Visual inspection of hazardous trees assessment methods in amenity forests of Peninsular Malaysia
Visual inspection to identify potential hazardous tree is a useful tool during tree inspections. Since amenity forests in Peninsular Malaysia have become popular and attract tourists for recreation activities, inspection for hazardous tree at amenity forest becoming crucial. Forest Department Pen...
Saved in:
| Main Author: | |
|---|---|
| Format: | Thesis |
| Language: | English |
| Published: |
2017
|
| Subjects: | |
| Online Access: | http://psasir.upm.edu.my/id/eprint/70891/1/FH%202017%203%20-%20IR.pdf |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| Summary: | Visual inspection to identify potential hazardous tree is a useful tool during tree
inspections. Since amenity forests in Peninsular Malaysia have become popular
and attract tourists for recreation activities, inspection for hazardous tree at
amenity forest becoming crucial. Forest Department Peninsular Malaysia has
produced guideline for inspection of hazardous tree that is based on
International Society of Arboriculture (ISA) with modifications to adapt Malaysian
forest conditions as well as department’s requirement of tree asessments. The
aims of this study are to (i) review and compare the results of tree hazardous
assessment between two methods, FDPM method and ISA method and (ii)
examine the number, structure and species as well as level of hazardous trees
at selected amenity forests. Based on the results, 819 trees from the study areas
were potentially hazardous. The trees were from 48 families, 99 genera and 144
species. At the tree family level, 29.67% of the trees were from
Dipterocarpaceae. In term of individual species, Syzygium syzygioides is the
most potential hazardous species in the study areas with 44 individuals followed
by Dryobalanops oblongifolia and Koompassia malaccensis. Negeri Sembilan
among other states and Ulu Bendol Amenity Forest among other amenity forests
has shown to have the highest number of tress with potentially hazardous.
Results also shown that from FDPM method, the level of hazardous trees in the
study areas was rated as 7 to 9 whereas ISA method was rated as 6 to 8. FDPM
and ISA method have showed to have similarity of patern in resulting the
potentially hazardous tree and concluded that FDPM method can be potentially
applied on hazardous tree assessment in other amenity forests in Peninsular
Malaysia. |
|---|