Publisher's Synopsis
Excerpt from The Great Basin Naturalist, 1980, Vol. 40
Stem xylem water potential (predawn) of conifers along a 10 x 50 m transect from meadow through aspen to conifer was mea sured with a pms pressure bomb (waring and Cleary 1967) on 3 August 1977. At least three different branches of each spruce or fir were measured; these trees were all about 1 m tall. Tree Species population structure along this same transect was assessed by aging stems and estimating their heights. Ages were determined by counting terminal bud scale scars or annual growth rings in xy lem cores. In the latter case, the age at the coring height m) was corrected to total age by adding 5 years for aspen and 20 years for fir or spruce, values based on average number of bud scale scars at that height.
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