全新世气候变化和人类活动影响下内流河区河流系统的演变

Mingjun Gao, Yu Li, Zhansen Zhang, Junjie Duan, Yaxin Xue, Simin Peng, Hao Shang, Shiyu Liu
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引用次数: 0

摘要

内流河流域及其终端湖泊对气候变化和人类活动高度敏感。根据化学和花粉指标、湖泊水位以及河流的侵蚀/堆积速率,我们探讨了全新世河西走廊河流系统演变的阶段性。结果表明,在全新世早期-中期,气候变化主导了河流系统的演变。进入历史时期,人类开始对径流、水资源和湖泊演变产生影响,自公元前 1000 年以来,区域代用指标记录的人为扰动增加,人类主导了河流的迁徙。 此外,我们还讨论了全球内流变区河流的广泛侵蚀以及在此背景下人类活动的影响,并发现人类对河流演变的影响时间在不同地区并不相同。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
The evolution of river systems under the influence of climate change and human activities in the endorheic zones during the Holocene
Endorheic river basins and their terminal lakes are highly sensitive to climate change and human activities. Based on chemical and pollen indicators, lake level, and erosion/accumulation rates of rivers, we explore the phasing of the evolution of the river system in the Hexi Corridor during the Holocene. The results suggest that climate change dominated the evolution of the river system during the early-Mid-Holocene. Entering the historical period, humans began to have an impact on runoff, water resources, and lake evolution, and since 1000 BP, anthropogenic perturbations recorded by regional proxies increased and humans dominated the migrations of river . In addition, we discuss the widespread erosion of rivers in the global endorheic zone and the impact of human activities in this context and found the timing of human influence on river evolution is not the same in different regions.
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