[J].HEILONGJIANG AGRICULTURAL SCIENCES,2020,(10):86-89.[doi:10.11942/j.issn1002-2767.2020.10.0086]
武汉主城区常见行道树降温增湿效应研究
- 文献标志码:
- A
- 摘要:
- 为促进武汉城区行道树种规划,以武汉市汉阳区江城大道绿化带中3种常见绿化树种法桐(Platanus acerifolia)、香樟(Cinnamomum camphora)和广玉兰(Magnolia grandiflora)为研究对象,通过对其影响范围内的大气温度和大气相对湿度进行连续定点观测,对比分析各时段试验点和对照点的温湿度数据,研究不同树种的降温增湿效应。结果表明:长势相近的3种行道树均具有一定的降温增湿效应,与道路对照点相比平均降温率为4.3%~5.6%,平均增湿率为3.7%~7.9%,且降温增湿效果香樟>法桐>广玉兰;3种行道树下气温日变化呈“单峰型”变化趋势,10:00-12:00时段降温效应最大;大气湿度日变化趋势与气温刚好相反,12:00-14:00时段增湿效应达到最大。3种行道树降温增湿效应大小的不同可能与树冠面积、叶片密度和叶片有无蜡质相关。
参考文献/References:
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备注/Memo
收稿日期:2020-06-28