Ring widths measured on increment cores collected from generally large trees growing at the terrace, forest and treeline sites in Alaska, 1814-2012

Ring widths measured on increment cores collected from generally large trees growing at the terrace, forest and treeline sites. Sample size is approximately 25 cores/site.

本数据集包含对采自台地、森林及树线样地中生长的较大型树木的生长锥钻芯（increment cores）所测得的年轮宽度（ring widths）。每个样地的样本量约为25个树芯。