BOTANY
FORESTRY
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Deforestation
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Degradation
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Forest Degradation
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Reforestation
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Detailed explanation-1: -Land degradation-the deterioration or loss of the productive capacity of the soils for present and future-is a global challenge that affects everyone through food insecurity, higher food prices, climate change, environmental hazards, and the loss of biodiversity and ecosystem services.
Detailed explanation-2: -There are six major causes of land degradation in the region: deforestation, shortage of land due to increased populations, poor land use, insecure land tenure, inappropriate land management practices and poverty.
Detailed explanation-3: -Soil degradation causes include agricultural, industrial, and commercial pollution; loss of arable land due to urban expansion, overgrazing, and unsustainable agricultural practices; and long-term climatic changes.
Detailed explanation-4: -Soil physical degradation can affect crop growth and yield by decreasing root depth and available water and nutrient reserves and soil erosion can lead to yield loss by affecting soil organic carbon, nitrogen, phosphorus, and potassium contents and soil pH.
Detailed explanation-5: -For the purpose of this study, the many and varied processes of land degradation have been grouped into six classes: water erosion, wind erosion, soil fertility decline, salinization, waterlogging, and lowering of the water table.