Species Richness and Species Composition of the Coppice Forests After Hyogo-model Vegetation Ma Gement

27 Mar Species Richness and Species Composition of the Coppice Forests After Hyogo-model Vegetation Ma Gement

View Original

Abstract

English Abstract

For the purpose of creating the physiognomy of summer-green high forests and increasing species richness, the coppice forests (summer-green secondary forests) were ma ged by cutting lucidophyllous shrubs and bamboo grasses, and by keeping domi nt trees like Pinus densiflora and Quercus serrata intact. Twenty fixed quadrates were set in 13 areas under the Sato-yama Ma gement Project in Hyogo Prefecture, and the vegetation has been investigated for nine years after the ma gement. As a result, the number of species had much increased in the first 5 years after the ma gement, by comparing with those of before this ma gement, except for some areas that species such as Dicranopteris linearis were domi nt. The main species that increased after the ma gement was Fagetea cre tae, which is the domi nt species in the coppice forests. And the ratio of the number of disappeared species against those of appeared were low in Fagetea cre tae, while the ratio were high in Artemisietea princes, Miscanthetea sinensis and Chenopodietea. These species are not the domi nt species in the coppice forests. Therefore, it is considered that Hyogo-model vegetation ma gement is effective in the mainte nce and increasing the species richness in the coppice forests. In addition, the secondary ma gement, when the number of newly appeared species reach plateaus, showed to be adequate to keep the species richness.