气候变化领域集成服务门户(CCPortal): Assessment of food trade impacts on water; food; and land security in the MENA region

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DOI	10.5194/hess-23-557-2019
	Assessment of food trade impacts on water; food; and land security in the MENA region
	Lee S.-H.; Mohtar R.H.; Yoo S.-H.
发表日期	2019
ISSN	1027-5606
起始页码	557
结束页码	572
卷号	23 期号:1
英文摘要	The Middle East and North Africa (MENA) region has the largest water deficit in the world. It also has the least food self-sufficiency. Increasing food imports and decreasing domestic food production can contribute to water savings and hence to increased water security. However, increased domestic food production is a better way to achieve food security, even if irrigation demands an increase in accordance with projected climate changes. Accordingly, the trade-off between food security and the savings of water and land through food trade is considered to be a significant factor for resource management, especially in the MENA region. Therefore, the aim of this study is to analyze the impact of food trade on food security and water-land savings in the MENA region. We concluded that the MENA region saved significant amounts of national water and land based on the import of four major crops, namely, barley, maize, rice, and wheat, within the period from 2000 to 2012, even if the food self-sufficiency is still at a low level. For example, Egypt imported 8.3 million t yrĝ'1 of wheat that led to 7.5 billion m3 of irrigation water and 1.3 million ha of land savings. In addition, we estimated the virtual water trade (VWT) that refers to the trade of water embedded in food products and analyzed the structure of VWT in the MENA region using degree and eigenvector centralities. The study revealed that the MENA region focused more on increasing the volume of virtual water imported during the period 2006-2012, yet little attention was paid to the expansion of connections with country exporters based on the VWT network analysis. © 2018 The Royal Society of Chemistry.
语种	英语
scopus关键词	Climate change; Economic and social effects; Food supply; Water resources; Eigenvector centralities; Food production; Irrigation waters; Middle East and North Africa; Resource management; Virtual water trade; Water - savings; Water security; Irrigation; agricultural trade; assessment method; climate change; eigenvalue; food; food production; food security; irrigation; self sufficiency; water; water management; water planning; Egypt; Middle East; North Africa; Hordeum; Triticum aestivum; Zea mays
来源期刊	Hydrology and Earth System Sciences
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/159777
作者单位	Lee, S.-H., Research Institute for Humanity and Nature (RIHN), Motoyama 457-4, Kamigamo, Kita-ku, Kyoto, 603-8047, Japan; Mohtar, R.H., Department of Biological and Agricultural Engineering, Texas Ag andg M University, College Station, United States, Faculty of Agricultural and Food Sciences, American University of Beirut, Beirut, Lebanon; Yoo, S.-H., Department of Rural and Biosystems Engineering, Chonnam National University, Gwangju, South Korea
推荐引用方式 GB/T 7714	Lee S.-H.,Mohtar R.H.,Yoo S.-H.. Assessment of food trade impacts on water; food; and land security in the MENA region[J],2019,23(1).
APA	Lee S.-H.,Mohtar R.H.,&Yoo S.-H..(2019).Assessment of food trade impacts on water; food; and land security in the MENA region.Hydrology and Earth System Sciences,23(1).
MLA	Lee S.-H.,et al."Assessment of food trade impacts on water; food; and land security in the MENA region".Hydrology and Earth System Sciences 23.1(2019).