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在2010年度甘肃张掖市甘州区黑水国西城驿遗址的发掘中,采用筛选法,在灰坑、房址、地层、沟和墓中罐子中共采集了38份木炭样品。对其中大于4mm的656块木炭进行了鉴定,656块木炭分别属于13种木本植物种属,有柽柳(Tamarix chinensis)、柽柳属(Tamarix)、沙棘属(Hippophae)、枸杞属(Lycium)、杨属(Populus)、柳属(Salix)、榆属(Ulmus)、云杉属(Picea)、圆柏属(Sabina)、沙拐枣属(Calligonum)、蒺藜科Zygophyllaceae和2种未鉴定的阔叶树及1枚杏核(apricot pit)。研究表明:柽柳属木材在黑水国西城驿遗址古代人类生活中占有重要地位,古人用柽柳作建筑材料。古代居民有可能采集枸杞属、沙棘属和杏属树木的果实食用,可能用沙拐枣属和蒺藜科树木的枝叶做饲料。研究还表明,黑水国西城驿遗址三期古环境比一期和二期相对干旱。
In the excavation of the West Chengyi Station of Heishui State in Ganzhou District, Zhangye City, Gansu Province, 38 samples of charcoal were collected from the jars in the ash pit, house site, stratum, ditch and tomb by the screening method. Among them, 656 pieces of charcoal more than 4mm were identified. Among them, 656 charcoal belonged to 13 species of woody plants, including Tamarix chinensis, Tamarix, Hippophae, Lycium, Populus, Salix, Ulmus, Picea, Sabina, Calligonum, Zygophyllaceae, and two unidentified broad-leaved trees And 1 apricot pit. Research shows that tamarisk wood occupies an important position in the ancient human life in the site of Xichengyi in Heishui, and the ancients used tamarisk as building materials. Ancient inhabitants may collect wolfberry genus, sea buckthorn and apricot trees fruit consumption, may be the sand Guazao and Chenopodiaceae branches and leaves do feed. The study also shows that the ancient environment of Phase III of Heishui Guo Xichengyi Site is more arid than Phase I and Phase II.