古代汀州城的发展变迁

古代汀州城是闽西的政治、军事、经济、文化中心,在一千多年的历史长河中,它从唐代草创到明清时繁荣,逐步发展为具有传统特色的历史文化名城。促使汀州城发展变化的原因主要是:生产力的提高和社会经济的繁荣;客家人的入迁,中原文化与闽越族文化的融合;汀江航运交通的发展。     

Early Ordovician conodonts from Zhejiang Province,southeast China and their biostratigraphic and palaeobiogeographic implications

Forty-two conodont species are documented from the Liuxia, Shijiatou and Jingshan formations in Zhejiang Province of southeast China, located palaeogeographically on the Jiangnan Slope offshore to the Yangtze Platform. From these faunas, eight successive conodont biozones of Tremadocian to middle Floian (Early Ordovician) age are recognized, including the Cordylodus lindstromi Biozone, Cordylodus angulatus Biozone, Chosonodina herfurthi Biozone, Paltodus deltifer Biozone, Paroistodus proteus Biozone, Triangulodus bifidus Biozone, Serratognathus diversus Biozone and Prioniodus elegans Biozone. Several zonal index species of the Baltoscandian succession—Paltodus deltifer, Paroistodus proteus and Prioniodus elegans—are described and illustrated in detail for the first time from South China. Co-occurrence of P. proteus and Serratognathus bilobatus in several samples below the appearance of P. elegans also confirms correlation of the S. diversus Biozone (basal Floian) with the upper P. proteus Zone of the Baltoscandian succession. These Zhejiang faunas are dominated by pandemic forms, and are similar to those of the Open-Sea Realm elsewhere, inhabiting deep, offshore environments.     

先秦两汉时期铁器的生产应用与社会发展进程问题——读《先秦两汉铁器的考古学研究》

白云翔先生所著<先秦两汉铁器的考古学研究>一书出版已有些时日.我因早年研究过中国古代冶铁术,出版之初即通读了该书,并打算撰写书评,但考虑到自己近年的研究兴趣已更多地转移到了商代考古领域,未敢轻易置喙.最近再次拜读云翔先生的大作,深信该书提出的诸多议题,应引起学术界高度重视,故不揣浅陋,对有关问题略加讨论,不当之处,敬请作者和学界同仁指正.     

Blooming Kelsang FLOWERS

正Eagles soar overhead in April.Snowcovered Mt.Droda stands firm,and the Yarlung Tsangpo River is bordered by lovely,green farms.Willows sprout with tender shoots along the river bank.The entire plateau is peaceful.Garze in Tibetan refers to the beauty     

旅游经济影响评估——线性规划在旅游决策中的运用

本文向旅游规划者提供线性规划模型,将其应用到国家级自然风景区--天柱山所在地潜山县,以此研究旅游发展对经济的影响,并建立一个基准水平作为比较的基础.     

Early history of Chinese domestic sheep indicated by ancient DNA analysis of Bronze Age individuals

China has a long history of sheep husbandry, and has several indigenous sheep breeds. However, the exact geographic origin of Chinese domestic sheep remains unclear. To provide valuable genetic information for origin of Chinese domestic sheep, we performed an ancient DNA study on 22 sheep excavated from four Bronze Age archaeological sites in Northern China. Two lineages (A and B) were observed in ancient Chinese sheep, of which lineage A was predominant reaching a frequency of 95.5%. Furthermore, phylogenetic network showed that the most frequent haplotype in ancient sheep was the founder of lineage A. These results suggest that Lineage A may hold the key to understanding the origin of Chinese domestic sheep. Sequence sharing and principal component analysis showed that the ancient Chinese sheep had a close affinity to modern Chinese sheep. However, there was no significant breed structure among three modern Chinese sheep groups, making it difficult to determine their relationship to ancient Chinese sheep. Lastly, our results imply that ancient DNA analysis could provide a new way to investigate prehistoric East-West contact.