The soil under intensive cultivation and low addition of crop residues is exposed to erosion and reduction of organic matter. Increases in soil organic matter, cation exchange capacity (CEC) and ...

Simultaneously, exchangeable cations were displayed from exchange sites and Ca, Mg, K and Na in soil solution increased markedly. With increasing soil acidification, increasing amounts of cations were ...

During the acidification process, soils release base cations, such as calcium and magnesium, neutralizing the increase in acidity.

Second, Alewell et al. assert that increases in surface water alkalinity do not reflect recovery from soil acidification, and that the leaching of soil cations that occurs as sulphur desorbs from ...