Publications

Publications Found: 1378

The Annual Cycles Of CO2 And H2O Exchange Over A Northern Mixed Forest As Observed From A Very Tall Tower
Davis, K. J., Bakwin, P. S., Yi, C., Berger, B. W., Zhao, C., Teclaw, R. M., Isebrands, J. G.

We present the annual patterns of net ecosystem-atmosphere exchange (NEE) of CO2 and H2O observed from a 447 m tall tower sited within a mixed forest in northern …


Journal: Global Change Biology, Volume 9 (9): 1278-1293 (2003), ISBN . DOI: 10.1046/j.1365-2486.2003.00672.x Sites: US-Los, US-PFa, US-WCr

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), ISBN . DOI: 10.1029/2003gb002035 Sites: US-Blo, US-Me4, US-Me5, US-SO3

The Uptake Of Gaseous Organic Nitrogen By Leaves: A Significant Global Nitrogen Transfer Process
Sparks, J. P., Roberts, J. M., Monson, R. K.

We report measurements of the uptake of peroxyacetyl nitrate (PAN) by plant leaves at mixing ratios typical of the continental lower troposphere. PAN uptake rates between 20 and 55 pmol m−2 s−1 were measured in eight plant species at an atmospheric mixing ratio of 250 pptv. Uptake rates in all species were …


Journal: Geophysical Research Letters, Volume 30 (23): n/a-n/a (2003), ISBN . DOI: 10.1029/2003gl018578 Sites: US-NR1

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), ISBN . DOI: 10.1029/2002gb001983 Sites: CA-Mer

Ecophysiological Controls On The Carbon Balances Of Three Southern Boreal Forests
Griffis, T., Black, T., Morgenstern, K., Barr, A., Nesic, Z., Drewitt, G., Gaumont-Guay, D., McCaughey, J.


Journal: Agricultural And Forest Meteorology, Volume 117 (1-2): 53-71 (2003), ISBN . DOI: 10.1016/s0168-1923(03)00023-6 Sites: CA-Oas, CA-Obs, CA-Ojp

Effects Of Elevated Atmospheric CO2 On Net Ecosystem CO2 Exchange Of A Scrub-Oak Ecosystem
Hymus, G. J., Johnson, D. P., Dore, S., Anderson, H. P., Ross Hinkle, C., Drake, B. G.

We report the results of a 2-year study of effects of the elevated (current ambient plus 350 μmol CO2 mol−1) atmospheric CO2 concentration (Ca) on net ecosystem CO2 exchange (NEE) of a scrub–oak ecosystem. The measurements were made in open-top chambers …


Journal: Global Change Biology, Volume 9 (12): 1802-1812 (2003), ISBN . DOI: 10.1111/j.1365-2486.2003.00675.x Sites: US-KS2

On Comparison Of Modeled Surface Flux Variations To Aircraft Observations
Song, J., Wesely, M.

Evaluation of models of air–surface exchange is facilitated by an accurate match of areas simulated with those seen by micrometeorological flux measurements. Here, spatial variations in fluxes estimated with the parameterized subgrid-scale surface (PASS) flux model were compared to flux variations seen aboard aircraft above the …


Journal: Agricultural And Forest Meteorology, Volume 117 (3-4): 159-171 (2003), ISBN . DOI: 10.1016/s0168-1923(03)00042-x Sites: US-Wlr

Abiotic Constraints On The Establishment Of Quercus Seedlings In Grassland
Danner, B. T., Knapp, A. K.

High evaporative demand and periodic drought characterize the growing season in midwestern grasslands relative to deciduous forests of the eastern US, and predicted climatic …


Journal: Global Change Biology, Volume 9 (2): 266-275 (2003), ISBN . DOI: 10.1046/j.1365-2486.2003.00574.x Sites: US-KFB, US-Kon

Carbon In Amazon Forests: Unexpected Seasonal Fluxes And Disturbance-Induced Losses
Saleska, S. R., Miller, S. D., Matross, D. M., Goulden, M. L., Wofsy, S. C., Rocha, H. R. da, Camargo, P. B. de, Crill, P., Daube, B. C., Freitas, H. C. de, Hutyra, L., Keller, M., Kirchhoff, V., Menton, M., Munger, J. W., Pyle, E. H., Rice, A. H., Silva, H.

The net ecosystem exchange of carbon dioxide was measured by eddy covariance …


Journal: Science, Volume 302 (5650): 1554-1557 (2003), ISBN . DOI: 10.1126/science.1091165 Sites: BR-Sa1, BR-Sa3

Characterization Of Secondary Atmospheric Photooxidation Products: Evidence For Biogenic And Anthropogenic Sources
Spaulding, R. S., Schade, G. W., Goldstein, A. H., Charles, M. J.

Measurements of the biogenic hydrocarbons isoprene and 2-methyl-3-buten-2-ol (MBO), their first-, second-, and third-generation photooxidation products methacrolein (MACR), methyl vinyl ketone (MVK), acetone, 2-hydroxy-2-methylpropanal (2-HMPR), glycolaldehyde, hydroxyacetone, methylglyoxal, and glyoxal, and carbon monoxide (CO), …


Journal: Journal Of Geophysical Research: Atmospheres, Volume 108 (D8): n/a-n/a (2003), ISBN . DOI: 10.1029/2002jd002478 Sites: US-Blo