Abstract: This paper discusses the complicated relationships between biotic and abiotic factors in grain reserve.Based on the differentiation of communities in grain reserves with location and dura-tion and the succession of communities in different biotopes of grain piles,it's consideredthat our present reserving measures such as“low oxygen”,“low temperature”and“rotatedreserving”are of important ecological meanings.

Key words: Castanopsis kawakamii, New self adaptive model, Genetic algorithm