Soil columns experiment was used to investigate the effects of active carbon application on soil infiltration,evaporation characteristics and leaching loss of nutrients.There were six treatments with different active carbon's contents:0%(the control treatment),0.1%,0.3%,0.6%,0.9% and 1.2%.The results showed that:Along with the increase of active carbon application,the soil infiltration increased to a certain degree and then declined.After 100 minutes infiltration,the highest and lowest cumulative infiltrati...