The Effect of Simutating Acid Rain on the Release of Active Aluminum from Soil.
Fu Liusong, Wu Jiemin et al. (Dep of Environ. Protection, Zhejiang Agri-University, Hangzhou 310029)
The effect of simulating acid rain on the release of active aluminum from a typical acidic soil of Zhejiang Province was investigated by dymanic leaching experiments under laboratory conditions. Results indicate that much of the active Al would be released from soil if the soil is leached by acid rain with pH value lower than 4.3 over a long period of time; the critical acid rainfall, which leads the guick release of active Al from soil, is inversely proportional to the acidity of the acid rain. Based on the relationship between the critical acid rainfall and the acidity of the acid rain, the possible effect of natural acid rain on the release of active Al from soils can be assessed.