<p>Table S2. Parameters of a power function equation relating tree height (H, m) and diameter at breast height (D, cm) for the common species in Gutianshan 24-ha plot. The equation was H = aDb, and was fitted through linear regression on log-transformed data. All parameters of all equations are significant at P < 0.001. CF is correction factor. The final model for height estimate is H = CF×aDb. Life forms include canopy trees (T), understory trees (U) and shrubs (S).</p><p>Life Family Species Chinese name form b Adj.r2 min D max D CF sample size 0.564 1.010 Pinaceae Pinus massoniana 马尾松 T 58 0.9118 3.7 80 182 44 0.543 1.007 Myricaceae Myrica rubra 杨梅 T 32 0.9466 1.9 41 604 18 0.563 1.015 Fagaceae Castanopsis carlesii 米槠 T 1 0.9232 1.3 42.5 439 18 0.536 1.014 Fagaceae Castanopsis eyrei 甜槠 T 83 0.9153 1.4 68.5 401 58 0.671 1.014 Fagaceae Castanopsis fargesii 栲树 T 97 0.9355 1.3 50.9 428 22 0.606 1.015 Fagaceae Castanopsis tibetana 钩栲 T 2 0.9457 1.5 43 12 10 0.569 1.015 Fagaceae Cyclobalanopsis glauca 青冈 T 41 0.933 1.2 37.9 987 17 0.476 1.009 Fagaceae Cyclobalanopsis myrsinaefolia 细叶青冈 T 64 0.9466 1.8 67.8 587 13 0.604 1.014 Fagaceae Lithocarpus glaber 石栎 T 26 0.9242 1 22.9 613 20 0.511 1.012 Fagaceae Quercus serrata var. brevipetiolata 短柄枹 T 93 0.8361 1.6 31.9 184 52 Magnoliace 0.604 1.004 ae Michelia skinnneriana 野含笑 T 72 0.9377 1.5 18.7 472 21 Calycanthac 0.551 1.002 eae Chimonanthus salicifolius 柳叶蜡梅 S 84 0.931 1.1 4.9 477 12 0.835 1.004 Lauraceae Cinnamomum chekiangense 浙江樟 T 37 0.9787 1.6 13.5 013 10 0.634 1.010 Lauraceae Cinnamomum subavenium 香桂 T 81 0.9464 1.3 24.5 018 19 0.550 1.005 Lauraceae Litsea coreana var. sinensis 豹皮樟 T 18 0.9417 1.5 20.3 465 11 0.547 1.008 Lauraceae Machilus grijsii 黄桢楠 U 58 0.8517 1.8 8.2 06 7 0.673 1.012 Lauraceae Machilus thunbergii 红楠 T 25 0.9425 2.4 34.5 58 14 0.690 1.006 Lauraceae Neolitsea aurata var. chekiangensis 浙江新木姜子 U 26 0.9558 1.1 14.4 635 25 Hamamelid Corylopsis glandulifera var. 0.683 1.004 aceae hypoglauca 灰白蜡瓣花 U 7 0.9213 1.1 7.4 9535 18 Hamamelid 0.552 1.014 aceae Distylium myricoides 杨梅叶蚊母树 T 1 0.9003 1 25.5 236 28 Hamamelid 0.482 1.006 aceae Loropetalum chinense 檵木 U 34 0.8905 1.1 21.5 925 24 0.494 1.008 Rosaceae Sorbus folgneri 石灰花楸 T 1 0.9209 1.5 22 834 15 Daphniphyll 0.583 1.010 aceae Daphniphyllum oldhamii 虎皮楠 T 82 0.9195 1.1 30.2 25 20 Anacardiace 0.565 1.008 ae Toxicodendron succedaneum 野漆树 T 53 0.9444 1.7 35.3 738 11 Aquifoliace 0.595 1.003 ae Ilex dlmerrilliana 榕叶冬青 T 1 0.9801 1.7 15.8 303 6 Aquifoliace 0.515 1.006 ae Ilex litseaefolia 木姜叶冬青 U 03 0.9105 1.7 14 217 15 Aquifoliace 0.469 1.006 ae Ilex chinensis 冬青 T 54 0.8977 1.9 26.3 158 12 Aquifoliace Ilex rotunda 铁冬青 T 0.611 0.9559 1.3 19 1.004 13 ae 52 018 0.455 1.004 Aceraceae Acer cordatum 紫果槭 T 54 0.9133 1 10.7 765 12 0.524 1.015 Sabiaceae Meliosma oldhamii 红枝柴 T 41 0.8364 1.2 40.7 099 27 Elaeocarpac 0.612 1.007 eae Elaeocarpus decipiens 杜英 T 95 0.9593 1.1 27.4 09 17 Elaeocarpac 0.617 1.018 eae Elaeocarpus japonicus 薯豆 T 98 0.872 1.9 23.5 784 10 0.561 1.007 Theaceae Adinandra millettii 黄瑞木 T 37 0.909 1.6 18.3 145 21 0.662 1.009 Theaceae Camellia fraterna 毛花连蕊茶 S 78 0.9036 1.1 7.1 085 10 0.690 1.009 Theaceae Cleyera japonica 红淡比 U 64 0.9472 1.6 21.7 27 19 0.592 1.011 Theaceae Eurya muricata 隔药柃 U 05 0.854 1.6 14.6 274 39 0.570 1.007 Theaceae Schima superba 木荷 T 08 0.9416 1.2 55.5 927 63 0.638 1.012 Theaceae Ternstroemia gymnanthera 厚皮香 T 68 0.9384 1.3 30.8 066 26 0.527 1.006 Myrtaceae Syzygium buxifolium 赤楠 U 9 0.9152 1.1 19.3 852 23 0.489 1.006 Ericaceae Lyonia ovalifolia var. hebecarpa 毛果南烛 U 8 0.8528 1.6 7.6 769 7 0.569 1.010 Ericaceae Rhododendron latoucheae 麂角杜鹃 U 91 0.8869 1.5 10.2 166 12 0.575 1.008 Ericaceae Rhododendron ovatum 马银花 U 7 0.9084 1 13.6 847 26 0.678 1.004 Ericaceae Vaccinium bracteatum 乌饭树 U 45 0.9421 1.4 11.6 564 9 0.623 1.001 Ericaceae Vaccinium mandarinorum 江南越桔 U 23 0.9264 1.5 4.3 825 7 Symplocace 0.596 1.006 ae Symplocos stellaris 老鼠矢 U 48 0.9303 1.4 12.1 267 16 0.590 1.017 Styracaceae Alniphyllum fortunei 拟赤杨 T 79 0.9008 1.5 41.2 559 15 0.456 1.004 Styracaceae Styrax odoratissimus 郁香野茉莉 U 92 0.8936 1.9 16.3 416 10 0.564 1.015 - Other species - - 976 0.9148 1 80 602 1066</p>