Question

outline some of the potential impacts of human activity on the nitrogen cycle in soils

Answer 1

Nitrogen is important for human beings as it is the essential part of amino acids which in turn forms proteins. Obvious effects of human activity has been observed with nitrogen cycle, since amount of nitrogen presented in the atmosphere will be changed due to pollution and green house gases. Burning of fuels are also a major reason of altering nitrogen content as it emits nitric oxides in to the air. Application of fertilisers increases nitrification and denitrification in to the atmosphere, which also increases excess release of nitric oxide in to air. Imbalance in nitrogen cycle leads to acidification and eutrophication etc.,