114 Lai et al: Heritage Trees in Macau Table 1. Botanical composition, tree dimensions, and mean age of the 790 heritage trees in Macau grouped by 50 genera. Genus Total no. of trees Acacia Aglaia Albizia Aleurites Aporosa Araucaria Artocarpus Averrhoa Bombax Bridelia Canarium Cassia Celtis Cinnamomum Cleistocalyx Cordia Delonix Dimocarpus Diospyros Dracontomelon Elaeocarpus Erythrina Eucalyptus Ficus Hibiscus Ilex Lagerstroemia Litchi Litsea Lophostemon Macaranga Machilus Mangifera Manikara Michelia Morus Murraya Ormosia Phyllanthus Pinus Plumeria Podocarpus Pterospermum Rhaphiolepis Sapindus Sapium Schefflera Sterculia Syzygium Ulmus Total Mean 2 1 14 10 1 1 6 4 21 3 1 2 10 44 3 1 11 38 1 2 3 8 1 440 1 2 2 2 21 1 1 2 2 1 3 4 3 1 1 3 26 12 13 4 3 6 2 7 38 1 790 No. of street trees 1 4 2 2 2 7 No. of non- street trees 1 1 10 8 1 1 4 2 14 3 1 2 12 2 14 7 231 10 32 3 1 9 24 1 2 3 1 1 209 1 2 2 2 1 20 1 1 2 2 1 3 4 3 1 1 3 1 2 1 289 26 12 13 4 3 5 2 7 36 501 No. of native trees 2 1 14 10 1 3 21 3 1 2 10 44 3 1 11 38 1 2 3 8 1 64 1 2 2 2 21 1 2 1 2 3 1 1 3 12 11 4 3 6 2 7 31 1 300 26 2 376 1 3 4 No. of Mean Mean Total exotic trees height (m) 11.0 3.2 15.1 12.8 9.2 20.0 13.0 11.0 17.7 13.3 18.5 12.8 13.0 13.9 15.5 17.0 14.6 12.0 9.0 16.0 9.7 14.7 13.5 13.8 7.0 12.5 5.5 1 2 1 4 13.5 14.0 12.0 13.0 15.0 15.3 10.0 15.7 9.0 7.0 15.0 7.0 15.5 7.6 13.0 19.1 6.6 12.2 12.3 8.9 7 490 12.4 ©2020 International Society of Arboriculture 11.1 12.7 12.0 ) area (m2 ) 49.1 7.1 97.7 66.2 19.6 12.6 78.1 86.3 98.2 119.5 23.8 66.3 142.8 120.6 109.3 50.3 114.5 87.3 36.3 158.9 72.9 107.6 18.1 98.1 7.1 1,368.1 662.2 19.6 12.6 468.5 345.0 2,063.1 358.5 23.8 132.6 1,428.3 5,307.9 328.0 50.3 1,259.1 3,315.5 36.3 317.7 218.8 860.6 18.1 90.0 39,587.0 28.3 94.7 17.1 81.7 57.0 70.9 28.3 189.4 34.1 163.4 1,197.1 70.9 283.5 182.7 88.5 38.5 77.6 65.3 20.8 122.7 28.3 27.8 28.7 35.1 164.5 13.7 64.0 62.3 12.0 48.2 70.7 113.1 74.6 283.5 365.4 176.9 38.5 232.7 261.2 62.4 122.7 28.3 83.4 744.9 421.2 2,138.9 54.8 192.1 373.5 23.9 337.5 2,685.5 113.1 68,710.4 crown crown dbh area (m2 Mean Total leaf (cm) 92.5 27.0 89.0 89.9 47.0 80.0 82.8 84.5 99.5 57.5 73.0 78.0 92.6 107.2 92.0 90.0 96.4 65.8 65.0 86.5 79.0 111.6 140.0 area (m2 ) 675.0 13.2 7,377.4 2,797.0 103.9 135.7 2,299.9 1,483.7 10,675.7 1,974.6 197.7 765.4 8,686.4 23,290.1 1714.2 341.8 5,827.8 16,767.9 272.8 1,088.2 1,133.2 4,773.2 193.2 158.8 204,744.0 58.0 78.5 29.0 63.5 83.7 69.0 135.6 1,042.4 148.7 975.8 6,869.7 462.4 100.0 106.0 102.5 64.3 83.3 75.7 46.7 42.5 39.6 79.3 62.5 56.1 108.7 17.6 68.3 62.0 65.0 62.4 88.8 110.0 78.2 area (m2 ) 337.5 13.2 527.0 279.7 103.9 135.7 383.3 370.9 508.4 658.2 197.7 382.7 868.6 529.3 571.4 341.8 529.8 441.3 272.8 544.1 377.7 596.7 193.2 465.3 135.6 521.2 74.3 487.9 327.1 462.4 1,247.5 1247.5 1,777.6 941.5 329.0 1,580.5 1,408.7 319.3 687.2 179.1 469.9 4,193.4 5118.9 1,0311.5 302.9 1016.0 1,770.8 141.0 1,634.4 13,895.7 550.3 354,841.5 397.9 119.8 888.8 470.7 329.0 526.8 352.2 106.4 687.2 179.1 156.6 161.3 426.6 793.2 75.7 338.7 295.1 70.5 233.5 365.7 550.3 100 100 109 111 100 100 120 208 127 113 100 110 133 157 107 220 101 152 100 110 100 111 110 108 100 100 120 100 126 100 100 155 140 100 100 163 133 100 100 110 132 145 141 100 117 110 100 111 156 125 Mean Mean leaf age
March 2020
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