为了探讨全球变暖是否会带来毁灭性的生态环境后果，本项目选择位于东亚夏季风西北缘的马鞍山和卧牛泡子火山口湖的湖泊沉积物岩芯，进行年代学、沉积学和生物学（孢粉、气孔器、植物残体和炭屑）研究，重建末次冰消期大兴安岭地区植被演化历史，通过孢粉-气候转换函数定量或半定量估算温度和降水变化，确定大兴安岭地区末次冰消期的开始时间、增温幅度和水热组合变化，揭示植被和植物群落物种多样性对不同幅度和速率升温的响应模式，探讨末次冰消期轨道尺度上的驱动机制，以及千年/百年尺度上的气候快速变化事件与东亚季风系统演化之间的关系。末次冰消期大兴安岭地区植被对气候变化的响应研究将为科学评估全球变暖造成的生态环境效应提供依据，为政府制定气候变化应对对策提供参考。

In order to investigate whether global warming will bring the destruction of the ecological environment, this programme was designed to obtain the consequences of lacustrine sediment cores from Ma'anshan and Woniu Nur crater lakes located in the northwestern margin of East Asia Summer Monsoon. The chronology, sedimentology and biology (pollen, stomata, plant residues and charcoal) methods will used to reconstruct the vegetation evolution history in the Great Khingan Range area during the last deglaciation, to estimate temperature and precipitation quantitatively or semi-quantitatively by pollen-climate transfer function, to determine onset, the amplitude of temperature increase and combination of water and heat of the last deglaciation in the area of Great Khingan Range, to reveal the response patterns of vegetation and plant species diversity to warming with different magnitude and rate, to explore the driving mechanism of the last deglaciation on the orbital scale, and the relationship between the millennial/centennial rapid climate change events and the evolution of East Asian monsoon system. The results of the research on the vegetation response to climate change of the Great Khingan Range area during the last deglaciation will provide the basis for scientific evaluation of ecological environment caused by global warming effect, and the reference for the government to make corresponding counterplan.