Publications

Publications Found: 1371
Extensive Observations Of Co2carbon Isotope Content In And Above A High-Elevation Subalpine Forest
Bowling, D. R., Burns, S. P., Conway, T. J., Monson, R. K., White, J. W.

The dynamics of forest-atmosphere CO2 carbon isotope exchange were examined in a coniferous forest in Colorado, United States. Tunable diode laser absorption spectrometry provided extensive characterization of the carbon isotope content (δ13C) of CO2. Observed patterns in δ13C of forest …


Journal: Global Biogeochemical Cycles, Volume 19 (3): n/a-n/a (2005), ISBN . DOI: 10.1029/2004gb002394 Sites: US-NR1

Comparing Net Ecosystem Exchange Of Carbon Dioxide Between An Old-Growth And Mature Forest In The Upper Midwest, Usa
Desai, A. R., Bolstad, P. V., Cook, B. D., Davis, K. J., Carey, E. V.

Old-growth forests are often assumed to exhibit no net carbon assimilation over time periods of several years. This generalization has not been typically supported by the few whole-ecosystem, stand-scale eddy-covariance measurements of carbon dioxide exchange in old-growth forests. An eddy-flux tower installed in a >300-year-old …


Journal: Agricultural And Forest Meteorology, Volume 128 (1-2): 33-55 (2005), ISBN . DOI: 10.1016/j.agrformet.2004.09.005 Sites: US-Syv, US-WCr

On The Separation Of Net Ecosystem Exchange Into Assimilation And Ecosystem Respiration: Review And Improved Algorithm
Reichstein, M., Falge, E., Baldocchi, D., Papale, D., Aubinet, M., Berbigier, P., Bernhofer, C., Buchmann, N., Gilmanov, T., Granier, A., Grunwald, T., Havrankova, K., Ilvesniemi, H., Janous, D., Knohl, A., Laurila, T., Lohila, A., Loustau, D., Matteucci, G., Meyers, T., Miglietta, F., Ourcival, J., Pumpanen, J., Rambal, S., Rotenberg, E., Sanz, M., Tenhunen, J., Seufert, G., Vaccari, F., Vesala, T., Yakir, D., Valentini, R.

This paper discusses the advantages and disadvantages of the different methods that separate net ecosystem exchange (NEE) into its major components, gross ecosystem carbon uptake (GEP) and ecosystem respiration (Reco). In particular, we analyse the effect of the extrapolation of night-time values of ecosystem …


Journal: Global Change Biology, Volume 11 (9): 1424-1439 (2005), ISBN . DOI: 10.1111/j.1365-2486.2005.001002.x Sites: US-Bo1, US-Bo2

Energy And Water Exchanges From A Temperate Pine Plantation Forest
Restrepo, N. C., Arain, M. A.

This paper summarizes the energy and water vapour fluxes for the first 14 months at a newly initiated flux tower site at a 65-year-old temperate conifer forest (Pinus strobus


Journal: Hydrological Processes, Volume 19 (1): 27-49 (2005), ISBN . DOI: 10.1002/hyp.5758 Sites: CA-TP1, CA-TP3, CA-TP4

Spatial–Temporal Variation In Soil Respiration In An Oak–Grass Savanna Ecosystem In California And Its Partitioning Into Autotrophic And Heterotrophic Components
Tang, J., Baldocchi, D. D.

The spatial upscaling of soil respiration from field measurements to ecosystem levels will be biased without studying its spatial variation. We took advantage of the unique spatial gradients of an oak–grass savanna ecosystem in California, with widely spaced oak trees overlying a grass layer, to study the spatial variation in soil …


Journal: Biogeochemistry, Volume 73 (1): 183-207 (2005), ISBN . DOI: 10.1007/s10533-004-5889-6 Sites: US-Ton

Foliage Shedding In Deciduous Forests Lifts Up Long-Distance Seed Dispersal By Wind
Nathan, R., Katul, G. G.

Seed terminal velocity and release height are recognized as key biotic determinants of long-distance dispersal (LDD) of seeds by wind. Yet, potential determinants at the ecosystem level, such as seasonal dynamics in foliage density characterizing many deciduous forests, have received much less attention. We integrated detailed field …


Journal: Proceedings Of The National Academy Of Sciences, Volume 102 (23): 8251-8256 (2005), ISBN . DOI: 10.1073/pnas.0503048102 Sites: US-Dk3

Ecosystem And Understory Water And Energy Exchange For A Mature, Naturally Regenerated Pine Flatwoods Forest In North Florida
Powell, T. L., Starr, G., Clark, K. L., Martin, T. A., Gholz, H. L.

Eddy covariance was used to measure energy fluxes from July 2000 – June 2002 above the tree canopy and above the understory in a mature, naturally regenerated slash pine (Pinus elliottii Engelm. var. elliottii) – longleaf pine (Pinus palustris Mill.) flatwoods forest. Understory latent energy (λE) …


Journal: Canadian Journal Of Forest Research, Volume 35 (7): 1568-1580 (2005), ISBN . DOI: 10.1139/x05-075 Sites: US-SP1

An Improved Analysis Of Forest Carbon Dynamics Using Data Assimilation
Williams, M., Schwarz, P. A., Law, B. E., Irvine, J., Kurpius, M. R.

There are two broad approaches to quantifying landscape C dynamics – by measuring changes in C stocks over time, or by measuring fluxes of C directly. However, these data may be patchy, and have gaps or biases. An alternative approach to generating C budgets has been to use process-based models, constructed to simulate the key …


Journal: Global Change Biology, Volume 11 (1): 89-105 (2005), ISBN . DOI: 10.1111/j.1365-2486.2004.00891.x Sites: US-Me5

Carbon And Biomass Partitioning In Balsam Fir (Abies Balsamea)
Xing, Z., Bourque, C. P., Swift, D. E., Clowater, C. W., Krasowski, M., Meng, F.
Balsam fir (Abies balsamea (L.) Mill) was extensively sampled to investigate the effects of forest management practices, site location, within-crown position, tree component (i.e., stem, foliage, branches and roots), and tree social classes on biomass and carbon (C) partitioning at the individual …


Journal: Tree Physiology, Volume 25 (9): 1207-1217 (2005), ISBN . DOI: 10.1093/treephys/25.9.1207 Sites: CA-Na1

The Conversion Of The Corn/Soybean Ecosystem To No-Till Agriculture May Result In A Carbon Sink
Bernacchi, C. J., Hollinger, S. E., Meyers, T.

Mitigating or slowing an increase in atmospheric carbon dioxide concentration ([CO2]) has been the focus of international efforts, most apparent with the development …


Journal: Global Change Biology, Volume 11 (11): 1867-1872 (2005), ISBN . DOI: 10.1111/j.1365-2486.2005.01050.x Sites: US-Bo1, US-Bo2