6501-912X, National Research Tomsk State University, corresponding author), A F Sabrekov, Benjamin R K Runkle (0000-0002-2583-1199, Universität Hamburg), М В Глаголев (0000-0002-4327-1885, National Research Tomsk State University), M V Glagolev, И Е Клепцова (Yugra State University), I E Kleptsova, Shamil Maksyutov (0000-0002-1200-9577, National Institute for Environmental Studies), S S Maksyutov |
| Year | 2014 |
| Volume | 9 |
| Issue | 4 |
| Pages | 045008-045008 |
| Publication date | 2014-04-01 |
| Open Access | Yes |
| Type | ARTICLE |
| Venue | Environmental Research Letters (JOURNAL) |
| Journal identifiers | ISSN: 1748-9326 • E-ISSN: 1748-9326 |
| Publisher | IOP Publishing (PUBLISHER • GB) |
| DOI | 10.1088/1748-9326/9/4/045008 |
| OpenAlex | W2003144447 |
| Language | EN |
| Citations received | 5 |
| References cited | 37 |
This study compares seasonal and spatial variations in methane fluxes as sources of uncertainty in regional CH 4 flux upscaling from the wetlands of West Siberia. The study examined variability in summertime CH 4 emissions from boreal peatlands, with a focus on two subtaiga fen sites in the southern part of West Siberia (Novosibirskaya oblast). We measured CH 4 flux, water table depth, air and peat temperature, pH and electric conductivity of peat water during three field campaigns in summer 2011 (9)(10)(11)(12)(26)(27)(28). Fluxes were measured with static chambers at sites chosen to represent two of the most widespread types of wetlands for this climatic zone: soligenous poor fens and topogenous fens. In both sites the water table level acts as the primary control on fluxes. For the poor fen site with good drainage, water table controls CH 4 fluxes on the seasonal scale but not on a local spatial scale; for the fen site with weak drainage and microtopographic relief, the water table controls fluxes on the local spatial scale, but does not drive seasonal variations in the flux magnitude. This difference in hydrology shows the necessity of including detailed wetland type classification schemes into large-scale modeling efforts. From these three measurement periods, we estimated the relative seasonal variation in CH 4 emissions as 8% for the fen site and 26% for the poor fen site. These results were compared to estimates of other sources of uncertainty (such as interannual variation and spatial heterogeneity) to show that quantifying seasonal variability is less critical than these other variations for an improved estimate of regional CH 4 fluxes. This research demonstrates and ranks the challenges in upscaling measured wetland CH 4 fluxes across West Siberia and can guide future field campaigns
Atmospheric sciences · Boreal · Climatology · Drainage · Flux (metallurgy · Geography · Groundwater · Hydrology (agriculture · Peat · Physical geography · Seasonality · Spatial variability · Water table · Wetland · Atmospheric and Environmental Gas Dynamics · Climate change and permafrost · Environmental Science · Peatlands and Wetlands Ecology · Ecology · Geology
Warmer spring conditions increase annual methane emissions from a boreal peat landscape with sporadic permafrost
Minor contribution of small thaw ponds to the pools of carbon and methane in the inland waters of the permafrost-affected part of the Western Siberian Lowland
Hydrology controls thermokarst and alters carbon cycling and methane emissions in peatlands near the southern limit of permafrost
A process-based model of methane consumption by upland soils
Gross photosynthesis explains the ‘artificial bias’ of methane fluxes by static chamber (opaque versus transparent) at the hummocks in a boreal peatland
| Citations per year | 0.42 |
|---|---|
| Citation span | 2014 - 2025 (12) |
| Highly cited | No |