Relationship between Environmental Conditions and Algal Growth on the Exterior Walls of the Ninna-ji Temple, Kyoto
Relationship between Environmental Conditions and Algal Growth on the Exterior Walls of the Ninna-ji Temple, Kyoto
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京都仁和寺外墙环境条件与藻类生长的关系
DOI：
10.1016/j.egypro.2015.11.149
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发表时间：
2015
期刊：
影响因子：
--
通讯作者：
C. Iba
中科院分区：
文献类型：
--
作者：
M. Nakajima;S. Hokoi;D. Ogura;C. Iba
我们可以发现，许多建筑物的外墙都变成了黑色和/或绿色。一些先前的研究表明，建筑物立面的污染是由空气中藻类的生长引起的。藻类的生长受到供水的强烈影响，包括降雨、冷凝和高湿度。然而，其他环境因子，如太阳辐射、温度和风对藻类生长的影响还没有研究。藻类长期生长的建筑物外立面，其藻类生长与环境因子的关系尚未得到研究。通过对京都市藻类生长状况的实地调查和对日本京都仁和寺久代明神神社建筑立面的测量，定量分析了藻类生长与环境因子之间的关系。2004年至2006年期间，屋顶、墙壁和油漆的一些部分进行了修复。然而，建筑物的外墙已经被藻类的生长染成了黑色。为了调查藻类生长污染的原因，自2011年以来一直测量环境条件以及墙壁的表面温度和湿度。通过L* 值和照片的对比分析，发现墙面L* 值的大小顺序与照片的暗度顺序一致。实验结果表明，壁面温度对壁面藻类的生长和死亡有一定的影响。
We can find that many building facades are discoloured black and/or green. Some previous studies showed that the soiling of building facades is caused by the growth of airborne algae. The algal growth is strongly influenced by the water supply, including the rain, the condensation, and high humidity. However, the influence of the other environmental factors, such as the solar radiation, the temperature, and the wind on the algal growth, has not been investigated yet. The relationship between the algal growth and the environmental factors on the building facades which the algae grow for long term has not been investigated. Therefore, we quantified the relationship between the algal growth and the environmental factors based on the field survey on the algal growth in Kyoto City and the measurement on the building facades at Kusyo Myojin Shrine, Ninnna-ji Temple in Kyoto, Japan.Kusyo Myojin Shrine was constructed from 1641 to 1647. Some parts of the roof, walls and the painting were repaired from 2004 to 2006. However, the building facades have already been colored black by the algal growth. To investigate the cause of the soiling by the algal growth, the ambient conditions, and surface temperature and humidity of walls were has measured since 2011. The soiling state of the walls was investigated by the L* values and the photographs of the walls.As a result, the order of the L* values of the wall surfaces agreed well with the darkness of the photographs. We concluded that the algal growth and death on the wall surface were affected by the surface temperature of the wall.