Street Tree Inventory and Tree Risk Assessment of Selected Major Roads in Kuala Lumpur, Malaysia (original) (raw)
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STREET TREE INVENTORY & TREE RISK ASSESSMENT OF SELECTED MAJOR ROADS OF KUALA LUMPUR, MALAYSIA
2011
""Tree planting programs in Malaysia have progressed as planned. However, the subsequent management of the street trees, particularly at Kuala Lumpur City Hall, is not well undertaken due to inadequate information for management and maintenance purposes. There has never been a systematic tree survey conducted to inventory street trees in Kuala Lumpur. With this, a survey was conducted to collect comprehensive information on tree structure, species composition, species diversity, and tree defects and disorders. A total 2,191 street trees were surveyed. ""
Reviewing Tree Risk Inventory Framework for Tropical Urban Trees by Malaysia Experts
Environment-Behaviour Proceedings Journal
Malaysia lost 14.4% of its forests due to deforestation. As a result, the forests' ability to protect against physical disturbances was no longer practical. The study aims to review a framework of tree risk inventory for Malaysia’s tropical urban trees. Some expert interview sessions were conducted with Malaysian experts to present the proposed framework. Found that 100% of the experts agree with the framework presented. Additional components were added to the framework based on the data collected. The study could increase the relevant organizations' knowledge of managing tropical urban trees and decrease the deterioration and decline of tropical urban trees in Malaysia. Keywords: hazardous trees; tree monitoring; urban forestry, tree assessment eISSN: 2398-4287 © 2022. The Authors. Published for AMER ABRA CE-Bs by e-International Publishing House, Ltd., UK. This is an open-access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). Peer...
Tree Health Assessment for Roadside Tree in Kota Kinabalu City Centre , Sabah
This study aimed to assess the health of main tree in the Kota Kinabalu City Centre, Sabah. In this study, principal evaluation standards were made by using visual observation of trees or Visual Tree Assessment (VTA). This study was conducted to identify any effect of damage or defect on trees via the observation of trees at their roots, stems, branches and leaves. There were five zones in the study area, namely from KK Lama and Jesselton Point (Zone 1) to Pasar Besar. The tree health parameters were evaluated from the presence of pests and diseases, trees health, foliage colour, the growth rate of trees, infections of the trees and potential failure of tree roots. In this study, nine of pathogens, pests and diseases of trees were observed, which were termites, fungi, aphid, mushrooms, epiphytes, parasites, ants, weeds and Whiteflies. This study showed that there were 23 species from the 688 stand of trees in the study area. The study found that the state average foliage colour was normal, a moderate growth rate and infection of the tree was still under controlled. The potential failure of tree root was found in low level as well. In a nutshell, the overall health of trees was found to be in good and moderate levels. This study was conducted as a reference in health detection of tree for The City Hall management (DBKK) and also as a reference for University students in conducting tree health assessment.
Journal of Forestry Washington, 2010
Trees have been playing important roles in our lives for centuries; however, too often, city councils in Malaysia are unaware about the consequences of a tree failure such as property damage and personal injury. Identifying hazardous trees and taking appropriate corrective actions can protect property and save lives. A study was conducted to identify the criteria and indicators needed to identify hazardous street trees in Kuala Lumpur, Malaysia. The Delphi method was used in this study to solicit the opinion from the experts through a series of questionnaires. This study generated and identified 6 criteria and 38 indicators that arborist need to evaluate to identify hazardous street trees in Kuala Lumpur. Hopefully the generated criteria and indicators will be an initial step for Malaysian park managers as they implement their hazard tree management programs.
Reviewing Tree Risk Inventory Model for Tropical Urban Trees by Malaysian Experts
Environment-Behaviour Proceedings Journal
The study aims to develop a new framework of tree assessment that is suitable for Malaysia’s tropical urban trees. A focus group discussion (FGD) method was conducted with Malaysian experts regarding the criteria needed to assess a tree's condition starting from the juvenile stage. Found that 92% of the participants agree with the preliminary framework presented. Additional components were added to the preliminary framework based on the data collected. The study could increase the relevant organizations' knowledge of managing urban trees and decrease the deterioration and decline of urban trees in Malaysia. Keywords: hazardous trees; tree monitoring; urban forestry, tree assessment eISSN: 2398-4287 © 2022. The Authors. Published for AMER ABRA cE-Bs by e-International Publishing House, Ltd., UK. This is an open access article under the CC BYNC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). Peer–review under responsibility of AMER (Association of Malaysian Env...
Comparison of Four Methods of Street Tree Assessment
1993
Householders and professionals were surveyed regarding the suitability of eight street tree species planted in their area. The same species were rated in slide presentations, and physical inspections were undertaken of sidewalk damage associated with tree roots. There was more agreement among householder, expert and slide simulation procedures in rating specific attributes than in judging overall suitability of a street tree. Sidewalk inspections did not correlate with other information sources on root damage. The benefits and limitations of each assessment procedure are described.
An Inventory of Multipurpose Avenue Trees of Urban Chandigarh, India
Trees in urban ecosystems play a vet2/significant role in environmental protection by checking air and noise pollntants, abating wind, and handling many other functions, in India, Chandigarh is the mosl modern and em,iromnentally safe city and qualifies to be called a GREEN CITY because of its rich tree component. This is so in spite of its high population density, currently over 9,443 people per square kin, perhaps the highest in the country. It has nearly 42,000 trees growing along the roads in a systematic manner. The drives are identified with the type of multipurpose tree species. Nearly 66 tree species (over half indigenous) are seen along the roadsides; these trees provide shade, timber, fuel, fodder, fruit, medicine, and other benefits. In addition, the city is decorated with 11 gardens harboring over 200 types of trees. The concept of urban forestry includes not only aesthct- This presentation aims at describing the rich diversity of ics, but also fmmtions for environmental...
Asian Journal of Conservation Biology, 2019
This paper provides more important quantification analysis such as abundance, relative density, frequency, relative frequency, important value and average species density of Lower Risk tree species with taxonomic information of LR tree species and IUCN red list categories version 2.3 and version 3.1. 20 quadrates, each 10×10 m 2 size, were placed randomly at each of the both sites on Highway for floristic study of LR tree species and quantitative analysis such as Abundance A (%), Relative Density RD (%), Frequency F (%), Relative Frequency RF (%), Important Value IV (%) and Density D (plants/m 2). The samples (Part of tree species) collected from the both sites were dried and poisoned with saturated mercuric chloride (Hgcl 2) solutions with ethyl alcohol (C 2 H 6 O) (115 g mercuric chloride dissolved in 4.5 liter ethyl alcohol, called Kew Mixture) and After the specimens were poisoned, they were dried and affixed (along with a label) on mounting sheets [28 cm X 42 cm (±1 cm) dimen-sion] by using fevicol glue. A total identified 6 LR tree species Pongamia pinnata (L.) Pierre (1 ± 1.07), Acacia auriculiformis Benth (0.4 ± 0.59), Alstonia scholaris (L.) R.Br. (1.6 ± 1.31), Delonix regia (Hook.) Raf. (1 ± 0.97), Shorea robusta Gaertner f. (0.2 ± 0.52) and Thuja occidentalis L. (0.05 ± 0.22). The research work was totally based on identification of LR tree species, IUCN category red list status, taxonomic information and quantitative analysis of LR tree species along the highway.
Urban trees – their impacts and roles in the urban forest
Arboricultural Journal, 2019
Urban treestheir impacts and roles in the urban forest Presenting three major papers this is the fourth and final issue of the Arboricultural Journal for 2019. One paper considers root intrusions and damage, one the problems of assessing street-tree condition in the absence of effective, professional arboriculture, and one the ecosystem services provided by a widely-planted non-native tree. Damage by intrusive street-tree roots is a big issue as trees become urbanised and as planted street-trees are used to improve local environmental conditions. In this context, tree roots often intrude into sewerage pipes and storm-water drains to cause potential damage. Dealing with such intrusions may be expensive for local authorities and agencies such as utility companies. Therefore, finding ways to identify individual trees responsible for damage can be helpful but so far has proved problematic. Effective but non-destructive identification of trees with intrusive roots can help reduce costs and target resources to best effect. Fransson (2019) investigates the potential for using the concentrations in tree tissues, of eight heavy metals (silver, gold, cadmium, lead, palladium, rubidium, antimony, and zinc) and of potassium in identifying whether the tree roots were intrusive into sewer pipes or storm-water drains. Meunpong, Buathong, and Kaewgrajang (2019) take a view of the issues for street-tree evaluation and management in a major emerging urban area, namely the city of Bangkok in Thailand. The context for the study is the Bangkok Metropolitan Area (BMA), Thailand's capital city. This has around 1,200 kilometres of main roads and side-streets with about 103,000 large trees along these, and in other public spaces. However, despite the obvious need for these trees to be monitored, assessed, and managed for things like public safety or nuisance reasons, little arboricultural work is done. The trees require professional management to avoid unnecessary and potentially catastrophic fall or dropping of trunks and branches. With tropical storms and the like, there is a serious risk of injury or damage to property; and so it is surprising that so little is done within the BMA, in terms of managing its street-tree resource. This paper seeks a cost-effective way to evaluate the condition of these trees by means of Google Street View (GSV) imagery. Interestingly, comparison of the GSV survey information with data gathered and verified in the field showed a high degree of agreement in evaluating both genus and species. However, the approach was far less useful and reliable in the assessment of overall risk of failure or other associated damage. The ability of the method in identifying the overall crown risk, tree defects, and size was very limited. Ramírez and Kallarackal (2019) examine the status and ecological behaviour of Magenta Lilly Pilly tree (Syzygium paniculatum) a species widely introduced and planted in Bogotá, Colombia. This tree is now an important component of the Bogotá urban forest system and therefore it is informative to gain a better understanding of its contributions to potential ecosystem services like pollination, perching sites, and food for birds. Magenta offers a constant supply of nectar and pollen for bees though it seems that honeybees were the only insects recorded as visiting the fully-opened flowers. The native bird species, the great