GLACIAL IMPACTS ON LACUSTRINE ECOLOGY, GEOPHYSICAL SYSTEMS AND POLLUTANT CHEMISTRY IN THE HIGH ARCTIC

该项目将利用多代用指标方法，以高时间分辨率分析湖芯沉积物，并重建影响研究地点的冰川历史和沉积过程变化的历史记录、沉积物化学剖面（包括某些营养物、持久性有机污染物、汞和铅的存在）和硅藻组合的变化（北极环境中的主要初级生产者; Ryves等人，2002年）。这将提供北极湖泊沉积、生态系统变异和污染物积累的不同空间和历史概况，将目前的过程纳入气候背景，并提供关键数据，以建立未来气候变化对这些淡水生态系统影响的模型。

This project will utilise a multi-proxy approach to analyse lake core sediments at high temporal resolution and reconstruct a historical record of the changing glacial history and sedimentological processes affecting the study sites, sediment chemistry profiles (including the presence of a selection of nutrients, POPs, mercury and lead) and shifts in diatom assemblages (key primary producers in Arctic environments; Ryves et al., 2002). This will provide a diverse spatial and historical overview of Arctic lake sedimentation, ecosystem variability and pollutant accumulation, putting the present processes into climatic context, and providing key data to develop models on the impacts of future climate change on these freshwater ecosystems.