A Turkana woman carries water on her head in Lobei village of Turkana
district in northwest Kenya on October 2, 2009. REUTERS/Thomas Mukoya
Satellite technology is coming to the aid of pastoralists in
drought-stricken Kenya, with the expansion of a water monitoring system
that aims to reduce livestock loss.
The Livestock Early Warning System combines information uploaded by
villagers with satellite data to create a virtually real-time map of
forage and water conditions.
A successful pilot project in Turkana district in northwest Kenya is being considered for extension across the country.
“The whole idea is to automate the process of providing information
on water conditions in the pastoral areas in a reliable, timely and
consistent manner,” said Laban MacOpiyo, the scientist in charge of the
project at the University of Nairobi.
The system uses technology developed by Texas A&M University in
the United States and has been used in several states there, as well as
in Mali and Mongolia, said MacOpiyo.
The current programme began in southern Ethiopia and northeastern
Kenya. MacOpiyo said the UN Food and Agriculture Organization (FAO)
provided $30,000 for its expansion in October 2011 into Turkana
District, where an additional 12 monitoring sites were established by
the University of Nairobi and Texas A&M.
SATELLITE DATA AND MOBILE PHONES
The project uses Geographic Information System (GIS) mapping with
open-source data. Villagers have been trained to use mobile phones to
record information about water levels and the number of households and
specific livestock – camels, donkeys, cattle, sheep or goats – using
particular waterholes.
These data are combined with satellite images generated by the US
National Aeronautics and Space Administration (NASA) to identify water
sources, which are then visited by monitoring staff to ensure that water
is present.
“We want to look at the conditions, the water quality, and distance
trekked by livestock to a waterhole, as well as the forage conditions in
the region,” said Joseph Matere, an FAO official in Nairobi, Kenya’s
capital.
The data from locals on the ground and from NASA are fed into a
computer that models the topography of the region along with
hydrological characteristics such as infiltration, evapo-transpiration
and surface run-off, explained MacOpyio.
The computer generates colour-coded images of the land. Green
indicates normal vegetation cover, yellow suggests that the vegetation
is getting poor, while brown means that it is scarce.
“Yellow areas … imply that long-term vegetation conditions are 20 to
40 percent below normal, which points toward drought conditions,” said
Matere.
The aim is to come up with “a very reliable early warning system” and
to give pastoralists faced with water shortages ideas on how to cope
with drought conditions.
TAKING ACTION
These might include de-silting and repairing strategic water sources,
vaccinating and de-worming livestock to make them better able to stand
adverse conditions, and establishing fodder production units. In more
severe situations, experts might advise pastoral communities to use
reserve grazing land if available or to sell their livestock well before
the water situation becomes critical.
Matere said the FAO wants to encourage rehabilitation of degraded
rangeland by fencing off areas in an effort to eventually improve grass
availability.
In addition, it hopes to establish feed banks along migration routes so that livestock do not die enroute.
Computer models could also reproduce historical data, showing water
conditions in years past. This could help scientists forecast conditions
more accurately over periods ranging from three months to five years.
“This water monitoring system is very useful because it gives
specific information on water and drought conditions of a specific
area,” said Elizabeth Lokolio, a livestock officer with a Turkana
pastoralist organization. She was trained as one of the project’s
drought monitors.
Lokolio said that that the new method of communicating about water
conditions is far superior to traditional practices, which relied on
village elders to report information.
As part of the program, forecasts and advice are communicated to
Turkana pastoralist communities via the Internet – accessed in part on
mobile phones - but MacOpiyo said that scientists hope to work with the
National Drought Monitoring Authority to disseminate their forecasts
through community radio, text messaging and community meetings as well.
The pilot project in Turkana ended in February of this year, and
MacOpiyo and his colleagues are now seeking FAO funding to support its
continuation and expansion into other arid and semi-arid parts of the
country.
By Geoffrey Kamadi@AlertNet
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