Research on Characteristics of Seed Rain in Fagus longipetiolata

During September 14th and November 28th2018, 42 seed trees of Fagus longipetiolata with different DBH were selected at natural forest in Jian’ou, Fujian province for seed collection.The results showed that seed rain continued from mid-September to late November for a total of 76 days.The temporal characteristics of seed rain were changed with time; the peak of viable seed wasatthe later stage of seed rain.The seed rain density of seed trees with 40 cm≤D＜50 cm and 50 cm≤D＜60 cm was higher than that with D＜40 cm and D≥60 cm.The experiment demonstrated that seed trees had seed rain density more than 200 seeds/m2, the spatially distribution was aggregated, and that less than 150 seeds/m2, the spatially distribution was random.