二氧化硫污染对马尾松生长影响的相关研究

Effects of air pollution by sulfur dioxide on masson pine growth

研究了４ａ中马尾松新梢受二氧化硫污染后的外部特征和生理反应。结果表明，马尾松在清明节前后第１次抽梢时受害最严重，新叶呈褐色坏死，叶绿素含量及可溶性糖含量显著下降，过氧化物酶活性显著上升，生长高度明显下降。说明新叶中积累的ＳＯ２－３和ＨＳＯ－３浓度超过一定值时，马尾松生长受到伤害。

Physiological reaction on sulfur dioxide pollution to masson pine was determined The results showed that masson pine was seriously hurt in the first sprout on April,and new leaves appeared brown The content of the chlorophyll and aoluble sugar were debased,the same with the growth of height,the activity of peroxidase increased These indicated that the growth of masson pine was hurt when content of SO 2- 3 and HSO - 3 in leaf cells was beyond a definitive point