Forest Inventory, Growth and Yield Studies in Nigeria : National Forest Inventories

1993

19 Lit. Ang.

Unselbständiges Werk

3453

200103944

The national forest estate of Nigeria covers about 10 percent of the total land area, and comprises four fifths of savanna and one fifth of high forest. Forest plantations are much more productive than the natural vegetation types, but account for only 2 percent of the national forest estate. Previous inventories have been more or less localised with the exeption of the indicative high forest inventory of 1973-1977, which was accompanied by a national vegetation/land use survey with Side Looking Airborne Radar. Little has been achieved on the inventory of forest plantations but considerable information and data are available from sample plot studies, volume and yield table preparation, spacing and thinning trials as well as studies on site-productivity and stand dynamics. Problems confronting long-term forest inventory, growth and yield studies are highlighted in the paper and recommendations made for the future.