Effect of spacing on performance of teak at Longuza, Tanga, Tanzania

Sibomana, G., Makonda, F. B. S., Malimbwi, R. E., Chamshama, S. A. O. & Iddi, S, 1997. Effect of spacing on performance of teak at Longuza, Tanga, Tanzania. The performance of teak (Tectona grandis) planted at four square spacings (1.5, 2.0, 2.5 and 3.0 m) at Longuza, Tanga, in Tanzania was asse...

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Bibliographic Details
Published in:Journal of tropical forest science 1997-12, Vol.10 (2), p.176-187
Main Authors: Sibomana, G, Makonda, F.B.S, Malimbwi, R.E, Chamshama, S.A.O, Iddi, S. (Agriculture Sokoine Univ., P.O.Box 3009, Morogoro (Tanzania). Faculty of Forestry)
Format: Article
Language:English
Subjects:
ACLAREO
ARBOLES FORESTALES
ARBRE FORESTIER
Branches
Coniferous forests
CRECIMIENTO
CROISSANCE
CROP PERFORMANCE
DENSIDAD
DENSITE
DENSITY
DESEMPENO DE CULTIVOS
ECLAIRCISSAGE
ESPACEMENT
ESPACIAMIENTO
Forest management
FOREST TREES
GROWTH
PERFORMANCE DE CULTURE
Plantation forestry
Plantations
SPACING
TANZANIA
TANZANIE
TECTONA GRANDIS
THINNING
Timber
Trees
Tropical forestry
Tropical forests
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Summary:Sibomana, G., Makonda, F. B. S., Malimbwi, R. E., Chamshama, S. A. O. & Iddi, S, 1997. Effect of spacing on performance of teak at Longuza, Tanga, Tanzania. The performance of teak (Tectona grandis) planted at four square spacings (1.5, 2.0, 2.5 and 3.0 m) at Longuza, Tanga, in Tanzania was assessed. The variables studied were diameter at breast height (dbh), total height and height to the first live branch, survival, number of branches, basal area and volume production at ages 1, 3, 7 and 9 y, and basic density and some strenght properties at the age of 14 y. Results showed that dbh, number of branches, total height, basal area, basic density and some strength properties were significantly affected by spacing (p= 0.05). The diameter at breast height and number of branches increased with increasing spacing, while basal area decreased. All other variables were not significantly affected by spacing. A spacing of 3.0 m resulted in large diameter trees and later thinnings, with less a total volume per hectare. The current spacing of 2 m resulted in higher volume per hectare of small sized trees which could be improved by thinning. Its recommended to continue with this spacing and the current thinning schedule until information on the economic implications of alternative regimes is available.
ISSN:0128-1283