Seasonal variability in potential and actual yields of winter wheat in China

Understanding the historical variability of winter wheat yield in China can provide insights into future wheat production security and adaptation measures. In this study, two indices, i.e., yield gap percentage (YGpercentage) and yield variation difference (VD), were employed to investigate the winter wheat relatively yield level and yield variability from 1980 to 2010 in 1340 counties in China using a county-level dataset and a crop model...