Buttressing impact on diameter estimation in plantation teak ( Tectona grandis L.f.) sample trees in northern Thailand

Chapman, 1998, Buttress formation and directional stress experienced during critical phases of tree development, J. Trop. Ecol., 14, 341, 10.1017/S0266467498000261 Chittibabu, 2000, Attenuated tree species diversity in human-impacted tropical evergreen forest sites at Kolli hills, Eastern Ghats, India, Biodivers. Conserv., 9, 1493, 10.1023/A:1008971015545 Clair, 2003, Biomechanics of buttressed trees: bending strains and stresses, Am. J. Bot., 90, 1349, 10.3732/ajb.90.9.1349 Crook, 1997, The function of buttress roots: a comparative study of the anchorage systems of buttressed (Aglaia and Nephelium ramboutan species) and non-buttressed (Mallotus wrayi) tropical trees, J. Exp. Bot., 48, 1703, 10.1093/jxb/48.9.1703 Demaerschalk, 1971 Dean, 2003, Calculation of wood volume and stem taper using terrestrial single-image close-range photogrammetry and contemporary software tools, Silva Fenn., 37, 359, 10.14214/sf.495 Fallah, 2012, Investigating the out-of-roundness and pith-off-centre in stems of three broadleaved species in Hyrcanian forests, J. For. Sci., 58, 513 Fonweban, 2011, Taper functions for Scots pine (Pinus sylvestris L.) and sitka spruce (Picea sitchensis (bong.) carr.) in Northern Britain, Forestry, 84, 49, 10.1093/forestry/cpq043 Forest Industry Organization, 2015 Francis, 1970 Goodwin, 2009, A cubic tree taper model, Aust. Forestry, 72, 87, 10.1080/00049158.2009.10676294 Gregoire, 1990, Modeling relative error in stem basal area estimates, Can. J. Forest Res., 20, 496, 10.1139/x90-065 Kjaer, 1995 Lewis, 1988, Buttress arrangement in Pterocarpus officinalis (Fabaceae): effects of crown asymmetry and wind, Biotropica, 20, 280, 10.2307/2388317 Mehedi, 2012, Patterns of tree buttressing at Lawachara National Park, Bangladesh, J. Forestry Res, 23, 461, 10.1007/s11676-012-0285-x Mollick, 2005, Stand quality assessment of teak (Tectona grandis Linn. F.), Int. J. Agri. Biol., 7, 543 Newbery, 2009, Buttress form of the central African rain forest tree Microberlinia bisulcata, and its possible role in nutrient acquisition, Trees, 23, 219, 10.1007/s00468-008-0270-3 Ngomanda, 2012, Derivation of diameter measurements for buttressed trees, an example from Gabon, J. Trop. Ecol., 28, 1, 10.1017/S0266467412000144 Nicoll, 1996, Adaptive growth of tree root systems in response to wind action and site conditions, Tree Physiol., 16, 891, 10.1093/treephys/16.11-12.891 Nölke, 2015, On the geometry and allometry of big-buttressed trees - a challenge for forest monitoring: new insights from 3D-modeling with terrestrial laser scanning, iForest, 10.3832/ifor1449-007 Ojansuu, 1995, Sapwood and heartwood taper in Scots pine stems, Can. J. Forest Res., 25, 1928, 10.1139/x95-208 Pandey, 2011, Buttresses induced habitat heterogeneity increases nitrogen availability in tropical rainforests, Forest Ecol. Manag, 262, 1679, 10.1016/j.foreco.2011.07.019 Parresol, 1993, Modeling multiplicative error variance: an example predicting tree diameter from stump dimensions in baldcypress [sic], Forest Sci., 39, 670 Parresol, 1990, Diameter measurement in bald cypress, Forest Ecol. Manag, 33/34, 509, 10.1016/0378-1127(90)90213-U Paterson, 1965, The determination of log volume errors due to methods of measurement and other defects for four important indigenous Kenyan tree species, E. Afr. Agr. Forestry. J., 31, 125 Pulkkinen, 2012, On non-circularity of tree stem cross-sections: effect of diameter selection on cross-section area estimation, Bitterlich sampling and stem volume estimation in Scots pine, Silva Fenn., 46, 747, 10.14214/sf.924 R Core Team, 2015 Richards, 1996 Robinson, 2011, Fitting forestry models using generalized additive models: a taper model example, Can. J. Forest Res., 41, 1909, 10.1139/x11-095 Salam, 2012, Applying taper function in standard volume equation for the past volume increment analysis of Kinuyanagi willow, J. Basic. Appl. Sci. Res., 2, 6084 Schmidt, 1997 Schreuder, 1993 Sumida, 2013, Relationships of tree height and diameter at breast height revisited: analyses of stem growth using 20-year data of an even-aged Chamaecyparis obtusa stand, Tree Physiol., 33, 106, 10.1093/treephys/tps127 Tang, 2010, Buttress trees elevate soil heterogeneity and regulate seedling diversity in a tropical rainforest, Plant Soil, 338, 301, 10.1007/s11104-010-0546-4 Thorel, 1873, vol. 4 van Zyl, 2005 Walsh, 2014, Variation in buttressing form and stem volume ratio of baldcypress [sic] trees, Trans. Ill. State Acad. Sci., 107, 5 Warner, 2007, 15 Warner, 2016 Warner, 2016, Development and evaluation of teak (Tectona grandis L.f.) taper equations in northern Thailand, Agr. Nat. Resour., 50, 362 West, 2009 Westfall, 2010, Taper models for commercial tree species in the Northeastern United States, Forest Sci., 56, 515 Young, 1994, Treefalls, crown asymmetry, and buttresses, J. Ecol., 82, 319 Zhiyuan, 2013, Buttress trees in a 20-hectare tropical dipterocarp rainforest in Xishuangbanna, SW China, J. Plant Ecol., 6, 187, 10.1093/jpe/rts031