globalchange  > 气候变化与战略
DOI: 10.1007/s12517-020-5180-8
论文题名:
Climate change impact assessment on a carbonate aquifer under semi-arid climate: example of the Cenomanian-Turonian aquifer within Meskala-Ouazzi region (Essaouira Basin, Morocco)
作者: Ouhamdouch S.; Bahir M.; Ouazar D.
刊名: Arabian Journal of Geosciences
ISSN: 18667511
出版年: 2020
卷: 13, 期:4
语种: 英语
英文关键词: Carbonate aquifer ; Global warming ; Groundwater quality ; Semi-arid environment ; Statistical tests
Scopus关键词: aquifer ; carbonate ; Cenomanian-Turonian boundary ; climate change ; environmental impact assessment ; global warming ; groundwater ; infiltration ; rainfall ; semiarid region ; statistical analysis ; water quality ; Atlantic Ocean ; Essaouira Basin ; Marrakech-Safi ; Morocco ; Morocco
英文摘要: This study aims to assess the climate change impact on water resources of the Essaouira Basin (Morocco). The rainfall index shows a significant interannual variability which is organized in an alternation of the excess period (1940–1956), two deficit periods (1956–1986 and 1998–2015) separated by a normal period (1986–1998). The statistical approach reveals the presence of a break in 1956 with a rainfall deficit of 14.45% and that the temperatures show a general upward trend with a warming of 2.3 °C for mean and minimum temperature and of 2.8 °C for maximum and this for the period 1987–2014. Flow rates show a slight upward trend that could be explained by a short and intense rainfall that characterizes our semi-arid environment. Concerning the piezometric approach, it shows a general descent in piezometric surface for the period of observation (reached 12 m in some wells). The downward evolution of piezometric surface due to the decrease of precipitation has resulted in the spatial and temporal degradation of the groundwater quality. A decrease in nitrate levels has been noted; this could be explained by the downward trend in precipitation by favoring the retention of nitrates in the superficial parts of the soil and by limiting their infiltration to the aquifer. © 2020, Saudi Society for Geosciences.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/159540
Appears in Collections:气候变化与战略

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作者单位: Laboratoire de Géosciences et Environnement, Département de Géologie, Ecole Normale Supérieure, Université Cadi Ayyad, Marrakech, Morocco; IWRI Mohammed VI Polytechnic University, Hay My Rachid, Ben Guerir, 43150, Morocco

Recommended Citation:
Ouhamdouch S.,Bahir M.,Ouazar D.. Climate change impact assessment on a carbonate aquifer under semi-arid climate: example of the Cenomanian-Turonian aquifer within Meskala-Ouazzi region (Essaouira Basin, Morocco)[J]. Arabian Journal of Geosciences,2020-01-01,13(4)
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