Effects of water exchange rate on morphological and physiological characteristics of two submerged macrophytes from Erhai Lake.

ABSTRACT: Growth patterns of aquatic macrophytes have been shown to vary in response to hydrological properties; however, such properties are typically characterized by water level fluctuation, flow velocity, flooding season, and sedimentation, but not by water exchange rate (WER). Herein, we experimentally investigated how WER (three levels: exchange 0%, 20%, and 40% of total water per day) affects water and sediment properties, and the consequences that these variations have on the individual responses of two submerged macrophytes, Hydrilla verticillata and Myriophyllum aquaticum which were planted in two different sediment types (sand and clay). In the experiment without ramets, it was found that turbidity, pH value, and dissolved carbon dioxide concentration of the system water wer

SUBMITTER: Yuan DY 

PROVIDER: S-EPMC6308862 | biostudies-literature | 2018 Dec

REPOSITORIES: biostudies-literature