太白山西佛爷池沉积物有机碳、氮同位素记录的过去1800多年的气候-环境变化

doi:10.13209/j.0479-8023.2017.075

北京大学学报（自然科学版） ›› 2018, Vol. 54 ›› Issue (1): 94-104.DOI: 10.13209/j.0479-8023.2017.075

太白山西佛爷池沉积物有机碳、氮同位素记录的过去1800多年的气候-环境变化

高艺珅, 王红亚^†, 程颖, 刘鸿雁, 朱晨怡

地表过程与模拟教育部重点实验室, 北京大学城市与环境学院, 北京100871

收稿日期:2016-12-01 修回日期:2017-03-29 出版日期:2018-01-20 发布日期:2018-01-20
通讯作者: 王红亚, E-mail: why(at)urban.pku.edu.cn
基金资助:
国家自然科学基金(41171160)资助

Climatic and Environmental Changes in More Than the Past 1800 Years as Recorded by Isotopic Carbon and Nitrogen in Organic Matter of Sediments from Western Foye Chi (Buddha Pond) on Taibai Mountain

GAO Yishen, WANG Hongya^†, CHENG Ying, LIU Hongyan, ZHU Chenyi

Key Laboratory for Earth Surface Processes (MOE), School of Urban and Environmental Sciences, Peking University, Beijing 100871

Received:2016-12-01 Revised:2017-03-29 Online:2018-01-20 Published:2018-01-20
Contact: WANG Hongya, E-mail: why(at)urban.pku.edu.cn

摘要/Abstract

摘要：

在秦岭主峰太白山南坡的冰蚀湖西佛爷池中取得一个深50cm 的沉积物柱芯(XFYC12-2)。对XFYC12-2的样品做加速器质谱(AMS) ¹⁴C 测年和有机碳、氮稳定同位素分析, 并据此重建这一高山湖泊周边过去1800多年的气候−环境变化。结果表明: 1811~1380 (或1440) aBP 偏冷干; 1380 (或1440)~840 aBP 温暖湿润, 这一阶段可能与中世纪暖期相当; 840~460 (或 520) aBP 转为寒冷干旱, 这一阶段或许相当于小冰期; 460(或 520)~100 aBP 又趋暖湿。上述气候?环境变化过程与太白山南坡高海拔地段另外两个湖附近的变化过程、中国东部地区的总体变化趋势及4 个代表性地点的变化过程相似。

关键词: 太白山, 西佛爷池, 碳、氮稳定同位素, 气候?环境变化

Abstract:

A 50-cm core (hereafter referred to as “XFYC12-2”) was retrieved from western Foye Chi (Buddha Pond), a glacier-scour lake on southern slope of Taibai Mountain that is the main massif and peak of Qinling Mountain Range. Accelerator mass spectrometry (AMS) ¹⁴C dating and analyses of isotopic carbon and nitrogen of organic matter were performed on samples from XFYC12-2. Climatic and environmental changes occurring around this alpine during over the past ~1800 years were therefore reconstructed. Climatic and environmental conditions were still fairly cool and arid during 1811−1380 (or 1440) aBP. In 1380 (or 1440)−840 aBP, the climate and environment were warm and humid. This episode is probably corresponding to Medieval Warm Period (MWP). Climatic and environmental conditions deteriorated subsequently and were thus cold and dry over the period of 840?460 (or 520) aBP. This phase may correspond to Little Ice Age (LIA). Climatic and environmental conditions have turned to be warm and wet again during 460 (or 520)−100 aBP. The aforementioned process of climatic and environmental changes appears quite similar to what was reconstructed around another two lakes at the high altitudes of Taibai Mountain, what was generalized for eastern China and what was identified at another four study areas in eastern China.

Key words: Taibai Mountain, western Foye Chi (Buddha Pond), carbon and nitrogen isotopes of organic matter, climatic and environmental changes

中图分类号:

P531

高艺珅, 王红亚, 程颖, 刘鸿雁, 朱晨怡. 太白山西佛爷池沉积物有机碳、氮同位素记录的过去1800多年的气候-环境变化[J]. 北京大学学报（自然科学版）, 2018, 54(1): 94-104.

GAO Yishen, WANG Hongya, CHENG Ying, LIU Hongyan, ZHU Chenyi. Climatic and Environmental Changes in More Than the Past 1800 Years as Recorded by Isotopic Carbon and Nitrogen in Organic Matter of Sediments from Western Foye Chi (Buddha Pond) on Taibai Mountain[J]. Acta Scientiarum Naturalium Universitatis Pekinensis, 2018, 54(1): 94-104.

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链接本文: https://xbna.pku.edu.cn/CN/10.13209/j.0479-8023.2017.075

https://xbna.pku.edu.cn/CN/Y2018/V54/I1/94

[1]	杨秀云, 高艺珅, 程颖, 王红亚, 刘鸿雁. 近2000年来太白山高山带不同海拔植被对气候变化的响应[J]. 北京大学学报自然科学版, 2020, 56(5): 844-854.
[2]	张彩娜, 王红亚, 刘鸿雁, 程颖, 宋雅琼, 罗耀, 邓雷. 太白山高山带距今5520年以来气候‒环境变化 —— 佛爷池沉积物的多指标记录及其结果的解译[J]. 北京大学学报（自然科学版）, 2015, 51(6): 1091-1101.

太白山西佛爷池沉积物有机碳、氮同位素记录的过去1800多年的气候-环境变化

Climatic and Environmental Changes in More Than the Past 1800 Years as Recorded by Isotopic Carbon and Nitrogen in Organic Matter of Sediments from Western Foye Chi (Buddha Pond) on Taibai Mountain

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