{"id":"tipu-2021-h-inverse","source":{"id":"tipu-2021","citation":"Tipu, M. T. K., Manzoor Rashid, A. Z. M., Tahasina, C., & Mahmood, H. (2021). Semi-destructive approach in developing allometric biomass for Chukrasia tabularis in Sylhet region of Bangladesh. Journal of Tropical Forest Science, 33(2), 203–212.","title":"Semi-destructive approach in developing allometric biomass for Chukrasia tabularis in Sylhet region of Bangladesh","authors":["Tipu, M. T. K.","Manzoor Rashid, A. Z. M.","Tahasina, C."],"year":2021,"venue":"Journal of Tropical Forest Science","doi":"10.26525/jtfs2021.33.2.203","url":"https://doi.org/10.26525/jtfs2021.33.2.203","read_url":"https://web.archive.org/web/2024/https://info.frim.gov.my/infocenter_applications/jtfsonline/jtfs/v33n2/203-212.pdf","access":"open","checked_at":"2026-11-02","status":"current"},"name":"C. tabularis height from D (1/H = a + b/D, Model 3)","output":{"quantity":"height"},"expression":"1 / (0.024 + 0.643 / D)","published":{"expression":"1 / (0.024 + 0.643 * (1 / DBH))","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"m"},"taxon":{"level":"species","name":"Chukrasia tabularis","family":"Meliaceae","group":"broadleaf"},"region":{"scope":"site","countries":["BD"],"place":"Rema-Kalenga Wildlife Sanctuary, Sylhet region, Bangladesh","biomes":["tropical"]},"stand":"natural","fit":{"dbh_min_cm":9,"dbh_max_cm":52,"h_min_m":9,"h_max_m":37,"r2":0.617,"method":"linear regression of 1/H on 1/D (adjusted R2 reported)"},"evidence":[{"field":"expression","quote":"1/H = a + b (1/D) ... 0.024 ... 0.643","locator":"Table 2, Model 3"},{"field":"expression","quote":"The linear model (1/H = 0.024 + 0.643 × (1/D)) appeared as best-fit model for total height and diameter at breast height relationship","locator":"Results, p. 207"}],"check":[{"inputs":{"D":10},"expected":11.325,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":25},"expected":20.1126,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":40},"expected":24.9532,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"r2 here is the adjusted R2 (0.617) as printed in Table 2; RSE printed as 0.011 (on 1/H scale), left out. Range from the sampling description (98 model-development trees, 9–52 cm and 9–37 m)."}