@article{fdi:010085923, title = {{M}ulti-decadal analysis of water resources and agricultural change in a {M}editerranean semiarid irrigated piedmont under water scarcity and human interaction}, author = {{O}uassanouan, {Y}. and {F}akir, {Y}. and {S}imonneaux, {V}incent and {K}harrou, {M}. {H}. and {B}ouimouass, {H}. and {N}ajar, {I}. and {B}enrhanem, {M}. and {S}guir, {F}. and {C}hehbouni, {A}bdelghani}, editor = {}, language = {{ENG}}, abstract = {{M}editerranean piedmonts are an important hydro-agricultural systems. {T}hey constitute the junction between the mountains, where the streamflow is generated, and the surrounding plains, where the water is used. {I}n {M}orocco, these traditional systems extend largely along the {H}igh {A}tlas {M}ountains. {Y}et, changing conditions in the {M}editerranean basin as well as recurrent droughts in recent decades remain poorly understood in terms of hydrological and agricultural impacts, particularly in traditional hydro-agro-systems. {T}he combined effects of climate variability and ineffective management of water resource dynamics may lead to increased water scarcity in these regions. {T}he present work aims to assess the effects of climate variability and associated agricultural changes on water resources in a traditional irrigated piedmont of the {M}oroccan {H}igh {A}tlas. {T}o that end, a trend analysis, together with change points detection, was carried out on annual and monthly precipitation, and streamflow from 1965 to 2018. {T}hen, the standardized precipitation index ({SPI}) was employed to identify meteorological droughts. {A}lso, groundwater, and spring discharge data were analyzed and discussed from 1973 to 2021. {SPI} outcomes revealed three major droughts, in 1981-1988, 1999-2008, and 2013-2018. {A}lthough the precipitation data showed no significant trend, except for {T}ahannaout station, the average annual precipitation over the piedmont area decreased by 28%. {S}imilarly, streamflow decreased significantly by almost 40% for all stations, as did the {A}bainou spring's discharge. {C}onsistent with that, groundwater level has declined dramatically over the past decades in the downstream piedmont. {T}hese decreases in water cycle components were tightly aligned with droughts. {Y}et, irrigation diversions were maintained in both dry and wet periods. {P}aradoxically, this decrease in water resources was associated with an agricultural transition from seasonal crops (cereals) to perennial crops (olive trees). {T}his conversion is likely to amplify the water shortage, leading to groundwater resources overexploitation to satisfy the growing agricultural demand.}, keywords = {{M}editerranean region ; {P}recipitation ; {S}tream flow ; {G}roundwater ; {A}griculture ; {T}rends analysis ; {MAROC} ; {ZONE} {SEMIARIDE} ; {TENSIFT} {BASSIN} {VERSAN} ; {ZONE} {MEDITERRANEENNE}}, booktitle = {}, journal = {{S}cience of the {T}otal {E}nvironment}, volume = {834}, numero = {}, pages = {155328 [15 ]}, ISSN = {0048-9697}, year = {2022}, DOI = {10.1016/j.scitotenv.2022.155328}, URL = {https://www.documentation.ird.fr/hor/fdi:010085923}, }