Luminescence Dating of Relics in Ancient Cities Provides Absolute Dates for Understanding Human-Land Relationships in Qinghai Lake Basin, Northeastern Tibetan Plateau
Luminescence Dating of Relics in Ancient Cities Provides Absolute Dates for Understanding Human-Land Relationships in Qinghai Lake Basin, Northeastern Tibetan Plateau
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DOI：
10.3389/feart.2021.701037
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发表时间：
2021-09
期刊：
影响因子：
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通讯作者：
Manping Sun;Yongjuan Sun;Hai-cheng Wei;G. Hou;Ji Xianba;Liqian Xie;Y. Zeng;C. E
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文献类型：
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作者：
Manping Sun;Yongjuan Sun;Hai-cheng Wei;G. Hou;Ji Xianba;Liqian Xie;Y. Zeng;C. E
古城遗址的研究为理解人地关系提供了宝贵的证据。青海湖盆地位于青藏高原东北部，是中国古代东西方经济文化交流的重要场所，考古调查发现了许多古代城市的遗迹。一些古代城市虽然有较好的史料记载，但由于缺乏系统的年代测定，其绝对年龄仍不清楚。本研究利用光释光测年技术，结合文献资料和古气候资料，对青海湖流域西海郡、北向阳和伏羲三座古城的陶瓷和砖瓦遗存进行了研究。兴化金堂和北新金堂出土的瓷片年代为0-220年，即汉代，而佛家堂出土的瓷片年代为120-520年，大致相当于魏晋南北北方时期。光释光法测年结果与文献记载基本一致，表明光释光法可以可靠地测定青藏高原东北部古城埋藏瓦片的年代。与古气候记录的对比表明，该时期气候温暖湿润。2 ka是西汉晚期青海湖地区移民的重要驱动力，导致了青海湖地区城市的建设。魏晋北方朝时期（公元220-589年），东西方交流繁荣，中原和河西走廊战事不断，人类活动旺盛。伏羲在魏晋南北北方朝后期基本上被废弃了，尽管它仍然断断续续地使用，直到明朝。花粉记录证实了魏晋北方朝时期青海湖地区人类广泛从事农业生产。
The study of ancient city sites provides valuable evidence for understanding human-land relationships. Qinghai Lake Basin, on the northeastern Tibetan Plateau, was a key location for economic and cultural exchanges between East and West in ancient China and archaeological surveys have identified the remains of many ancient cities. Although there are relatively good historical records for some ancient cities, their absolute ages are still unclear due to a lack of systematic chronological dating. In this study, OSL dating of ceramic and tile remains from three ancient cities in Qinghai Lake Basin, Xihaijun (XHJGC), Beixiangyang (BXYGC), and Fuxi (FSC), was combined with documentary and paleoclimate evidence to investigate historical human-land relationships. Relics from XHJGC and BXYGC were dated to 0–220 AD, in the Han Dynasty, while tiles from FSC were dated to 120–520 AD, largely corresponding to the Wei Jin Southern and Northern Dynasties. Luminescence ages were generally consistent with dates recorded in historical documents, indicating that the OSL method can be reliably used to date buried tiles in ancient cities on the northeastern Tibetan Plateau. Comparing the dates with paleoclimatic records suggests that the warm and humid climate at c. 2 ka was an important driver of immigration to the region that led to the construction of cities in the Qinghai Lake area during the late Western Han Dynasty. During the Wei Jin Southern and Northern Dynasties (220–589 AD), communication between East and the West flourished, and human activities in the area were strong with the continuation of the war in Central China and Hexi Corridor. Fuxi was largely abandoned in the later Wei Jin Southern and Northern Dynasties, although it was still used intermittently until the Ming Dynasty. Pollen records confirm that humans were extensively engaged in agricultural production in the Qinghai Lake area during the Wei Jin Southern and Northern Dynasties.