Table 1.1 The benefits from Acacia in the rural economy (after Seif el Din 1991)
Wood products |
Non-wood products |
Services |
||
Domestic |
Commercial |
Domestic |
Commercial |
|
firewood |
firewood |
browse |
soil fertility |
|
charcoal |
charcoal |
traditional |
environment |
|
medicines |
protection |
|||
domestic utensils |
gum |
gum |
game refuge |
|
tool handles |
tannin |
tannin |
ornamental |
|
construction poles |
construction timber |
fibre |
||
handicrafts |
bee forage |
|||
fish poison |
Table 2.1.1 Acacia species used for firewood and charcoal (Boudy, 1950; Palmer and Pitman, 1972, Kinyanjui, 1985; Maydell, 1986; Riley and Brokensha, 1988; Bird and Shepherd, 1989; Bhandari, 1990; Guinko, 1991; Hines and Eckman, 1993; Nahal, 1993)
Species |
Properties |
AFRICA |
|
A. amythethophylla |
occasionally used for firewood in the Sahel |
A. ataxacantha |
preferred wet season firewood by the Mbere since wood does not readily absorb
water and will maintain flammability; occasionally used in the Sahel |
A. brevispica |
preferred wet season firewood by the Mbere since wood does not readily absorb
water and will maintain flammability |
A. caffra |
provides a good fuel for brick kilns |
A. drepanolobium |
Mbeere women use the dry branches to ignite 'trot' kindling for a steady burn of
charcoal when firing pottery |
A. dudgeoni |
occasionally used for firewood and charcoal in the Sahel |
A. ehrenbergiana |
occasionally used for firewood in the Sahel |
A. erioloba |
widely used for fuel, especially in the Kimberley area of South Africa |
A. erubescens |
a very hot fuel source |
A. erythrocalyx. |
occasionally used for firewood in the Sahel |
A. gerrardii |
a preferred firewood in Tanzania high quality charcoal |
A. gourmaensis |
occasionally used for firewood in the Sahel |
A. grandicornuta |
used for fuel in southern Africa |
A. gummifera |
used for firewood and charcoal in southern Morocco |
A. hockii |
used for firewood and charcoal in Kenya |
A. karroo |
used for firewood and charcoal in southern Africa |
A. laeta |
an important source of firewood and high quality charcoal in the Sahel |
A. lahai |
a preferred species for firewood and charcoal in Tanzania |
A. macrostachya |
occasionally used for firewood in the Sahel |
A. mellifera sensu lato |
slow-burning firewood valued by the Mbeere for cooking; a preferred firewood in
Tanzania, excellent charcoal |
A. nigrescens |
favoured fuel for tobacco barns and charcoal in N Kenya |
A. nilotica sensu lato |
an important source of firewood and charcoal in the Sahel. Bark preferred by
Mbeere for firing pottery; a preferred source of firewood and good quality charcoal in
Tanzania; calorific value of heartwood 4950 kcal/kg, sapwood 4800 kcal/kg. |
subsp. adstrigens |
an important source of firewood and charcoal in the Sahel |
subsp. nilotica |
an important source of firewood and charcoal in the Sahel |
subsp. tomentosa |
an important source of firewood and charcoal in the Sahel |
A. polyacantha |
|
subsp. campylacantha |
occasionally used for firewood and charcoal in the Sahel; a preferred firewood in
Tanzania |
A. reficiens |
|
subsp. misera |
preferred fuelwood for breadmaking in Somalia |
A. robusta |
little value for fuel |
A. senegal |
an important source of firewood and charcoal in the Sahel |
A. seyal |
|
var. fistula |
good charcoal |
var. seyal |
an important source of firewood {firewood susceptible to insect attack if not
used soon after cutting}and an occasional to important source of good quality charcoal in
the Sahel |
A. sieberiana |
an occasional source of firewood and charcoal in the Sahel; a preferred firewood
in Tanzania |
A. tortilis sensu lato |
an important source of firewood and charcoal in the Sahel; a preferred source of
firewood and good quality charcoal in Tanzania; calorific value 4400 kcal/kg |
subsp. heterocantha |
firewood |
subsp. raddiana |
a preferred fuelwood in the Sahel |
subsp. spirocarpa |
firewood and charcoal |
A. xanthophloea |
a preferred firewood in Tanzania; makes good charcoal |
F. albida |
an occasional source of firewood and charcoal in the Sahel; a preferred source of
firewood and charcoal in Tanzania; calorific value 4700 kcal/kg |
INDIA |
|
A. jacquemontii |
firewood and charcoal; charcoal of high calorific value, favoured by gold-,
silver- and iron-smiths. charcoal suitable for gunpowder |
A. leucophloea |
used for fuel |
A. modesta |
used for fuel |
A. nilotica |
|
subsp. indica |
used for fuel |