Question

How over grazing leads to land degradation??
And how over irrigation leads to land degradation??
(This is a 10 marks question ,so answer properly)

Answer 1

Explanation:

the grazing of land decrease the land fertility as the plant takes all the nutrients present in soil so the fertility decreases

Answer 2

Answer:

Overgrazing leads to the formation of bare grounds and this bare grounds can be increase the rate on soil erosion on the land leading to land degradation

when bare grounds are formed from overgrazing they are affected by rainfall of high intensity which for on the ground leading to the dislodging of the soil particle and closure of the soil pore spaces by huge heavy raindrops likely brought by convectional rainfall and this will cause  an increase in surface runoff reducing the rate on infiltration causing an increase in soil erosion which results to an increase in land degradation  

over irrigation can lead to l;and degradation since an increase in water on the ground surface usually by surface irrigation it can cause leakage of the soil nutrients since the water will exceed the water holding capacity leading to leaching of nutrients and surface runoff causing soil erosion resulting in land degradation  

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