Percent species cover from 14 flux canopy and 19 point frame 1m x 1m plots sampled near the shrub LTER sites at Toolik Field Station, Alaska, summer 2012.

Total and individual subsample species percent cover data for all plots where flux or point frame measurements were made in 2012 IVO the LTER Shrub vegetation plots at Toolik Field Station. All plots sampled were dominated either by B. nana or S. pulchra canopies. Cover estimates were made for the five most dominate functional groups using a 1m x 1m grid with 20cm2 blocks with each square representing four percent of the total area. Percentages represent absolute cover so do not sum to 100%.本数据集包含2012年于图利克野外站（Toolik Field Station）长期生态研究（Long Term Ecological Research, LTER）灌丛植被样地中，开展通量测量或点框法（point frame）测量的全部样地的总盖度与各子样本物种盖度百分比数据。所有采样样地的冠层均以 B. nana 或 S. pulchra 为优势种。本次盖度估算采用1m×1m的网格框，该网格被划分为20cm²的子块，每个子块对应总样方面积的4%，以此对五大优势功能群进行盖度估算。本次统计的百分比代表绝对盖度，因此各功能群盖度之和并不等于100%。