@article{PAR00009234,
  title = {{E}fficiency of a grass buffer strip for limiting diuron losses from an uphill vineyard towards surface and subsurface waters},
  author = {{L}acas, {J}. {G}. and {C}arluer, {N}. and {V}oltz, {M}arc},
  editor = {},
  language = {{ENG}},
  abstract = {{C}rass buffer strips limit the transfer of pesticides from cultivated fields to rivers. {T}hese solutions are generally efficient at reducing polluted surface flows, mainly by infiltration of the soil, raising the question of the fate of the infiltrated pollutants. {A}n environmental evaluation was conducted on the efficiency of a grass strip receiving diuron-contaminated water from an uphill vineyard in {F}rance. {D}uring two runoff events, the following measurements were taken: surface inflow and outflow with {V}enturi flumes, vertical percolated flow below the root layer (0-50 cm), and variations in water and solute content of the root layer. {O}ne runoff event occurred under natural rainfall conditions, while the other runoff event was artificially provoked with water doped by diuron and bromide. {F}or the natural runoff event, representative of medium intensity events, 94% of the diuron was retained in the root layer, whereas 2% left the grass strip by surface runoff and 4% left the grass strip in the water percolating under the root zone. {F}or the artificial event, representative of intense runoff events, more than half of the incoming diuron was retained by the grass strip, whereas 24% and 18% of it were transferred by surface runoff and percolation, respectively. {T}hese results showed that the capacity of the root layer to retain diuron was highly significant despite a large percolation flux. {H}owever, for large runoff events, surface and subsurface losses can still be considerable, up to 40% of the pesticide load entering the strip.},
  keywords = {infiltration ; percolation ; pesticide ; sorption ; surface runoff},
  booktitle = {},
  journal = {{P}edosphere},
  volume = {22},
  numero = {4},
  pages = {580--592},
  ISSN = {1002-0160},
  year = {2012},
  URL = {https://www.documentation.ird.fr/hor/{PAR}00009234},
}