FLUSHING FLOW IMPACT ON INVASIVE AQUATIC PLANT IN A REACH DOWNSTREAM OF A DAM

Submerged aquatic plants are found in many rivers and have a significant impact on water ecosystems. Detailed field measurements of the biomass flux of specific aquatic plant species during floods may provide powerful support for understanding the removal, transport, and settlement of the focused aquatic plants during floods. Quantitative knowledge of the response of aquatic plant biomass to flood impacts is essential for establishing a predictive model of aquatic plant biomass change. This study aims at making clear how and how much aquatic plant is washed away by flushing flows. The field surveys were conducted during flushing flows implemented every in March from 2013 to 2015. A budget of aquatic plant biomass as a response to flushing flow impact was estimated.