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月亮湖末次盛冰期到早全新世湖泊沉积物气孔器分析的结果,揭示了大兴安岭地区以落叶松为主的针叶树演化历史:15.0 cal ka BP之前研究地点周围没有针叶树生长;15.0~12.8 cal ka BP开始到达研究区,在植被中所占比例逐渐升高;12.8~11.8 cal ka BP所占比例达到峰值,11.8~10.8 cal ka BP针叶树成分退缩.大兴安岭地区晚冰期的森林群落演化与东亚季风区不同纬度区域的植被演替具有可比性.气孔器和花粉记录揭示的植被演化阶段在时间上与欧洲地区Meiendorf间冰段、Oldest Dryas冷事件、B?lling-Aller?d暖期、Younger Dryas冷期以及早全新世温暖湿润期较为一致,温度变化是控制植被变化的主要因素.研究区的植被演替响应了全球冰量控制的北半球温度变化,揭示了东亚中纬度地区与北大西洋地区晚冰期快速气候变化的同步性.
The results of stomatal analysis of lacustrine sediments from the last glacial period to the Early Holocene in the Moon Lake reveal the evolution history of larch-dominated conifers in the Greater Xing’an Mountains: 15.0 cal ka BP. There was no coniferous growth around the study sites; 15.0 ~ 12.8 cal ka BP The proportions of 12.8 ~ 11.8 cal ka BP peaked and the coniferous tree component of 11.8 ~ 10.8 cal ka BP shrank before reaching the study area, and the evolution of forest community in late glacial period in Daxing’an Mountains was different from that in East Asian monsoon area Vegetation succession in latitudinal area is comparable. Stages of vegetation evolution revealed by stomatal apparatus and pollen records are in time close to the Meiendorf interplanetary ice in Europe, the cold events of Oldest Dryas, B? Lling-Aller? D warming, Younger Dryas chilling And the warm and wet period of Early Holocene are more consistent.The temperature change is the main factor controlling the vegetation change.The vegetation succession in the study area responds to the temperature change in the Northern Hemisphere controlled by the global ice volume and reveals the rapid evolution of late glacial period in the middle latitudes of East Asia and North Atlantic The synchronization of climate change.