湖北郧县直立人遗址研究新进展

郧县人Ⅰ号头骨、郧县人Ⅱ号头骨分别于1989年5月和1990年6月出土于中国湖北省郧县直立人遗址。2000年以来中法两国学者对遗址进行了深入研究,在考古学、古人类学、沉积学、微观形态学、地球化学、磁性地层学、地球年代学和孢粉学研究方面取得了一些新成果。研究成果显示遗址的年代在距今984000~780000年之间,两具头骨化石的年代在距今936000年左右,是世界上更新世早期重要的直立人化石之一;郧县人遗址石制品面貌比较古老,是中国南方典型的砾石石器文化传统。     

湟中水案执照牌考析

本文通过对湟中水案现存文献资料的考释,并结合青海地方史志中所涉及的文献记载,对湟中水案的来龙去脉及其深远影响进行了详细的考释,这对于探讨清代湟中地区的水利章程以及地方风情具有一定的意义。     

中国共产党领导民族振兴的90年

中国共产党的90年,是领导中华民族重新崛起进而走向伟大振兴的90年。大体看来,前28年侧重于民族独立和民族解放,为民族振兴大业创造政治前提;中30年侧重于在中国实践马克思、恩格斯社会主义建设模式;近32年侧重于探索中国特色的社会主义发展模式并形成体现中西文化结合的中国特色社会主义的完善形态。     

陇西云阳板文化散论

本文就陇西非物质文化遗产云阳板的表演形式、娱神功能、文化内涵以及风俗人情进行了介绍,展现了陇西作为陇上文化古城所具有的悠久历史和深厚的文化积淀。     

侯仁之 经世致用的学术人生

"我作为一个青年学生对当时称作文化古城的北平,心向往之,终于在一个初冬的傍晚,乘火车到了前门车站。当我在暮色苍茫中随着拥挤的人群走出车站时,巍峨的正阳门和浑厚的城墙蓦然出现在我眼前。一瞬之间,我好像突然感到一种历史的真实。从这时起,一粒饱含生机的种子就埋在了我的心田中。在相继而来的岁月里,尽管风雨飘摇,甚至狂飙陡起,摧屋拔木,但是这粒微小的种子,却一直处于萌芽状态,把我引进历史的殿堂。"——侯仁之     

A Simplified Calculation Method for Liquefaction-Induced Settlement of Shallow Foundation

This work was aimed at developing a practical and simple settlement estimation of shallow foundation on liquefiable deposits. The study conducted a centrifuge test, a series of comprehensive numerical analysis, back analysis, equation calibration, and verification with data from not only centrifuge test but also the literature. It finally proposed a quick calculation method based on Meyerhof’s settlement equation (1965). A two-dimensional numerical analysis, named ALID, (Analysis for Liquefaction-induced Deformation), was employed for obtaining settlement of shallow foundations on liquefiable soils with different relative densities under various seismic conditions. Its performance was first verified through a centrifuge test conducted in this study. Then, the developed method based on Meyerhof’s settlement equation was employed, and a new parameter, N_LR, was proposed to present the strength of liquefied soils by replacing N value in the original equation. The N_LR was obtained through back analysis of the numerical results and modified accordingly after comparison with the data from the literature. This paper, finally, demonstrated the practical use of the proposed method involving N_LR by predicting 199 sets of liquefaction-induced settlement of shallow foundation reported in the past, including a latest most liquefaction-induced settlement of a house in 0206 earthquake on February 6, 2016, in Taiwan.     

大典本《新安志》的编修时间和佚文辑补

《永乐大典》收录的《新安志》是明代洪武初年朱同编修的《新安志》。此志久已亡佚,《永乐大典方志辑佚》收录该志的部分佚文。本文从现存徽州方志中摘录了几条朱同《新安志》的佚文,以为辑补。     

成都市青白江区双元村墓地朱砂的汞同位素分析

为尝试比较汞同位素分馏数据来跟踪朱砂矿源,对成都市青白江区双元村战国墓地11个墓中的朱砂样本进行汞同位素测定。汞同位素分馏值彼此相似,应来自同一矿源。δ²⁰²Hg值从-1.18‰到-0.84‰不等(均值-1.010‰,标准误差0.105‰,样本数11个),和已发表的其他矿源汞同位素分馏值均存在差异。通过数据比较,可知成都青白江区双元村墓地不同墓中的漆器朱砂颜料汞同位素质量分馏值分布集中,极有可能来自同一矿源。如对周边地区朱砂矿进行汞同位素分馏值测量,有可能找出该墓地的矿源。     

Evidence for a Neolithic Age fire-irrigation paddy cultivation system in the lower Yangtze River Delta,China

Establishing stable cropping systems was vital in antiquity, assuring certain yields and enabling ancient people to settle, thus possibly causing various modern food habits and culture to form around the world, especially in cereal-cultivation-dominated countries. China, one of the most famous ancient agricultural countries, has a long history of rice planting, and the fire-irrigation paddy cultivation system is prevalent in the lower Yangtze region, which is considered a rice domestication center. However, its origin and cultivation pattern remain unclear. We studied a famous agricultural vestige, the Chuodun site, involved in rice planting in the lower Yangtze River Delta in eastern China, during the Neolithic Age. Clear evidence from archaeology, paleobiology, pedology and biogeochemistry suggest both that the rice fire-irrigation cultivation system formed during the Neolithic Age and that ancient peoples lived there steadily. Under this extensive cultivation system, soil structures and properties changed significantly; in particular, it left more black carbon in the soil and increased the organic carbon soil stability, which can be used to reconstruct prehistoric environments. Meanwhile, the prevalent fire-irrigation paddy cultivation system used by farmers in this area, though for a different purpose than ancient people, may be inherited from the Neolithic Age.