PAST AND FUTURE TREND OF IRRIGATION DEVELOPMENT IN THREE CATCHMENTS OF THE WHITE VOLTA SUB-BASIN - Sustainable Irrigation Development in the White Volta Sub-Basin - page 164

Table 7.3: Extrapolated irrigated areas from satellite images

Catchment Anayari Catchment (ha) Atankwidi Catchment Yarigatanga Catchment

(ha) (ha)

Considered
A rea (%)

100% 100% 100%

Irrigation
Type

Government-
led Irrigation

Private-led
Irrigation

Government-
led Irrigation

Private-led
Irrigation

Government-
led Irrigation

Private-led
Irrigation

2 003 200 760 n/a n/a n/a n/a

2 005 217 840 2 191 174 41

2 007 147 970 2 230 348 208

2010 133 966 2 224 379 230

7.3.3 Past Trend of Irrigation Development in the
study area
This section estimates the general trend of irrigation development within the
study area by combining results from the data analysis and satellite image
analysis. The trend analysis starts from 1950 when the development of small
reservoirs for irrigation began in the study area.
In this trend analysis, the developed irrigated areas are distinguished from
the actual irrigated areas. This distinction is relevant for the government-led
irrigation systems (Table 7.4). For example, the actually irrigated area in the
Vea scheme fluctuates with time, as are the areas irrigated from the small
reservoirs. The government started irrigation development from the 1950s
with small reservoirs, followed by the development of the Vea scheme in
1980. Table 7.4 shows that irrigated areas in the government scheme have
never reached the developed level.