The Impact Of Constituent Ions Of Acid Mist On Assimilation And Stomatal Conductance Of Norway Spruce Prior And Post Midwinter Freezing

Abstract

Norway spruce seedlings were sprayed twice weekly with one of a range of artificial mists at either pH 2.5, 3.0 or 5.6, for three months. The mists consisted of either (NH4)2SO4 (pH 5-6), NH4NO3 (pH 5-6), water (pH 5-6), HNO3 (Ph 2.5), HSO4 (pH 2-5 or pH