重庆市张关溶洞景观照明研究

溶洞照明推进了溶洞旅游业的发展，不科学的溶洞照明引起溶洞内灯光植物生长，破坏了溶洞内部特殊环境。通过对张关溶洞内灯光植物和人工光源的调研测量，研究了人工光源光谱、光照强度与溶洞灯光植物的生长关系，结果表明:光照强度高于20 000 lux或低于100 lux的传统光源及光谱能量分布在500～600 nm的窄光谱光源，能够有效抑制溶洞内灯光植物的生长；根据人工光源光谱、光照强度对灯光植物生长的抑制作用，提出了保持溶洞内特殊生态环境的景观照明技术指标。 

Study on landscape lighting of Zhangguan karst cave in Chongqing

Karst cave lighting promotes the development of karst cave tourism. However, the unscientific cave lighting causes the growth of the light plants in the cave, which destroys the special environment in the cave. In this paper,the relationship between the growth of light plant and the artificial light source of cave lighting are studied by measuring the intensity of light and plant growth and surveying the spectral energy distribution of the cave lighting source in the optical laboratory. The research results show that,(1) When the light intensity is higher than 20，000 lux, the green plant physiological system will be destroyed, which inhibits the growth of the light plant in the cave;(2)When the traditional light intensity is under 100 lux, it can’t provide enough energy for the growth of the light plant, which can achieve the purpose of preventing and controlling the growth of the light plant;(3) The artificial light source in the narrow light spectrum of 500-600 nm(yellow light and green light), such as yellow LED and green light LED, can inhibit the growth of green plants.