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\hypersetup{pdftitle={Agroforestry in Central Asia - Impacts on Farm Income and Water Use},pdfauthor={Niels Thevs, Kumarbek Aliev, Eva Strenge},pdfsubject={Tropentag 2016: Abstract},pdfkeywords={Agroforestry, Central Asia, Elm, Kazakhstan, Kyrgyzstan, Poplar, water consumption, wheat},pdfpagemode=None,colorlinks=true}
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\parbox[b]{13.4cm}{\centering \large{\textbf{Tropentag, September 18-21, 2016, Vienna, Austria}}\\[1ex] \Large{``Solidarity in a competing world ---\\fair use of resources''\\[2ex]}}
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\begin{center}
\Large{\textbf{Agroforestry in Central Asia - Impacts on Farm Income and Water Use\footnote{\textbf{Contact Address:} Niels Thevs, World Agroforestry Centre, Central Asia Office, Toktogul Street 138, 720001~Bishkek, Kyrgyzstan, \mbox{e-mail}: \email{N.Thevs@cgiar.org}}\\[0.8ex]}}
\normalsize{\textsc{Niels Thevs$^{1}$, Kumarbek Aliev$^{2}$, Eva Strenge$^{3}$}}
\end{center}
\begin{itemize*}
\item[]{\small{\textit{$^{1}$World Agroforestry Centre, Central Asia Office, Kyrgyzstan}}}
\item[]{\small{\textit{$^{2}$World Agroforestry Centre, Central Asia Office, }}}
\item[]{\small{\textit{$^{3}$University of Trier, Faculty of Regional and Environmental Sciences, }}}
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\index[author]{Thevs, Niels}
\index[author]{Aliev, Kumarbek}
\index[author]{Strenge, Eva}
\begin{center}
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\textbf{Abstract}
\begin{abstract}
\normalsize{
Central Asia is a region largely dominated by dry climate. Therefore, most of the agricultural lands in Central Asia partly or completely depend on irrigation. Irrigation water is withdrawn from the rivers of the region, which has resulted in conflicts over water resources between countries and different water users. In the context of sustainable management of water and land resources, it is necessary to reduce the water consumption of irrigated agriculture without compromising farmers' income. Agro"=forestry systems, notably tree shelterbelts, promise potential to reduce water consumption of irrigated crops while adding to farmers' income. Literature, mainly from Soviet Union times, shows that water consumption of annual crops inside such shelterbelts is reduced compared to outside such shelterbelt systems. Water consumption of the trees that form those shelterbelts is unknown so far. During this vegetation period, we will measure the water consumption of Poplars and Elms forming shelterbelts on two sites in the Chui Valley in Kazakhstan and Kyrgyzstan, respectively. The water consumption of those trees will be measured by sap flow measurement. Furthermore, we will measure the timber potentially provided by those tree species as a source of income. The timber yield will be assessed through BDH and height measurements. Volume tables and wood densities from the literature will be used to convert DBH and height into timber biomass. Those literature values will be supplemented by biomass measurements through the Fractal Branch Analysis Model developed by ICRAF. Timber prices, in order to assess potential income from timber, will be revealed through expert interviews in the region. This presentation will present the results from that ongoing work. }

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\noindent \textbf{Keywords:} Agroforestry, Central Asia, Elm, Kazakhstan, Kyrgyzstan, Poplar, water consumption, wheat
\index[key]{Agroforestry}
\index[key]{Central Asia}
\index[key]{Elm}
\index[key]{Kazakhstan}
\index[key]{Kyrgyzstan}
\index[key]{Poplar}
\index[key]{Water!consumption}
\index[key]{Wheat}
\end{document}
