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University of Khartoum (2003)

An approach for study wood supply from Acacia seyal stands on Gadaref State, A case study : Wad Elkheseid natural forest reserve

Osman, Aamir

Titre : An approach for study wood supply from Acacia seyal stands on Gadaref State, A case study : Wad Elkheseid natural forest reserve

Auteur : Osman, Aamir

Université de soutenance : University of Khartoum

Grade : Master of Science (MS) 2003

Résumé
The general argument for natural forest management for timber is that, by conferring relatively more economic value on forests than alternative forest uses. Natural forest management for timber is necessary, though imperfect, means by which extensive areas of forest cover and a large measure of their biological diversity would be maintained outside nature reserve. This research is an attempt to design a model for managing natural forests on sustainable basis (taking Wad Elkhesheid Forest as a smple). Research method applied is an enumeration method based on measueable parameters (height, diameter at breast height and form factor) for investigating the relationship between diameter and height, and consequently determining the volume. .The relationship between height (dependent variable) and diameter at breast height (independent variable) of Talih trees was statistically significant at (P < 0.0001) for the equation : h = 3.3526+ 0.2913 dbh (r2 = 0.66 %), where ; h = average height and dbh = diameter at breast height. The form factor of Talih trees growing in the study area showed a great variation ranging between 0.22 % to 0.68 %. Therefore, the form factor was used as a parameter for establishing relationship with height and diameter at breast height.

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