Useful Tree Species for Eastern Africa

a species selection tool based on the VECEA Map



Halophytic vegetation (Z)

Description

Halophytes are a relatively small group of plant species that can grow on saline soils. The most typical halophytes absorb soluble salts (especially Sodium chloride) and tolerate high concentrations in the cell sap of their leaves. The vegetation on saline soils is dominated by halophytes and is physiognomically varied, including halophytic grassland, wooded grassland, shrubland and bushland (White 1983 pp. 55 and 266).

In parts of East Africa, salts that are derived from volcanic deposits rich in Sodium are deposited in lake basins and river valleys. As a consequence, halophytic vegetation occurs in most of the lake basins of the Eastern Rift (especially Lakes Bogoria, Elementeita, Eyasi, Nakuru, Magadi, Manyara, Natron, Rukwa and Turkana). Halophytic vegetation also occurs around Lake Mweru Wantipa (Zambia), a lake that also lies in a down-faulted depression with internal drainage (White 1983 pp. 266 - 267). In VECEA map, lakes with halophytic shoreline vegetation were mapped as the subtype “Zw”.


Ib Friis and Sebsebe Demissew 2006; Figure 11.2 in VECEA Volume 5

Plant species

The main species recorded to occur within this vegetation type are listed below. Clicking the name of any of these species will open the page for that species on the Agroforestry Species Switchboard. Between brackets the English vernacular name of the species and the documented country distribution of the species (B=Burundi, E=Ethiopia, K=Kenya, M=Malawi, R=Rwanda, T=Tanzania, U=Uganda, Z=Zambia) is provided.

Based on information on species presence in national manifestations of vegetation types, each species was classified as a regionally dominant, characteristic, present or marginal species for a vegetation type (Read more ...)

Products and environmental services of tree species

Documented products and environmental services for the tree species occurring in this vegetation type (Z) are listed below. Clicking the name of any of these species will open the page for that species on the Agroforestry Species Switchboard. Between brackets information is given on the status of each species ('dom' indicates dominant species, 'cha' characteristic species, 'pre' other species and 'mar' species of marginal occurrence), the English vernacular name of the species and the documented country distribution of the species (B=Burundi, E=Ethiopia, K=Kenya, M=Malawi, R=Rwanda, T=Tanzania, U=Uganda, Z=Zambia).

Wood

Human consumption

Animal consumption

Environmental services

Other products

For more detailed information about the species occurrences see this excel workbook. It provides country specific information on species composition for this vegetation type. It also allows you to select a subset of useful tree species to provide desired products and services. For each species links to a number of websites / databases with information about this species are provided as well.

Conservation status

The table shows the area (km2) of the vegetation type and the percentage of this area explicitly designated for biodiversity, species or landscape protection (A) and areas designated for both protection and sustainable use objectives (B). Only the nationally designated protected areas were included. Please note that the Zw are the Halophytic lakes, i.e., the areas presented below include the surface area of the lakes.

PNV Area (km2) A (%) B (%)
Z 6,087 16.70 9.10

A) Include the IUCN categories I - IV; B) Include the IUCN categories V - VI and the protected areas without IUCN classification. Read more

Links

Species selection tool
Other vegetation types
http://vegetationmap4africa.org
Documentation

Citation and terms of use

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