nitrogen cycle
1nitrogen cycle — n a continuous series of natural processes by which nitrogen passes through successive stations in air, soil, and organisms and which principally involves nitrogen fixation, nitrification, decay, and denitrification * * * the steps by which… …
2nitrogen cycle — n. the cycle of natural processes through which atmospheric nitrogen is converted by nitrogen fixation and nitrification into compounds used by plants and animals in the formation of proteins and is eventually returned by decay and… …
3Nitrogen 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 …
4nitrogen cycle — /ˈnaɪtrədʒən saɪkəl/ (say nuytruhjuhn suykuhl) noun the continuous circulation of nitrogen and nitrogen compounds in nature between the atmosphere, the soil, and the various organisms to which nitrogen is essential. The nitrogen cycle describes… …
5nitrogen cycle — noun the circulation of nitrogen; nitrates from the soil are absorbed by plants which are eaten by animals that die and decay returning the nitrogen back to the soil • Hypernyms: ↑organic process, ↑biological process * * * ˈnitrogen cycle 7… …
6nitrogen cycle — azoto ciklas statusas T sritis chemija apibrėžtis Azoto apykaita gamtoje. atitikmenys: angl. nitrogen cycle rus. цикл азота …
7nitrogen cycle — azoto ciklas statusas T sritis ekologija ir aplinkotyra apibrėžtis Azoto ir jo junginių gamtinio vartojimo ir perdirbimo vyksmų ciklas. atitikmenys: angl. nitrogen cycle vok. Stickstoffkreislauf, m rus. круговорот азота, m …
8nitrogen cycle — the continuous sequence of events by which atmospheric nitrogen and nitrogenous compounds in the soil are converted, as by nitrification and nitrogen fixation, into substances that can be utilized by green plants, the substances returning to the… …
9nitrogen cycle — noun The natural circulation of nitrogen, in which atmospheric nitrogen is converted to nitrogen oxides by lightning and deposited in the soil by rain where it is assimilated by plants and either eaten by animals (and returned as faeces) or… …
10nitrogen cycle — Inorganic nitrogen incorporated into organic nitrogen in living organisms and returned to inorganic nitrogen by breakdown of the organic molecules on death of the living organisms …
