2019 Volume 45 Issue 2 Pages 293-298
We examined the species composition of soil seed banks of Quercus serrata secondary forest by germination test, which was reserved in artificial banking covered with plastic sheet for 6 years. The seed density was 131.4 seeds/L and 52.7 species. The dominant species in the seed banks were Eurya japonica var. japonica, Mallotus japonicus, Solidago altissima, Hypericum laxum, Pseudognaphalium affine, Cyperus flaccidus and others, and these dominant species are common in the seed bank of Q. serrata forests. Compared to the species composition of the seed banks non-reserved and reserved for one year, the soil reserved for 6 years did not contain some species such as Alnus japonica and Erigeron philadelphicus. The seeds of these species would lose their germinability for 6 years, since the period of dormancy is different from species. Therefore, our forest topsoil reserved for 6 years could have ability for the material of revegetation, because the soil had as much as woody buried seeds as the common soil seed bank in Q. serrata forests, however, it is required to consider sufficiently that some species may lose their germinability.
