Malaysian Applied Biology Journal

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46_04_11

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Malays. Appl. Biol. (2017) 46(4): 91–101

TREE HEALTH STATUS OF MIXED SPECIES IN URBAN FOREST

OF TAMAN RIMBA ALAM, PUTRAJAYA, MALAYSIA

 

NORBAIAH, M.Y.1, NAZRE, M.1*, KAMZIAH ABD KUDUS1 and NUR NISHA MOHD IDRUS2


1Department of Forest Management, Faculty Forestry, University Putra Malaysia

43400 Serdang, Selangor

2Perbadanan Putrajaya, Kompleks Perbadanan Putrajaya,

24, Persiaran Perdana, Presint 3, 62675 Putrajaya


*Email: This e-mail address is being protected from spambots. You need JavaScript enabled to view it

 

Accepted 5 September 2017, Published online 31 December 2017

 

ABSTRACT

Taman Rimba Alam (TRA), Putrajaya is a metropolitan recreational park with an area of 160 ha planted with various tropical forest species. Although TRA is a man-made forest, it serves and functions as any other natural forest especially for the well-being of people in urban area. In order to ensure that TRA could functions as it has been envisaged, tree health is one of major element that needed to be monitored. In forest plantation practises, tree health usually is measured by the growth performance (using diameter or height), and mortality rate within an area planted or among species group. However, Visual Tree Assessment (VTA) method established by the International of Arboriculture (ISA) could be applied to assess tree health for mixed species of planted trees such as in TRA. In order to do that, a study was carried out to assess the tree health in TRA by using the modified VTA method. A total of 644 trees from various species and sizes in TRA were selected and inspected. Results showed that most trees are in good health, but the status of health was different based on species and size of trees. The VTA method also showed that tree defects were mostly found in the crown part due to competition for space and light. Suitable maintenance particularly thinning programme should be done periodically to maintain tree health and reduce tree defects.

Key words: Tree health, visual tree assessment, urban, planted tree

 

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