Neolithic rice paddy from the Zhaojiazhuang site, Shandong, China

来源 :Chinese Science Bulletin | 被引量 : 0次 | 上传用户:Victsman
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
To identify and study the Neolithic rice paddy in Shandong, eastern China, is not only an important issue in the development of Chinese rice agriculture, but also a key part of the study on rice spread in East Asia. Due to the limitation of archaeological materials and the research methods, there have been no discoveries about the Neolithic rice paddy in Shandong Province for a long time. Based on the identification of possible rice paddy by archaeological excavation, phytolith analysis of soil samples from this “paddy” has been systematically carried out and the results have shown a 4600—4300 years old rice paddy preserved at the Zhaojiazhuang site. This is the first examination and study of the rice paddy in North China by systematic phytolith analysis, which is very important for the Neolithic archaeological research and the study of the eastward spread of rice agricultural techniques in East Asia. To identify and study the Neolithic rice paddy in Shandong, eastern China, is not only an important issue in the development of Chinese rice agriculture, but also a key part of the study on rice spread in East Asia. Due to the limitation of archaeological materials and the research methods, there have been no discoveries about the Neolithic rice paddy by archaeological excavation, phytolith analysis of soil samples from this “paddy” has been systematically carried out and the results have shown a 4600-4300 years old rice paddy preserved at the Zhaojiazhuang site. This is the first examination and study of the rice paddy in North China by systematic phytolith analysis, which is very important for the Neolithic archaeological research and the study of the eastward spread of rice agricultural techniques in East Asia.
其他文献
针对近年来臭氧浓度不降反升的情况,生态环境部今年6月底正式印发《2020年挥发性有机物治理攻坚方案》(下称《攻坚方案》),此后各省纷纷出台相应政策,全国正掀起一场VOCs治理
期刊
传统石油化工公司要做世界领先洁净能源化工公司?是的,7月20日,中国石化年中工作会议提出公司新愿景——打造世界领先洁净能源化工公司.rn中国石化董事长、党组书记张玉卓解
期刊
与上世纪30年代大萧条不同,这次全球性停摆完全来自经济体系外部冲击,即外生冲击,其严重程度在于即便疫情结束,即便各国步调一致同时“起摆”,全球经济也不可能回复到停摆之
期刊
当前,我国石油石化企业仍处于发展的重要战略机遇期,但机遇期的内涵和条件已经发生了深刻变化,叠加新冠肺炎疫情和低油价的冲击影响,企业面临的风险挑战前所未有,必须高度警
期刊
今年以来石油石化行业经历了一个特殊而难忘的历史阶段,不确定性是目前面临的最大挑战.一是新冠疫情仍在全球蔓延,导致的市场需求骤然下降、全球供应链中断、国际贸易停滞等
期刊
全球油市阴云笼罩之际,国内油气市场的“天”放晴了.rn7月21日,在习近平总书记作出关于大力提升油气勘探开发力度、保障国家能源安全重要批示两周年之际,国家能源局在中国石
期刊
从古至今,不管是在哲学领域,还是在其它的学科领域,人们总是注重于对不同种类问题的分析和解决,但是对问题本身的研究却很少,导致不少人走了弯路,浪费了大量时间和精力,尤其
在海洋石油界,一般将小于400米水深称为浅水作业区,将400-1500米水深称为深水区,超过1500米水深的为超深水.超深水域的油气勘探开发和工程作业,由于其环境的特殊性、技术的尖
期刊
挪威Drillwell研究中心专家近期提出,改进目前常用钻井返程泥浆流量计的工艺原理.这种新型流量计性能更精确与实用.rn在钻进过程中,如果从井眼流出的液体不断增加,则预示井眼
期刊
美国石油公司近期柴油驱动压裂车的数量有所下降,而“电力驱动的压裂车队”的数量迅速上升.至2020年初,全美有290个电力驱动压裂车队,压裂车队从原来的美国页岩市场占有率3%,
期刊