Synthesis of Soil Geochemical Characteristics and Organic Carbon Degradation from Arctic Polygon Tundra, Utqiagvik (Barrow), Alaska

This is a synthesis data product that reports (1) the results of soil geochemical characterization and (2) organic carbon degradation in low temperature soil incubations on cores collected on the NGEE Arctic Study Area near Utqiagvik (Barrow), Alaska. The study area consists of thaw lakes, drained thaw lake basins and interstitial tundra with a polygonal landscape of microtopographic features created by ice wedges. Integrated geochemical and organic carbon degradation data from 9 individual soil cores collected in April 2012 and April 2013 are included in the synthesis product. This dataset contains one pdf file and nine csv files. The Next-Generation Ecosystem Experiments: Arctic (NGEE Arctic), was a research effort to reduce uncertainty in Earth System Models by developing a predictive understanding of carbon-rich Arctic ecosystems and feedbacks to climate. NGEE Arctic was supported by the Department of Energy's Office of Biological and Environmental Research. The NGEE Arctic project had two field research sites: 1) located within the Arctic polygonal tundra coastal region on the Barrow Environmental Observatory (BEO) and the North Slope near Utqiagvik (Barrow), Alaska and 2) multiple areas on the discontinuous permafrost region of the Seward Peninsula north of Nome, Alaska. Through observations, experiments, and synthesis with existing datasets, NGEE Arctic provided an enhanced knowledge base for multi-scale modeling and contributed to improved process representation at global pan-Arctic scales within the Department of Energy's Earth system Model (the Energy Exascale Earth System Model, or E3SM), and specifically within the E3SM Land Model component (ELM).本数据集为综合数据产品，收录了在阿拉斯加州乌特恰维克（旧称巴罗）附近NGEE北极研究区采集的土壤岩芯的两项研究结果：(1) 土壤地球化学表征结果；(2) 低温土壤培养实验中的有机碳降解情况。该研究区涵盖解冻湖、疏干解冻湖盆与间隙苔原，其微地形为冰楔塑造的多边形地貌。本综合数据产品包含2012年4月与2013年4月采集的9根独立土壤岩芯的集成地球化学与有机碳降解数据。本数据集包含1个PDF文件与9个CSV文件。 下一代生态系统实验：北极（Next-Generation Ecosystem Experiments: Arctic，NGEE Arctic）旨在通过深化对富碳北极生态系统及其气候反馈的预测性认知，降低地球系统模型中的不确定性。该项目由美国能源部生物与环境研究办公室资助。 NGEE北极项目设有两个野外研究站点：其一为位于阿拉斯加州乌特恰维克（旧称巴罗）附近北坡的巴罗环境观测站（Barrow Environmental Observatory, BEO）内的北极多边形苔原沿海区域；其二为阿拉斯加州诺姆以北苏厄德半岛的不连续多年冻土区的多处区域。 该项目通过观测、实验以及与现有数据集的综合分析，为多尺度建模提供了更为完善的知识库，并推动了美国能源部地球系统模型（Energy Exascale Earth System Model，简称E3SM），尤其是其陆面模型组件（ELM）在全球泛北极尺度上的过程表征精度提升。