在受到水泥粉尘污染的约 30 年生马尾松(Pinus massoniana Lamb.)、黑松(P .thunbergii  Parl.)和杉木〔Cunninghamia lanceolata (Lamb .)Hook .〕林地, 各建立 50 m2样地, 测定滞尘量, 凿取水泥厂投产(1983 年)前后各 6 年的木材样品, 进行树干解析和有关元素含量的测定。 结果表明, 水泥粉尘对林木的高、胸径和材积的生长有抑制影响, 并使木材中硅、钙、钾、磷含量增加, 镁、铁、铝含量减少。 这种影响随树种而异。
 

The effects of cement flying dust on the growth of some forest trees, such as China Fir ,
Black Pine, Masson Pine and on the content of relative elements in timber were investigated and analysed by establishing 50 m² sam ple lands per species and selecting analy tic woods in different polluted forest lands where trial trees grew , and by chiseling timber g rowing for 6 years befo re or after the year of 1983 w hen the cement factory put into productio n .Results showed that cement flying dust could exert injurious impact on the grow th of height , breast diameter , tim ber volume of forest trees, increase at certain deg ree the contents of Si , Ca, K , P w ith decreasing of Mg , Fe , Al in timber.How ever this im pact was changed w ith tree species .