沉积物粒度记录的异龙湖近百年环境演变过程
Environmental Evolution of Lake Yilong Recorded by Sediment Grain Size in Recent 100 Years
DOI: 10.12677/aep.2024.142030, PDF,   
作者: 陈金龙：云南师范大学地理学部，云南 昆明
关键词: 异龙湖；沉积物；粒度；环境演变；Lake Yilong； Sediment； Grain Size； Environmental Evolution
摘要: 2021年1至3月，在云南师范大学地理学部实验室使用马尔文激光粒度分析仪对异龙湖东西湖区两根钻孔沉积物样本进行粒度分析，依据有关研究建立沉积物年代序列，结合人类活动和历史资料对两根钻孔沉积物粒度组分进行分别研究，揭示了沉积物粒度记录的近百年来异龙湖环境演化过程和标志事件。研究结果表明1918年、1952年、1978年、2005年、2011年异龙湖区域的环境事件在钻孔沉积物粒度中均有粒度记录，沉积事件的识别特征明显。基于同样的机理，如其他湖泊有类似的沉积特征，可对其他湖区沉积物粒度的解释提供一定参考。
Abstract: From January to March in 2021, the grain size of sediment samples from two boreholes in the East-West Lake area of Yilong Lake was analyzed by Malvern laser particle size analyzer in the laboratory of the Department of geography of Yunnan Normal University. Based on the relevant research, the sediment age sequence was established. Combined with human activities and historical data, the grain size components of sediments from two boreholes were studied respectively. It reveals the environmental evolution process and marker events of Yilong Lake recorded by sediment grain size in recent 100 years. The results show that the environmental events in Yilong Lake area in 1918, 1952, 1978, 2005 and 2011 have grain size records in the borehole sediments, and the identification characteristics of sedimentary events are obvious. Based on the same mechanism, if other lakes have similar sedimentary characteristics, it can provide some reference for the interpretation of sediment grain size in other lakes.
文章引用：陈金龙. 沉积物粒度记录的异龙湖近百年环境演变过程[J]. 环境保护前沿, 2024, 14(2): 222-229. https://doi.org/10.12677/aep.2024.142030

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