Publications

Publications Found: 1437

Interannual Variability In The Peatland-Atmosphere Carbon Dioxide Exchange At An Ombrotrophic Bog
Lafleur, P. M., Roulet, N. T., Bubier, J. L., Frolking, S., Moore, T. R.

Eddy covariance measurements of net ecosystem carbon dioxide (CO2) exchange (NEE) were taken at an ombrotrophic bog near Ottawa, Canada from 1 June 1998 to 31 May 2002. Temperatures during this period were above normal except for 2000 and precipitation was near normal in 1998 and 1999, above normal in 2000, and well below …


Journal: Global Biogeochemical Cycles, Volume 17 (2): n/a-n/a (2003). DOI: 10.1029/2002gb001983 Sites: CA-Mer

Modelling Carbon Balances Of Coastal Arctic Tundra Under Changing Climate
Grant, R. F., Oechel, W. C., Ping, C.

Rising air temperatures are believed to be hastening heterotrophic respiration (Rh) in arctic tundra ecosystems, which could lead to substantial losses of soil carbon …


Journal: Global Change Biology, Volume 9 (1): 16-36 (2003). DOI: 10.1046/j.1365-2486.2003.00549.x Sites: US-Brw

Inter-annual carbon dioxide uptake of a wet sedge tundra ecosystem in the Arctic
Harazono Y, Mano M, Miyata A, Zulueta RC, Oechel WC


Journal: Tellus, Volume 55B: 215-231 (2003). DOI: Sites: US-Cms

Modeling Temporal And Large-Scale Spatial Variability Of Soil Respiration From Soil Water Availability, Temperature And Vegetation Productivity Indices
Reichstein, M., Rey, A., Freibauer, A., Tenhunen, J., Valentini, R., Banza, J., Casals, P., Cheng, Y., Grünzweig, J. M., Irvine, J., Joffre, R., Law, B. E., Loustau, D., Miglietta, F., Oechel, W., Ourcival, J., Pereira, J. S., Peressotti, A., Ponti, F., Qi, Y., Rambal, S., Rayment, M., Romanya, J., Rossi, F., Tedeschi, V., Tirone, G., Xu, M., Yakir, D.

Field-chamber measurements of soil respiration from 17 different forest and shrubland sites in Europe and North America were summarized and analyzed with the goal to develop a model describing seasonal, interannual and spatial variability of soil respiration as affected by water availability, temperature, and site properties. The …


Journal: Global Biogeochemical Cycles, Volume 17 (4): n/a-n/a (2003). DOI: 10.1029/2003gb002035 Sites: US-Blo, US-Me4, US-Me5, US-SO3

Carbon Dioxide Fluxes In A Semiarid Environment With High Carbonate Soils
Emmerich, W. E.

Carbon dioxide is increasing in the atmosphere due to human activities. Over long time periods semiarid soils have sequestered inorganic carbon to accumulate the third largest global carbon pool. The hypothesis for this study was that these soils are maintaining this carbon pool under present climatic conditions and are a sink for …


Journal: Agricultural And Forest Meteorology, Volume 116 (1-2): 91-102 (2003). DOI: 10.1016/s0168-1923(02)00231-9 Sites: US-Wkg

Modelling The Discrimination Of 13CO2 Above And Within A Temperate Broad-Leaved Forest Canopy On Hourly To Seasonal Time Scales
Baldocchi, D. D., Bowling, D. R.

Fluxes and concentrations of carbon dioxide and 13CO2 provide information about ecosystem physiological processes and their response to environmental …


Journal: Plant, Cell And Environment, Volume 26 (2): 231-244 (2003). DOI: 10.1046/j.1365-3040.2003.00953.x Sites: US-WBW

Diurnal Centroid Of Ecosystem Energy And Carbon Fluxes At FLUXNET Sites
Wilson, K. B., Baldocchi, D., Falge, E., Aubinet, M., Berbigier, P., Bernhofer, C., Dolman, H., Field, C., Goldstein, A., Granier, A., Hollinger, D., Katul, G., Law, B. E., Meyers, T., Moncrieff, J., Monson, R., Tenhunen, J., Valentini, R., Verma, S., Wofsy, S.

Data from a network of eddy covariance stations in Europe and North America (FLUXNET) were analyzed to examine the diurnal patterns of surface energy and carbon fluxes during the summer period across a range of ecosystems and climates. Diurnal trends were quantified by assessing the time of day surface fluxes and meteorological variable …


Journal: Journal Of Geophysical Research: Atmospheres, Volume 108 (D21): n/a-n/a (2003). DOI: 10.1029/2001jd001349 Sites: US-Blo

Contribution Of Soil Respiration In Tropical, Temperate, And Boreal Forests To The O18 Enrichment Of Atmospheric O2
Angert, A., Barkan, E., Barnett, B., Brugnoli, E., Davidson, E. A., Fessenden, J., Maneepong, S., Panapitukkul, N., Randerson, J. T., Savage, K., Yakir, D., Luz, B.

The 18O content of atmospheric O2 is an important tracer for past changes in the biosphere. Its quantitative use depends on knowledge of the discrimination against 18O associated with the various Oconsumption processes. Here we evaluated, for the first time, the in situ 18O …


Journal: Global Biogeochemical Cycles, Volume 17 (3): n/a-n/a (2003). DOI: 10.1029/2003gb002056 Sites: US-LPH

Changes In Carbon Storage And Fluxes In A Chronosequence Of Ponderosa Pine
Law, B. E., Sun, O. J., Campbell, J., Van Tuyl, S., Thornton, P. E.

Forest development following stand-replacing disturbance influences a variety of ecosystem processes including carbon exchange with the atmosphere. On a series of ponderosa pine (Pinius ponderosa var. Laws.) stands ranging from 9 to> 300 years in central Oregon, USA, we used biological measurements to estimate carbon …


Journal: Global Change Biology, Volume 9 (4): 510-524 (2003). DOI: 10.1046/j.1365-2486.2003.00624.x Sites: US-Me4, US-Me5

Regional-Scale Measurements Of CH4 Exchange From A Tall Tower Over A Mixed Temperate/Boreal Lowland And Wetland Forest
Werner, C., Davis, K., Bakwin, P., Yi, C., Hurst, D., Lock, L.

The biosphere–atmosphere exchange of methane (CH4) was estimated for a temperate/boreal lowland and wetland forest ecosystem in northern Wisconsin for 1997–1999 using the modified Bowen ratio (MBR) method. Gradients of CH4 and CO2 and CO2 flux were measured on the 447-m WLEF-TV tower …


Journal: Global Change Biology, Volume 9 (9): 1251-1261 (2003). DOI: 10.1046/j.1365-2486.2003.00670.x Sites: US-Los, US-PFa, US-WCr