Leaf Mass Area, Leaf Carbon and Nitrogen Content, Kougarok Road and Teller Road, Seward Peninsula, Alaska, 2016

Carbon, Nitrogen and Leaf Mass Area of leaves sampled from locations on the Kougarok Rd (transect A) & Teller Rd NGEE Arctic study sites, Seward Peninsula, Alaska. Species include: Alnus viridis spp. fruticosa, Arctostaphylos rubra, Betula glandulosa, Chamerion latifolium, Petasites frigidus, Salix alaxensis, Salix glauca, Salix pulchra, Salix richardsonii and Vaccinium uliginosum. This dataset contains 1 *.xlsx file, 1 *.pdf file, and 2 *.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).

本数据集采集自阿拉斯加苏厄德半岛科加罗克路（样带A）与特勒路北极下一代生态系统实验（Next-Generation Ecosystem Experiments: Arctic, NGEE Arctic）研究样地的叶片样本，测定指标包括碳、氮含量与比叶质量（Leaf Mass Area）。本次研究涵盖的物种包括：绿桤木（Alnus viridis spp. fruticosa）、红莓熊果（Arctostaphylos rubra）、腺毛桦（Betula glandulosa）、宽叶柳兰（Chamerion latifolium）、寒地蜂斗菜（Petasites frigidus）、阿拉斯加柳（Salix alaxensis）、灰柳（Salix glauca）、美丽柳（Salix pulchra）、理查逊柳（Salix richardsonii）以及沼生越橘（Vaccinium uliginosum）。本数据集包含1个*.xlsx文件、1个*.pdf文件以及2个*.csv文件。北极下一代生态系统实验（Next-Generation Ecosystem Experiments: Arctic, NGEE Arctic）是一项旨在通过构建对富碳北极生态系统的预测性理解及其气候反馈机制，降低地球系统模型不确定性的研究计划。该项目由美国能源部生物与环境研究办公室资助。NGEE Arctic项目共设有两处野外研究区域：1）位于阿拉斯加乌特恰维克（原巴罗）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；2）阿拉斯加诺姆以北苏厄德半岛的不连续永久冻土区域内的多个地块。通过观测、实验以及与现有数据集的综合分析，NGEE Arctic为多尺度建模提供了更为完善的知识库，并助力改进了美国能源部地球系统模型——能源极端尺度地球系统模型（Energy Exascale Earth System Model, E3SM），尤其是其陆面模型组件（E3SM Land Model component, ELM）在全球泛北极尺度下的过程表征能力。