Stable carbon and oxygen isotopes of modern pollen from nine European tree species collected in 2015 and 2016

Carbon and oxygen stable isotope ratios of modern pollen from abundant European tree species (Abies alba, Acer pseudoplatanus, Alnus glutinosa, Betula pendula, Carpinus betulus, Corylus avellana, Fagus sylvatica, Picea abies, Pinus sylvestris, Quercus robur). The pollen samples were collected in 2015 and 2016 in their respective flowering period in natural habitats. The dataset comprises additional information about the sampling surrounding and environmental factors for each sample.