KHAYA IVORENSIS PDF

  • No Comments

The tree is widely exploited for its very valuable timber, which is traded internationally, and plantations have been established in several countries. A high. Identity. Top of page. Preferred Scientific Name. Khaya ivorensis A. Chev. Preferred Common Name. African mahogany. International Common. Khaya ivorensis is distributed from Côte d’Ivoire east to Cameroon and south to Cabinda (Angola); it possibly also occurs in Guinea, Liberia.

Author: Tall Moogugami
Country: Central African Republic
Language: English (Spanish)
Genre: Software
Published (Last): 7 September 2007
Pages: 342
PDF File Size: 18.55 Mb
ePub File Size: 10.86 Mb
ISBN: 189-1-48733-183-2
Downloads: 53324
Price: Free* [*Free Regsitration Required]
Uploader: Mazudal

See Terms of Use for details. This may be partly due to some genetic resistance against Hypsipyla robusta attack. It generally air dries and kiln dries easily with little degrade, but some warping may occur due to the presence of interlocked grain. Retrieved from ” https: The wood of both species and that of Khaya ivrensis C.

The heartwood is pale pinkish brown to pale red, darkening to deep brown with a golden lustre upon exposure. In Brazil Khaya ivorensis is used for reforestation because of its resistance to Hypsipyla grandellathe major pest of Brazilian mahogany.

Natural regeneration of Khaya ivorensis after logging is often poor due to the often low density of mature trees in the forest and low regeneration rates in heavily disturbed forest. In a year-old plantation in Malaysia, trees had ivorensix average height of After 11 years average heights were Young trees have a slender stem and a small crown.

The boles float in water and thus can be transported by river. This page was last modified on 20 Decemberat It is threatened by habitat loss. It has been proposed for inclusion in CITES appendix I or II, but it has not been listed due to insufficient information on regeneration, extent of plantations and sustainability under current management regimes.

  LEGO 6985 PDF

Khaya ivorensis occurs scattered or in small groups in the forest, usually in low densities.

Khaya ivorensis

March Learn how and when to remove this template message. The wood of Khaya anthotheca is very similar to that of Khaya ivorensis. More extensive establishment of plantations of Khaya ivorensis is certainly desirable in tropical Africa, but Hypsipyla attack is kgaya serious drawback. The monoaxial state may persist to a height of 10 m. In recent years, the United States market has dominated the international trade in Khaya timber, especially as a substitute ivorenss American mahogany from Swieteniathe availability of which has declined considerably.

This page was last edited on 29 Marchat Trees of 30 years old may produce fruits and seeds abundantly. This article includes a list of referencesbut its sources remain unclear because it has insufficient inline citations.

Its woody fruit is slightly thinner than those of Khaya grandfoliola. The high buttresses at the base of the bole often necessitate the construction of a platform before felling can take place, or the removal of the buttresses before felling to recover more timber.

Planting the tree improves and enriches the soil, so many people use the tree for that as well. In Nigeria Khaya ivorensis trees are locally retained in cocoa plantations to serve as shade trees and ultimately for timber production. Once dry, the wood is fairly stable in service.

It is also used as fuelwood and for charcoal production.

The wood is in demand for making backs or sides of acoustic guitars as it is considered to have good acoustical characteristics. Ovorensis wood dust may cause irritation to the skin. Fruits mature in about 6 months. Khaya ivorensis wood is exported from West African countries in mixed consignments with other Khaya spp. In other projects Wikispecies.

  HUBERT MAUSS SACRIFICE PDF

IUCN Red List of Threatened Species

The grain is straight or interlocked, texture rather coarse. The bitter-tasting bark is widely used in traditional medicine. Navigation menu Personal khzya Log in Request account. Its bark is durable and is used to make many things such as furniture and paneling. Limonoids have been isolated from the bark and seeds. It is suitable for light construction, light flooring, ship building, vehicle bodies, handles, ladders, sporting goods, musical instruments, toys, novelties, precision equipment, carving, turnery and pulpwood.

Logs may have a spongy or brittle heart, and care is needed in felling and sawing operations. Roberty and Triplochiton scleroxylon K. In 26—year-old plantations in Malaysia, mean annual increments of 7. Regeneration of Khaya ivorensis is not promoted by large disturbances in the forest, but it benefits from small gaps.

Khaya ivorensis typically grows in drier climates.

It belongs to subfamily Swietenoideae and seems most closely related to Carapa and Swietenia. It does not have many demands to survive because it can tolerate some shade and short periods of flood during rainy seasons. More recently it has been planted successfully in 3 rows to mark the boundary of forestry reserves.

It has been suggested that the addition of seeds at favourable sites is a realistic option to obtain sufficient regeneration after logging. It grows many white flowers at the end of its branches. A natural forest tree with a bole diameter of 80 cm yields on average 6. The wood peels and slices well, producing an excellent quality of veneer.