Response reactions of conifers to alkaline dust pollution. Changes in the pigment system
1992
Mandre, M. | Annuka, E. | Tuulmets, L. (Estonian Academy of Sciences, Tallinn (Estonia). Inst. of Ecology)
A comparative field study of the effect of prolonged emission of alkaline (cement) dust on 60-80-year-old Norway spruce (Picea abies L.) and Scotch pine (Pinus sylvestries L.) was carried out. The effect of various levels of dust pollution occurring at different distances from the Kunda cement plant in North-East Estonia was investigated. Through mediating factors like alkalization of environment, deficiency of light, and changes in nutrition, alterations in the content of photosynthetic pigment in conifer needles was assessed
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