what is lateralization,crop logging,desertification,sheet erosion
Answers
Explanation:
Soil Degradation
Soil degradation is the decline in soil quality caused by its improper use, usually for agricultural, pastoral, industrial or urban purposes.
Soil degradation is a serious global environmental problem and may be exacerbated by climate change. It encompasses physical (soil erosion), chemical (salinity and alkalinity, pollution) and biological deterioration (pollution and deterioration of vegetal cover).
Soil Erosion
Soil erosion is the removal of top soil by agents like wind and water.
Top soil has most of the nutrients necessary for a plant’s growth. With depth, the fertility of the soil decreases. Thus, erosion results in reduction of fertility of the soil by washing away the fertile top layer.
Desertification
UNCCD defines desertification as ‘land-degradation in arid, semi-arid and sub-humid areas resulting from various factors including climatic variations and human activities’.
Loss of soil cover, mainly due to rainfall and surface runoff, is one of the biggest reasons for desertification.