| Based on the meteorological data and the data of total carbon, inorganic carbon, total organic carbon and carbon dioxide from 8 sample sites (5 sites for surface water sampling and 3 sites for different layer water sampling) in Hongfeng Lake at August, October, November in 2013, and March in 2014, the spatial and temporal characteristics of carbon in Hongfeng Lake were analyzed. There were no obvious differences between the concentration of total carbon, inorganic carbon, organic carbon and carbon dioxide in the same layer at the same time, but the differences exist between different layers and different periods. The ratio of carbon that was used by aquatic organism will be higher in higher temperature and stronger light intensity conditions, so in which condition, the concentration of total carbon, inorganic carbon, and total organic carbon appeared to be lower, and more carbon dioxide were produced by aquatic organism. The difference of carbon distribution between different layer accused by different temperature and lighting condition would disappear after a vertical water mixing when air temperature drawdown sharply. |
