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). DOI: 10.1029/2011GL047339 Sites: CA-DL1, CA-DL2
The oxygen isotope of water (18O-H2O) and carbon dioxide (18O-CO2) is an important signal of global change and can provide constraints on the coupled carbon-water cycle. Here, simultaneous observations of 18O-H2O (liquid and vapor phases) and 18O-CO2 …
Journal: Journal Of Geophysical Research: Biogeosciences, Volume 116 (G1): n/a-n/a (2011). DOI: 10.1029/2010JG001514 Sites: US-Ro1, US-Ro2, US-Ro3, US-Ro4
Seasonal dynamics of atmospheric carbonyl sulfide (OCS) at regional and continental scales and plant OCS exchange at the leaf level have shown a close relationship with those for CO2. CO2 has both sinks and sources within terrestrial ecosystems, but the primary terrestrial exchange for OCS is thought to be leaf …
Journal: Journal Of Geophysical Research: Biogeosciences, Volume 116 (G4): n/a-n/a (2011). DOI: 10.1029/2011jg001723 Sites: US-Wkg
Observations of carbon dioxide (CO2) flux with the eddy covariance technique were conducted at a burned boreal forest site five years after a wildfire and at a mature forest site in Interior Alaska to investigate the effects of wildfire on CO2 exchange in a boreal forest. Both gross primary productivity and ecosystem respiration …
Journal: SOLA, Volume 7: 105-108 (2011). DOI: Sites: US-Fcr, US-Rpf
The δ13C value of terrestrial CO2 fluxes (δbio) provides important information for inverse models of CO2 sources and sinks as well as for studies of vegetation physiology, C3 and C4 vegetation fluxes, and ecosystem carbon residence times. From 2002.2009, we measured atmospheric CO2 concentration and δ13C-CO2 at four heights (2 …
Journal: Tellus B: Chemical And Physical Meteorology, Volume 63 (2): 181-195 (2011). DOI: http://doi.org/10.1111/j.1600-0889.2010.00519.x Sites: US-ARM
Journal: Water Resources Research, Volume 47 (7): (2011). DOI: 10.1029/2010WR010030 Sites: US-Rwe
Journal: Nature, Volume 479 (7373): 384-387 (2011). DOI: 10.1038/nature10588 Sites: US-UMB
Journal: Journal Of Geophysical Research, Volume 116 (G4): (2011). DOI: 10.1029/2011JG001758 Sites: US-UMB, US-UMd
Journal: Agricultural And Forest Meteorology, Volume 151 (12): 1741-1752 (2011). DOI: 10.1016/j.agrformet.2011.07.008 Sites: US-UMB
Journal: Global Biogeochemical Cycles, Volume 25 (4): n/a-n/a (2011). DOI: 10.1029/2011GB004150 Sites: US-UMB