The total flood volume is reduced, the flood duration is prolonged, the peak flow is decreased dramatically, and the flood hydrograph is characterized by the rapid rise and mitigatory recession;
洪水总量减少，洪水历时延长，洪峰流量显著降低，洪水过程线表现为涨洪陡、落洪慢的特点；
2
The conditions of synthesis of APG were optimized through orthogonal experiment. APG's surficial chemical properties were measured. APG's mitigatory effect on Aluminum was studied in base medium.