Microbial Ecology & Eco Systems

Biogeochemical cycles

A biogeochemical cycle or substance turnover is a pathway by that a chemical substance moves through both the biotic (biosphere) and abiotic (lithosphere, atmosphere, and hydrosphere) components of Earth. A cycle is a series of transmuting which comes back to the commencement point and which can be reiterated. The term "biogeochemical" tells us about the biological, geological and chemical factors. The circulation of chemical nutrients like carbon, oxygen, nitrogen, phosphorus, calcium, and dihydrogen monoxide etc. through the biological and physical world are kenned as "biogeochemical cycles".