id	keyword
fennia-5019	treeline
fennia-5019	kullman
fennia-5019	birch
fennia-5019	climate
fennia-5019	snow
fennia-5019	change
fennia-5019	mountain
fennia-5019	öberg
fennia-5019	area
fennia-5019	alpine
fennia-5019	et al
fennia-5019	forest
fennia-5019	scandes
fennia-5019	soil
fennia-5019	growth
fennia-5019	century
fennia-5019	ecology
fennia-5019	study
fennia-5019	warming
fennia-5019	swedish
fennia-5019	journal
fennia-5019	performance
fennia-5019	fennia
fennia-5019	kullman l
fennia-5019	period
fennia-5019	rise