The Negative Side of
the Great Man-Made River of Libya
Omar Ihwainish
Introduction
The
Great Man-Made River of Libya is a supply of water to the Sahara Desert from
the Nubian Sandstone Aquifer System (NSAS) via a network of pipes. Dubbed the
8th wonder of the world by Revolutionary Leader Gaddafi, and appearing in the
Guinness World Records 2008 book as the
word’s largest irrigation system, the underground network of aqueducts has more
than1300 wells – 500 m deep and supplies freshwater to the cities of Tripoli,
Benghazi, Sirt and its environs. The Grand Omar Mukhtar reservoir project of
false-color image was started in 1984 and its two initial phases completed in
1996 and to cost a total of more than 25 billion US$ (Loucks, 2004).
Negative
impacts
Based
on three major factors – agriculture, economy and environment, the GMMRP has
more positive than negative impacts and it is clear that the project has
achieved more positive outcomes with an increase in the overall green land area
in the country (Zidan, 2007). Negative impacts can be traced back to 172 people
dying during construction; aesthetically, the River gives the Grand Omar
Mukhtar reservoir project a false-color image of dark blue waters residing in
the upper right and at the bottom of the reservoir; vegetation appears red –
not lush green as is of nature, city structures are grey while bare ground tan
and beige, not natural colors of these features; Increase in total usage of
agricultural chemicals owing to agriculture development and impacts of
increased population on infrastructures.
Socio-economic
impacts
Most
basic infrastructure requires massive investment – and Libya has a least
diversified economy mainly of oil and employment. There is a rise in
unemployment level with increased population, importing 75% of its food as only
1% of its land arable. Sustainable agriculture is a major issue in this sector
which yields one-fifth of employment and has a significant social influence.
There is a severe water shortage as70% of the GMMR is intended for
agriculture,28% domestic and 2% industries.
Impacts of the Great
Man-Made River on the People of Libya and its Environs
The NSAS´ reserves lies
under the Sahara Desert and beneath parts of Libya, Egypt, Chad and Sudan.
While the quantity of useable groundwater is plentiful it is also irreplaceable
because the fossil reserves are not an active part of the surrounding hydrological
cycle, meaning that the water cannot be replenished. It can only be used once -
much like oil (Robert and Alberte, 1989). Sudan and Egypt has always relied on
the Nile River for the majority of their freshwater, but the Nile isn´t as
abundant as it once was since more people, farms and industries have come to
rely on it. Chad and Libya on the other hand do not have access to a major
river like the Nile, and surface water resources in these arid regions are
scarce and diminishing. As a result, each of the four countries has given top
priority to the NSAS groundwater reserve for future demands and development
planning. It is possible that sometime in the future the NSAS will run dry,
making it increasingly important to manage the aquifer by understanding the
dynamics of the groundwater system. Rapid population growth in both Libya and
Egypt has already led to additional extraction from NSAS. Egypt needs to
support the development of new cities in desert areas away from the Nile, and
Libya will soon complete its "Great Man-Made River Project" to supply
freshwater for Tripoli, the country´s capital.
References
IAEA
(2010, March 22). Drip Irrigation: Getting More Out of Less . iaea.org. Retrieved November 8, 2010, from Http://www.iaea.org/NewsCenter/News/2010/dripirrigation.html
“H20
Know-How”. IAEA Bulletin. 47(1):
2005.
Loucks,
Daniel P. (2004). The Great Man-Made
River in Libya: Does it Make Sense?. Department
of Civil and Environmental Engineering Cornell University, Presented November 5, 2004
Robert,
H, and Alberte, U. (1989). Transboundary Groundwater: The Bellagio Draft
Treaty. Natural Resources Journal. 29:11-16.
Zidan,
A. M. (2007). The Impact of the Great Man Made River Project on Libya’s
Agricultural
Activities and the Environment. Malaysia: University
Press,.