Influence of the wavelength of the Artificial Lighting on the Indoor Environment and Plant Growth

• Main Authors: Jia,Xiong Lin, 林嘉雄
• Other Authors: Zhou, Bo Cheng
• Format: Others
• Language: zh-TW
• Published: 2006
• Online Access: http://ndltd.ncl.edu.tw/handle/72018819907994818737

碩士 === 樹德科技大學 === 應用設計研究所 === 94 === This study explored the utilization of the existing energy resources under the energy crisis in the 21st century and before alternative energy resources are clearly identified. It intended to use the knowledge on the nature to create new energy utilization mechanisms to solve the possible problems due to the energy crisis. This study used the environmental conditions of the outdoor experimental field in Taipei and indoor lab in Tainan as the bases for simulation, and used different types of artificial lights to mix light that is similar to natural light to apply on the wild herbs in the plantation tower in Taipei. The long-term growth of plant was observed and recorded. Most plants need light to grow. The light is not only used for illumination but also cultivation of vegetables and fruits in the green house, as well as indoor horticulture. The growth of plants is subjected to the composition of the spectrum during photosynthesis. This study was conducted under the condition of no reduction on the light demand, in hope to generalize possible models of spectra further to the literature review, and to improve the growth of the indoor or greenhouse plants when the external environmental factors are not suitable for the growth of the plants. The results are as follows: (1) A spectrum monitor was used for the preliminary investigation on the natural light and artificial light in the Taipei Experimental Field and Tainan Lab, and the result showed that if the artificial light needs to simulate natural light for the growth of plants, it must meet the required intensity in several spectral ranges. (2) According to the experimental results and literature view, the effect of the spectrum wavelength on the absorption of spectrum 400~450nm, 500~550nm, 600~650nm, 700~750nm during the photosynthesis is the greatest. This study focused on the effect of the four ranges on different environmental factors. (3) In the Tainan Experimental Field Lab, this study used different combinations of lighting sources to achieve the requirement of natural lighting, and recorded the growth of the plants. The comparison of the plants growth in the two area showed that the plants growth in Tainan is slower than that in Taipei, but with higher stability, though some spectrum wavelengths have not reached the intensity of natural light.