Tree Pruning Proposal T1517 T1530

Topics: Shrub, Arboriculture, Arborist Pages: 42 (958 words) Published: March 2, 2015
Project Title: Main Contract for Footbridge at Tuen Mun River Client: Peako Engineering Co. Limited
Location: Tuen Mun Town Park

Tree Pruning Proposal for
T1517 to T1530

Prepared by

Cho Shek Man (ISA Certified Arborist No.: HK-1007A)
Date: 13 January 2015

1.

INTRODUCTION

14 trees (tag no. T1517 to T1530) are located at the site where the construction works of the new footbridge at Tuen Mun River are carried out. Because of phototropism, the tree crowns were asymmetrical, skewing to the West. The objective of this pruning proposal is to provide indicative pruning cutline to tree canopy to maintain the crown symmetry and the tree health. The general status of the trees is summarized in Table 1 and the tree location is shown in Figure 1.

To promote a symmetric tree canopy, all crown pruning works will be process base on arboricultural practices; Pruning to clean, thin and reduce method adopted from “Best Management Practice Tree Pruning Revised 2008” issued by International Society of Arboriculture in according with companion publication to the ANSI A300 Part 1: Tree, Shrub, and Other Woody plant Maintenance – Standard Practices, Pruning. General information regarding to these methods has been attached under Annex I. For detail, please refer to the guideline booklet mentioned above.

Table 1. General status of trees that will be affected by the sheet piling works Tree
No.

Botanical

Name

Chinese
Name

Height
(m)

Trunk
Diameter
(DBH)
(mm)

Spread
(m)

Health
Good
Fair

Form
Good
Fair

Amenity
Value
High

Poor

Poor

Medium
Low

Proposed
treatment

T1517

Koelreuteria bipinnata

複葉欒樹

6.9

180

5.3

G

G

H

Pruning

T1518

Koelreuteria bipinnata

複葉欒樹

7.2

230

6.2

G

G

H

Pruning

T1519

Koelreuteria bipinnata

複葉欒樹

7.1

130

6

F

F

H

Pruning

T1520

Koelreuteria bipinnata

複葉欒樹

7.3

140

4.5

G

G

H

Pruning

T1521

Koelreuteria bipinnata

複葉欒樹

7.7

170

3.1

F

F

H

Pruning

T1522

Koelreuteria bipinnata

複葉欒樹

7.7

160

4.7

G

G

H

Pruning

T1523

Koelreuteria bipinnata

複葉欒樹

7.8

240

4.7

G

G

H

Pruning

T1524

Koelreuteria bipinnata

複葉欒樹

7.5

180

4.5

F

F

H

Pruning

T1525

Koelreuteria bipinnata

複葉欒樹

7.5

160

3.3

F

F

H

Pruning

T1526

Melaleuca leucadendron

白千層

10.6

310

5.6

G

G

H

Pruning

T1527

Koelreuteria bipinnata

複葉欒樹

7.9

170

6.4

F

G

H

Pruning

T1528

Melaleuca leucadendron

白千層

11

390

7.3

G

G

H

Pruning

T1529

Koelreuteria bipinnata

複葉欒樹

7.6

280

6

F

F

H

Pruning

T1530

Koelreuteria bipinnata

複葉欒樹

7.8

240

6

G
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