Relative percent cover of plant species for years 2013 2014 2016 2017 in LTER dry heath tundra experimental plots established in 1989, Arctic LTER Toolik, Field Station Alaska

Relative percent cover of plant species was measured in Arctic Long-Term Ecological Research (ARC-LTER) Dry Heath experimental plots. Treatments include Nitrogen Phosphorus (NP), and Control (CT), Nitrogen Phosphorus Unfenced (NFNP), Nitrogen Phosphorus Small Fenced (SFNP), Nitrogen Phosphorus Large Fenced (LFNP), Control (CT), Control Small Fenced (CTSF), and Control Large Fenced (LFCT).

本数据集测定了北极长期生态研究（ARC-LTER）干石南灌丛实验样地内各植物物种的相对盖度。实验设置的处理组包括：氮磷（Nitrogen Phosphorus, NP）组、对照组（Control, CT）、无围栏氮磷（Nitrogen Phosphorus Unfenced, NFNP）组、小型围栏氮磷（Nitrogen Phosphorus Small Fenced, SFNP）组、大型围栏氮磷（Nitrogen Phosphorus Large Fenced, LFNP）组、对照组（CT）、小型围栏对照（Control Small Fenced, CTSF）组及大型围栏对照（Control Large Fenced, LFCT）组。