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二氧化硫是污染环境中数量最多,危害普遍的有毒气体之一,它来源于含硫燃料煤、石油的燃烧及含硫矿物的冶炼过程。SO_2对树木、农作物、牲畜及人类都有一定的毒害作用。因此,选择和研究树木对SO_2的抗性和净化能力,对工农业生产和人民健康都有一定的意义。我们在树木对SO_2的抗性和净化能力研究中,做了以下几项研究工作。一、抗性树种的选择为了了解和掌握SO_2污染地区树木的现场生长情况和抗性表现,我们于1976年春、夏、秋三季,分别深入到杭州、宁波、绍兴、金华
Sulfur dioxide is one of the most toxic and hazardous toxic gases in the polluted environment. It is derived from sulfur-containing fuel coal, oil combustion and smelting of sulfur-bearing minerals. SO 2 has certain toxic effects on trees, crops, livestock and humans. Therefore, selecting and studying the resistance and purifying ability of trees to SO 2 has certain significance to industrial and agricultural production and people’s health. In our research on the resistance and purification of SO 2 to trees, we have done the following research works. I. Selection of Resistant Tree Species In order to understand and master the field growth and resistance performance of trees in SO_2-contaminated areas, we went to Hangzhou, Ningbo, Shaoxing and Jinhua respectively in the spring, summer and autumn of 1976.