目前全球气候环境变化研究是地球科学界研究的热点,其研究的目的之一就是预测未来气候和环境变化。要预测其未来,必须认识其过去,因此,认识地球过去气候环境变化规律和认识人类活动引起的气候环境变化非常重要。怎样认识地球过去气候环境变化呢?可以通过认识地球表面气候环境变迁历史的信息库,这些信息库包括树轮、冰芯、深海钻孔、历史典籍以及湖泊沉积等。湖泊沉积物保存着与过去全球气候环境变化有关的不同时间和空间尺度的丰富信息,加上湖 At present, the research on global climate change is one of the hot topics in the field of geosciences. One of the purposes of this study is to predict the future climate and environment changes. To predict its future, we must recognize its past. Therefore, it is very important to understand the changing laws of the past climate environment and to understand the climate change caused by human activities. How to recognize the Earth’s past climate and climate change? Through the understanding of the Earth’s surface climate change history of the information base, the information base, including tree rings, ice cores, deep-sea drilling, history books, and lake sediments. Lake sediments preserve rich information on different time and space scales related to the changes in the past global climate and the lake