@article{fdi:010077390,
  title = {{U}nraveling the impacts of droughts and agricultural intensification on the {A}ltiplano water resources},
  author = {{S}atg{\'e}, {F}r{\'e}d{\'e}ric and {H}ussain, {Y}. and {X}avier, {A}. and {Z}ola, {R}. {P}. and {S}alles, {L}. and {T}imouk, {F}ranck and {S}eyler, {F}r{\'e}d{\'e}rique and {G}arnier, {J}. and {F}rappart, {F}. and {B}onnet, {M}arie-{P}aule},
  editor = {},
  language = {{ENG}},
  abstract = {{D}uring the last decades, agriculture has drastically increased over the {S}outh {A}merican {A}ndean {P}lateau ({A}ltiplano), resulting in extensive changes in land cover from native vegetation to essentially {Q}uinoa crop. {A}long with climatic variability, these land use changes appear as a catalyst in worsening the already existing drought events and water scarcity processes. {H}ence, understanding their relative contributions to the regional desertification process is crucial for sustainable water-use adaptation, but also is quite ambiguous because of water resource data scarcity over the {A}ltiplano. {T}herefore, in the present study, an attempt to measure the impact of severe droughts and agricultural intensification on the water resources has been made using remote sensing datasets. {T}he first step was dedicated to the validation of newly released {CHIRPS} v.2 precipitation and {GLEAM} v.3 potential evapotranspiration products by comparing their estimates with the results obtained from gauges data. {T}hen, the {S}tandardized {P}recipitation {I}ndex ({SPI}) was used to describe past hydro-meteorological drought events in terms of their spatial extent, duration, intensity and their impacts on the regional water resources. {F}inally, the dynamic trends in the spatial extent of the {Q}uinoa crop and the meteorological conditions derived from {CHIRPS} v.2 and {GLEAM} v.3 were compared with the {V}egetation {C}ondition {I}ndex ({VCI}) and the {T}otal {W}ater {S}torage ({TWS}) derived from {AVHRR} and {GRACE} data respectively, to observe the respective influence of agriculture and climate variability on the regional hydrological system. {A} significant increase in {Q}uinoa crop extent is observed from 2001 which corresponds to a significant decrease in regional {VCI} and {TWS}. {B}ased on this trend, agriculture appears as a contributing factor in the water scarcity process over the {A}ltiplano. {T}he outcomes of this study will contribute to local decision making for a better water management and hydro-meteorological monitoring system.},
  keywords = {{C}limate ; {A}griculture ; {W}ater scarcity ; {H}ydrological drought ; {R}emote sensing ; {BOLIVIE} ; {PEROU} ; {ANDES}},
  booktitle = {},
  journal = {{A}gricultural and {F}orest {M}eteorology},
  volume = {279},
  numero = {},
  pages = {art. 107710 [13 p.]},
  ISSN = {0168-1923},
  year = {2019},
  DOI = {10.1016/j.agrformet.2019.107710},
  URL = {https://www.documentation.ird.fr/hor/fdi:010077390},
}