biogeochemical cycle

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biogeochemical cycle

[‚bī·ō‚jē·ō′kem·ə·kəl ′sīkəl]
(geochemistry)
The chemical interactions that exist between the atmosphere, hydrosphere, lithosphere, and biosphere.
References in periodicals archive ?
Our recent studies of phytoplankton, primitive photosynthetic marine protists that play important roles in ocean biogeochemical cycles, are providing exciting new information on the roles and evolution of membrane transport, cell signalling and metabolic regulation.
The students in various groups presented models of models on carbon cycle, sulfur cycle, aquatic ecosystem, global warming, biogeochemical cycles, savanna ecosystem, nitrogen cycle, human impacts on forest ecosystem and forest ecosystems.
Their role in the biogeochemical cycles of ocean ecosystems and global ocean has to be reconsidered, as it is likely that they are breathing between 1% and 10% of the primary production in deep waters.
They added that this suggests that major human impacts on global biogeochemical cycles go back well before dawn of the agriculture.
They cover the elements in the Solar System, meteorites, the solar nebula, the bodies in the inner Solar System, terrestrial atmospheric chemistry, the greenhouse effect and biogeochemical cycles on Earth, and the outer Solar System.
Little is known regarding student conceptions of complex environmental systems and the literature regarding student understandings of biogeochemical cycles and eutrophication is particularly limited.
Eventually, humanity will be forced to work within the biogeochemical cycles, as it generally did before the advent of industrial agriculture, by recycling all biological residues and relying much more on biologically fixed nitrogen, such as by using legumes.
Given the important role plankton plays in the Earth's biogeochemical cycles, and for example as a food source for many fish species, the impact that ocean acidification-induced changes in the chemical composition of seawater will have on plankton is a major concern.
Recent studies showed that bamboos are a significant organic silicon pool and play an important role in biogeochemical cycles of silicon and other nutrients because of their special growth habit and biogeochemical characteristics, i.
The results of this study will inform ongoing research in many areas, including the study of Earth's evolution, organic chemistry, biogeochemical cycles, disease mitigation and Earth system research.
There is also background on biogeochemical cycles, environmental chemistry, and green chemistry.