Plant available NH4, NO3, and PO4 was determined at sites near ARC LTER Toolik acidic tundra and at a toposequence along the floodplain of the Sagavanirktuk River using 2 N KCL and weak HCL extracts, Arctic LTER 1987 to 2002

Plant available NH4, NO3, and PO4 was determined at sites near ARC LTER Toolik acidic tundra and at a toposequence along the floodplain of the Sagavanirktuk River using 2 N KCL and weak HCL extracts. This file complies data collected at different times from 1987 through 2001 and includes initial extracts taken for buried bag method of net nitrogen mineralization.

采用2 N氯化钾（KCl）与弱盐酸（HCl）浸提法，对ARC长期生态研究（ARC LTER）Toolik酸性苔原周边样地，以及萨格瓦尼尔特库克河（Sagavanirktuk River）河漫滩沿线的地形序列样地中的植物有效性铵态氮（NH4）、硝态氮（NO3）与磷酸根（PO4）进行了测定。本数据集汇编了1987年至2001年不同时段采集的相关数据，其中包含为开展净氮矿化埋袋法实验所获取的初始浸提样品数据。