Nitrogen-related root variables of trees along an N-deposition gradient in Europe.

@article{Hgberg1998NitrogenrelatedRV,
  title={Nitrogen-related root variables of trees along an N-deposition gradient in Europe.},
  author={Peter H{\"o}gberg and Lars H{\"o}gbom and Helga Schinkel},
  journal={Tree physiology},
  year={1998},
  volume={18 12},
  pages={823-828}
}
We measured fine root N concentration, root in vivo nitrate reductase activity (NRA) and root uptake capacity for (15)NH(4) (+) and (15)NO(3) (-) along an N-deposition gradient from northern Sweden to central Europe, encompassing a variation in N deposition rates of < 5 to about 40 kg N ha(-1) year(-1). The focus was on Picea abies (L.) Karst., but Fagus sylvatica L. in central Europe and Pinus sylvestris L. and Betula spp. in northern Sweden were also studied. We assumed that, with an… CONTINUE READING
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