Chapter 4
Tree species and land utilization types

A total of 31 species are included in the model. They are listed in Table 4.1, together with information on height, coppicing ability, nitrogen fixing ability, density, calorific value and utilization.

TABLE 4.1
Fuelwood species characteristics

Species	Mature height (m)	Coppicing ability	N-fixer	Density (gm/cm3)	Calorific value (Kcal/kg)	Utilization
Acacia albida	20–30					Fo
Acacia gerradii	10–16					Fo
Acacia nilotica	15–20	+ +		0.65–0.70	4800–4950	C, Fo, G, Ho, S
Acacia Senegal	2–5	+ +				C, Fo, G, T
Acacia tortilis	4–10					Fo
Bridelia micrantha	8–15					C, T
Calliandra calothyrsus	8–12	+ +		0.50–0.80	4500	Fo, Ho, M, Or
Calodendrum capense	10–20					C, Or, T
Cassia siamea	16–20	+ +		0.60–0.80	4500–4600	C, D, Fo*, H, M, Or, S, T, Wb
Casuarina equisetifolia	25–30	+		0.80–1.20	4950	C, D, Fo, P, T, Wb
Casuarina cunninghamiana	26–30					C
Conocarpus lancifolius	15–18			0.81		C, Fo, T
Croton megalocarpus	15–25					C, T
Cupressus lucitanica	26–30			0.45–0.48		-
Eucalyptus camaldulensis	30–40	+ +		0.55–0.85	4800	C, Fo, H, Ho, Or, P, S, T, Wb
Eucalyptus citriodora	30–40	+		0.65–1.10	4750	C, Fo, Ho, O, P, T
Eucalyptus globulus	40–50	+ +		0.55–0.78		C, P, Pl, T
Eucalyptus grandis	40–55	+ +		0.48–0.64		C, P, Pl, T
Eucalyptus microcorys	25–30	+ +		0.80–0.99		T
Eucalyptus microtheca	10–20	+		0.75–0.85		C, T
Eucalyptus saligna	35–45	+ +		0.48–0.64		C, O, P, Pl, T
Eucalyptus tereticornis	35–45	+ +		0.65–1.05	4800	C, Fo, Ho, O, P, Pl, S, Sb, T
Faurea saligna	5–10					C, Ho, T
Gliricidia sepium	6–15	+ +		0.40–0.65	4900	C, Fb, Fo*, Ho, M, Or, S, T
Grevillea robusta	25–35			0.64–0.66		C, Pl, T
Leucaena leucocephala	10–20	+ +		0.60–0.70	4200–4600	C, Fo*, M, Or, P, S, T
Oleo africana	3–6					C, Fr, T
Parkinsonia aculeata	4–5	+ +				Fo, Wb
Prunus africanum	25–30					T
Sesbania sesban	4–8	+ +		0.40–0.50	4500–4600	Fo
Tamarindus indica	20–30					C, T

Sources: Ndegwa 1988; Davidson 1985; Teel 1984; Skerman 1982; Goehl 1981; Webb, Wood and Smith 1980; FAO 1979.

Coppicing ability: + + = good;
+ = fair; no entry Indicates poor or none.

Utilization: C = charcoal;
D = dye;
Fb = firebreak;
Fo = fodder;
Fo* = fodder (but potentially toxic);
Fr = fruit;
G = gum;
H = hedge;
Ho = honey,
M = green manure;
O = oil;
Or = ornamental;
P = pulp (wood);
Pl = plywood, board, etc.;
S = shade;
Sb = shelterbelt;
T = timber, etc.;
Wb = windbreak.

Each tree species is considered for fuelwood production at three levels of inputs circumstances (low, intermediate and high). The attributes of the three input level production circumstances are listed in Table 4.2, and they form the basis of the definition of the land utilization types.

TABLE 4.2
Attributes of LUTs considered for fuelwood production