The BOREAS group TE-05 collected measurements in the NSA and SSA on gas exchange, gas composition and tree growth. This documentation describes leaf carbon isotope data that were collected in 1993 and 1994 at the NSA and SSA OJP, OBS and NSA UBS sites. In addition, leaf carbon isotope data were collected in 1994 only at the NSA and SSA OA sites. These data were collected to provide seasonal integrated physiological information for 10 to 15 common species at these 6 BOREAS sites.

Contains the CO2 profile concentration measurements made by the TE-05 BOREAS team in the NSA and SSA.

Contains tree ring width and C13 isotope cellulose ratio data collected by TE-05.

This table contains data collected by TE05 in the NSA and SSA on air stable istope measurements.

These data were collected by BOREAS TE-05 to provide detailed information within the canopy during times when TE-05 sampled canopy CO2 for carbon and oxygen isotope analysis. These measurements were made in both the NSA and SSA during each IFC at the OJP, OBS, UBS, and OA sites. CO2 profile data were not collected at SSA-OA during the first IFC.

The BOREAS group TE-05 collected measurements in the NSA and SSA on gas exchange, gas composition and tree growth. This data set contains measurements of the concentration and stable carbon (13C/12C) and oxygen (18O/16O) isotope ratios of atmospheric CO2 in air samples collected at different heights within forest canopies. The data were collected to determine the influence of photosynthesis and respiration by the forest ecosystems on the concentration and stable isotope ratio of atmospheric CO2. These measurements were collected at the SSA during each IFC at OJP, OBS, and OA sites. Measurements were also collected at the NSA during each 1994 IFC at the OJP, T6R5S TE UBS, and T2Q6A TE OA sites. The stable isotope ratios are expressed using standard delta notation and in units of per mil. The isotope ratios are expressed relative to the international standard, PDB, for both carbon and oxygen samples.

Contains data collected by BOREAS TE-11 team on CO2 assimilation and transpiration in the SSA.

Contains sample measurements of the canopy biochemistry measured by the TE-09 team.

Contains the leaf gas exchange data collected by TE-05 in the NSA and SSA.

Contains biomass data collected by TE-06.