Science. 1994 Aug 19;265(5175):1079-81. doi: 10.1126/science.265.5175.1079.
Tree rings from three dendrochronologically dated bristlecone pines were analyzed for stable hydrogen isotopic composition. These trees give a continuous time series from 8000 years ago to the present that indicates the presence of a postglacial climate optimum 6800 years ago and a continuous cooling since then. The qualitative agreement between this record and records from other sources, such as ice cores, pollen, and treeline fluctuations, indicates that these climate changes were global. This record can serve as a reference for other climate indicators throughout the past 8000 years.
对 3 棵经过树轮年代学测定的刺柏进行了稳定氢同位素组成分析。这些树木提供了一个从 8000 年前到现在的连续时间序列，表明 6800 年前存在一个后冰川期气候最佳期，并从那时起持续降温。该记录与来自其他来源的记录（如冰芯、花粉和树线波动）之间的定性一致性表明，这些气候变化是全球性的。该记录可以作为过去 8000 年其他气候指标的参考。
