Miombo
Miombo woodland is a tropical and subtropical grasslands, savannas, and shrublands biome located in central and southern tropical Africa. It includes three woodland savanna ecoregions characterized by the dominant presence of Brachystegia and Julbernardia genera of trees, and has a range of climates ranging from humid to semi-arid, and tropical to subtropical or even temperate. The trees characteristically shed their leaves for a short period in the dry season to reduce water loss and produce a flush of new leaves just before the onset of the wet season with rich gold and red colours masking the underlying chlorophyll, reminiscent of autumn colours in the temperate zone.
Miombo woodlands extend across south-central Africa, running from Angola in the west to Tanzania in the east, including parts of Democratic Republic of the Congo, Malawi, Mozambique, Zambia, and Zimbabwe. They are bounded on the north by the humid Congolian forests, on the northeast by Acacia–Commiphora bushland, and on the south by semi-arid woodlands, grasslands, and savannas.
The woodland gets its name from miombo, the Bemba word for Brachystegia species. Other Bantu languages of the region, such as Swahili and Shona, have related if not identical words, such as Swahili miyombo. These woodlands are dominated by trees of subfamily Detarioideae, particularly miombo, Julbernardia and Isoberlinia, which are rarely found outside miombo woodlands.
Miombo woodlands can be classified as dry or wet based on the per annum amount and distribution of rainfall. Dry woodlands occur in those areas receiving less than 1000 mm annual rainfall, mostly in Zimbabwe, central Tanzania, eastern and southern Mozambique, Malawi, and southern Zambia. Wet woodlands are those receiving more than 1000 mm annual rainfall, mainly located in northern Zambia, eastern Angola, central Malawi, and western Tanzania. Wet miombo generally has a taller canopy, more tree cover, and greater species diversity than dry miombo.
Ecoregions
Three ecoregions are currently recognized.- Angolan wet miombo woodlands – Angola
- Central Zambezian wet miombo woodlands – Angola, Burundi, Democratic Republic of the Congo, Malawi, Tanzania, and Zambia
- Dry miombo woodlands – southeastern Angola, Malawi, Mozambique, central and southern Tanzania, Zambia and Zimbabwe. The dry miombo woodlands ecoregion includes the Eastern miombo woodlands and Southern miombo woodlands ecoregions previously delineated by the World Wide Fund for Nature.
Flora and fauna