Article Figures & Data
Figures
- Figure 1.
The beautiful tree A situated in a tree pit on the edge of the footpath in Sports Road photographed before crown reduction. Note the unusually abundant growth of aerial roots which bestow a unique character to the specimen.
- Figure 2.
The original and destination locations of the two transplanted Chinese Banyans. Note the alignment of the old and new race tracks in relation to tree positions, and the new Sports Road.
- Figure 3.
Tree A shortly after massive crown reduction. Note the loss of most foliage and twigs, and cutting down to major branches and limbs.
- Figure 4.
Tree A about 18 months after crown reduction. Note the regrowth of some foliage mainly as sprouts from cut faces, the base plate supporting the steel container, and the beams propping the tree.
- Figure 5.
One of the two angled sledge units that wedge belowthe base plate. Note thefour hydraulic shoes which continuously level the tree, and the rail on which they rest.
- Figure 6.
Tree A on the left and tree B on the right behind it immediately before the transfer. Note the construction of reinforced concrete rail bedding on which the tree would slide on rails towards the destination.
Tables
- Table 1.
Relevant dimensions and weights related to the transplant of two mature Chinese Banyans.
Attributes Tree A Tree B Original tree height (m) 23.9 20.3 Reducted tree height (m) 14.5 15.2 Original crown spread (m) 21.7 30.5 Reduced crown spread (m) 13.1 15.9 dbh (m) 2.1 1.8 Original tree weight (Mg) 167.6 104.6 Reduced tree weight (Mg) 101.7 78.3 Container diameter (m) 8.0 8.0 Soil depth (m) 1.8 1.8 Soil volume(m3) 90.5 90.5 Soil (saturated) weight (Mg) 187.3 187.3 Steel structure weight (Mg) 20.0 20.0 Total transplant weight (Mg) 309.0 285.6 Transfer distance (m) 32.0 57.0 Transfer gradient (%) 8.0 4.0 Original level (mPD) 4.8 4.8 Destination level (mPD) 6.9 6.9 Estimate of tree weight: [(dbh x 1.5)/2]2 x [tree height] x [density of living tissue reckoned to be 0.9 Mg/m3].
Estimate of soil weight: [soil volume] x [(dry bulk density of soil reckoned to be 1.72 Mg/m3) ÷ (0.35 Mg/m3 of soil moisture held in 35% porosity)].
Estimated weight of steel structure given by project engineer.
Container diameter varies from 7.0 to 9.0 m, with the midpoint used in calculation of soil volume.
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