Publications

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Publications Found: 70

A Global Relationship Between The Heterotrophic And Autotrophic Components Of Soil Respiration?
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). 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

Fast Labile Carbon Turnover Obscures Sensitivity Of Heterotrophic Respiration From Soil To Temperature: A Model Analysis
Gu, L., Post, W. M., King, A. W.

Labile carbon, although often a small fraction of soil organic carbon (SOC), significantly affects heterotrophic respiration at short timescales because of its rapid decomposition. However, in the current literature, most soil respiration measurements are interpreted without simultaneous information on labile carbon pool dynamics. …


Journal: Global Biogeochemical Cycles, Volume 18 (1): n/a-n/a (2004). DOI: 10.1029/2003gb002119 Sites: US-WBW

A Nonparametric Method For Separating Photosynthesis And Respiration Components In CO2 Flux Measurements
Yi, C., Li, R., Bakwin, P. S., Desai, A., Ricciuto, D. M., Burns, S. P., Turnipseed, A. A., Wofsy, S. C., Munger, J. W., Wilson, K., Monson, R. K.

Future climate change is expected to affect ecosystem-atmosphere CO2 exchange, particularly through the influence of temperature. To date, however, few studies have shown that differences in the response of net ecosystem CO2 exchange (NEE) to temperature among ecosystems can be explained by differences in the …


Journal: Geophysical Research Letters, Volume 31 (17): n/a-n/a (2004). DOI: 10.1029/2004gl020490 Sites: US-Ha2, US-Los, US-NR1, US-PFa, US-WBW, US-WCr

Diurnal And Seasonal Changes In Stem Increment And Water Use By Yellow Poplar Trees In Response To Environmental Stress
McLaughlin, S. B., Wullschleger, S. D., Nosal, M.
To evaluate indicators of whole-tree physiological responses to climate stress, we determined seasonal, daily and diurnal patterns of growth and water use in 10 yellow poplar (Liriodendron tulipifera L.) trees in a stand recently released from competition. Precise measurements of stem increment …


Journal: Tree Physiology, Volume 23 (16): 1125-1136 (2003). DOI: 10.1093/treephys/23.16.1125 Sites: US-WBW

Modelling The Discrimination Of 13CO2 Above And Within A Temperate Broad-Leaved Forest Canopy On Hourly To Seasonal Time Scales
Baldocchi, D. D., Bowling, D. R.

Fluxes and concentrations of carbon dioxide and 13CO2 provide information about ecosystem physiological processes and their response to environmental …


Journal: Plant, Cell And Environment, Volume 26 (2): 231-244 (2003). DOI: 10.1046/j.1365-3040.2003.00953.x Sites: US-WBW

Impacts Of Fine Root Turnover On Forest NPP And Soil C Sequestration Potential
Matamala, R., Gonzalez-Meler, M. A., Jastrow, J. D., Norby, R. J., Schlesinger, W. H.

Estimates of forest net primary production (NPP) demand accurate estimates of root production and turnover. We assessed root turnover with the use of an isotope tracer in two forest free-air carbon dioxide enrichment experiments. Growth at elevated carbon dioxide did not accelerate root turnover in either the pine or the hardwood …


Journal: Science, Volume 302 (5649): 1385-1387 (2003). DOI: 10.1126/science.1089543 Sites: US-Dk3, US-WBW

How The Environment, Canopy Structure And Canopy Physiological Functioning Influence Carbon, Water And Energy Fluxes Of A Temperate Broad-Leaved Deciduous Forest–An Assessment With The Biophysical Model CANOAK
Baldocchi, D. D., Wilson, K. B., Gu, L.
This paper focuses on how canopy structure, its physiological functioning and the environment interact to control and drive the exchange of carbon dioxide (CO2) and water vapor between a temperate forest stand and the atmosphere. First, we present an overview of how temporal and spatial variations …


Journal: Tree Physiology, Volume 22 (15-16): 1065-1077 (2002). DOI: 10.1093/treephys/22.15-16.1065 Sites: US-WBW

Belowground Carbon Allocation In Forests Estimated From Litterfall And IRGA-Based Soil Respiration Measurements
Davidson, E., Savage, K., Bolstad, P., Clark, D., Curtis, P., Ellsworth, D., Hanson, P., Law, B., Luo, Y., Pregitzer, K., Randolph, J., Zak, D.

Allocation of C to belowground plant structures is one of the most important, yet least well quantified fluxes of C in terrestrial ecosystems. In a literature review of mature forests worldwide, Raich …


Journal: Agricultural And Forest Meteorology, Volume 113 (1-4): 39-51 (2002). DOI: 10.1016/s0168-1923(02)00101-6 Sites:
CR-Lse, US-Dk3, US-Ho1, US-Me4, US-MMS, US-UMB, US-WBW

A Six-Year Study Of Sapling And Large-Tree Growth And Mortality Responses To Natural And Induced Variability In Precipitation And Throughfall
Hanson, P. J., Todd, D. E., Amthor, J. S.
Global climatic change may cause changes in regional precipitation that have important implications for forest growth in the southern United States. In 1993, a stand-level experiment was initiated on Walker Branch Watershed, Tennessee, to study the sensitivity of forest saplings and large trees to changes …


Journal: Tree Physiology, Volume 21 (6): 345-358 (2001). DOI: 10.1093/treephys/21.6.345 Sites: US-WBW

Modeling CO2 And Water Vapor Exchange Of A Temperate Broadleaved Forest Across Hourly To Decadal Time Scales
Baldocchi, D. D., Wilson, K. B.

Fluxes of carbon dioxide, water and energy between a temperate deciduous forest and the atmosphere were quantified across time scales of hours, days, seasons, years and decades. This exercise was performed using stand-level eddy covariance flux measurements and a biophysical model, CANOAK. The CANOAK model was tested with measurements …


Journal: Ecological Modelling, Volume 142 (1-2): 155-184 (2001). DOI: 10.1016/s0304-3800(01)00287-3 Sites: US-WBW