The effect of simulated acid rain on the biochemical composition of Scots pine (Pinus sylvestris L.) needles

acid deposition amino acids anthocyanidins arbre forestier azucares biochemistry biochimie carbohidratos carbohydrates chemical composition chemistry chimie composition chimique feuille finland finlande finlandia flavonoide flavonoides flavonoids foliage forest trees fructosa fructose glucide glucosa glucose hojas leaves metabolism metabolisme metabolismo metabolites metabolitos phenolic compounds pinus sylvestris pollution saccharose secondary metabolites sucres sucrosa sucrose sugars