We measured stable isotopes (δ¹⁸O and δ¹³C) in Sphagnum cellulose that was extracted from a long peat core drilled in the ombrotrophic Mohos peat bog, Ciomadul Mountain, Romania. The 10-m-long peat profile spans the period from 11,800 cal yr BP to present. The δ¹⁸O and δ¹³C data indicate there were several cooling events and warm periods in the area of the Mohos peat bog during the Holocene. The 8.2-ka cold event, however, was not detected using δ¹⁸O and δ¹³C values. Response of the peat bog to changing environmental conditions was inferred using data on organic matter accumulation, independent of the stable isotope results. All cool periods during the Holocene, whether of short or long duration, were identified as times of reduced organic matter accumulation rate. Similarly, dry periods were also correlated with reduced accumulation rates of organic matter.

我们测量了泥炭藓纤维素中的稳定同位素（δ ¹⁸ O 和 δ ¹³ C），泥炭藓纤维素是从在罗马尼亚 Ciomadul 山的同养型莫霍斯泥炭沼泽中钻探的长泥炭岩芯中提取的。10 米长的泥炭剖面跨越了从 11,800 cal yr BP 到现在的时期。δ ¹⁸ O 和 δ ¹³ C 数据表明在全新世莫霍斯泥炭沼泽地区发生了几次降温事件和暖期。然而，使用 δ ¹⁸ O 和 δ ¹³未检测到 8.2-ka 冷事件C 值。泥炭沼泽对不断变化的环境条件的响应是使用有机物质积累的数据推断出来的，与稳定同位素结果无关。全新世期间的所有凉爽时期，无论持续时间短还是长，都被确定为有机物积累率降低的时期。同样，干旱期也与有机质积累率降低有关。