Desertification – Factors Responsible and How To Combat It


Desertification is not the natural expansion of existing deserts but the degradation of land in arid, semi arid, and dry sub-humid areas. It is a gradual process of soil productivity loss and the thinning out of the vegetative cover because of human acitivites and climatic variations such as prolonged droughts and floods. What is alarming is that though the land’s topsoil, if mistreated, can be blown and washed away in a few seasons, it takes centuries to build up. Among human causal factors are over cultivation. Overgrazing, deforestation, and poor irrigation practices. Such over exploitation is generally caused by economic and social pressure ignorance, war and drought. read more

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