Agricultural Sciences

Biodiversity of West African Forests: An Ecological Atlas of by L. Poorter, F. Bongers, F.N'. Kouamý, Visit Amazon's W.D.

By L. Poorter, F. Bongers, F.N'. Kouamý, Visit Amazon's W.D. Hawthorne Page, search results, Learn about Author Central, W.D. Hawthorne,

The rain forests of West Africa were special as one of many world's hotspots of biodiversity. They expand from Ghana to Senegal and are often called the higher Guinean forests. as a result of their remoted place, they harbor a lot of infrequent and endemic animal and plant species.

This e-book specializes in the biodiversity and ecology of those forests. It analyzes the standards that provide upward push to biodiversity and constitution tropical plant groups. it's also an atlas with ecological profiles of infrequent plant species and massive trees species.

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Extra info for Biodiversity of West African Forests: An Ecological Atlas of Woody Plant Species

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Substrate Edaphic conditions are of paramount importance in determining the forest-savanna equilibrium at a regional scale especially in areas where climate conditions are intermediate. In west-central Ghana, the limit between continuous forest and forest savanna mosaic is congruent with substrate: savanna dominates on Voltaian rocks and the forest dominates on the Birrimian basement complex, on which soils are richer in clay and nutrients (Swaine et al. 1976, Swaine 1992). A similar situation is found in Côte d’Ivoire, at the eastern side of the V-Baoulé where the boundary between continuous rainforest and forestsavanna mosaic corresponds to the boundary between schistous and granitic substrates, the former giving rise to soils being also richer in clay and having thus a better water-holding capacity (Spichiger 1975).

The block shows a coexistence of industrial along with traditional land use. The Abié block north of the Yapo “forêt classée”. Forest cover changed from 129 km2 in 1958 to 139 km2 in 1990 to 39 km2 in 2000. This block was considered completely cleared on the 1958 maps. It is, however, the block with the highest forest cover in the rural areas. Land occupation according to the relief is clearly visible on the images: forests are found on the tops of slopes and rice and taro fields on low-lying lands.

G. rejuvenation) and to forbid agricultural practice in “forêts classées”. The PAM program for relocation of farmers has not shown results because of mismanagement of the budget available for that. Also the primary forests managed by the European Union’s “coastal forests management project” show continued deforestation. For the survival of the remnant forest fragments, classified or not, a better exploitation of agricultural lands in the surroundings is needed. In fact, subsistence farming and large extensively used plantations, both huge consumers of space and manpower, should improve their yields.

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