\documentclass[english,german]{scrartcl}
\usepackage[latin1]{inputenc}
\usepackage{geometry}
\geometry{verbose,a4paper,tmargin=1.75cm,bmargin=2cm,lmargin=2cm,rmargin=2cm,headheight=0.8cm,headsep=0.5cm,footskip=0.5cm}
\usepackage{babel}
\usepackage{url}
\urlstyle{same}
\newcommand\email{\begingroup \urlstyle{same}\Url}\usepackage{graphicx}
\usepackage{units}
\usepackage{tabularx}
\usepackage{wasysym} % enable use of \permil instead of \textperthousand
\usepackage{marvosym}
\usepackage{arabtex}
\usepackage{hyphenat}
\usepackage{booktabs}
\usepackage{mdwlist}
\renewcommand{\thefootnote}{\relax}
\usepackage{index}
\newindex{key}{kdx}{knd}{Keywords}
\newindex{author}{idx}{ind}{Authors}
\usepackage{fancyhdr}
\pagestyle{fancy}
\renewcommand{\headrulewidth}{0pt}
\fancyfoot{}
\usepackage{ifpdf}
\ifpdf
%\usepackage[activate]{pdfcprot}
%\usepackage[owner=Tapioka, print=true, copy=true, edit=false, annotate=false,set]{pdfcrypt}
%encryption: not supported any more (since pdftex 1.10)
\usepackage[pdftex]{thumbpdf}
\usepackage[pdftex]{hyperref}
\hypersetup{pdftitle={Integrated Crop Livestock Forest Systems as Strategy of Rational Resource Use in Brazilian Agriculture},pdfauthor={Andre Luiz Aidar Alves, Alcido Elenor Wander},pdfsubject={Tropentag 2016: Abstract},pdfkeywords={Agro-silvo-pastoral systems, low carbon agriculture, sustainable intensification},pdfpagemode=None,colorlinks=true}
\else
\usepackage{ae}
\usepackage{textcomp}
\fi
\begin{document}
\ifpdf
\parbox[b]{2.5cm}{\resizebox*{2.5cm}{!}{\includegraphics{dtt2016.jpg}}}
\else
\parbox[b]{2.5cm}{\resizebox*{2.5cm}{!}{\includegraphics{dtt2016.eps}}}
\fi
\hfill
\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]}}
\hspace{0.1cm}
\begin{center}
\Large{\textbf{Integrated Crop Livestock Forest Systems as Strategy of Rational Resource Use in Brazilian Agriculture\footnote{\textbf{Contact Address:} Alcido Elenor Wander, Brazilian Agricultural Research Corporation (EMBRAPA), National Rice and Beans Research Center (CNPAF), Rodovia GO-462, km 12, 75375-000~Santo Antonio de Goias, Brazil, \mbox{e-mail}: \email{alcido.wander@embrapa.br}}\\[0.8ex]}}
\normalsize{\textsc{Andre Luiz Aidar Alves$^{1}$, Alcido Elenor Wander$^{2}$}}
\end{center}
\begin{itemize*}
\item[]{\small{\textit{$^{1}$Pontificia Universidade Catolica de Goias (PUC/GO), Brazil}}}
\item[]{\small{\textit{$^{2}$Brazilian Agricultural Research Corporation (EMBRAPA), National Rice and Beans Research Center (CNPAF), Brazil}}}
\end{itemize*}
\index[author]{Alves, Andre Luiz Aidar}
\index[author]{Wander, Alcido Elenor}
\begin{center}
\vspace{1.1cm}
\textbf{Abstract}
\begin{abstract}
\normalsize{
The objective of this study is to present crop"=livestock-forest integration as a rational method of farmland use in Brazil and the positive results that it can provide to farmers and the environment. Based on a literature review, we identify main benefits of its adoption and elaborate on its potential contribution to further agricultural production development. The integration of crops, livestock and forests represents an agricultural strategy that combines productivity increase with environmental preservation. It is an extremely interesting agricultural technique from economic and ecological point of view. It adds diversification of activities, intensification of land use and sustainability, and enhances biodiversity. It also promotes the improvement of soil fertility, it makes use of techniques and cropping systems suitable for the optimisation and intensification of its use. Thus, it allows a diversification of the economic activities on a farm, minimising the risk of income frustration arising from market conditions or externalities such as climatic adversities. The integration also reduces the need for use of external inputs and the demand for new additional agricultural land for cultivation, decreasing environmental liabilities. Additionally, it facilitates certification and traceability of agricultural products, generates new jobs through sustainable intensification of land use and reduces greenhouse gas emissions and promotes carbon sequestration in soils and plant biomass. It is one major strategy to promote low carbon agriculture in Brazil. This method, combined with conservation practices, such as the no tillage, constitutes an economic and sustainable alternative to raise the productivity of degraded areas. Since 2013, Brazil created its National Crop-Livestock-Forest Integration Policy to promote adoption of this strategy to recover degraded areas and to reduce deforestation.}

\vspace{0.5cm}
\end{abstract}
\end{center}
\noindent \textbf{Keywords:} Agro"=silvo-pastoral systems, low carbon agriculture, sustainable intensification
\index[key]{Agro"=silvo-pastoral systems}
\index[key]{Low carbon agriculture}
\index[key]{Sustainable!intensification}
\end{document}
