Water-Saving Strategies For Irrigation Agriculture In Saudi Arabia
INTERNATIONAL JOURNAL OF WATER RESOURCES DEVELOPMENT(2017)
摘要
Agriculture policy changes in Saudi Arabia are investigated by water footprint (WF) assessment. WF is calculated with the model SPARE:WATER for 3758 irrigated sites. The WF of agriculture areas (WFarea, km(3)yr(-1)) has decreased (-17%) since the year 2000 to 13.84km(3)yr(-1) (2011), which is mainly caused by the reduction of cropland by -33%. Nevertheless, water consumption per field has increased about 16%, which can be attributed to the cultivation of fodder crops (+12%). A scenario analysis revealed that a shifting cropping pattern towards less fodder crops reduces WFarea by -15%, and implementing improved irrigation technology leads to a combined reduction of up to 32%
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关键词
SPARE:WATER, water footprint, agriculture, irrigation, Saudi Arabia
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