The rate of progression and stability of progressive nitrogen limitation at elevated atmospheric CO2 in a grazed grassland over 11 years of Free Air CO2 enrichment

@article{Newton2010TheRO,
  title={The rate of progression and stability of progressive nitrogen limitation at elevated atmospheric CO2 in a grazed grassland over 11 years of Free Air CO2 enrichment},
  author={Paul C D Newton and Mark Lieffering and W. M. Saman D. Bowatte and Shona C. Brock and Chris L. Hunt and Phil W. Theobald and Des J. Ross},
  journal={Plant and Soil},
  year={2010},
  volume={336},
  pages={433-441}
}
A decline in the availability of nitrogen (N) for plant growth (progressive nitrogen limitation or PNL) is a feedback that could constrain terrestrial ecosystem responses to elevated atmospheric CO2. Several long-term CO2 enrichment experiments have measured changes in plant and soil pools and fluxes consistent with PNL but evidence for PNL in grasslands is limited. In an 11 year Free Air CO2 Enrichment (FACE) experiment on grazed grassland we found the amount of N harvested in aboveground… CONTINUE READING

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