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Last updated date: 04th Dec 2023
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MVSAT Dec 2023

What is a biogeochemical cycle? What are the different types of biogeochemical cycles?

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Hint: The term biogeochemical refers to the biological, geological, and chemical elements of each cycle being taken into account.

Complete answer:
The biogeochemical cycle describes how a chemical substance travels through the earth's biotic and abiotic elements. When the elements move to and from the main sources through a number of mechanisms, they are referred to as cycles.
Carbon, oxygen, hydrogen, sulphur, and phosphorus are among these elements. The elements are recycled in the atmosphere because matter cannot be produced or lost. Changing climatic environments, on the other hand, have a significant effect on biogeochemical cycles.
There are two types of biogeochemical cycles:
1. Gaseous Cycles: The conversion and transition of gases between different biogeochemical sources, the lithosphere, hydrosphere, atmosphere, and biosphere, is referred to as the gaseous cycle. Any analysis of gaseous biogeochemical cycles requires an understanding of the interactions between reservoirs.
The carbon cycle, water cycle, nitrogen cycle, and oxygen cycle are forms of gaseous cycles.
2. Sedimentary Cycles: A cycle in which weathering of an existing rock is accompanied by mineral degradation, transportation, and deposition, and finally burial. The occurrence of less robust minerals and rock particles in first-cycle sediments describes sedimentary cycles. The sulphur cycle, phosphorus cycle, and rock cycle are forms of sedimentary cycles.

Carbon dioxide levels in the atmosphere and nitrogen levels in the biosphere have also risen dramatically as a result of human activities. Biodiversity, food conservation, human wellbeing, and water quality are all more vulnerable to climate change as a result of altered biogeochemical cycles.