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forests still cover most of the mountain slopes between 700 and 1300m above sea level, although some tree species have suffered from overexploitation in the past. The open forest of the endemic tree, le Tamarin des hauts (Acacia heterophylla), is found
between 1300 and 1800m above sea level, in the highest ranges. The biology of this tree and the successful techniques devised by the Reunion Forest Service to ensure its regeneration after forest fires or landslides are described.

Property rights and rural resource management : the case of tree crops in West Africa in Systèmes de production agricole en Afrique tropicale.

Tree management as part of two farming systems in the wet forest zone (Ivory Coast)

Agriculture and forestry are interdependant. The planting of trees in shelter belts and plantations can ameliorate the climate by reducing the effect of dessicating winds, so improving the soil and crop yields. (EMS).

Although eighty per cent of the land area of Nigeria is covered with savanna woodland, there is a shortage of wood and wood products. The Savanna Forestry Research Project has studied the conditions necessary for increased tree growth. Some problems

A further 12 species of tree brave been identified from leaf fossils preserved in terminal Pleistocene-early Holocene lacustrine sediments exposed above the present shore of Lake Bosumtwi. Our earlier finding has been confirmed that forest

the long term rate of shrub and tree encroachment. Significant reductions in tall grass cover attributed to sustained overgrazing have occurred. (AJC).

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