Linked from

The 65 pages that link to Nitrogen cycle, each with the reason it gives.

• EutrophicationRelated: Nitrogen transformations determine how much biologically available nutrient reaches water.

• AmmoniaNarrower topic: Ammonia is a central intermediate in biological and human-altered nitrogen flows.

• Nitrogen fixationNarrower topic: Fixation is the cycle’s entry route from atmospheric nitrogen into reactive forms.

• Green RevolutionNarrower topic: Heavy synthetic nitrogen use altered nutrient flows and contributed to pollution.

• Nutrient cyclingBroader topic: Nitrogen illustrates how fixation, uptake, decomposition, and loss connect cycle stages.

• AnthropoceneNarrower topic: Industrial fertilizer production and use have substantially altered nitrogen flows and left sedimentary signals.

• NitrogenNarrower topic: It traces how nitrogen changes form and moves through ecosystems.

• Soil fertilityBroader topic: Nitrogen fixation, mineralization, and losses determine how much soil nitrogen crops can access.

• Nitrous oxideNarrower topic: Microbial steps in the nitrogen cycle generate most naturally occurring and agricultural nitrous oxide.

• FertilizerRelated: Soil microbes transform fertilizer nitrogen into forms plants can use or lose.

• Ocean deoxygenationRelated: Low-oxygen conditions alter microbial nitrogen transformations and can increase nitrogen loss from ecosystems.

• Biogeochemical cycleBroader topic: It governs how usable nitrogen reaches ecosystems and how reactive nitrogen accumulates.

• UreaNarrower topic: Urea carries biologically processed nitrogen back into soils and ecosystems.

• Anaerobic respirationRelated: Denitrifying respiration returns biologically available nitrogen to the atmosphere.

• Phosphorus cycleCompared with: Unlike phosphorus, nitrogen has a large atmospheric reservoir and a major gaseous phase.

• Biological nitrogen fixationNarrower topic: Fixation is the main natural route that brings atmospheric nitrogen into many ecosystems.

• NitrateNarrower topic: Nitrate is one of the cycle’s mobile, biologically available forms of nitrogen.

• Fritz HaberNarrower topic: Haber’s process intervened in the natural cycle by adding reactive nitrogen at industrial scale.

• Haber processNarrower topic: Industrial fixation adds reactive nitrogen to natural cycles on a scale comparable to biological fixation.

• Nutrient pollutionNarrower topic: It explains how reactive nitrogen reaches ecosystems and changes form after release.

• Aquarium fishRelated: Beneficial microbes process toxic fish waste through this cycle.

• NitrificationNarrower topic: Nitrification is one microbial transformation within this larger cycle.

• Nitrogen fertilizerNarrower topic: Soil transformations in the nitrogen cycle determine which fertilizer forms plants can absorb.

• Greenhouse gas emissions from agricultureNarrower topic: It explains how applied nitrogen can become nitrous oxide.

• MicroorganismRelated: Microorganisms perform essential transformations such as nitrogen fixation and denitrification.

• Soil microbiomeRelated: Soil microorganisms mediate nitrogen fixation, nitrification, and denitrification.

• Carbon-14Related: Atmospheric nitrogen supplies the nuclei from which natural carbon-14 is produced.

• GuanoRelated: Guano concentrates biologically cycled nitrogen into material that can enrich farmland.

• Plant nutritionNarrower topic: Plant nitrogen supply depends on transformations in the wider nitrogen cycle.

• Soil microbiologyRelated: Soil microbes mediate nitrogen fixation, mineralization, nitrification, and denitrification.

• AquariumRelated: In aquariums, microbes convert toxic ammonia into nitrite and then less harmful nitrate.

• DecomposerRelated: Decomposition releases nitrogen compounds that other organisms can use.

• Carl BoschRelated: Industrial fixation added large quantities of reactive nitrogen to natural cycles.

• Carnivorous plantRelated: Prey provides nitrogen that nutrient-poor habitats often fail to supply.

• ManureRelated: Manure returns biologically available nitrogen to soils, where it can change form or escape.

• BiogeochemistryBroader topic: Microbial transformations make nitrogen available to organisms and return it to the atmosphere.

• NitrogenaseNarrower topic: Nitrogenase introduces biologically available nitrogen into the cycle.

• EricaceaeRelated: Ericaceae depend on nitrogen acquisition strategies suited to soils where nitrogen is scarce.

• Synthetic fertilizerNarrower topic: Fertilizer nitrogen enters this wider cycle, where it can nourish crops or escape into the environment.

• Ammonium sulfateRelated: Soil microbes transform ammonium from this fertilizer into other forms of nitrogen.

• AquaponicsRelated: Aquaponics relies on microbial steps in this cycle to move nitrogen from waste to plants.

• FrankiaNarrower topic: Frankia fixation introduces atmospheric nitrogen into the biological nitrogen cycle.

• Microbial dark matterBroader topic: Uncultured microbes may carry genes for nitrogen transformations in ecosystems.

• Nitrous acidNarrower topic: Nitrite and related nitrogen species occur as intermediates in this cycle.

• Ostwald processNarrower topic: The process industrially fixes and transforms nitrogen into biologically available compounds.

• Ammonia synthesisRelated: Industrial fixation adds reactive nitrogen at a scale that alters the global cycle.

• Sodium nitrateRelated: Nitrate from this salt enters the biological nitrogen cycle after agricultural use.

• Great AccelerationRelated: Synthetic fertilizer and combustion sharply increased human alteration of nitrogen flows.

• Human impact on the environmentRelated: Fertilizer production and use add reactive nitrogen and alter this global cycle.

• Agricultural landRelated: Fertilizer use on farmland alters nitrogen flows and can pollute air and water.