Kauaʻi record · KCA-EP-0020
Biological nitrogen fixation
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About Biological nitrogen fixation
Conversion of atmospheric N₂ to biologically usable nitrogen by symbiotic or free-living microbes.
Names and classification
- Other names
- biological nitrogen fixation
- Family
- Nutrient Cycling & Retention
- Record type
- ecological_process
Habitat and ecology
- Ecological role
- Supports Atlas reasoning about ecosystem function, dependencies, threats, conservation leverage points and cross-module consequences.
Process and seasonal context
- Definition
- Conversion of atmospheric N₂ to biologically usable nitrogen by symbiotic or free-living microbes.
- Drivers
- organic inputs; redox; flow; biota; land cover
- Inputs
- N; P; organic matter; microbial substrates
- Outputs
- bioavailable nutrients; gaseous losses; retained nutrients; exported nutrients
- Spatial scales
- microhabitat → watershed → coastal ocean
- Temporal scales
- hours → years
- Validity and limits
- Context-specific; do not extrapolate across habitat, season, elevation, salinity or disturbance state without evidence.
Sources and further reading
- From Land to Sea: stream flow, nutrients, organic matter and organisms
- Can the impact of canopy trees on soil and understory be altered using litter additions?
- Influence of invasive species on carbon storage in Hawaiʻi’s ecosystems
- Hanalei National Wildlife Refuge
- Hanalei NWR Wetlands Management and Waterbird Conservation Plan