Author(s): Jing Wan; Hong Peng; Xu Zhang; Wanshun Zhang; Xiaomin Chen
Linked Author(s):
Keywords: Nitrogen; Phosphorus; Release; Submerged macrophytes; Water-sediment interface; Ecological microcosm
Abstract: Submerged macrophytes play pivotal roles in the regulation of nitrogen (N) and phosphorus (P) release at the water-sediment interface, however, it remains unclear internal nitrogen and phosphorus release during the growth of submerged macrophytes. This study aims to have a better understanding of N and P release characteristics and their affecting factors during the growth of submerged macrophytes in an ecological microcosm experiment. The results showed that the average N and P release rates at the water-sediment interface in different treatments were negative and their absolute values ranked with the order of V treatment (treatment with Vallisneria natans) > M treatment (treatment with Myriophyllum verticillatum) > control (without planting submerged macrophytes). Results in this study are useful to understand internal N and P release under the regulation of submerged macrophytes, and provide a theoretical basis for the prevention and control of the internal pollution.
Year: 2020