Altitudinal training sets of pollen rain – vegetation cover and modelled climate as a tool for the interpretation of paleoecological records

Abstract

Abstract. To improve our ability to reconstruct past environments and climate from fossil pollen records, modern proxy calibration studies along climatic and ecological gradients are needed. Here we present the first training set of modern pollen rain, vegetation, climate and terrain parameters developed along a 1700m-high transect in the western Italian Alps. The accurate knowledge on the relationships between these factors is essential for robust and sound reconstructions of past ecosystems based on microscopic plant remains.

Human settlement and vegetation-climate relationships in the Greenland Stadial 5 at the Piovesello site (Northern Apennines, Italy)

“…In the modern pollen-vegetation calibration dataset of the Alps (Davis et al, 2013; Furlanetto et al, submitted; Van der Knapp et al, 2001), an arboreal pollen around 50% with very low concentration and pollen accumulation rate values is characteristic for sites at or above the timberline altitude, which also receive pollen from lower vegetation belts transported by convective air masses (Van der Knaap et al, 2001; Pini et al, 2017a; Badino et al, 2018). These pine pollen proportions are similar to those reported in a nearby pollen record from palaeolake Berceto (870 m a.s.l., Bertoldi et al, 2004, 2007, Fig.…”

Γυρεοτοπία Σε Φυσικά Και Ανθρωπογενή Περιβάλλοντα

“…and the abundance of woody species (number of individuals -T ee a u da e ) contributing pollen to the air for (Α) the taxa for which the relationship is significant at the spatial scale of the best fitted model according to AIC, and ( ) the rest of the taxa, for which the relationship is not significant, at the scale of the entire sampled area for each station (zone 4). , Davies & Fall 2001, Pini et al 2017, Schüler et al 2014, Tonkov et al 2001 . . : Representation of Pinaceae and Quercus at Mt Olympos, in respect to their atmospheric pollen concentrations and their cover at the two types of study areas.…”