Land and Land Deforestation
Storyboard Text
- OVERGRAZING
- Increase in livestock population results in overexploitation of pastures. Hence, grass and other types of vegetation are unable to survive and grow and lack of vegetation cover leads to soil erosion.
- SALINATION
- The increase in the concentration of salts in the soil or salination depends on some factors such as quality of irrigation water, poor drainage soil, and salts blown by winds.
- WATER-LOGGING
- The excessive irrigation and improper drainage facility in the fields cause rise in the ground water level. This ground water mixes with the surface water used for irrigation that creates water-logging.
- Desertification and land degradation can contribute to local warming by reducing plant cover and increasing soil exposure, which changes the energy balance of an area. Changes in climate in turn, can intensify desertification nd land degradation.
- DESERTIFICATION
- SOIL EROSION
- Land degradation results from the combined effects of processes such as loss of biological diversity and vegetative cover, soil loss nutrient imbalance, decline in soil organic matter and decrease of infiltration and water retention capacity. Soil erosion means the removal of top fertile layer of the soil. Soil erosion by wind and water is the most common and extensive.
- Land degradation can be avoided, reduced or reserved by implementing sustainable land management, restoration and rehabilitation practices that simultaneously provide many co-benefits, including adaptation to and mitigation of climate change.
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