Table 17 Dynamics of fresh water use over the kinds of economic activities
in
South America
,
km
3
/yr
| Water user |
|
|
||||||||||
| 1900 | 1940 | 1950 | 1960 | 1970 | 1980 | 1990 | 1995 | 2000 | 2010 | 2025 | ||
| Population, mln |
-
|
-
|
110
|
144
|
188
|
240
|
294
|
326
|
356
|
413
|
494
|
|
| Irrigation area, mln ha |
1.2
|
2.2
|
4.81
|
4.97
|
6.24
|
7.9
|
8.76
|
9.06
|
9.35
|
10
|
10.4
|
|
| Agriculture |
13.2
|
28.1
|
40.6
|
51.1
|
61.3
|
77.5
|
92.8
|
97.9
|
101
|
107
|
115
|
|
|
10.3
|
21.3
|
30.1
|
36.8
|
44.0
|
54.6
|
64.7
|
68.3
|
70.8
|
74.8
|
80.9
|
||
| Public Supply |
0.7
|
2.6
|
4.7
|
6.5
|
10.3
|
15.9
|
25.9
|
28.8
|
32.1
|
42.6
|
58.9
|
|
|
0.2
|
0.6
|
0.8
|
1.0
|
1.5
|
2.2
|
3.4
|
3.6
|
3.7
|
4.5
|
5.6
|
||
| Industrial |
1.2
|
1.8
|
3.9
|
7.3
|
11.3
|
15.9
|
22.3
|
25.8
|
30.3
|
42.2
|
61.9
|
|
|
0.2
|
0.3
|
0.6
|
1.0
|
1.5
|
1.9
|
2.5
|
2.9
|
3.4
|
5.2
|
9.9
|
||
| Reservoirs |
0.0
|
0.1
|
0.2
|
0.7
|
4.1
|
8.0
|
11.3
|
14.6
|
18.0
|
21.2
|
24.0
|
|
| Total |
15.1
|
32.6
|
49.3
|
65.6
|
87.0
|
117
|
152
|
167
|
182
|
213
|
260
|
|
|
10.8
|
22.3
|
31.7
|
39.6
|
51.1
|
66.7
|
81.9
|
89.4
|
96.0
|
106
|
120
|
||
Note: Nominator – water withdrawal, denominator – water consumption.