Hydrological variations of a lake-catchment and human interaction during the last 6 ka in Yunnan, China
Hydrological variations of a lake-catchment and human interaction during the last 6 ka in Yunnan, China
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近 6 ka 云南湖泊流域水文变化及人类相互作用
DOI:
10.1016/j.jhydrol.2020.124932
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发表时间:
2020-08
影响因子:
6.4
通讯作者:
Jiang Zhilong
中科院分区:
文献类型:
--
作者:
Yan Dada;Wuennemann Bernd;Jiang Zhilong
Hydrological variations in many lake systems are connected with water supply or loss in response to climate changes. In Yunnan Province of south-eastern China major lakes and their catchments such as Dian Lake basin in the vicinity of the Provincial capital Kunming were also preferred for early settlements. Here we reconstructed hydrological conditions of the lake and parts of its catchment in combination with early human occupation during the last 6 cal. ka BP and focused on the Dian culture (Bronze Age) and succeeding Han Dynasty. We mainly used sediment composition in the lake and on land to infer transportation processes related to climate controlled hydrological variations and combined them with past human occupation in response to groundwater fluctuations and resulting settlements and land use. Our results show that Dian Lake experienced several low lake level stages between 4.5 and 1.0 cal. ka BP (negative hydrological balance) due to deteriorated monsoon climate impact, but also indicate high-frequency flood-drought events. Lowered groundwater levels enabled human cultures to settle at low-terrain sites during the late Neolithic, Bronze Age (Dian culture), and early Chinese empires. Different from other regions in eastern Asia the local cultures adapted to climate deterioration and made use of extended arable land and intensified harvest of aquatic gastropods.
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影响因子:
6.4
作者:
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通讯作者:
Kai Xu;Dawen Yang;Hanbo Yang;Zhe Li;Yue Qin;Yan Shen
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