Environmental Engineering Reference
In-Depth Information
Table 13.3 Tree species left in situ in farms in the Guinea savanna zone
Scientific name
Common name
Parkia biglobosa
West African locust bean
Adansonia digitata
Baobab
Ceiba pentandra
Kapok
Butyrospernum parkii (V. paradoxa)
Shea butter
Balanites aegyptica
-
Vitex doniana
Blackberry
Faidherbja albida
-
Afzelia africana
-
Diospynis mespiliformis
Ebony tree
Gerdenia spp.
-
Ficus spp.
-
Tamarindus indica
Tamarind
Lannea acida
-
Isoberline spp.
-
Sudan savanna zone
The Sudan savanna zone covers the north-eastern corner of the Upper East region
and the northern fringes of the Upper West region.
Traditional cropping systems
In general, agricultural land in the Sudan savanna zone is poor in quality
and limited in quantity. In the Upper East portion of the zone, compound
farming with continuous multiple cropping is common. The zone also
forms part of the millet-based system in which major crops such as millet,
sorghum, groundnut, and cowpea are cultivated. In addition, some minor
crops such as soya beans, maize, and a variety of vegetables are cultivated.
In the Upper West portion of the zone, cassava cultivation in compound
gardens is very prominent.
Traditional agroforestry systems
The most prominent practice in terms of traditional agroforestry is dispersed trees
on croplands. The most common tree species include neem , shea butter, and
Faidherbia albida .
Rationale for leaving trees in situ on farms
Table 13.4 lists tree species left in situ in farms. It is significant to note that the
tree species do not differ from those identified under the Guinea savanna zone.
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