Assessing the critical level of SO[sub 2] for Scots pine (Pinus sylvestris L.) in northern Europe on the basis of needle sulphur fractions, sulphur/nitrogen ratios and needle damage
Assessing the critical level of SO[sub 2] for Scots pine (Pinus sylvestris L.) in northern Europe on the basis of needle sulphur fractions, sulphur/nitrogen ratios and needle damage
Assessing the critical level of SO[sub 2] for Scots pine (Pinus sylvestris L.) in northern Europe on the basis of needle sulphur fractions, sulphur/nitrogen ratios and needle damage
Assessing the critical level of SO[sub 2] for Scots pine (Pinus sylvestris L.) in northern Europe on the basis of needle sulphur fractions, sulphur/nitrogen ratios and needle damage