Arctic 2006: Relative percent cover was measured for plant species on Arctic LTER experimental plots in moist acidic, dry heath and moist non-acidic tundra, and for Sagavanirktok River plots in tussock and heath tundra.

Relative percent cover was measured for plant species on Arctic LTER experimental plots at Toolik field station in moist acidic and moist non acidic tussock tundra, and dry heath tundra, and on Sagavanirktok River toposequence plots in tussock and heath tundra.本数据集测定了两类样地中植物物种的相对盖度（Relative percent cover）：其一为图利克野外站（Toolik Field Station）的北极长期生态研究（Arctic LTER）实验样地，涵盖湿润酸性丛状苔原、湿润非酸性丛状苔原与干石楠苔原三类生境；其二为萨加瓦尼托克河（Sagavanirktok River）地形序列样地，涵盖丛状苔原与石楠苔原两类生境。