According to the environment of
ecological areas in China,three typical ecological areas of(cold area,warm area and hot area)
low temperature grain storage were divided in this study.The requests to heat insulation and gastightness of warehouse for
low temperature grain storage and an optimum scheme of low temperature grain storage for three
ecological areas were provided respectively.The optimum mode of low temperature grain storage for cold area was chilling grain bulk by natural or mechanical aeration in winter,heat insulating the surface of grain bulk in summer and properly controlling rise in temperature;for warm area,chilling grain bulk by mechanical aeration in winter,strictly heat insulating the surface of grain bulk in summer and necessary control of rise in temperature;for hot area,chilling grain by mechanical aeration or grain cooler in winter,strictly heat insulating the surface of grain bulk in summer and indispensablely controlling temperature increase of the grain by grain cooler.The flow charts of optimum scheme for low temperature grain storage in three ecological areas were provided respectively in this paper.