抄録
From the taxonomic composition of natural woods, construction woods, and wooden artifacts excavated at the Domekiyatsu and Kaminarishita sites in Chiba Prefecture, forest vegetation was reconstructed and management and use of forest resources was examined for the initial and the late to final Jomon periods. At the Kaminarishita site of the initial Jomon period, Quercus sect. Prinus, Celtis, and Aphananthe aspera dominated among natural woods and were used for various tools and processed woods. The wood of these taxa and Quercus sect. Aegilops is heavier and sturdier than that of Castanea crenata commonly used in later periods, and its use derived from trees 10 to 53 cm in diameter indicated the existence of mature felling and processing techniques in this period. At the Domekiyatus site of the late to final Jomon periods, Alnus sect. Gymnothyrsus and Fraxinus sect. Fraxinaster dominated in the lowland forest, and Castanea crenata was preferentially used for lowland constructions, as at the Akayamajinya-ato site. Artificially managed resources of Castanea crenata probably provided the timber used for the lowland constructions, and analyses of wood and pollen at the Kaminarishita site implied that such management of resources of Castanea crenata already existed in the initial Jomon period.
