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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
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
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
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
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
Xu, L., Baldocchi, D. D.
Understanding seasonal changes in photosynthetic parameters and stomatal conductance is crucial for modeling long-term carbon uptake and energy fluxes of ecosystems. Gas exchange measurements of CO2 and light response curves on blue oak leaves (Quercus douglasii H. & A.) were conducted weekly throughout the …
Journal: Tree Physiology, Volume 23 (13): 865-877 (2003), ISBN . DOI: 10.1093/treephys/23.13.865 Sites: US-Ton
Li, J., Dugas, W. A., Hymus, G. J., Johnson, D. P., Hinkle, C. R., Drake, B. G., Hungate, B. A.
Elevated atmospheric carbon dioxide (Ca) usually reduces stomatal conductance, but the effects on plant transpiration in the field are not well understood. Using …
Journal: Global Change Biology, Volume 9 (1): 96-105 (2003), ISBN . DOI: 10.1046/j.1365-2486.2003.00557.x Sites: US-KS2
Vourlitis, G. L., Verfaillie, J., Oechel, W. C., Hope, A., Stow, D., Engstrom, R.
The spatial and temporal patterns in CO2 flux for the Kuparuk River Basin, a 9200-km2 watershed located in NE Alaska were estimated using the Regional …
Journal: Global Change Biology, Volume 9 (6): 930-941 (2003), ISBN . DOI: 10.1046/j.1365-2486.2003.00639.x Sites: US-HVa, US-Upa
Schade, G. W., Goldstein, A. H.
Mixing ratios and emission rates of monoterpenes were measured above a ponderosa pine plantation in the Sierra Nevada mountains before, during and after a pre-commercial thinning in spring 2000. The thinning removed and left onsite approximately one half of the plantations biomass. Monoterpene fluxes increased tenfold during the …
Journal: Geophysical Research Letters, Volume 30 (7): n/a-n/a (2003), ISBN . DOI: 10.1029/2002gl016138 Sites: US-Blo
Chen, F., Yates, D. N., Nagai, H., LeMone, M. A., Ikeda, K., Grossman, R. L.
Land surface heterogeneity over an area of 71 km × 74 km in the lower Walnut River watershed, Kansas, was investigated using models and measurements from the 1997 Cooperative Atmosphere Surface Exchange Study (CASES-97) field experiment. As an alternative approach for studying heterogeneity, a multiscale atmospheric and surface …
Journal: Journal Of Hydrometeorology, Volume 4 (2): 196-218 (2003), ISBN . DOI: 10.1175/1525-7541(2003)4<196:LSHITC>2.0.CO;2 Sites: US-Wlr