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首页> 外文期刊>Journal of Paleolimnology >Revealing the last 13,500 years of environmental history from the multiproxy record of a mountain lake (Lago Enol, northern Iberian Peninsula)
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Revealing the last 13,500 years of environmental history from the multiproxy record of a mountain lake (Lago Enol, northern Iberian Peninsula)

机译：从一个多山湖泊（伊比利亚半岛北部的拉戈·埃诺尔）的多代理记录中揭示了过去13,500年的环境历史

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摘要

We present the Holocene sequence from Lago Enol (43°16′N, 4°59′W, 1,070 m a.s.l.), Cantabrian Mountains, northern Spain. A multiproxy analysis provided comprehensive information about regional humidity and temperature changes. The analysis included sedimentological descriptions, physical properties, organic carbon and carbonate content, mineralogy and geochemical composition together with biological proxies including diatom and ostracod assemblages. A detailed pollen study enabled reconstruction of variations in vegetation cover, which were interpreted in the context of climate changes and human impact. Four distinct stages were recognized for the last 13,500 years: (1) a cold and dry episode that includes the Younger Dryas event (13,500–11,600 cal. year BP); (2) a humid and warmer period characterizing the onset of the Holocene (11,600–8,700 cal. year BP); (3) a tendency toward a drier climate during the middle Holocene (8,700–4,650 cal. year BP); and (4) a return to humid conditions following landscape modification by human activity (pastoral activities, deforestation) in the late Holocene (4,650–2,200 cal. year BP). Superimposed on relatively stable landscape conditions (e.g. maintenance of well established forests), the typical environmental variability of the southern European region is observed at this site.
机译：我们介绍了来自西班牙北部坎塔布连山脉的Lago Enol（43°16'N，4°59'W，1,070 m a.s.l.）的全新世序列。多代理分析提供了有关区域湿度和温度变化的全面信息。分析包括沉积学描述，物理性质，有机碳和碳酸盐含量，矿物学和地球化学组成以及包括硅藻和胸骨类组合的生物代理。一项详细的花粉研究能够重建植被的变化，这些变化是在气候变化和人类影响的背景下进行解释的。在最近的13,500年中，人们认识到四个不同的阶段：（1）一场寒冷干燥的天气，包括Younger Dryas事件（BP 13,500–11,600 cal。year）； （2）始于全新世的湿润和温暖时期（11,600-8,700 cal BP年）； （3）中全新世（BP，8,700-4,650 cal。year）期间气候趋于干燥； （4）在全新世晚期（4,650–2,200 cal BP），人类活动（牧场活动，森林砍伐）对景观进行了改造之后，又恢复到潮湿状态。在相对稳定的景观条件下（例如维护完善的森林），在该地点观察到了南欧地区的典型环境变异性。

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