Can Egypt become self-sufficient in wheat?

被引:68
|
作者
Asseng, Senthold [1 ]
Kheir, Ahmed M. S. [1 ,2 ]
Kassie, Belay T. [1 ]
Hoogenboom, Gerrit [1 ]
Abdelaal, Aly I. N. [2 ,3 ]
Haman, Dorota Z. [1 ]
Ruane, Alex C. [4 ]
机构
[1] Univ Florida, Agr & Biol Engn Dept, Gainesville, FL 32611 USA
[2] Agr Res Ctr, Soils Water & Environm Res Inst, Giza, Egypt
[3] Minist Agr & Land Reclamat, Dokki, Egypt
[4] NASA, Goddard Inst Space Studies, New York, NY 10025 USA
来源
ENVIRONMENTAL RESEARCH LETTERS | 2018年 / 13卷 / 09期
关键词
wheat; climate change impact; food security; water demand; adaptation; CLIMATE-CHANGE; ENRICHMENT FACE; ELEVATED CO2; WIDE-RANGE; TEMPERATURE; MODEL; GROWTH; PRODUCTIVITY; PERFORMANCE; YIELD;
D O I
10.1088/1748-9326/aada50
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Egypt produces half of the 20 million tons of wheat that it consumes with irrigation and imports the other half. Egypt is also the world's largest importer of wheat. The population of Egypt is currently growing at 2.2% annually, and projections indicate that the demand for wheat will triple by the end of the century. Combining multi-crop and -climate models for different climate change scenarios with recent trends in technology, we estimated that future wheat yield will decline mostly from climate change, despite some yield improvements from new technologies. The growth stimulus from elevated atmospheric CO2 will be overtaken by the negative impact of rising temperatures on crop growth and yield. An ongoing program to double the irrigated land area by 2035 in parallel with crop intensification could increase wheat production and make Egypt self-sufficient in the near future, but would be insufficient after 2040s, even with modest population growth. Additionally, the demand for irrigation will increase from 6 to 20 billion m(3) for the expanded wheat production, but even more water is needed to account for irrigation efficiency and salt leaching (to a total of up to 29 billion m(3)). Supplying water for future irrigation and producing sufficient grain will remain challenges for Egypt.
引用
收藏
页数:11
相关论文
共 50 条
  • [31] Steve Colson Self-Sufficient Gifts
    Murph, John
    [J]. DOWN BEAT, 2010, 77 (04): : 25 - 25
  • [32] Self-sufficient System for NOx Reduction
    Zahour, Jiri
    Krivka, Jindrich
    Kosturik, Kamil
    Fredholm, Sten
    [J]. 2015 23RD TELECOMMUNICATIONS FORUM TELFOR (TELFOR), 2015, : 646 - 649
  • [33] Self-sufficient superpower looking for a partner
    Hönicke, M
    [J]. INTERNATIONALE POLITIK, 2000, 55 (10): : 41 - 42
  • [34] "Self-sufficient" Russians and their life priorities
    Gorshkov, M. K.
    Sedova, N. N.
    [J]. SOTSIOLOGICHESKIE ISSLEDOVANIYA, 2015, (12): : 4 - +
  • [35] China can be self-sufficient in maize production by 2030 with optimal crop management
    Ning Luo
    Qingfeng Meng
    Puyu Feng
    Ziren Qu
    Yonghong Yu
    De Li Liu
    Christoph Müller
    Pu Wang
    [J]. Nature Communications, 14
  • [36] NORWEGIANS AIM FOR A SELF-SUFFICIENT INDUSTRY
    STEWART, AIB
    [J]. WORLD FISHING, 1969, 18 (02): : 27 - &
  • [37] Energy self-sufficient Sensors for Aircraft
    Ebling, Dirk
    [J]. ATP EDITION, 2009, (10-11): : 8 - 8
  • [38] THE SELF-SUFFICIENT TEXT IN NIETZSCHE AND KIERKEGAARD
    PLETSCH, C
    [J]. YALE FRENCH STUDIES, 1984, (66) : 160 - 188
  • [39] China,More than Self-Sufficient
    Maggie
    [J]. China's Foreign Trade, 2008, (09) : 14 - 14
  • [40] ASIA BECOMING SELF-SUFFICIENT IN PETROCHEMICALS
    LAYMAN, P
    [J]. CHEMICAL & ENGINEERING NEWS, 1991, 69 (44) : 14 - 15