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\hypersetup{pdftitle={Evaluation of Changes in Land Resources and Propose the Solutions to Increase Agricultural Production in Semi"=arid Lands - Sudan},pdfauthor={Majdaldin Rahamtallah Abualgasim Mohammed},pdfsubject={Tropentag 2016: Abstract},pdfkeywords={Agricultural production, land allocations, land resources, semi-arid land, sudan},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{Evaluation of Changes in Land Resources and Propose the Solutions to Increase Agricultural Production in Semi"=arid Lands - Sudan\footnote{\textbf{Contact Address:} Majdaldin Rahamtallah Abualgasim Mohammed, Technische Universität Dresden, Inst. of Photogrammetry and Remote Sensing, Gerok Str 32/0703, 01307~Dresden, Germany, \mbox{e-mail}: \email{majdi-dri@hotmail.com}}\\[0.8ex]}}
\normalsize{\textsc{Majdaldin Rahamtallah Abualgasim Mohammed}}
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\begin{itemize*}
\item[]{\small{\textit{Technische Universität Dresden, Inst. of Photogrammetry and Remote Sensing, Germany}}}
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\index[author]{Rahamtallah Abualgasim Mohammed, Majdaldin}
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\textbf{Abstract}
\begin{abstract}
\normalsize{
The agricultural sector is the first supporter of the Sudanese national economy, about \mbox{90\,\%} of Sudan's external exports comes from agricultural products, as well as around \mbox{80\,\%} of the manpower labors involved in agriculture or manufacturing of agricultural products. Therefore, the fundamentals of increasing the production in the agricultural sector is how to manage the resource of land use and land cover and to conserve against danger and threats and fair use of resources. In recent years, the agricultural production decreased due to several reasons, such as climatic changes, irregular and bad uses of land resource, wars and conflicts, the infestation of unfavourable mesquite trees and invasion of sand, frictions between pastoralists and farmers and overgrazing in addition to the lack of transparency in land allocation and non"=optimal use of irrigation water and other reasons.



This study aims to determine the drastic of the occurred change and its effects on the production and evaluation of the current situation and raise the awareness of the risks and threats and propose the solutions to conserve the resources in order to increase agricultural production in the Gash Agricultural Scheme. To achieve that, four free cloud satellite imagery has been used for the years 1975, 1985, 1995 and 2010 cover the selected study area were geometrically and atmospherically corrected to remove the distortions. The results observed a drastic decrease over time in the productive land from (\mbox{23\,\%}) in 1975 to (\mbox{10\,\%}) in 2010 while increasing of sand invasion and mesquite trees infestation as a result of the above"=mentioned reasons. The study recommended to adopted agricultural cycle policy, transparency in land and irrigation water distribution (fair), enhance the confidence of producers, develop plans for the future, conserve the resources against the climatic and environmental threats to raise the production and enhance food security in the region.



}

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\noindent \textbf{Keywords:} Agricultural production, land allocations, land resources, semi"=arid land, sudan
\index[key]{Agricultural!production}
\index[key]{Land!allocations}
\index[key]{Land!resources}
\index[key]{Semi"=arid land}
\index[key]{Sudan}
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