1. About 65 % of Africa's agricultural land suffers from soil degradation . 2. Fertile lands in the highlands suffer from severe soil degradation , erosion and extensive deforestation. 3. Soil degradation such as erosion, compaction, lowered fertility, and contamination continue to be serious concerns.4. The vehicles cause soil degradation , erosion, and plant mortality. 5. Soil degradation in the dry zone leads to desertification.6. Water pollution, air pollution, and soil degradation pose enormous threat to ecosystems and human health. 7. These schemes often lead to soil degradation and salinization. 8. Instead, the authors might want to consider a limit on soil degradation or soil loss. 9. Special attention was given to preventing water pollution and soil degradation in the Metolius River watershed. 10. Deforestation and soil degradation have made the available surface water typically highly polluted and difficult to retain.
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