The researchers studied phosphorus distribution in sediment during algae blooms in Moon Bay, Taihu Lake. They found that total phosphorus and inorganic phosphorus decreased over time, while organic phosphorus first decreased then increased. Inorganic phosphorus forms peaked in spring, with Fe-combined phosphorus being the highest. Exchangeable phosphorus increased from winter to spring and then decreased. The correlation between inorganic phosphorus and total phosphorus was significant, indicating inorganic phosphorus controls total phosphorus levels in the sediment. Variance analysis showed differences in phosphorus levels between different months.