The desorption rate of Cd~2+in Red soil was > 50%, whereas the maximum desorpti on rate of Cd~2+were 42% and 19% in Huangni soil and Wushan soil, respectiv ely.

• 三种土壤中Cd2+解吸量依次减少,红壤中Cd2+解吸率均在50%25以上,而黄泥土和乌栅土中解吸率最高为42%25和19%25;