Age, size, and disease severity of thinleaf alder stems along the Tanana River floodplains, collected in 2006 and 2007.

Thinleaf alder stands on the Tanana River floodplains, sampled in 2006 and 2007: A subsample of thinleaf alder stems were aged using tree-ring analysis, and the age structures of alder populations were estimated from their size structures (DN_alder_stand_structure1), based on the size/age relationships derived from this dataset. Relationships between disease incidence/severity and size/age were also explored. Included in this dataset are: the stem diameter at breast height (dbh), age of stem at ground level, age at breast height, and disease severity.