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Climate Change Impacts on Water Supply and Demand in Rheraya Watershed (Morocco), with Potential Adaptation Strategies
Department of Environmental Sciences, Faculty of Sciences Semlalia, Cadi Ayyad University, B.P. 2390, Boulevard Prince My Abdellah, Marrakesh 40000, Morocco
Department of Hydrogeology, Steinmann Institute, Bonn University, Nussallee 8, Bonn 53115, Germany
Regional Observatory of the Environment and Sustainable Development, Moroccan State Secretariat for Environment, Avenue Yacoub El Marini, Gueliz, Marrakech 40000, Morocco
* Author to whom correspondence should be addressed.
Received: 12 October 2011; in revised form: 5 December 2011 / Accepted: 31 December 2011 / Published: 9 January 2012
Abstract: Rheraya watershed already suffers from the impacts of climate variability and will be further affected by climate change. Severe water shortages and extremely fragile ecological conditions necessitate careful attention to water resources management. The aim of this study is to analyze Rheraya’s future water situation under different scenarios of socio-economic development and climate change until 2100. The Water Evaluation and Planning System model (WEAP) has been applied to estimate the current water demands and the increased water demands resulting from climate change. WEAP was calibrated using meteorological and demand observations, then, updated with present-day and future climatic conditions using the Statistical Down-scaling Model with two projections (A2, B2) of the Intergovernmental Panel on Climate Change. Those projections show an increase in temperature of about 2–3 °C and a reduction in precipitation of 40–60% with respect to baseline. The results show that the pressure on Rheraya’s water resources will increase, leading to greater competition for surface water, and that domestic, tourist, livestock and agricultural demands will not be met by the year 2100. The Results also demonstrate that the assessments of adaptation strategies proposed by decision makers are effective but not sustainable for the watershed.
Keywords: climate change; water management; adaptation strategies; Rheraya watershed; WEAP; scenario development
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MDPI and ACS Style
Rochdane, S.; Reichert, B.; Messouli, M.; Babqiqi, A.; Khebiza, M.Y. Climate Change Impacts on Water Supply and Demand in Rheraya Watershed (Morocco), with Potential Adaptation Strategies. Water 2012, 4, 28-44.
Rochdane S, Reichert B, Messouli M, Babqiqi A, Khebiza MY. Climate Change Impacts on Water Supply and Demand in Rheraya Watershed (Morocco), with Potential Adaptation Strategies. Water. 2012; 4(1):28-44.
Rochdane, Saloua; Reichert, Barbara; Messouli, Mohammed; Babqiqi, Abdelaziz; Khebiza, Mohammed Yacoubi. 2012. "Climate Change Impacts on Water Supply and Demand in Rheraya Watershed (Morocco), with Potential Adaptation Strategies." Water 4, no. 1: 28-44.