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Arain, M. A., Restrepo-Coupe, N.
Eddy covariance measurements of carbon dioxide (CO2) and water vapour fluxes were made from June 2002 to May 2003 over a 65-year-old temperate conifer plantation forest in southern Ontario, Canada. This site is part of a newly initiated long-term tower flux measurement …
Journal: Agricultural And Forest Meteorology, Volume 128 (3-4): 223-241 (2005), ISBN . DOI: 10.1016/j.agrformet.2004.10.003 Sites: CA-Ca1, CA-TP1, CA-TP2, CA-TP3, CA-TP4, US-Dk3, US-GLE, US-Ho1, US-Me4, US-Me5, US-NR1
Butnor, J. R., Johnsen, K. H., Maier, C. A.
Soil CO2 efflux is a major component of net ecosystem productivity (NEP) of forest systems. Combining data from multiple researchers for larger-scale modeling and assessment will only be valid if their methodologies provide directly comparable …
Journal: Biogeochemistry, Volume 73 (1): 283-301 (2005), ISBN . DOI: 10.1007/s10533-004-4022-1 Sites: US-Dk2, US-Dk3
Palmroth, S., Maier, C. A., McCarthy, H. R., Oishi, A. C., Kim, H., Johnsen, K., Katul, G. G., Oren, R.
Forest floor CO2 efflux (Fff) depends on vegetation type, climate, and soil physical properties. We assessed the effects of biological factors on Fff by comparing a maturing pine plantation (PP) and a nearby mature Oak-Hickory-type hardwood forest (HW). Fff was …
Journal: Global Change Biology, Volume 11 (3): 421-434 (2005), ISBN . DOI: 10.1111/j.1365-2486.2005.00915.x Sites: US-Dk3
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
Hibbard, K. A., Law, B. E., Reichstein, M., Sulzman, J.
Over two-thirds of terrestrial carbon is stored belowground and a significant amount of atmospheric CO2 is respired by roots and microbes in soils. For this analysis, soil respiration (Rs) data were assembled from 31 AmeriFlux and CarboEurope sites representing deciduous broadleaf, evergreen needleleaf, grasslands, mixed …
Journal: Biogeochemistry, Volume 73 (1): 29-70 (2005), ISBN . DOI: 10.1007/s10533-004-2946-0 Sites: US-Dk3, US-Ho1, US-Me2, US-Me4, US-Me5, US-NR1, US-Ton, US-UMB, US-WCr
Maier, C. A., Albaugh, T. J., Allen, H. L., Dougherty, P. M.
We used estimates of autotrophic respiration (RA), net primary productivity (NPP) and soil CO2 evolution (Sff), to develop component carbon budgets for 12-year-old loblolly pine plantations during the fifth year of a fertilization and irrigation experiment. Annual carbon use in RA …
Journal: Global Change Biology, Volume 10 (8): 1335-1350 (2004), ISBN . DOI: 10.1111/j.1529-8817.2003.00809.x Sites: US-Dk3
Matamala, R., Gonzalez-Meler, M. A., Jastrow, J. D., Norby, R. J., Schlesinger, W. H.
We commend Luo et al. (1) for their effort to extend the analysis of our data (2) …
Journal: Science, Volume 304 (5678): 1745d-1745d (2004), ISBN . DOI: 10.1126/science.1099340 Sites: US-Dk3, US-WBW
Bond-Lamberty, B., Wang, C., Gower, S. T.
Soil surface CO2 flux (RS) is overwhelmingly the product of respiration by roots (autotrophic respiration, RA) and soil organisms (heterotrophic respiration, RH). Many studies have attempted to partition RS into these two components, with highly …
Journal: Global Change Biology, Volume 10 (10): 1756-1766 (2004), ISBN . DOI: 10.1111/j.1365-2486.2004.00816.x Sites: BR-Ma2, CA-Man, CA-Oas, CA-Obs, US-Dk1, US-Dk2, US-Dk3, US-Ha2, US-Me1, US-Me3, US-Me4, US-Me5, US-WBW
Suwa, M., Katul, G. G., Oren, R., Andrews, J., Pippen, J., Mace, A., Schlesinger, W. H.
The effects of elevated atmospheric CO2 (CO2e) on soil respiration were evaluated using inverse models and static chamber measurements collected over 4.5 years in a maturing loblolly pine forest. The chamber measurements of forest floor CO2 efflux showed that the flux enhancement increased …
Journal: Global Biogeochemical Cycles, Volume 18 (2): n/a-n/a (2004), ISBN . DOI: 10.1029/2003gb002182 Sites: US-Dk3
Hui, D., Wan, S., Su, B., Katul, G., Monson, R., Luo, Y.
Missing data is a ubiquitous problem in evaluating long-term experimental measurements, such as those associated with the FluxNet project, due to the equipment failures, system maintenance, power-failure, and lightning strikes among other things. To estimate annual values …
Journal: Agricultural And Forest Meteorology, Volume 121 (1-2): 93-111 (2004), ISBN . DOI: 10.1016/s0168-1923(03)00158-8 Sites: US-Dk3, US-NR1, US-WBW