- 期刊
淇武蘭遺址出土建築柱構件之木材種類鑑定
Wood Species Identification for Post Members of Buildings Excavated from the Chyi-Wuu-Lan Site
摘要
民國90年6月間，宜蘭縣淇武蘭遺址挖掘出許多的木質遺物，這種情況在臺灣出土遺址中是相當罕見的，這可能因遺址位於河道中的關係。為了解遺址木材實際使用情形，以供考古研究，本研究從木材解剖組撤持徵進行木材種類鑑定，但由於出土木質遺物的種類及數量太多，因此僅就部分房屋柱構件進行調查。從14個柱構件樣本中鑑定出6種木材種類，其中4個樣本為針葉樹木材，臺灣肖楠（Calocedrus formosana）2個；臺灣扁柏（Chamaecyparis obtusa var. formosana）及紅槽（Chamaecyparis formosensis）各1個。另外10個樣本為闊葉樹木材，其中以重陽木(Bischofia javanica）數量最多，有8個；九芎（Lagerstroemia subcostata）及單刺儲（白校欑）（Castanopsis stipitata）各1個。整體而言，這些木材會被選作為柱構件來使用，主要考量其適合之機械強度及抗生物劣化性能。此外，重陽木由於耐水濕性能特別好；在水中保存期甚久，適合用於本地區之環境，因此保留下來的數量較多。
並列摘要
Many wood remains were excavated from the Chyi-Wum-Lan site of I-Lan prefecture, in June, 2001. The most relevant reason for this situation was the location of this site was under the Chyi-Wuu-Lan river and it was rarely happened among excavated sites of Taiwan in the past. In order to understand the practical use of wood from this site, only wood species used for post members of part house buildings were identified anatomically io this study due to there were many lands and huge quantities of wood remains. From 14 post samples, 6 species were identified, including 4 samples of conifers and 10 of broad leaved trees. Among the softwood species, two samples were Taiwan incense cedar (Calocedrus formosana), the rest of two samples was Taiwan yellow cypress (Chamaecyparis obtuse var. formosana) and Taiwan red cypress (C. formosensis), respectively. Among the hardwood species, eight samples were identified as Bishop wood (Bischofia javanica), the rest of two samples was Subcostata crape myrtle (Lagerstroemia subcostata) and sharp spine evergreen chiokapin (Castanopsis stipitata), respectively. On the whole, the wood species appropriate for the post members were selected in term of mechanical and biodeterioration resistance properties of these wood species. Because of excellent durability against water, Bishop wood was dominant with 57% of these species that were used for most post members of house buildings.