Posted by: Saving Water SA (Cape Town, South Africa) – partnered with Water Rhapsody conservation systems – 11 July 2011
Boosting cooperation between countries sharing the waters of the Amu Darya, Central Asia’s longest river, could be key to future peace and security in the region a new report launched today by the United Nations Environment Programme (UNEP) says.
Big hydropower projects planned upstream, demand for irrigated agriculture downstream and growing concern that climate change is shifting weather patterns are emerging as major natural resource challenges for the four main nations involved – Afghanistan, Tajikistan, Turkmenistan and Uzbekistan.
The new report, prepared by UNEP on behalf of partners in the Environment and Security Initiative (ENVSEC), points out that water resources in the region are already impacted by decades of often unsustainable development dating back to the era of the Soviet Union.
Large-scale engineering projects dammed and diverted substantial flows from the Amu Darya river basin into activities such as cotton, wheat and fodder farming in arid and desert regions. Such projects have also contributed to increased land degradation and damage to soils.
The Aral Sea, which relies in part from water from the Amu Darya, remains severely degraded with the report’s estimates indicating that “the volume and surface area of the sea have now decreased tenfold”.
Water levels in the southern part have dropped by 26 meters and the shoreline there has now receded by several hundred kilometers, says the report Environment and Security in the Amu Darya Basin.
Across the Amu Darya basin there is growing concern over declining water quality with and implications for human health including increased incidence of kidney, thyroid and liver diseases. This is being linked with chemicals run off from cultivated land and the washing of soils in the winter to reduce salt levels. Continue reading