Effects of thinnings on changes in the content of selected chemical elements in the aboveground dendromass of various stands of Spanish chestnut (Castanea sativa)

aerial parts calcio calcium castanea sativa chemical composition cinc cobre composition chimique copper cuivre espectrometria fer hierro iron lead magnesio magnesium manganese manganeso mixed forests monocultivo monoculture pinus sylvestris plomb plomo potasio potassium slovak republic sodio sodium spectrometrie spectrometry tilia zinc