Research
From stimulation to suppression: How nitrogen addition changes soil respiration over time
Phys.org ·
The Brief
- A study reports that nitrogen addition to soils first stimulates and later suppresses soil respiration, the efflux of CO₂ from soils.
- Soil respiration is driven by root and microbial activity and is one of the largest terrestrial carbon fluxes.
- The source excerpt is truncated and does not give the study's methods, sites, or quantitative results.
Why it matters
Soil respiration strongly influences net carbon sequestration, so how nitrogen inputs change its trajectory over time matters for carbon budget and climate modelling.
Who’s affected
- soil scientists and ecologists
- climate researchers working on terrestrial carbon cycling
- #soil respiration
- #nitrogen addition
- #carbon cycle
- #soil microbiology
- #ecosystems
Soil respiration (Rs), the efflux of CO₂ from soils to the atmosphere driven by root and microbial activity, is one of the largest terrestrial carbon fluxes and a primary determinant of net carbon sequestration. The important role of nitrogen in driving terrestrial carbon…
Timeline
Biology News report on the study published
Biology News - Evolution, Cell theory, Gene theory, Microbiology, Biotechnology
From stimulation to suppression: How nitrogen addition changes soil respiration over time