Reckoning wheat yield trends

Datos Bibliográficos

ID15544162
AutoresM Lin (0000-0002-4968-0620), Lin Meng (0000-0003-4351-6923, Harvard University, autor de correspondencia), Peter Huybers (0000-0002-3734-8145, Planetary Science Institute)
Año2012
Volumen7
Número2
Páginas024016-024016
Fecha de publicación2012-05-16
Peer ReviewedSí
Open AccessSí
TipoARTICLE
RevistaEnvironmental Research Letters (JOURNAL)
Identificadores de la revistaISSN: 1748-9326 • E-ISSN: 1748-9326
EditorialIOP Publishing (PUBLISHER • GB)
DOI10.1088/1748-9326/7/2/024016
OpenAlexW1988773341
IdiomaEN
Citas recibidas12
Referencias citadas15

Wheat yields have increased approximately linearly since the mid-twentieth century across the globe, but stagnation of these trends has now been suggested for several nations. We present a new statistical test for whether a yield time series has leveled off and apply it to wheat yield data from 47 different regions to show that nearly half of the production within our sample has transitioned to level trajectories. With the major exception of India, the majority of leveling in wheat yields occurs within developed nations—including the United Kingdom, France and Germany—whose policies appear to have disincentivized yield increases relative to other objectives. The effects of climate change and of yields nearing their maximum potential may also be important

Agricultural economics · Biology · Climate change · Climatology · Economics · Geography · Globe · Physical geography · Yield (engineering · Agricultural risk and resilience · Climate change impacts on agriculture · Crop Yield and Soil Fertility · Environmental Science · Ecology · Geology