Export of nitrogenous compounds due to incomplete cycling within biological soil crusts of arid lands.

@article{Johnson2007ExportON,
  title={Export of nitrogenous compounds due to incomplete cycling within biological soil crusts of arid lands.},
  author={Shannon L. Johnson and Susanne Neuer and Ferr{\'a}n Garc{\'i}a-Pichel},
  journal={Environmental microbiology},
  year={2007},
  volume={9 3},
  pages={680-9}
}
Second only to water among limiting factors, nitrogen controls the fertility of most arid regions. Where dry and wet depositions are weak, as in the western US deserts, N inputs rely heavily on biological N(2) fixation. Topsoil cyanobacterial communities known as biological soil crusts (BSCs) are major N(2) fixation hot spots in arid lands, but the fate of… CONTINUE READING