Applied Paleoecology: Vegetation History, Soil Carbon Accumulation and Climatic Interactions of the Peatlands on the North Slope, Alaska

摘要ATM-9416858 Wendy R. 俄亥俄州州立大学应用古生态学：阿拉斯加北坡泥炭地的植被历史、土壤碳积累和气候相互作用 该奖项支持ARCSS/PALE计划下的研究。 将分析选定的北坡泥炭地的各种古生态指标，以重建植被历史以及苔原植被与碳积累率的关系。 岩芯和地表样品将取自目前正在ARCSS计划倡议范围内进行调查的地点。 地表样本将用于校准植被类型、土壤温度、解冻深度和湿度的生物指标。 花粉、孢子、真菌、藻类和大型化石将作为过去生态系统的替代数据进行分析。植被重建将与核心中不断变化的碳积累速率进行比较，为生态学家和土壤科学家提供一个在这种复杂环境中长期监测景观动态的装置。 北极苔原作为世界碳的主要储存地发挥着重要作用。 北方泥炭可能仍在积累土壤碳，也可能正在流失，这个问题对全球变化情景有重要影响。

Abstract ATM-9416858 Eisner, Wendy R. Ohio State University Title: Applied Paleoecology: Vegetation History, soil carbon accumulation and climatic interactions of the Peatlands on the North Slope, Alaska This award supports research under the ARCSS/PALE Program . A wide range of paleoecological indicators from selected North Slope peatlands will be analyzed in order to reconstruct vegetation history and the relationship of tundra vegetation to carbon accumulation rates. Cores and surface samples will be taken from sites currently under investigation within the ARCSS Program initiatives. Surface samples will be used to calibrate biotic indicators with vegetation type, soil temperature, thaw depth, and moisture. Pollen, spores, fungi, algae, and macrofossils will be analyzed as proxy data for the past ecosystem. Vegetation reconstruction will be compared to changing carbon accumulation rates in the cores, offering ecologists and soil scientists a very long-term monitoring device of landscape dynamics in this complex environment. The arctic tundra plays a significant role as a major repository of the world's carbon. Northern peat may still be accumulating soil carbon or may actually be losing it. This question has important consequences for global change scenarios.