# From stimulation to suppression: How nitrogen addition changes soil respiration over time

Source: [Biology News - Evolution, Cell theory, Gene theory, Microbiology, Biotechnology](https://phys.org/news/2026-11-suppression-nitrogen-addition-soil-respiration.html) · 2026-11-13 · Life
Page: https://themorning.science/story/from-stimulation-to-suppression-how-nitrogen-addition-changes-soil-respiration-o-3396a35a9f42f791
Kind: research · Impact: low

## In 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.

## Timeline

- 2026-11-13: Biology News report on the study published

## Coverage

- [From stimulation to suppression: How nitrogen addition changes soil respiration over time](https://phys.org/news/2026-11-suppression-nitrogen-addition-soil-respiration.html) — Biology News - Evolution, Cell theory, Gene theory, Microbiology, Biotechnology, 2026-11-13

Tags: soil respiration, nitrogen addition, carbon cycle, soil microbiology, ecosystems

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Brief generated by AI (claude-haiku-5-5) from the reporting listed under Coverage. Headlines belong to their publishers. The Morning Science – https://themorning.science