{"id":"zianis-2003-fig1-msp-d30","source":{"id":"zianis-2003","citation":"Zianis, D., & Mencuccini, M. (2003). Aboveground biomass relationships for beech (Fagus moesiaca Cz.) trees in Vermio Mountain, Northern Greece, and generalised equations for Fagus sp. Annals of Forest Science, 60(5), 439–448.","title":"Aboveground biomass relationships for beech (Fagus moesiaca Cz.) trees in Vermio Mountain, Northern Greece, and generalised equations for Fagus sp.","authors":["Zianis, D.","Mencuccini, M."],"year":2003,"type":"journal-article","venue":"Annals of Forest Science","doi":"10.1051/forest:2003036","url":"https://doi.org/10.1051/forest:2003036","read_url":"https://hal.science/hal-00883716/document","access":"open","checked_at":"2026-11-05","status":"current","notes":"The publisher's PDF returned HTTP 403 to the automated check, so publisher access could not be confirmed; the supplied HAL paper copy was read."},"name":"Fagus moesiaca stump dry biomass from diameter at 30 cm (Fig. 1)","output":{"quantity":"stem_biomass"},"expression":"0.1954 * D30^0.9788","published":{"expression":"0.1954 * DB^0.9788","units":{"DB":"cm"},"variables":{"DB":"D30"},"output_unit":"kg"},"taxon":{"level":"species","name":"Fagus moesiaca","group":"broadleaf"},"region":{"scope":"site","countries":["GR"],"place":"Vermio Mountain, Northern Greece","biomes":["temperate"]},"stand":"natural","fit":{"r2":0.7532},"evidence":[{"field":"expression","quote":"M_SP = 0.1954 D_B^0.9788","locator":"Figure 1, p. 443 (rendered page)"},{"field":"fit.r2","quote":"R² = 0.7532","locator":"Figure 1, p. 443 (rendered page)"},{"field":"output","quote":"MSP: stump mass","locator":"Table III note, p. 442"},{"field":"output","quote":"oven dried to constant weight","locator":"Section 2.2, p. 441"},{"field":"published.units","quote":"Biomass is expressed in kg, diameter in cm, and height in m.","locator":"Table III note, p. 442"},{"field":"published.units","quote":"the diameter at 0.30 m above ground (DB)","locator":"Section 2.2, p. 441"},{"field":"taxon","quote":"Fagus moesiaca Cz.","locator":"Abstract, p. 439"},{"field":"region","quote":"Vermio Mountains of Northern\nGreece","locator":"Abstract, p. 439"},{"field":"region","quote":"the forest can be classified as temperate Mediterranean","locator":"Section 2.1, p. 440"},{"field":"stand","quote":"Naturally regenerated, pure beech","locator":"Section 2.1, p. 440 (rendered page)"}],"check":[{"inputs":{"D30":20},"expected":3.667522,"origin":"computed","note":"Computed from the printed Figure 1 equation."}],"verification":"original_read","doubt":"Figure 1 supplies no SEE or correction factor and does not identify whether 0.1954 includes the log-back-transform correction discussed in Section 2.3. This record uses the printed curve; verify correction handling before treating its output as mean stump dry mass.","checked_at":"2026-11-05","notes":"DB is diameter at 0.30 m above ground, mapped to D30. Stump mass only, not whole-stem biomass. The printed equation is used as shown; no additional correction can be calculated from the Figure 1 information."}