Study On Characteristic Of Carbon Fixation And Transpiration Of 10interior Foliage Plants

The relativity between interior environment and photosynthesis, transpiration, bacteriostatic action of volatile secretion of plant is the theories of the interior plant design. Under the different indoor environment, choose the best plant in the function of nitrogen fixation and oxygen release,transpired water release, absorbed caloric, bacteriostatic action . It is significant to interior plant design.10 species of foliage plants were tested indoor. On the basis of the study of dynamic light distribute .temperature and humidity of air indoor.This paper select 5 kinds of indoorses light environment. Under the different environment, study the abilbity of nitrogen fixation and oxygen release,transpired water release,absorbed caloric of different foliage plants by Li-6400 Portable Photosynthesis System.Study the ability of volatile secretion bacteriostasis by method of indoor dipping in water.the results are as follows:In the fact of nitrogen fixation and oxygen release of 10 species plant: When the light intensity is 668~820 u molm-2s-1 , the amount of plants' oxygen release is 0.34~ 5.26 g m-2 d-1, the amount of nitrogen fixation is 0.47~7.23 g m-2d-1. Among 10 species plants , the most is Ficus elastica. the Sansevieria trifasciata 'Hahnii' is the most little. When the light intensity is 20~104u molm-2s-1 the amount of plants' oxygen release is 0.05~4.55 g m-2 d-1, the amount of nitrogen fixation is 6.26~-0.33 g m-2 d-1. Among 10 species plants, Scindapsus aureus,Plectranthus australis,Aspidistra elatior, Ficus elastica are the best. Sansevieria trifasciata 'Hahnii' is the most little, when the light intensity is 3~5 umolm-2s-1, Nephrolepis cordifolia var.marshallii died, the rest plants all express thin .In the facts of transpired water release and absorbed caloric of 10 species plant: When the light intensity is 668~820 W molm-2s-1, the amount of transpired water release is 1492.37-122.78 g'm'^d"1, the amount of absorbed caloric is 3642.70~299.58 KJ m-2 d-1. Among 10 species plants , Pilea nummulariifollia is the most,and the Dracaena Sanderiana 'Golden edge 'is the most little. When the light intensity is 20~ 104 umolm-2s-1 the amount of transpired water release is 759.51~15.45g m-2 d-1, the amount of absorbed caloric is 1853.74~37.70 KJ m-2 d-1. Among 10 species plants, Scindapsus aureus Plectranthus australis Aspidistra elatior Ficus elastica are the best. Sansevieria trifasciata 'Hahnii' is the most little.In the facts of bacteriostatic action of volatile secretion:The volatile secretion from Aspidistra elatior had the strongest inhibition on Staphylococus aureus,the rate of bacteriostasis is 38.24%, Ficus elastica had the strongest inhibition on actinomycetes,the rate of bacteriostasis is 23.14%, Plectranthus australis had the strongest on Trichoderma viride Pers.ex Fr.,the rate of bacteriostasis is 29.62%. Scindapsus aureus had the strongest on Aspergillus niger,the rate of bacteriostasis is 30.22%. In the facts of contents bacteriostasis: Aspidistra elatior, Chlorophytutn comosum cv.Variegatum, had the most strongest on Trichoderma viride Pers. Ex Fr., the rate of bacteriostasis is 67.79%,62.20%. Aspidistra elatior , Sansevieria trifasciata 'Hahnii ' had the strongest on Aspergillus niger,the rate of bacteriostasis is 60.12%,63.16%, Sansevieria trifasciata 'Hahnii' had the strongest on Actinomycetes.The thesis study on the characteristic of photosynthesis, transpiration, bacteriostatic action of volatile secretion among 10 species of foliage plants in different environment indoor. These tests provide the theories for the interior plant design.from direct light area to bright area,it is appropriate to use of Ficus elastica, in direct rays area, it is appropriate to use Syngonium podophyllum 'Pixie ' , Scindapsus aureus, Nephrolepis cordifolia var.marshallii, Pilea nummulariifollia, Plectranthus australis.