AmeriFlux Publications from the Community

Greenness Indices From Digital Cameras Predict The Timing And Seasonal Dynamics Of Canopy-Scale Photosynthesis
Toomey, M., Friedl, M. A., Frolking, S., Hufkens, K., Klosterman, S., Sonnentag, O., Baldocchi, D. D., Bernacchi, C. J., Biraud, S. C., Bohrer, G., Brzostek, E., Burns, S. P., Coursolle, C., Hollinger, D. Y., Margolis, H. A., McCaughey, H., Monson, R. K., Munger, J. W., Pallardy, S., Phillips, R. P., Torn, M. S., Wharton, S., Zeri, M., Richardson, A. D.

The proliferation of digital cameras co‐located with eddy covariance instrumentation provides new opportunities to better understand the relationship between canopy phenology and the seasonality of canopy photosynthesis. In this paper we analyze the abilities and limitations of canopy color metrics measured by digital repeat photography …

Journal: Ecological Applications, Volume 25 (1): 99-115 (2015). DOI: http://doi.org/10.1890/14-0005.1 Sites: US-ARM, US-Bar, US-Ha1, US-Ho1, US-MMS, US-MOz, US-NR1, US-UMB, US-UMd, US-Var, US-Wrc

As Forests Age, Their Climate Effects Shift
Shultz, David

Although it may be difficult for us to observe in our short lifetimes, the composition of trees in a forest can be a very variable thing. When a forest is clear-cut or thinned by fire, the first trees to rebound are often the fastest growing—those that can sprout quicker than their competitors. However, over time, these speedy …

Journal: EOS, Volume 96: 1-1 (2015). DOI: 10.1029/2015EO026455 Sites: US-UMB

Modeling Forest Carbon Cycle Response To Tree Mortality: Effects Of Plant Functional Type And Disturbance Intensity
Frasson, R. P., Bohrer, G., Medvigy, D., Matheny, A. M., Morin, T. H., Vogel, C. S., Gough, C. M., Maurer, K. D., Curtis, P. S.

Journal: Journal Of Geophysical Research: Biogeosciences, Volume 120 (11): 2178-2193 (2015). DOI: 10.1002/2015JG003035 Sites: US-UMB, US-UMd

Does day and night sampling reduce spurious correlation between canopy photosynthesis and ecosystem respiration?
Dennis Baldocchi, Cove Sturtevant

It is necessary to partition eddy covariance measurements of carbon dioxide exchange into its offsetting gross fluxes, canopy photosynthesis, and ecosystem respiration, to understand the biophysical controls on the net fluxes. And independent estimates of canopy photosynthesis (G) and ecosystem respiration (R) are needed to validate …

Journal: Agricultural and Forest Meteorology, Volume 207: 117-126 (2015). DOI: 10.1016/j.agrformet.2015.03.010 Sites: CA-Ca1, CA-Ca2, CA-Ca3, CA-Let, CA-Mer, CA-NS1, CA-NS3, CA-NS5, CA-NS6, CA-NS7, CA-Oas, CA-Obs, CA-Ojp, CA-Qcu, CA-Qfo, CA-SJ2, CA-SJ3, CA-TP4, CA-WP1, US-ARM, US-Aud, US-Bo1, US-Ho1, US-Ho2, US-IB2, US-KS2, US-MMS, US-MOz, US-NC2, US-NR1, US-SO2, US-SO3, US-SO4, US-SP2, US-SP3, US-SRM, US-Ton, US-Tw3, US-UMB, US-Var, US-WBW, US-Wkg, US-Wrc

Observations Of Stem Water Storage In Trees Of Opposing Hydraulic Strategies
Matheny, A. M., Bohrer, G., Garrity, S. R., Morin, T. H., Howard, C. J., Vogel, C. S.

Journal: Ecosphere, Volume 6 (9): art165 (2015). DOI: 10.1890/ES15-00170.1 Sites: US-UMB

Forest-Atmosphere Bvoc Exchange In Diverse And Structurally Complex Canopies: 1-D Modeling Of A Mid-Successional Forest In Northern Michigan
Bryan, A. M., Cheng, S. J., Ashworth, K., Guenther, A. B., Hardiman, B. S., Bohrer, G., Steiner, A. L.

Journal: Atmospheric Environment, Volume 120: 217-226 (2015). DOI: 10.1016/j.atmosenv.2015.08.094 Sites: US-UMB

The Match And Mismatch Between Photosynthesis And Land Surface Phenology Of Deciduous Forests
D’Odorico, P., Gonsamo, A., Gough, C. M., Bohrer, G., Morison, J., Wilkinson, M., Hanson, P. J., Gianelle, D., Fuentes, J. D., Buchmann, N.

Journal: Agricultural And Forest Meteorology, Volume 214-215: 25-38 (2015). DOI: 10.1016/j.agrformet.2015.07.005 Sites: US-UMB

Greenness Indices From Digital Cameras Predict The Timing And Seasonal Dynamics Of Canopy-Scale Photosynthesis
Toomey, M., Friedl, M. A., Frolking, S., Hufkens, K., Klosterman, S., Sonnentag, O., Baldocchi, D. D., Bernacchi, C. J., Biraud, S. C., Bohrer, G., Brzostek, E., Burns, S. P., Coursolle, C., Hollinger, D. Y., Margolis, H. A., McCaughey, H., Monson, R. K., Munger, J. W., Pallardy, S., Phillips, R. P., Torn, M. S., Wharton, S., Zeri, M., Richardson, A. D.

Journal: Ecological Applications, Volume 25 (1): 99-115 (2015). DOI: 10.1890/14-0005.1 Sites: US-UMB

Probing The Past 30-Year Phenology Trend Of Us Deciduous Forests
Yue, X., Unger, N., Keenan, T. F., Zhang, X., Vogel, C. S.

Phenology is experiencing dramatic changes over deciduous forests in the USA. Estimates of trends in phenology on the continental scale are uncertain, however, with studies failing to agree on both the magnitude and spatial distribution of trends in spring and autumn. This is due to
the sparsity of in situ records, …

Journal: Biogeosciences, Volume 12 (15): 4693-4709 (2015). DOI: 10.5194/bg-12-4693-2015 Sites: US-Ha1, US-MMS, US-MOz, US-UMB

Snowpack-Atmosphere Gas Exchanges Of Carbon Dioxide, Ozone, And Nitrogen Oxides At A Hardwood Forest Site In Northern Michigan
Seok, B., Helmig, D., Liptzin, D., Williams, M. W., Vogel, C. S.

Journal: Elementa: Science Of The Anthropocene, Volume 3: 000040 (2015). DOI: 10.12952/journal.elementa.000040 Sites: US-UMB

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