Table 17 Dynamics of fresh water use over the kinds of economic activities
in Africa,
km3/yr
| Water user | Assessment | Forecast | ||||||||||
| 1900 | 1940 | 1950 | 1960 | 1970 | 1980 | 1990 | 1995 | 2000 | 2010 | 2025 | ||
| Population, mln |
220
|
273
|
354
|
480
|
642
|
709
|
871
|
1157
|
1595
|
|||
| Irrigation area, mln ha | ||||||||||||
| Agriculture |
39.4
|
46.5
|
50.5
|
79.8
|
92.9
|
105
|
131
|
138
|
144
|
161
|
179
|
|
|
27.2
|
32.5
|
37.0
|
59.0
|
70.2
|
79.7
|
96.9
|
102
|
107
|
119
|
133
|
||
| Public Supply |
0.78
|
1.86
|
3.91
|
5.70
|
8.41
|
10.7
|
13.3
|
17.7
|
22.1
|
35.4
|
60.5
|
|
|
0.18
|
0.34
|
0.62
|
0.84
|
1.15
|
1.51
|
1.95
|
2.40
|
2.93
|
4.45
|
7.38
|
||
| Industrial |
0.49
|
0.84
|
1.44
|
2.70
|
6.54
|
7.69
|
9.19
|
9.60
|
10.2
|
12.4
|
20.2
|
|
|
0.09
|
0.12
|
0.20
|
0.36
|
0.84
|
1.07
|
1.14
|
1.25
|
1.35
|
1.95
|
2.85
|
||
| Reservoirs |
0
|
0
|
0
|
1.05
|
14.8
|
42.0
|
50.0
|
54.0
|
58.0
|
66.0
|
77.0
|
|
| Total |
40.7
|
49.2
|
55.8
|
89.2
|
123
|
166
|
203
|
219
|
235
|
275
|
337
|
|
|
27.5
|
32.9
|
37.8
|
61.3
|
87.0
|
124
|
150
|
160
|
170
|
191
|
220
|
||