91
4.3. Total ecological footprint of each wilaya
The computation of the EF by sector of activity provided a total EF of each wilaya, describing
three components: material, energy, and built land. Tables 31 and 32 summarize the results
and illustrate the difference in the EF between both wilayas, Algiers and Tipaza.
Table 31. The ecological footprint of activities in the wilaya of Algiers and Tipaza (2015)
Activity
sector
Algiers
Tipaza
Material
gha
Energy
10
3
gha
Built land
gha
Material
gha
Energy
10
3
gha
Built land
gha
Fishing
15338.5
11. 95
176.78 275 030.4
1.49
15.29
Food
823 000
14.0
2.36 1 015 000
20.9
16.1
Forest
3 265.3
[-]
[-]
856.7
[-]
[-]
Water
[-]
2.22
[-]
[-]
6.36
[-]
Urbanization
[-] 20 227.1
1461.7
[-]
279.9
85.3
Urban waste
[-]
488.6
89.51
[-] 92921.2
39.16
Table 32. The total ecological footprint of the wilaya of Algiers and Tipaza (2015)
Total wilaya
EF (gha)
EF
(gha/habitant)
Algiers
Material
840 402.6
0.3
Energy
61 292 597.5
19.4
Built land
1 730.35
5.48*10
-4
Total EF
62 137 566.4
19.7
Population of
Algiers
Inhabitant
3 154 792
[-]
Tipaza
Material
1 312 945.9
2.0
Energy
1 358 633.3
2.1
Built land
155.85
2.35*10
-4
Total EF
2 671 814.2
4.0
Population of Tipaza Inhabitant
661 247
[-]
The wilaya of Algiers has reached a total EF of 62 million hectares for a population of over
three million inhabitants. Consequently, the latter’s demand on hypothetical land required to
sustain its resident's activity is 23 times that of the wilaya of Tipaza, whose population is
almost five times smaller.
The EF of the wilaya of Algiers is represented at 99% by the energy component, demonstrating
a more important economic activity. This is reflected in the urban planning and waste
management sectors, where both sectors have high energy consumption associated with
transportation operations. This energy is described as "operational" energy, thus visible in the
energy balance of the urban waste management activity. Conversely, energy consumed during