The effect of physical back-diffusion of 13CO2 tracer on the coupling between photosynthesis and soil CO2 efflux in grassland.

@article{Burri2014TheEO,
  title={The effect of physical back-diffusion of 13CO2 tracer on the coupling between photosynthesis and soil CO2 efflux in grassland.},
  author={Susanne Burri and Patrick D. J. Sturm and Thomas Baur and Matti Barthel and Alexander Knohl and Nina Buchmann},
  journal={Isotopes in environmental and health studies},
  year={2014},
  volume={50 4},
  pages={
          497-513
        }
}
Pulse labelling experiments provide a common tool to study short-term processes in the plant-soil system and investigate below-ground carbon allocation as well as the coupling of soil CO(2) efflux to photosynthesis. During the first hours after pulse labelling, the measured isotopic signal of soil CO(2) efflux is a combination of both physical tracer diffusion into and out of the soil as well as biological tracer release via root and microbial respiration. Neglecting physical back-diffusion can… CONTINUE READING
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