Neobalanocarpus

Last updated

Neobalanocarpus
Biggest Chengal tree.jpg
Scientific classification Red Pencil Icon.png
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Malvales
Family: Dipterocarpaceae
Subfamily: Dipterocarpoideae
Genus: Neobalanocarpus
P.S.Ashton
Species:
N. heimii
Binomial name
Neobalanocarpus heimii
(King) P.S.Ashton

Neobalanocarpus is a monotypic genus of plants in the family Dipterocarpaceae. The single species, Neobalanocarpus heimii, is a tropical hardwood tree. Common names for the tree and its wood products include chengal, chan ta khien, chi-ngamat, takian chan, and takian chantamaeo. The tree grows over 60 m (197 ft) tall. Chengal is considered the number one wood (classified as heavy hardwood) of Malaysia and export of logs is prohibited due to its scarcity. The species is listed as endangered on the IUCN Red list. [1]

Contents

Distribution

Chengal tree, Peninsula Malaysia, 2005 1500 year old Chengal tree.jpg
Chengal tree, Peninsula Malaysia, 2005

Neobalanocarpus heimii is endemic to the Malay Peninsula and grows under quite a range of conditions of soils and topography in Peninsular Malaysia (and southern Thailand) from low flat semi-swamp to hills, but appears to thrive best on undulating land with light sandy soils. See Wildlife of Malaysia. [2] It is now extinct in Singapore, [3] and possibly extinct in Thailand. [4]

Description

Neobalanocarpus heimii can grow to be a large tree over 60 metres tall, with a straight, unbranched trunk, averaging 90 cm in diameter, and with obvious supporting buttresses. Its simple, leathery leaves are arranged alternately, and are elliptical to lanceolate, between 7 and 17 cm in length, and 2.5 and 5 cm in width. [4]

It is widespread in mixed dipterocarp forests, growing to altitudes up to 1,000 metres (3,300 ft), preferring soils that are friable and well-drained land. [4]

Uses

Chengal house in the museum in Kuala Terengganu, 2005 Chengal House.jpg
Chengal house in the museum in Kuala Terengganu, 2005
Chengal in traditional Malay boatbuilding on Duyong Island, 2004 Traditional Malay boat building.jpg
Chengal in traditional Malay boatbuilding on Duyong Island, 2004

Chengal has been used for furniture making, house and boat-building. [5] [6] Despite its extreme strength and hardness, chengal is highly flexible before it is fully cured, making it suitable for plank bending (boat building). It is also highly resistant to rot, fungi and mildew. In addition, chengal has a relatively low shrinkage ratio [7] (only inferior to teak), which makes it excellent for applications where it undergoes periodic changes in moisture. Chengal, like teak, has the unusual properties of being both an excellent structural timber for framing, planking, etc., while at the same time being easily worked and finished to a high degree.

Chengal may be varnished but does not necessarily need a "finish". The wood naturally weathers to a silver-grey colour similar to teak. It can be easily planed, drilled or turned. Nailing is very difficult and the wood often has to be pre-drilled.[ citation needed ]

Durability

Chengal in a sawmill in Terengganu state, 2003 Chengal in the sawmill - 2003.jpg
Chengal in a sawmill in Terengganu state, 2003

The timber is classified as naturally durable and is normally very resistant to termite attack [8] and fungal infestation. Under graveyard test conditions, untreated specimens of size 50 mm × 50 mm × 600 mm lasted 9 years. Treated specimen of the same size and test conditions lasted about 19 years. Untreated railway sleepers of size 238 mm × 125 mm × 1,950 mm laid under severe environmental conditions gave an average service life of 19 years. Termites do not attack the sound timber. [2]

Related Research Articles

<span class="mw-page-title-main">Wood</span> Fibrous material from trees or other plants

Wood is a structural tissue found in the stems and roots of trees and other woody plants. It is an organic material – a natural composite of cellulose fibers that are strong in tension and embedded in a matrix of lignin that resists compression. Wood is sometimes defined as only the secondary xylem in the stems of trees, or it is defined more broadly to include the same type of tissue elsewhere such as in the roots of trees or shrubs. In a living tree it performs a support function, enabling woody plants to grow large or to stand up by themselves. It also conveys water and nutrients between the leaves, other growing tissues, and the roots. Wood may also refer to other plant materials with comparable properties, and to material engineered from wood, or woodchips or fiber.

<span class="mw-page-title-main">Lumber</span> Wood that has been processed into beams and planks

Lumber is wood that has been processed into uniform and useful sizes, including beams and planks or boards. Lumber is mainly used for construction framing, as well as finishing. Lumber has many uses beyond home building. Lumber is sometimes referred to as timber as an archaic term and still in England, while in most parts of the world the term timber refers specifically to unprocessed wood fiber, such as cut logs or standing trees that have yet to be cut.

<i>Eucalyptus marginata</i> Species of plant in the family Myrtaceae endemic to the south-west of Western Australia

Eucalyptus marginata, commonly known as jarrah, djarraly in Noongar language and historically as Swan River mahogany, is a plant in the myrtle family, Myrtaceae and is endemic to the south-west of Western Australia. It is a tree with rough, fibrous bark, leaves with a distinct midvein, white flowers and relatively large, more or less spherical fruit. Its hard, dense timber is insect resistant although the tree is susceptible to dieback. The timber has been utilised for cabinet-making, flooring and railway sleepers.

<span class="mw-page-title-main">Teak</span> Tree species native to south and southeast Asia

Teak is a tropical hardwood tree species in the family Lamiaceae. It is a large, deciduous tree that occurs in mixed hardwood forests. Tectona grandis has small, fragrant white flowers arranged in dense clusters (panicles) at the end of the branches. These flowers contain both types of reproductive organs. The large, papery leaves of teak trees are often hairy on the lower surface. Teak wood has a leather-like smell when it is freshly milled and is particularly valued for its durability and water resistance. The wood is used for boat building, exterior construction, veneer, furniture, carving, turnings, and other small wood projects.

<i>Picea mariana</i> North American species of spruce tree

Picea mariana, the black spruce, is a North American species of spruce tree in the pine family. It is widespread across Canada, found in all 10 provinces and all 3 territories. It is the official tree of the province of Newfoundland and Labrador and is that province's most numerous tree. The range of the black spruce extends into northern parts of the United States: in Alaska, the Great Lakes region, and the upper Northeast. It is a frequent part of the biome known as taiga or boreal forest.

<i>Pterocarpus indicus</i> Species of legume

Pterocarpus indicus is a species of Pterocarpus native to southeastern Asia, northern Australasia, and the western Pacific Ocean islands, in Cambodia, southernmost China, East Timor, Indonesia, Malaysia, Papua New Guinea, the Philippines, the Ryukyu Islands, the Solomon Islands, Thailand, and Vietnam.

<i>Glyptostrobus pensilis</i> Species of conifer

Glyptostrobus pensilis, known in Chinese as 水松, and also Chinese swamp cypress, is an endangered conifer, and the sole living species in the genus Glyptostrobus.

<i>Intsia bijuga</i> Species of tree in the family Fabaceae

Intsia bijuga, commonly known as Borneo teak, Johnstone River teak, Kwila, Moluccan ironwood, Pacific teak, scrub mahogany and vesi, is a species of flowering tree in the family Fabaceae, native to the Indo-Pacific. It ranges from Tanzania and Madagascar east through India and Queensland, Australia, Papua New Guinea to the Pacific islands of Fiji and Samoa. It grows to around 50 metres tall with a highly buttressed trunk. It inhabits mangrove forests. Intsia bijuga differ from Intsia palembanica in the number of leaflets that make up their compound leaves.

<i>Pterocarpus angolensis</i> Species of legume

Pterocarpus angolensis is a species of Pterocarpus native to southern Africa, in Angola, Mozambique, Namibia, South Africa, Eswatini, Tanzania, Democratic Republic of the Congo, Zimbabwe, and Zambia. It is a protected tree in South Africa. The name Kiaat, although Afrikaans, is sometimes used outside South Africa as well. In Zimbabwe, depending on what region you are in, it is known as Mukwa or Mubvamaropa.

<i>Dalbergia sissoo</i> Species of deciduous tree

Dalbergia sissoo, known commonly as North Indian rosewood or shisham, is a fast-growing, hardy, deciduous rosewood tree native to the Indian subcontinent and southern Iran. D. sissoo is a large, crooked tree with long, leathery leaves and whitish or pink flowers.

<i>Baikiaea plurijuga</i> Species of legume

Baikiaea plurijuga, known as African teak, Mukusi, Rhodesian teak, Zambian teak or Zambesi redwood, is a species of Afrotropical tree from the legume family, the Fabaceae from southern Africa.

<i>Microberlinia bisulcata</i> Species of legume

Microberlinia bisulcata is a species of plant in the family Fabaceae, a lowland rainforest tree that is found only in Cameroon. It is threatened by habitat destruction and exploitation. Common names include African zebrawood, tigerwood, zebrano and zingana.

<i>Pericopsis elata</i> Species of flowering plant

Pericopsis elata is a species of flowering plant in the family Fabaceae and is known by the common names African teak, afromosia, afrormosia, kokrodua and assamela.

<i>Eusideroxylon zwageri</i> Species of tree

Eusideroxylon zwageri is a rare timber tree native to the Brunei, Indonesia, Malaysia and Philippines region. It is known colloquially in English as Bornean ironwood, billian, or ulin.

<i>Eusideroxylon</i> Genus of flowering plants

Eusideroxylon is a genus of evergreen trees of the family Lauraceae. The genus is monotypic; it includes one accepted species, Eusideroxylon zwageri. It is present in coastal and montane rainforests of Southeast Asia, and in laurel forest habitat. Eusideroxylon are hardwood trees reaching up to 50 metres in height with trunks over 2 metres in diameter, producing commercially valuable timber. The wood of E. zwageri is impervious to termites, and can last up to 100 years after being cut. Due to extensive logging, it is listed as vulnerable in the IUCN Red List of IUCN, and conservation efforts are underway, with several countries banning imports.

<i>Milicia excelsa</i> Species of tree

Milicia excelsa is a tree species from the genus Milicia of the family Moraceae. Distributed across tropical Central Africa, it is one of two species yielding timber commonly known as African teak, iroko, intule, kambala, moreira, mvule, odum and tule.

<i>Vatica harmandiana</i> Species of tree

Vatica harmandiana, also known by the synonym Vatica cinerea, is a species of plant in the family Dipterocarpaceae. It is a smallish tree native to Southeast Asia. It is the most common plant species in certain types of mature woodland habitat within its range and is furthermore common in disturbed secondary forests covering much of its range, nonetheless it was considered, along with most Dipterocarpaceae, to be endangered by the IUCN between 1998 and 2017. It is usually not commercially harvested except for local use.

<i>Dysoxylum fraserianum</i> Species of tree

Dysoxylum fraserianum, commonly known as rosewood or rose mahogany, is a medium-sized to large tree native to New South Wales and Queensland. It is widely used with the purpose of street design and to provide shade in the eastern suburbs of Sydney. Rosewood ranges from the rainforest around eastern Australia from Bundaberg in Queensland to Wyong in New South Wales. At maturity, it can reach a height of 57 metres (200 ft). It is generally known for its strong scent of rose from its bark.

<span class="mw-page-title-main">Plantation teak</span>

Plantation teak is a tropical hardwood tree from the genus Tectona, endemic to Southeast Asia that is exclusively planted for the purpose of forestry management, for either commercial timber plantations or ecological restoration. Although the genus Tectona is native to the tropical regions of Southeast Asia, primarily Indonesia, Myanmar, India, Bangladesh and Thailand, the cultivation of plantation teak is economically viable in other tropical regions such as Central America.

<i>Strombosia pustulata</i> Species of rainforest tree in West and Central Africa

Strombosia pustulata is a species of tree in the family Olacaceae. It is native to the rainforests of tropical West and Central Africa. Common names for this tree include itako in Nigeria, afina in Ghana, poé in Abé spoken in Côte d'Ivoire and mba esogo in Equatorial Guinea.

References

  1. 1 2 Pooma, R.; Barstow, M.; Newman, M.F. (2017). "Neobalanocarpus heimii". IUCN Red List of Threatened Species . 2017: e.T32314A2813845. doi: 10.2305/IUCN.UK.2017-3.RLTS.T32314A2813845.en . Retrieved 16 November 2021.
  2. 1 2 100 Malaysian Timbers, published by Malaysian Timber Industry Board, 1986, p16/17
  3. Marzalina, M.; Nashatul, Z.N.A.; Jayanthi, N. "EX SITU CONSERVATION EFFORTS FOR Neobalanocarpus heimii IN MALAYSIA". www.fao.org. Forest Research Institute Malaysia. Retrieved 3 May 2020.
  4. 1 2 3 "Neobalanocarpus (PROSEA) - PlantUse English". uses.plantnet-project.org. Retrieved 2 May 2020.
  5. Othman, Sulaiman (Dato' Haji (1994). The Crafts of Malaysia. ISBN   9789813018075.}
  6. Vaccari, John A. (9 July 2002). Materials Handbook. ISBN   9780071501842.
  7. Desch, Harold Ernest (1941). "Manual of Malayan Timbers".
  8. Jacobson, Martin (1975). "Insecticides from Plants, a Review of the Literature, 1954-1971".