@article{PAR00020504,
  title = {{I}rrigation-triggered landslides in a {P}eruvian desert caused by modern intensive farming},
  author = {{L}acroix, {P}ascal and {D}ehecq, {A}. and {T}aipe, {E}.},
  editor = {},
  language = {{ENG}},
  abstract = {{I}ntensification of agriculture leads to stress on the environment and subsequently can have strong societal and ecological impacts. {I}n deserts, areas of very high sensitivity to land-use changes, these local-scale impacts are not well documented. {O}n the arid southwestern coast of {P}eru, several vast irrigation programmes were developed in the 1950s on the flat detritic plateau surrounding narrow valleys to supply new farming areas. {W}e document the long-term effects of irrigation on the erosion of arid deserts in the {V}itor and {S}iguas valleys, south {P}eru, using 40 yr of satellite data. {W}e demonstrate that irrigation initiated very large slow-moving landslides, affecting one-third of the valleys. {T}heir kinematics present periods of quiescence and short periods of rapid activity, corresponding to landslide destabilization by their headscarp retrogression. {T}his analysis suggests that the landslide motion continues long after their initiation by irrigations. {T}hose landslides affect the fertile valley floors, leading to the destruction of villages and agricultural areas. {W}e conclude that modern intensive farming can strongly impact traditional agriculture in desert areas where water management is particularly critical.},
  keywords = {{PEROU} ; {ZONE} {ARIDE}},
  booktitle = {},
  journal = {{N}ature {G}eoscience},
  volume = {13},
  numero = {1},
  pages = {56--60 + 2 p.},
  ISSN = {1752-0894},
  year = {2020},
  DOI = {10.1038/s41561-019-0500-x},
  URL = {https://www.documentation.ird.fr/hor/{PAR}00020504},
}