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Tanzania

Dynamics of water use in Tanzania by estimates of SHI (1998)

 
1960
1970
1980
1990
1995
2000
2010
2025
                 
Popultion, mln*
  
13.3
18.6
26.0
29.8
34.9
45.0
70.6
Irrigation area, th.ha**
  
38
120
150
176
207
283
424
Irrigation area, th.ha***
20
38
120
144
170
      
GNP, $US per capita****
  
107
109
100
        
Water withdrawal, km3
0.25
0.48
0.97
1.46
1.86
2.25
3.29
5.26
Water consumption, km3
0.14
0.27
0.61
0.96
1.18
1.39
1.94
2.97
notes: * - Source: United Nations Organization
** - 1961-1993 Source: FAO Production Yearbook, 1965-1994. Rome: FAO; 1995 – 2025 - SHI 1995 forecast

*** - Source: Gleick, 1998

**** - Source: World Bank / IMF – International Financial Statistics Yearbook, 1980-1994. N.Y.: World Bank/IMF

Water use of Tanzania (km3/year) by data of different authors

author
  
year
1 of meas.
1970
1990
1994
20251)
20252)
IIASA
withdrawal
1993
km3
  
0.96
  
WRI
withdrawal
1991-93
km3
0.48
        
WRI
withdrawal
1996-98
km3
    
1.2
    
WWDS 
withdrawal
1998
km3
  
1.02
  
2.7
2.0
UNSY
withdrawal
1992
km3
  
0.94
      
Gleick
withdrawal
1993
km3
0.48
        
Gleick
withdrawal
1998
km3
    
1.17
    
IrAf
withdrawal
1995
km3
    
1.16
    

notes: all estimates include water use for agriculture, industrial & domestic needs;

1) – scenario 1

2) – scenario 2

IIASA – Kulshreshtha S.N., 1993. World Water Resources & Regional Vulnerability: impact of future changes. Luxenburg: IIASA.

WRI – World Resources (1991-1992, 1992-1993, 1994, 1996, 1997-1998) – N.Y.: Oxford Univ. Press.

WWDS – World Water Resources. Demand & Supply: 1990 to 2025., 1998. Scenarious & Issues. Colombo:IWMI.

UNSY – United National Statistical Yearbook 1992, 39, 1993– N.Y..:UN.

Gleick, 1993 - Water in Crisis. A Guide to the World's Fresh Water Resources, 1993. Edited by P. Gleick. N.Y. Oxford Univ.Press.

Gleick, 1998 - The World’s Water. The Beneficial Report on Freshwater Resources 1998-1999, 1998, Peter Gleick, Washington, D.C. Covello, California.

IrAf – Irrigation in Africa in figures, 1995. Extract from report 7. Rome: FAO.