1 INTRODUCTION

1.1 This Broad Tree Survey Report documents the existing trees within Ocean Park, and provides

supplementary information for the Landscape Resources (LR1 – “Theme Park Planting on Flatland”

and LR2 – “Theme Park Planting on Hillside”) for the Landscape Impact Assessment (Section 4 of

EIA Report).

1. Full description of the proposed redevelopment is provided in Section 2 of the EIA report.

2. Detailed Tree Survey and Felling Proposal should be submitted to relevant Government Department

in accordance with ETWB TCW No. 2/2004, 14/2002, and 29/2004, during Detailed Design Stage.

1.4 For easy reference towards the proposed redevelopment, the area of LR1 – “Theme Park Planting on

Flatland” is named as “The Waterfront” and that of LR2 – “Theme Park Planting on Hillside” is named

as “The Summit”.

Objectives of Broad Tree Survey Report

1.5 The objectives of this report are as follows: ° Identify and provide a broad inventory of existing trees affected by proposed works ° Prepare Broad Tree Survey Plans showing location of trees an tree groups

° Present photographic records of the affected trees ° Prepare tree retention, transplantation and tree felling suggestion

Methodology

1.6 The surveyed trees and tree groups are documented in the Broad Tree Survey Schedule (Annex A)

and Photographic record (Annex B), with location marked on the Broad Tree Survey Plan (Fig. A-1

and Fig. A-2).

1.7 The following information were recorded during tree surveys carried out in Dec 2005 and are

tabulated in the Broad Tree Survey Schedule in Annex A: ° Photo No. ° Species ° Approximate quantities (Nos.) ° Range of overall height (m) ° Range of Tree Crown (m) ° Amenity value ° Survival Rate after transplantation ° Direct Conflict with Proposed Work ° Recommendation

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Repositioning and Long Term Operation Plan of Ocean Park Environmental Impact Assessment Study --Broad Tree Survey Report

Amenity Value of an Existing Tree

1.8 Conventionally, the term “Amenity Value” is used to describe the visual aspect of a tree. For Ocean Park, due to its special nature and history, the concept of “Amenity Value” should be expanded to include other aspects like origin and age. Various factors, including (in decreasing priority of importance/ consideration according to the Park’s context) are considered:

Prominence/ Location – a good tree has to be located or positioned prominently or “eye-catching” to get visual attention and thus to be admired; a good tree screened by other trees, and/or located in inaccessible areas may not be considered to have high value;

Origin and Age – old mature trees that are retained and protected at least 35 years ago when Ocean Park first constructed will have significant value of reminiscence and remembrance (e.g. 70 years camphor trees); self-seeded trees are of high value than planted trees;

Size and Form – large mature trees with prominent good trunk and/or tree crown in good symmetry according to the species; large mature trees giving high aesthetic value or visually pleasing; no obvious broken or damaged branches;

Species – rare/ endangered/ protected species in association with origin of trees, i.e., a rare tree planted by Ocean Park a few years ago may not fit into the consideration; species with special conservation and ecological interest;

Health – trees of good health and/or showing vigorous stamina; no diseases;

Survival Rate after Transplant

1.9 The survival rate after transplant is determined in accordance with the following criterion: ° Species: some tree species have better chances for survival but some are not; ° Condition of the tree, Size and Maturity: small and younger trees have a better chance of survival

after transplant while larger, mature trees are difficult to transplant both logistically and in terms of survival rate;

Recommendations

1.10 Recommended treatments to trees with different grading are as follows:

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Repositioning and Long Term Operation Plan of Ocean Park Environmental Impact Assessment Study --Broad Tree Survey Report

2 TREE SURVEY RESULTS AND RECOMMENDATION

“The Waterfront”

1. Approximately 670 nos. of tree were documented during the survey. Refer to Annex A: Broad Tree Survey Schedule, and Annex B: Photographic Record of Trees,

2. The majority of surveyed trees are ornamental, while some are woodland trees, and the majority of trees are common in Hong Kong. A total of 62 nos. of tree species were recorded. The 10 most abundant species are as follow:

3. Approx. 44 nos. of tree are classified as High Amenity Value. The species are:

° Albizia lebbeck ° Aleurites moluccana ° Alstonia scholaris ° Aquilaria sinensis ° Araucaria heterophylla; ° Artocarpus altilis ° Bombax ceiba ° Celtis sinensis ° Cinnamomum camphora ° Delonix regia ° Ficus elastica ° Ficus microcarpa ° Melaleuca leucadendron ° Peltophorum pterocarpum ° Pterocarpus indicus ° Sapium sebiferum ° Schima superba

1. Approx. 474 nos. are classified as Medium Amenity Value and 152 nos. are Low Amenity Value.

2. Approx. 670 nos. of tree would be affected by the proposed work. 597 nos. are found with direct

conflict while 73 nos. are with possible conflict with the work.

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Repositioning and Long Term Operation Plan of Ocean Park Environmental Impact Assessment Study --Broad Tree Survey Report

2.6 Proposed recommendation are as follow:

“The Summit”

1. Approximately 1518 nos. of tree were documented during the survey. Refer to Annex A: Broad Tree Survey Schedule, and Annex B: Photographic Record of Trees,

2. The majority of surveyed trees are pioneer woodland species, while some are ornamental trees, and the majority of trees are common in Hong Kong. A total of 44 nos. of tree species were recorded. The 10 most abundant species are as follow:

2.10 Approx. 28 nos. of tree are classified as High Amenity Value. The species are:

° Araucaria heterophylla ° Bombax ceiba ° Celtis sinensis ° Delonix regia ° Ficus microcarpa

1. Approx. 523 nos. are classified as Medium Amenity Value and 967 nos. are Low Amenity Value.

2. Approx. 1378 nos. of tree would be affected by the proposed work. 1348 nos. are found with direct

conflict while 30 nos. are with possible conflict with the work.

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Repositioning and Long Term Operation Plan of Ocean Park Environmental Impact Assessment Study --Broad Tree Survey Report

2.13 Proposed recommendation are as follow:

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