Question
Explain two causes of chemical soil degradation.
Answer
- Monoculture/over cropping leads to exhaustion of soil minerals making it infertile and bare leading to erosion.
- Monoculture leads to loosening of soil particles thereby encouraging soil erosion.
- Continuous application of fertilizer on farm lands increases acidity/increases soil pH thus making it unsuitable for plant growth.
- Continuous application of fertilizers increases acidity of the soil which destroys microorganisms in the soil which could have helped in the formation of humus.
- Heavy rainfall can cause leaching of certain minerals making the top soil deficient of such minerals.
- Heavy rainfall can cause water logging in the low land areas leading to acidic soils.
- Prolonged drought causes accumulation of mineral salts on the top layer of soils/saline soils.
- Monoculture leads to loosening of soil particles thereby encouraging soil erosion.
- Continuous application of fertilizer on farm lands increases acidity/increases soil pH thus making it unsuitable for plant growth.
- Continuous application of fertilizers increases acidity of the soil which destroys microorganisms in the soil which could have helped in the formation of humus.
- Heavy rainfall can cause leaching of certain minerals making the top soil deficient of such minerals.
- Heavy rainfall can cause water logging in the low land areas leading to acidic soils.
- Prolonged drought causes accumulation of mineral salts on the top layer of soils/saline soils.
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