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International Journal of Soil Science
Year: 2011  |  Volume: 6  |  Issue: 1  |  Page No.: 12 - 18

Soil and Sediment Chronology as a Tool to Study Long-term Natural and Human-induced Land Degradation: An Overview

Iraj Emadodin    

Abstract: The investigations of long-term natural and human-induced land degradation are important subjects in earth ecosystems researches. They involve several scientific field of studies and tools of investigation. In order to study natural and human-induced land degradation, it is necessary to use integrative approaches with respect to temporal and spatial landscape changes. The reconstruction of historical land degradation requires a chronology of enviromental events. Soils and sediments are geoindicators which preserve important information about the long-term human impact on the environment. Optically Stimulated Luminescence (OSL) and radiocarbon dating are as applied technologies and important tool for understanding time sequences and chronological order of soil and sediment. They estimate the age of organic remains which have been preserved in soil and sediment in the past. The main methodological questions related to this paper are: why soil and sediment chronology are important and how can they be applied in long-term land degradation researches.

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