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Baldocchi, D., Falge, E., Wilson, K.
The advent of long-term studies on CO2 and water vapor exchange provides us with new information on how the atmosphere and biosphere interact. Conventional time series analysis suggests that temporal fluctuations of weather variables and mass and energy flux densities occur on numerous time scales. The time scales …
Journal: Agricultural And Forest Meteorology, Volume 107 (1): 1-27 (2001). DOI: 10.1016/s0168-1923(00)00228-8 Sites: US-WBW
Wilson, K. B., Baldocchi, D. D., Hanson, P. J.
Temporal trends in photosynthetic capacity are a critical factorin determining the seasonality and magnitude of ecosystem carbonfluxes. At a mixed deciduous forest in the south-eastern United States (Walker Branch Watershed, Oak Ridge, TN, USA), we independently measured seasonal trends in photosynthetic capacity (using single-leaf …
Journal: Plant, Cell And Environment, Volume 24 (6): 571-583 (2001). DOI: 10.1046/j.0016-8025.2001.00706.x Sites: US-WBW
Wilson, K. B., Baldocchi, D. D.
At a deciduous forest in the southeast United States (Walker Branch Watershed, Oak Ridge, Tennessee), as at other sites with tall vegetation and/or complex terrain, it is difficult to temporally integrate …
Journal: Journal Of Geophysical Research: Atmospheres, Volume 106 (D24): 34167-34178 (2001). DOI: 10.1029/2001jd000624 Sites: US-WBW
Hanson, P. J., Todd, D. E., Amthor, J. S.
Journal: Tree Physiology, Volume 21 (6): 345-358 (2001). DOI: 10.1093/treephys/21.6.345 Sites: US-WBW
Wilson, K. B., Baldocchi, D. D.
The components of the surface energy balance were measured for 3 years over a broadleaved deciduous forest using the eddy covariance technique. Within years, the magnitude and distribution of fluxes was controlled by seasonal changes in solar radiation, drought, as well as leaf emergence and senescence. Evapotranspiration increased …
Journal: Agricultural And Forest Meteorology, Volume 100 (1): 1-18 (2000). DOI: 10.1016/s0168-1923(99)00088-x Sites: US-WBW
Wilson, K. B., Baldocchi, D. D., Hanson, P. J.
We used gas exchange techniques to estimate maximum rate of carboxylation (Vcmax), a measure of photosynthetic capacity, in the understory and upper crown of a closed deciduous forest over two seasons. There was extensive variability in photosynthetic capacity as a result of vertical canopy position, species type, …
Journal: Tree Physiology, Volume 20 (9): 565-578 (2000). DOI: 10.1093/treephys/20.9.565 Sites: US-WBW
Wilson, K. B., Hanson, P. J., Baldocchi, D. D.
The energy balance components were measured above the ground surface of a temperate deciduous forest over an annual cycle using the eddy covariance technique. Over a year, the net radiation at the forest floor was 21.5% of that above the canopy, but this proportion was not constant, primarily because of the distinct phenological …
Journal: Agricultural And Forest Meteorology, Volume 102 (2-3): 83-103 (2000). DOI: 10.1016/s0168-1923(00)00124-6 Sites: US-WBW
Bowling, D. R., Baldocchi, D. D., Monson, R. K.
The combination of isotopic measurements and micrometeorological flux measurements is a powerful new approach that will likely lead to new insight into the dynamics of CO2 exchange between terrestrial …
Journal: Global Biogeochemical Cycles, Volume 13 (4): 903-922 (1999). DOI: 10.1029/1999gb900072 Sites: US-WBW
Malhi, Y., Baldocchi, D. D., Jarvis, P. G.
Forest biomes are major reserves for terrestrial carbon, and major components of global primary productivity. The carbon balance of forests is determined by a number of component …
Journal: Plant, Cell And Environment, Volume 22 (6): 715-740 (1999). DOI: 10.1046/j.1365-3040.1999.00453.x Sites: CA-Obs, US-WBW
Bowling, D. R., Turnipseed, A. A., Delany, A. C., Baldocchi, D. D., Greenberg, J. P., Monson, R. K.
The micrometeorological flux measurement technique known as relaxed eddy accumulation (REA) holds promise as a powerful new tool for ecologists. The more popular eddy covariance (eddy correlation) technique requires the use of sensors that can respond at fast rates (10 Hz), and these are unavailable for many ecologically relevant …
Journal: Oecologia, Volume 116 (3): 306-315 (1998). DOI: 10.1007/s004420050592 Sites: US-WBW
