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\hypersetup{pdftitle={Impacts of Improving Water Management of Smallholder Agriculture in the Upper Blue Nile Basin},pdfauthor={Teklu Erkossa Jijo, Seleshi Bekele Awulachew},pdfsubject={Tropentag 2010: Abstract},pdfkeywords={Abbay basin, agricultural water management, farming system, productivity},pdfpagemode=None,colorlinks=true}
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\parbox[b]{13.4cm}{\centering \large{\textbf{Tropentag, September 14-16, 2010, Zurich}}\\[1ex] \Large{``World Food System  ---\\A Contribution from Europe''\\[2ex]}}
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\Large{\textbf{Impacts of Improving Water Management of Smallholder Agriculture in the Upper Blue Nile Basin\footnote{\textbf{Contact Address:} Teklu Erkossa Jijo, International Water Management Institute (IWMI), Productive Water Use, P.O. Box 5689, Addis Ababa, Ethiopia, \mbox{e-mail}: \email{t.erkossa@cgiar.org}}\\[0.8ex]}}
\normalsize{\textsc{Teklu Erkossa Jijo, Seleshi Bekele Awulachew}}
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\begin{itemize*}
\item[]{\small{\textit{International Water Management Institute (IWMI), Productive Water Use, Ethiopia}}}
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\index[author]{Jijo, Teklu Erkossa}
\index[author]{Awulachew, Seleshi Bekele}
\begin{center}
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\textbf{Abstract}
\begin{abstract}
\normalsize{
With its total area of about 200\,000 km$^{2}$, which is \mbox{20\,\%} of the country's land mass, and accommodating \mbox{25\,\%} of the population, the upper Blue Nile basin (Abbay) is one of the most important river basins in Ethiopia. About \mbox{40\,\%} of agricultural products and \mbox{45\,\%} of the surface water of the country are contributed by this basin. However, the characteristic intensive biophysical variation, rapid population growth, land degradation, climatic fluctuation and resultant low agricultural productivity and poverty are posing daunting challenges to sustainability of agricultural production system in the basin. This calls for technological interventions that do not only enhance productivity and livelihood in the basin, but also bring about positive spillover effects on downstream water users. In this study, the farming systems in the basin have been stratified and characterised; and promising agricultural water management technologies, which may upgrade the productivity of the smallholder rain fed agriculture while improving downstream water quality, have been identified. Consequently, supplementary and full irrigation using rainwater and drainage of waterlogged soils are recognised to be among the promising agricultural water management technologies that can be easily scaled up in the basin. The magnitude of the impacts of these technologies on the productivity of the upstream farming systems and the concomitant effects on the downstream water flow and quality are under investigation, assuming an assortment of scenarios. }

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\noindent \textbf{Keywords:} Abbay basin, agricultural water management, farming system, productivity
\index[key]{Abbay basin}
\index[key]{Agricultural!water management}
\index[key]{Farming system}
\index[key]{Productivity}
\index[key]{Blue Nile}
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