{"id":"cunliffe-2020-esd-dry","source":{"id":"cunliffe-2020","citation":"Cunliffe, A. M., McIntire, C. D., Boschetti, F., Sauer, K. J., Litvak, M., Anderson, K., & Brazier, R. E. (2020). Allometric Relationships for Predicting Aboveground Biomass and Sapwood Area of Oneseed Juniper (Juniperus monosperma) Trees. Frontiers in Plant Science, 11, 94.","title":"Allometric Relationships for Predicting Aboveground Biomass and Sapwood Area of Oneseed Juniper (Juniperus monosperma) Trees","authors":["Cunliffe, A. M.","McIntire, C. D.","Boschetti, F."],"year":2020,"venue":"Frontiers in Plant Science","doi":"10.3389/fpls.2020.00094","url":"https://doi.org/10.3389/fpls.2020.00094","read_url":"https://www.frontiersin.org/articles/10.3389/fpls.2020.00094/pdf","access":"open","license":"CC BY","checked_at":"2026-11-02","status":"current"},"name":"Oneseed juniper AGB from equivalent stem diameter (dry field measurement)","output":{"quantity":"agb"},"expression":"0.005 * DRC^3.038","published":{"expression":"0.005 * ESDDry^3.038","units":{"ESDDry":"cm"},"variables":{"ESDDry":"DRC"},"output_unit":"kg"},"taxon":{"level":"species","name":"Juniperus monosperma","family":"Cupressaceae","group":"conifer"},"region":{"scope":"site","countries":["US"],"place":"central New Mexico (34.429N, 105.861W)","biomes":["dryland"]},"stand":"natural","fit":{"n_trees":15,"dbh_min_cm":3.3,"dbh_max_cm":47.2,"method":"power model, nonlinear least squares (Gauss-Newton)"},"evidence":[{"field":"expression","quote":"ESDDry (cm)  Y = a * Xb  0.005 (0.007)  3.038 (0.352)  38.55  15","locator":"Table 2"},{"field":"fit.dbh","quote":"ESDDry 3.3 47.2","locator":"Table 1 (min, max, N=15)"}],"check":[{"inputs":{"DRC":10},"expected":5.4572,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"DRC":20},"expected":44.8228,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"DRC":40},"expected":368.1529,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"The predictor is ESD, the equivalent root-collar diameter: square root of the sum of squared root-collar diameters (DRC) of all stems of the individual, bark included. Mapped to canonical DRC (equal to the DRC for a single-stem tree). AGB includes wood and leaf and twig tissue, in kg dry mass. The coefficient a is printed to only three decimals, so predictions for small trees are coarse. Range fields hold the ESD range, not DBH."}