Wetland Development and Management in Malawi

Abstract

"Wetlands in Malawi, characterised by hydromorphic soils, and grass and sedge growth throughout the year are called dambos. Topographically dambos are usually broad, gentle sloping valleys occurring in the catchment area of Malawi's main rivers. Dambo soils are waterlogged at or near the surface for a large part of the year. These hydromorphic soils have a high watertable and are poorly drained resulting in poor aeration. They vary from coarse sands to heavy clays with a soil reaction ranging from acid to alkaline. Large variations also occur in the nutrient status and the structural stability of dambo soils. Vegetation, grass and sedge, sometimes shrubs or trees, grow even during the driest months of the year."