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于1984年6月至1985年9月,对哈尔滨热电总厂绿地环境效益进行了调查研究。尽管该厂绿地是零星小块分布,但绿地环境效益还是较明显的。 研究结果表明:绿地可减尘14—17％;衰减噪声3.9—5.10dB(A);降低日平均气温0.5—1.4℃;增高日平均相对湿度6.1—13.8％。 树木叶片能吸收大气中的SO_2,某些树木叶片含硫量与大气SO_2浓度相关,可作为大气污染的指示树种。
From June 1984 to September 1985, conducted a survey on the environmental benefits of green space in Harbin Thermoelectric Plant. Although the plant green space is scattered patch, but the environmental benefits of green space is still more obvious. The results show that the green space can reduce the dust by 14-17%, the noise attenuation by 3.9-5.10dB (A), the average daily temperature decrease by 0.5-1.4 ℃ and the average daily relative humidity increase by 6.1-13.8%. Tree leaves can absorb atmospheric SO 2, and the sulfur content of some tree leaves is related to atmospheric SO 2 concentration, which can be used as an indicator species of air pollution.