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Impacts of El Nino Southern Oscillation on the Global Yields of Major Crops
- Source :
- Nature Communications.
- Publication Year :
- 2014
- Publisher :
- United States: NASA Center for Aerospace Information (CASI), 2014.
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Abstract
- The monitoring and prediction of climate-induced variations in crop yields, production and export prices in major food-producing regions have become important to enable national governments in import-dependent countries to ensure supplies of affordable food for consumers. Although the El Nino/Southern Oscillation (ENSO) often affects seasonal temperature and precipitation, and thus crop yields in many regions, the overall impacts of ENSO on global yields are uncertain. Here we present a global map of the impacts of ENSO on the yields of major crops and quantify its impacts on their global-mean yield anomalies. Results show that El Nino likely improves the global-mean soybean yield by 2.15.4 but appears to change the yields of maize, rice and wheat by -4.3 to +0.8. The global-mean yields of all four crops during La Nina years tend to be below normal (-4.5 to 0.0).Our findings highlight the importance of ENSO to global crop production.
- Subjects :
- Earth Resources And Remote Sensing
Meteorology And Climatology
Subjects
Details
- Language :
- English
- Database :
- NASA Technical Reports
- Journal :
- Nature Communications
- Publication Type :
- Report
- Accession number :
- edsnas.20140010378
- Document Type :
- Report
- Full Text :
- https://doi.org/10.1038/ncomms4712