Nitrate fluxes to groundwater under citrus orchards in a Mediterranean climate: observations, calibrated models, simulations and agro-hydrological conclusions.

@article{Kurtzman2013NitrateFT,
  title={Nitrate fluxes to groundwater under citrus orchards in a Mediterranean climate: observations, calibrated models, simulations and agro-hydrological conclusions.},
  author={Daniel J. Kurtzman and Roi H. Shapira and Asher Bar-Tal and Pinchas Fine and David Russo},
  journal={Journal of contaminant hydrology},
  year={2013},
  volume={151},
  pages={93-104}
}
Nitrate contamination of groundwater under land used for intensive-agriculture is probably the most worrisome agro-hydrological sustainability problem worldwide. Vadose-zone samples from 0 to 9 m depth under citrus orchards overlying an unconfined aquifer were analyzed for variables controlling water flow and the fate and transport of nitrogen fertilizers. Steady-state estimates of water and NO3-N fluxes to groundwater were found to vary spatially in the ranges of 90-330 mm yr(-1) and 50-220 kg… CONTINUE READING