Numerical simulations of nutrient transport changes in Honghu Lake Basin

Nutrients transported from catchments are one of the most important sources for lake eutrophication. The Honghu Lake Basin, located at the middle reaches of the Yangtze River, was chosen as the study area, the numerical simulations were used to assess the relative roles of natural, climate-induced changes versus human-related activities in changes of the nutrient transportation. The simulation results showed that the effect from human activities increased rapidly, and had become a dominant factor.