Nutrient cycle — … Wikipedia
nutrient cycle — The passage of a nutrient or element through an ecosystem, including its assimilation and release by various organisms and its transformation into various organic or inorganic chemical forms … Glossary of Biotechnology
Nutrient — cycle in the oceans A nutrient is a chemical that an organism needs to live and grow or a substance used in an organism s metabolism which must be taken in from its environment.[1] They are used to build and repair tissues, regulate body… … Wikipedia
Cycle Du Carbone — Schéma du cycle du carbone. La déforestation modifi … Wikipédia en Français
Cycle du carbone — Schéma du cycle du carbone. La déforestation mod … Wikipédia en Français
Cycle du blé — Blé Cet article possède un paronyme, voir : Charles Blé Goudé. Pour l’article homonyme, voir la couleur blé. … Wikipédia en Français
Biogeochemical cycle — A commonly cited example is the water cycle. In ecology and Earth science, a biogeochemical cycle or substance turnover or cycling of substances is a pathway by which a chemical element or molecule moves through both biotic (biosphere) and… … Wikipedia
Human impacts on the nitrogen cycle — Agricultural and industrial nitrogen (N) inputs to the environment currently exceed inputs from natural N fixation (Galloway 2003). As a consequence of anthropogenic inputs, the global nitrogen cycle (Fig. 1) has been significantly altered over… … Wikipedia
Nitrogen cycle — Schematic representation of the flow of nitrogen through the environment. The importance of bacteria in the cycle is immediately recognized as being a key element in the cycle, providing different forms of nitrogen compounds assimilable by higher … Wikipedia
Phosphorus cycle — The phosphorus cycle is the biogeochemical cycle that describes the movement of phosphorus through the lithosphere, hydrosphere, and biosphere. Unlike many other biogeochemical cycles, the atmosphere does not play a significant role in the… … Wikipedia
