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\hypersetup{pdftitle={Naturalized Species Along the Roads},pdfauthor={Anu Singh},pdfsubject={Tropentag 2016: Abstract},pdfkeywords={Disturbance, forestry, invasive, inventory, naturalised, regeneration, roads, species, student project, succession, Vietnam},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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\Large{\textbf{Naturalized Species Along the Roads\footnote{\textbf{Contact Address:} Anu Singh, Georg-August Universität Göttingen, Göttingen, Germany, \mbox{e-mail}: \email{anu.singh855@gmail.com}}\\[0.8ex]}}
\normalsize{\textsc{Anu Singh}}
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\begin{itemize*}
\item[]{\small{\textit{Georg-August Universität Göttingen, Germany}}}
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\index[author]{Singh, Anu}
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\textbf{Abstract}
\begin{abstract}
\normalsize{
Invasive alien species are defined as species which are non"=native to and ecologically harmful to the environment. These species are directly or indirectly distributed by human activities They have gained much importance during the last decade as they cause economic costs and alter ecosystem functions. In Vietnam (study site) we need to understand the geographical and historical events and the rapid change in society which is increasing the influence of invasive species and the people who are using invasive species, as they have naturalized themselves in the area for a long period of time. In this time period, the occurrence of invasive species is seen along the roads. Roads are constructed along the newly planted Acacia which is also considered as the reason for the increasing forest coverage in the area. Around 14,\mbox{500\,ha} of the target district area- A L\&\#432;\&\#7899;i is covered with ``planted forest for production'', which are mainly Acacia plantations established for reforestation reasons. The study area is located in Central Vietnam, in the mountainous district of A L\&\#432;\&\#7899;i which is part of the Thiên-Hu\&\#7871; Province. Two different communes overlap the area, the B\&\#7855;c S\&\#417;n commune and the H\&\#7891;ng Kim commune. In the study area, forest inventory was conducted which can cover the influence of invasive species inside the forest. The regeneration plots were \mbox{1.5\,m} radius. The plots have some influence of lianas. Assessments of the composition of a forest stand give an indication of the succession processes that have taken place and how historical events have shaped the current forest. Species composition can also provide concrete evidence on past managerial interventions applied in the area. Tree species with dbh $\geq$ \mbox{6\,cm} were used for the analysis. The secondary forest comprises of 21 families, 30 genera and 100 species. There were 19 species that could not be identified by both the botanist and local people. The invasive species have naturalized themselves so well that people have not realised its changes or occurrence in the area so much. Local people are using it for different reasons but its abundance is increasing.}

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\noindent \textbf{Keywords:} Disturbance, forestry, invasive, inventory, naturalised, regeneration, roads, species, student project, succession, Vietnam
\index[key]{Disturbance}
\index[key]{Forestry}
\index[key]{Invasive}
\index[key]{Inventory}
\index[key]{Naturalised}
\index[key]{Regeneration}
\index[key]{Roads}
\index[key]{Species}
\index[key]{Student project}
\index[key]{Succession}
\index[key]{Vietnam}
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