Evaluation physico-chemical deterioration of ferrallisol in three sites of Tsiroanomandidy district Madagascar

Environnement Science

The assessments physico-chemical deterioration of ferrallisol in three sites Tsiroanomandidy district is a decision-making tool for the prediction of this phenomenon in time and space. The appreciation of physical deterioration makes itself by the assessment of compactness soils while being based on the qualitative approach. The appreciation of chemical deterioration and biologic make themselves by the assessment of the yearly reduction of saturation in bases’s complex and by the yearly reduction of content in organic matter. The objective of this study is to assess the risks of soil deterioration at the three sites. The results obtained are: picture of profile compact degraded soil; histogram’s saturation rate some base of the complex and the histogram of the organic matter rate as according to the age of enhancement’s soils.

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