Gold panning practices and soil erosion in Mabayi
Abel Nsabimana
Broschiertes Buch

Gold panning practices and soil erosion in Mabayi

Degradation of slope and swamp lands due to artisanal gold mining

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The study of 20 gold panning sites in Mabayi, Burundi, shows that as a result of inappropriate gold panning practices, 45% of the sites present a very high risk of landslides; 65% of the sites present a high risk of landslides; 40% of the sites present a high risk of sedimentation in the shallows; 15% of the sites present a high risk of erosion in the river beds. Finally, 75% of the sites present a high risk of river turbidity. The volume of soil excavated from the 20 sites is estimated at 10,964.4 m3. The turbidity of the water in the rivers averages 446.9 mg/liter without the addition of mat...