You are what you eat, at least according to theChinese. This simple concept has complex,ancient - and agricultural - origins.Followed by farmers since time immemorial,Chinas traditional lunar calendar is dividedinto 24 sections, each marking a particularseasonal change. Fluctuations in temperature,dry and rainy periods, and growing cycles are alldemarcated to correspond with these solar terms(referred to as jieqi). The calendar continues toplay an important role in Chinese agriculture eventoday, thousands of years after it was first adoptedby farmers in and around the Yellow River region.