Preliminary study on the relationship between carbon sequestration at different nutrients by water spinach (Ipomoea aquatica) in constructed wetland

Autor: Wei, Yung-Sheng, 魏勇盛
Rok vydání: 2019
Druh dokumentu: 學位論文 ; thesis
Popis: 107
In this study, the difference of temporary carbon storing ability of water spinach under different conditions created by various concentrations of nutrients. This experiment was simulated in the laboratory to be the wetland-like condition to grow this plant. The soil and water spinach were shipped from Jiu-Ru Wetland in Pingtung County to use in this experiment and placed in the open square buckets. The experiment was conducted in an open space to allow the plant to reach sun-light and natural atmosphere. Nitrate, nitrite, phosphate, ammonia nitrogen in the water spinach samples were measured along the monitoring of organic matter and organic carbon in the soil. The result shows the good correlations between the carbon fixation, weather temperature and the growth of water spinach. While, the correlation between the nutrient concentration and the plant growth is relatively weak. This preliminary study suggests that the carbon fixation by water spinach through the uptaking of nutrients that are available in the wetland, and the carbon fixation ability can be also increased along the growth of water spinach. In addition, the carbon content in the wetland can be also removed easily by a harvesting of water spinach, while it will partly residues in the soil or sludge.
Databáze: Networked Digital Library of Theses & Dissertations