矾山抗环境污染树种的调查

Investigations on Pollution-resistance Tree Species in Fanshan of Cangnan

为探求加速矾山矿区绿化的途径，进行了抗污染树种的调查，结果表明：①环境污染物主要是ＳＯ２；②ＳＯ２对被害植物的危害程度，草本植物比木本植物受害严重，年幼植株比成年植株易遭危害，木本经济植物受害重于木本用材、薪炭植物；③土壤和空气中的湿度高或贫瘠土壤等环境因素及增施Ｎ素肥料等，都会加重植物受害。增加绿地面积，选择抗ＳＯ２树种进行绿化是可以达到改善环境的目的。

Fanshan is a town famous with aluminite. Investigations on pollution-resistance tree species in Fanshan, Cangnan of Zhejiang showed that: 1. SO2 is the principal pollution;2. herbaceous plant, young plant and economic wood-plant were respectively damaged more seriousely than wood-plant, adult plant, timber wood and fuel wood; 3. plant would damaged more with high humidity in soil and air,poor soil and application of N fertilizer. Environment could be improved by increasing forestation area and forestation with SO2-resistance tree species.