Needle chronologies on Pinus sylvestris in northern Estonia and southern Finland - Pensa, Margus; Jalkanen, Risto (Finnish Society of Forest Science, 1999)
Keywords: harsuuntuminen; neulasjälkimenetelmä; neulasten ikä; neulasten säilyminen; valintaharvennus; variseminen; crown thinning; needle trace method; needle age; needle retention; needle loss; shedding; 630*1