EBIS Pretreatment Data


Figure 4.  14C signatures in 1999 tree ring cellulose across the Oak Ridge Reservation (J. Gaudinski and S. Trumbore, UC-Irvine).

 
 

Figure 5.  14C signatures in year 2000 foliage from red maple and white oak trees across the Oak Ridge Reservation. (Samples collected by P. Hanson and J. Amthor analysis conducted by John Southon,  LLNL).

 

Figure 6.  Graph of the annual pattern of northern hemisphere and tree ring 14C signatures from 1900 through 2000 for various location on the Oak Ridge Reservation. (Samples collected by J. Gaudinski, D. Todd, P. Hanson and J. Amthor analysis conducted by Julia Gaudinski and/or John Southon)

 

Figure 7.  Seasonal pattern of tissue 14C signatures within two herbaceous plants grown in 2000.   The x-axis is arbitrary and the temporal arrangement of high signatures may nor may not actually agree between plants.  Microstegium is a C4 plant and Solidago a C3.