The Boreal Ecosystem-Atmospheric Study (BOREAS) TE-12 (Terrestrial Ecology) team collected water potential data in 1993 and 1994 from aspen, jack pine, and black spruce leaves/needles. Collections were made at the Southern Study Area Nipawin Fen Site (SSA FEN), Young Jack Pine (YJP), Young Aspen (YA), Old Aspen (OA), and Old Black Spruce (OBS) sites. Measurements were made using a pressure chamber on a platform in the field. The data are provided in tabular ASCII files. The data files are available on a CD-ROM (see document number 20010000884), or from the Oak Ridge National Laboratory (ORNL) Distributed Active Archive Center (DAAC). Hall, Forrest G. (Editor) and Curd, Shelaine (Editor) and Walter-Shea, Elizabeth A. and Mesarch, Mark A. and Chen, L. and Yang, Litao Goddard Space Flight Center NASA/TM-2000-209891/VOL168, NAS 1.15:209891/VOL168, Rept-2000-03136-0/VOL168