Possible relatedness between the outburst of the Diexi ancient dammed lake and ancient Chengdu’s cultural change
Possible relatedness between the outburst of the Diexi ancient dammed lake and ancient Chengdu’s cultural change
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DOI：
10.1007/s11629-020-6103-6
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发表时间：
2020-10
影响因子：
2.5
通讯作者：
Xiao-qun Wang;Xin Huang;Man Shen;Zhou Zhou-Zhou;Jie Wei
中科院分区：
文献类型：
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作者：
Xiao-qun Wang;Xin Huang;Man Shen;Zhou Zhou-Zhou;Jie Wei
叠溪古堰塞湖位于岷江上游。六阶湖相沉积发生在基地。这些阶地是叠溪古堰塞湖分级溃决的产物。古堰塞湖的溃决，必然会对岷江下游的成都平原产生影响。采用现场采样和室内分析相结合的方法，对成都平原叠溪古堰塞湖和金沙遗址的沉积物进行了分析，并对各沉积层的环境指标进行了测试。通过对两地沉积物中环境指标的对比分析，得出以下结论：两地的古气候、古环境特征总体上表现出一致的变化。最重要的发现是，在两个地点的主要花粉类群的类型和内容是相似的。松属植物的含量强有力地证明了金沙遗址的土层来源于岷江上游。考虑到金沙遗址古文化消亡的时间与叠溪古堰塞湖溃决的时间相近，这种相似性表明金沙遗址古文化变迁可能与叠溪古堰塞湖溃决有关。
The Diexi ancient dammed lake is in the upper reaches of the Minjiang River. Six terraces with lacustrine sediments occur at the base. These terraces are the products of the graded outburst of the Diexi ancient dammed lake. The outburst of the ancient dammed lake would certainly have had an impact on the Chengdu Plain in the lower reaches of the Minjiang River. In this paper, on-site sampling and laboratory analysis were used to analyze the sediments of the Diexi ancient dammed lake and the Jinsha site in Chengdu Plain, and the environmental indicators of each sediment layer were tested. Through a comparative analysis of the environmental indicators in the sediments at the two locations, the following results were obtained: the palaeoclimatic and palaeoenvironmental characteristics at the two locations generally show consistent changes. The most important finding is that the types and content of the major pollen taxa at the two locations are similar. ThePinuscontent strongly proves that the soil layers at the Jinsha site was sourced from the upper reaches of the Minjiang River. Considering that the demise of the ancient culture at the Jinsha site occurred close in time to the outburst of the ancient dammed lake, this similarity suggests that the cultural change at the Jinsha site may have been related to the outburst of the Diexi ancient dammed lake.