Publications

Publications Found: 1437

Environmental Controls Over Net Ecosystem Carbon Exchange Of Scrub Oak In Central Florida
Powell, T. L., Bracho, R., Li, J., Dore, S., Hinkle, C. R., Drake, B. G.

Biological and physical controls regulating variation of seasonal and interannual ecosystem carbon exchange in a scrub oak ecosystem in central Florida were determined by measuring net ecosystem exchange of CO2 (NEE) between the atmosphere and vegetation using …


Journal: Agricultural And Forest Meteorology, Volume 141 (1): 19-34 (2006). DOI: 10.1016/j.agrformet.2006.09.002 Sites: US-KS1, US-KS2

Ecosystem-Level CO2 Fluxes From A Boreal Cutover In Eastern Canada Before And After Scarification
Giasson, M., Coursolle, C., Margolis, H. A.

Carbon (C) cycling in the boreal forest is driven by both natural and human disturbances, but there is little information on the impact of forest management practices on ecosystem-level C balance. We evaluated the C balance of a recently harvested boreal site in eastern …


Journal: Agricultural And Forest Meteorology, Volume 140 (1-4): 23-40 (2006). DOI: 10.1016/j.agrformet.2006.08.001 Sites: CA-Qcu

Carbon Fluxes Across Regions: Observational Constraints At Multiple Scales
Law, B. E., Turner, D., Campbell, J., Lefsky, M., Guzy, M., Sun, O., Tuyl, S. V., Cohen, W.


Journal: Scaling And Uncertainty Analysis In Ecology, Volume : 167-190 (2006). DOI: 10.1007/1-4020-4663-4_9 Sites: US-Me2

The Contribution Of Beneath-Snow Soil Respiration To Total Ecosystem Respiration In A High-Elevation, Subalpine Forest
Monson, R. K., Burns, S. P., Williams, M. W., Delany, A. C., Weintraub, M., Lipson, D. A.

The respiratory loss of CO2 from soil microbes beneath winter snow in forests from cold climates can significantly influence the annual carbon budget. We explored the magnitude of winter soil respiration using continuous measurements of beneath‐snow CO2 concentration within the footprint of a flux tower in a subalpine forest in …


Journal: Global Biogeochemical Cycles, Volume 20 (3): n/a-n/a (2006). DOI: 10.1029/2005GB002684 Sites: US-NR1

Estimating The Uncertainty In Annual Net Ecosystem Carbon Exchange: Spatial Variation In Turbulent Fluxes And Sampling Errors In Eddy-Covariance Measurements
Oren, R., Hsieh, C., Stoy, P., Albertson, J., Mccarthy, H. R., Harrell, P., Katul, G. G.

Above forest canopies, eddy covariance (EC) measurements of mass (CO2, H2O vapor) and energy exchange, assumed to represent ecosystem fluxes, are commonly …


Journal: Global Change Biology, Volume 12 (5): 883-896 (2006). DOI: 10.1111/j.1365-2486.2006.01131.x Sites: US-Dk1, US-Dk2, US-Dk3

An Evaluation Of Models For Partitioning Eddy Covariance-Measured Net Ecosystem Exchange Into Photosynthesis And Respiration
Stoy, P. C., Katul, G. G., Siqueira, M. B., Juang, J., Novick, K. A., Uebelherr, J. M., Oren, R.

We measured net ecosystem CO2 exchange (NEE) using the eddy covariance (EC) technique for 4 years at adjoining old field (OF), planted pine (PP) and hardwood forest (HW) ecosystems in the Duke Forest, NC. To compute annual sums of NEE and its components – gross …


Journal: Agricultural And Forest Meteorology, Volume 141 (1): 2-18 (2006). DOI: 10.1016/j.agrformet.2006.09.001 Sites: US-Dk3

Influences Of Canopy Photosynthesis And Summer Rain Pulses On Root Dynamics And Soil Respiration In A Young Ponderosa Pine Forest
Misson, L., Gershenson, A., Tang, J., McKay, M., Cheng, W., Goldstein, A.
Our first objective was to link the seasonality of fine root dynamics with soil respiration in a ponderosa pine (Pinus ponderosa P. & C. Lawson) plantation located in the Sierra Nevada of California. The second objective was to examine how canopy photosynthesis influences fine root initiation, …


Journal: Tree Physiology, Volume 26 (7): 833-844 (2006). DOI: 10.1093/treephys/26.7.833 Sites: US-Blo

An Eddy Covariance Mesonet To Measure The Effect Of Forest Age On Land-Atmosphere Exchange
Goulden, M. L., Winston, G. C., McMillan, A. M., Litvak, M. E., Read, E. L., Rocha, A. V., Rob Elliot, J.

We deployed a mesonet of year-round eddy covariance towers in boreal forest stands that last burned in ∼1850, ∼1930, 1964, 1981, 1989, 1998, and 2003 to understand how CO2 exchange and evapotranspiration change during secondary succession. We used MODIS imagery to establish that the tower sites were representative …


Journal: Global Change Biology, Volume 12 (11): 2146-2162 (2006). DOI: 10.1111/j.1365-2486.2006.01251.x Sites: CA-NS1, CA-NS2, CA-NS3, CA-NS5, CA-NS6, CA-NS7

Model-Data Synthesis Of Diurnal And Seasonal CO2 Fluxes At Niwot Ridge, Colorado
Sacks, W. J., Schimel, D. S., Monson, R. K., Braswell, B. H.

Eddy covariance records hold great promise for understanding the processes controlling the net ecosystem exchange of CO2 (NEE). However, NEE is the small difference …


Journal: Global Change Biology, Volume 12 (2): 240-259 (2006). DOI: 10.1111/j.1365-2486.2005.01059.x Sites: US-NR1

Winter Forest Soil Respiration Controlled By Climate And Microbial Community Composition
Monson, R. K., Lipson, D. L., Burns, S. P., Turnipseed, A. A., Delany, A. C., Williams, M. W., Schmidt, S. K.

Most terrestrial carbon sequestration at mid-latitudes in the Northern Hemisphere occurs in seasonal, montane forest ecosystems1. Winter respiratory carbon dioxide losses from these ecosystems are high, and over half of the carbon assimilated by photosynthesis in the summer can be lost the following winter2,3. The amount of winter …


Journal: Nature, Volume 439 (7077): 711-714 (2006). DOI: 10.1038/nature04555 Sites: US-NR1