海泡石对镉污染土壤改良效果的研究

通过人工模拟污染、采用盆栽试验的方法,研究了海泡石对镉污染土壤的改良效果,试验结果表明:海泡石能显著促进空心菜的生长,抑制空心菜对镉的吸收,降低空心菜植株体内镉的浓度,同时,由于海泡石具有很大的表面积和较大的吸附量,可降低土壤镉的有效性。海泡石可作为镉污染土壤的改良剂。

Study on the amelioration effect of meerschaum in Cd contaminated soil

Pot experiments were conducted to study the amelioration effect of meerschaum in Cd contaminated soil through artificial simulated pollution. The result showed that growth of water spinach was increased observably, odsorption to Cd was decreased and Cd content in its plants was reduced with meerschaum applied. But meerschaum possessed much larger surface area and adsorption capacity, so Cd efficiency in soil was decreased. Therefore meerschaum can be regarded as soil conditioners in Cd contaminated soil.