摘要
根据测定结果,茂名市绿化环境效应有:小气候效应——降温0.3～1.3℃,增加相对湿度 3～19％,遮荫10304.9～31758.81ux;负离子效应——绿地中负离子浓度是 0.60×10~2～5.15×10~2个/cm^3;消声效应——净消减噪音量为0.3～6.3dB(A)。为了提高绿化环境效应,绿化覆盖率须达35％以上,应是多层次乔灌草结合、阔叶针叶搭配的复合绿化结构。
According to the results of measuring, the environmental effects of planting trees in Maoming City are microclimate effects: lowering temperature, increasing air humidity and sunshade, engendering anion effect, and noise elimination effect of planting trees, the plant cover smust be increased at least 35%. The green belt must be compound structure by combining of arbor, shrub, and grass, or broad leaf tree and coniferous trees
出处
《中山大学学报论丛》
1990年第1期56-61,共6页
Supplement to the Journal of Sun Yatsen University
关键词
绿化
环境效应
小气侯效应
消声消应
负离子效应
planting tree
environmental effects
microclimate effect
noise elimination effect
engendering anion effect
