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\hypersetup{pdftitle={Stem Biomass Characteristics of Acroptilon Repens in Northwest Iran (Till Area of Shabestar)},pdfauthor={Ghassem Habibi Bibalani, Hamideh Shadkami},pdfsubject={Tropentag 2010: Abstract},pdfkeywords={Acroptilon repens, Iran, landslide},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{Stem Biomass Characteristics of Acroptilon Repens in Northwest Iran (Till Area of Shabestar)\footnote{\textbf{Contact Address:} Ghassem Habibi Bibalani, Islamic Azad University- Shabestar Branch, Agricultural Sciences, Azadegan 4, Shabestar, Iran, \mbox{e-mail}: \email{habibibibalani@gmail.com}}\\[0.8ex]}}
\normalsize{\textsc{Ghassem Habibi Bibalani$^{1}$, Hamideh Shadkami$^{2}$}}
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\begin{itemize*}
\item[]{\small{\textit{$^{1}$Islamic Azad University- Shabestar Branch, Agricultural Sciences, Iran}}}
\item[]{\small{\textit{$^{2}$Islamic Azad University - Marand Branch, Plant Sciences, Iran}}}
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\index[author]{Habibi Bibalani, Ghassem}
\index[author]{Shadkami, Hamideh}
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\textbf{Abstract}
\begin{abstract}
\normalsize{
Plants reduce surface soil erosion on slope. Roots of plants stable soils on slope and provide resistance against the forces that improve slope instability. this vegetation is unsuitable vegetation on slope to stable them. Restoration of rangelands vegetation effects, largely to improve slope health, is focussed on replacing agricultural plants with rangelands species, but little is known about their slope stabilising characteristics. The roots of vegetation provide an important contribution towards the stability of hill slopes. In addition, the roots also absorb water from the soil, which reduces moisture content, again helping to increase the stability of the slope. In semidried zone Northwest Iran (East Azarbayjan Province), shrubs were changed to Wheat agricultural land; this vegetation is unsuitable vegetation on slope to stable them. The vegetations perform a significant character in range land soil protection; the impacts are not completely quantified. The aim of this research was to decide the best density of Acroptilon repens. In northwest of Iran (east Azarbayjan state), rangelands was Utilized with animal grazing and changed to agricultural land use; this vegetation is unsuitable vegetation on slope to stable them. Restoration of rangelands vegetation effects, largely to improve slope health and erosion control, is focussed on replacing agricultural plants with rangelands species, but little is known about their slope protection characteristics. We studied Acroptilon repens to determine its characteristics. Data were collected with random sampling in this aria with 1 m$^{2}$ in 64 quadrate plats.  Mean stem high varied from 21.5--27 mm and for most of the plants was around 24.63 mm. Minimum, maximum and mean stem biomass of this plant is 4.87, 1.64 and 1.68 gr per square meter, respectively.}

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\noindent \textbf{Keywords:} Acroptilon repens, Iran, landslide
\index[key]{Acroptilon repens}
\index[key]{Iran}
\index[key]{Landslide}
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