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\hypersetup{pdftitle={Is Interception More Loss in Hyrcanian Beech Versus Eurpean Beech Forest?},pdfauthor={Hashem Habashi, Maryam Moslehi},pdfsubject={Tropentag 2010: Abstract},pdfkeywords={Beech, Interception, precipitation, Throughfall},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{Is Interception More Loss in Hyrcanian Beech Versus Eurpean Beech Forest?\footnote{\textbf{Contact Address:} Hashem Habashi, Gorgan University of Agricultural Sciences and Natural Resources, Forestry, Shahid Beheshti St, Gorgan, Iran, \mbox{e-mail}: \email{habashi@gau.ac.ir}}\\[0.8ex]}}
\normalsize{\textsc{Hashem Habashi$^{1}$, Maryam Moslehi$^{2}$}}
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\begin{itemize*}
\item[]{\small{\textit{$^{1}$Gorgan University of Agricultural Sciences and Natural Resources, Forestry, Iran}}}
\item[]{\small{\textit{$^{2}$Gorgan University of Agricultural Sciences and Natural Resources, Forestry, }}}
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\index[author]{Habashi, Hashem}
\index[author]{Moslehi, Maryam}
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\textbf{Abstract}
\begin{abstract}
\normalsize{
Precipitation is one of the most important factors in deciduous semiarid forest that control ecosystem net primary production (NPP). Against if precipitation not absorb by soil, it's causing runoff, erosion and overflow. Interception determined to a large extent the amount of water which is available as soil moisture and hence impact on runoff. Interception loss was related to the nature of the rain and canopy cover situation also it's strongly related on vegetation cover.  Forest canopy have important role in rainfall interception and reduced risk of overflow. Last investigation in Hyrcanian Beech forest reported interception 59.7 percent of total precipitation that was very more than European Beech forest. It was explained by leaf area index (LAI) 5--7 in Hyrcanian Beech forest while it's 1.8--5.3 in European Beech forest. We investigated total precipitation and interception data through one year (January 2009 to February 2010) in mixed Beech forest by 100 collectors. 5 Beech species in Fageto-Carpinetum association were selected and data logger set under canopy cover. Results show from 969.9 mm total precipitation, throughfall impart 708.7 mm (\mbox{73.1\,\%}) and interceptions partake 261.2 mm (\mbox{26.9\,\%}) that like other same Beech forest Therefore interception ratio's more related to stand age, precipitation intensity and canopy saturation capacity than to leaf area index. These results are more closely related to the characteristics of rainfall and meteorological conditions during the study periods. Because these results are similar to other finding research but different with last investigations in this forests, we suggested more study must be executed to understanding interception processes and their controlling parameters in Beech forest.}

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\noindent \textbf{Keywords:} Beech, Interception, precipitation, Throughfall
\index[key]{Beech}
\index[key]{Interception}
\index[key]{Precipitation}
\index[key]{Throughfall}
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