Impacts of climatic change and environmental stress on aquatic ecosystems

为了探索北部淡水生态系统及其流域对气候变化的潜在反应，并将仪器温度记录放在长期的角度，我们将使用多代理古矿物学方法从加拿大北极东部的湖泊沉积物档案中生成详细的古气候和古环境记录。将对这些记录进行综合，并对产生的时间序列进行分析，以便能够与格陵兰岛的冰芯数据以及周围海洋环境的古海洋学数据进行区域比较。我们的中心目标是建立一个十年至千年尺度的湖泊参数数量变化记录网络，这将使我们能够更好地了解加拿大东北部自然环境变化的范围，并使我们能够探索与冰川后生态系统演替有关的北部地貌的基本问题。

To explore the potential responses of northern freshwater ecosystems and their watersheds to climate change and to place instrumental temperature records into a long-term perspective, we will use a multi-proxy paleolimnological approach to generate detailed paleoclimatic and paleoenvironmental records from lake sediment archives in the eastern Canadian Arctic. These records will be synthesized and the resulting time series analyzed to allow regional comparisons with ice core data from Greenland as well as with paleoceanographic data from surrounding marine environments. Our central objective is to generate a network of decadal-millennial scale records of quantitative variations in limnological parameters that will provide a better understanding of the range of natural environmental variability in northeastern Canada, and allow us to explore fundamental questions concerning postglacial ecosystem succession in northern landscapes.