Publications

Filters: Sites: CA-DL2
Clear Filters
Publications Found: 3

Landscape-Scale Variability In Soil Organic Carbon Storage In The Central Canadian Arctic
Campeau, A. B., Lafleur, P. M., Humphreys, E. R.

Campeau, A. B., Lafleur, P. M. and Humphreys, E. R. 2014. Landscape-scale variability in soil organic carbon storage in the central Canadian Arctic. Can. J. Soil Sci. 94: 477–488. Arctic soils constitute a vast, but poorly quantified, pool of soil organic carbon (SOC). The uncertainty associated with pan-Arctic SOC …


Journal: Canadian Journal Of Soil Science, Volume 94 (4): 477-488 (2014), ISBN . DOI: 10.4141/cjss-2014-018 Sites: CA-DL1, CA-DL2

Does Earlier Snowmelt Lead To Greater CO2 Sequestration In Two Low Arctic Tundra Ecosystems?
Humphreys, E. R., Lafleur, P. M.

Some studies have reported that spring warming and earlier snowmelt leads to increased CO2sequestration in Arctic terrestrial ecosystems. We measured tundra-atmosphere CO2 exchange via eddy covariance at two low Arctic sites (mixed upland tundra and sedge fen) in central Canada over multiple snow-free periods …


Journal: Geophysical Research Letters, Volume 38 (9): n/a-n/a (2011), ISBN . DOI: 10.1029/2011GL047339 Sites: CA-DL1, CA-DL2

Carbon Dioxide And Methane Fluxes From Arctic Mudboils
Wilson, K. S., Humphreys, E. R.

Climate change is expected to alter the Arctic’s carbon (C) balance and changes in these C-rich ecosystems may contribute to a positive feedback on global climate change. Low-center mudboils, a form of patterned ground in the Arctic, are distinct landforms in which the exchange of greenhouse gases between the atmosphere and soil …


Journal: Canadian Journal Of Soil Science, Volume 90 (3): 441-449 (2010), ISBN . DOI: 10.4141/CJSS09073 Sites: CA-DL2