Increased plant growth from nitrogen addition should conserve phosphorus in terrestrial ecosystems.

  title={Increased plant growth from nitrogen addition should conserve phosphorus in terrestrial ecosystems.},
  author={Michael P. Perring and Lars O. Hedin and Simon A. Levin and Megan E. McGroddy and Claire de Mazancourt},
  journal={Proceedings of the National Academy of Sciences of the United States of America},
  volume={105 6},
Inputs of available nitrogen (N) to ecosystems have grown over the recent past. There is limited general understanding of how increased N inputs affect the cycling and retention of other potentially limiting nutrients. Using a plant-soil nutrient model, and by explicitly coupling N and phosphorus (P) in plant biomass, we examine the impact of increasing N supply on the ecosystem cycling and retention of P, assuming that the main impact of N is to increase plant growth. We find divergent… CONTINUE READING


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