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Nitrogen cycle will be disrupted due to soil erosion. How?
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Answer 1

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Topsoil is a source of various essential nutrients and water for the growth of plants. It also contains living organisms like bacteria, fungi, earthworms, moles etc. There are some bacteria and blue-green algae, which fix the atmospheric nitrogen into the soil, thereby increasing the fertility of the soil. So, bacteria play an important role in the nitrogen cycle. If topsoil gets eroded, organisms present in the soil will get removed and the cycle will also get disturbed.

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Answer 2

Answer

The Earth's land surface is dominated by sloping landscapes. Every year, soil erosion laterally distributes on the order of 75 Gt of topsoil (Berhe et al. 2007). The coupled biogeochemical cycles of carbon (C) and nitrogen (N) are strongly influenced by soil erosion as it affects their fluxes in and out of the soil system, storage, distribution within the soil matrix, and residence time in soil. At the global scale, it is estimated that erosion can account for a net sink for atmospheric carbon dioxide

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