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Bolan等人将含不同矿物的两种表土加入不同量的CaCO_3或HCl,在20℃下培育4周后,研究不同浓度NaCl时离子强度对pH表面电荷以及磷酸盐和硫酸盐吸附的影响。
Bolan et al. Added two kinds of topsoil containing different minerals to different amounts of CaCO_3 or HCl and incubated at 20 ℃ for 4 weeks to study the effect of ionic strength on pH surface charge and phosphate and sulfate adsorption at different NaCl concentrations.