Journal: Tree Physiology, Volume 25 (9): 1207-1217 (2005), ISBN . DOI: 10.1093/treephys/25.9.1207 Sites: CA-Na1
Mitigating or slowing an increase in atmospheric carbon dioxide concentration ([CO2]) has been the focus of international efforts, most apparent with the development …
Journal: Global Change Biology, Volume 11 (11): 1867-1872 (2005), ISBN . DOI: 10.1111/j.1365-2486.2005.01050.x Sites: US-Bo1, US-Bo2
Aim Extrapolation of tower CO2 fluxes will be greatly facilitated if robust relationships between flux components and remotely sensed factors are established. Long-term measurements at five Northern Great Plains locations were used to obtain relationships between CO2 fluxes and photosynthetically active …
Journal: Global Ecology And Biogeography, Volume 14 (3): 271-292 (2005), ISBN . DOI: 10.1111/j.1466-822x.2005.00151.x Sites: CA-Let, US-Bkg
Using data from 28 flux measurement sites, we performed an analysis of the relationship between annual net ecosystem exchange (NEE) and the length of the carbon uptake period …
Journal: Global Change Biology, Volume 11 (10): 1777-1787 (2005), ISBN . DOI: 10.1111/j.1365-2486.2005.001012.x Sites: US-NR1
Vertical gradients of mixing ratios of volatile organic compounds have been measured in a Ponderosa pine forest in Central California (38.90° N, 120.63° W, 1315m). These measurements reveal large quantities of previously unreported oxidation products of short lived biogenic precursors. The emission of biogenic precursors must be …
Journal: Atmospheric Chemistry And Physics, Volume 5 (1): 67-75 (2005), ISBN . DOI: 10.5194/acp-5-67-2005 Sites: US-Blo
Methylbutenol is a 5-carbon alcohol that is produced and emitted by several species of pine in western North America, and may have important impacts on the tropospheric chemistry …
Journal: Plant, Cell And Environment, Volume 28 (12): 1463-1474 (2005), ISBN . DOI: 10.1111/j.1365-3040.2005.01382.x Sites: US-Blo
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
Temporal and spatial variability in the Arctic introduces considerable uncertainty in the estimation of the current carbon budget and Arctic ecosystem response to climate change. Few representative measurements are available for land-surface parameterization of the Arctic tundra in regional and global climate models. In this study, …
Journal: Journal Of Geophysical Research: Biogeosciences, Volume 111 (G3): 2005-2012 (2005), ISBN . DOI: 10.1029/2005JG000036 Sites: US-Atq, US-Brw
Evapotranspiration, a major component in terrestrial water balance and net primary productivity models, is difficult to measure and predict. This study compared five models of potential evapotranspiration (PET) applied to a ponderosa pine forest ecosystem at an AmeriFlux …
Journal: Environmental Modelling & Software, Volume 20 (6): 783-796 (2005), ISBN . DOI: 10.1016/j.envsoft.2004.04.009 Sites: US-Blo
This study reports the effects of long-term elevated atmospheric CO2 on root production and microbial activity, biomass, and diversity in a chaparral ecosystem in southern California. The free air CO2 enrichment (FACE) ring was located in a stand dominated by the woody shrub Adenostoma fasciculatum. …
Journal: Applied And Environmental Microbiology, Volume 71 (12): 8573-8580 (2005), ISBN . DOI: 10.1128/aem.71.12.8573-8580.2005 Sites: US-SO2, US-SO3