Biogeochemical cycle
Biogeochemical cycle
The Biogeochemical cycle (pronunciation: /ˌbaɪoʊdʒiːoʊˈkɛmɪkəl/), also known as substance turnover or nutrient cycle, refers to the flow of chemical elements and compounds between living organisms and the physical environment.
Etymology
The term "Biogeochemical cycle" is derived from the words "bio" meaning life, "geo" meaning earth, and "chemical" referring to the elements that move through these cycles.
Description
In ecology, a biogeochemical cycle is a pathway by which a chemical substance moves through both the biotic (biosphere) and abiotic (lithosphere, atmosphere, and hydrosphere) components of Earth. These cycles include the carbon cycle, nitrogen cycle, oxygen cycle, phosphorus cycle, sulfur cycle, and water cycle (also referred to as the H2O cycle).
Importance
Biogeochemical cycles are crucial for life and well-being on Earth. They ensure the circulation of essential elements such as carbon, nitrogen, oxygen, and many others. These cycles are interconnected, with each one affecting the others. Disruptions in one cycle can therefore have significant impacts on the others, potentially leading to environmental problems such as climate change and biodiversity loss.
See also
References
External links
- Medical encyclopedia article on Biogeochemical cycle
- Wikipedia's article - Biogeochemical cycle
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