Great Basin Naturalist


Height-diameter (basal or canopy) relationships for Juniperus scopulorum trees taken from wet and dry sites were quite different, but total aboveground weight-diameter relationships for trees taken from the two sites did not differ. It is shown that log total weight (kg) = approximately 1.7 + 2.26 log basal diameter (cm) =−2.55 + 2.98 log canopy diameter (cm). Though the first relationship (r2 = 0.98) is stronger than the second (r2 = 0.80), the canopy diameter-weight relationship may be useful for estimating tree weights from aerial photos. Root-shoot ratios for wet site trees 5, 12, and 31 cm in basal diameter were 37, 27, and 26 percent, respectively.