Jiang Wei, Zhang Shuzhen, Shan Xiao-Quan, Feng Muhua, Zhu Yong-Guan, McLaren Ron G
State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, P.O. Box 2871, Beijing 100085, China.
Environ Pollut. 2005 Nov;138(2):285-9. doi: 10.1016/j.envpol.2005.03.008.
An attempt has been made to elucidate the effects of soil properties on arsenate adsorption by modeling the relationships between adsorption capacity and the properties of 16 Chinese soils. The model produced was validated against three Australian and three American soils. The results showed that nearly 93.8% of the variability in arsenate adsorption on the low-energy surface could be described by citrate-dithionite extractable Fe (Fe(CD)), clay content, organic matter content (OM) and dissolved organic carbon (DOC); nearly 87.6% of the variability in arsenate adsorption on the high-energy surface could be described by Fe(CD), DOC and total arsenic in soils. Fe(CD) exhibited the most important positive influence on arsenate adsorption. Oxalate extractable Al (Al(OX)), citrate-dithionite extractable Al (Al(CD)), extractable P and soil pH appeared relatively unimportant for adsorption of arsenate by soils.
通过模拟16种中国土壤的吸附容量与性质之间的关系，试图阐明土壤性质对砷酸盐吸附的影响。所建立的模型针对三种澳大利亚土壤和三种美国土壤进行了验证。结果表明，低能表面上砷酸盐吸附变异性的近93.8%可由柠檬酸盐 - 连二亚硫酸盐可提取铁（Fe(CD)）、粘土含量、有机质含量（OM）和溶解有机碳（DOC）来描述；高能表面上砷酸盐吸附变异性的近87.6%可由Fe(CD)、DOC和土壤中的总砷来描述。Fe(CD)对砷酸盐吸附表现出最重要的积极影响。草酸盐可提取铝（Al(OX)）、柠檬酸盐 - 连二亚硫酸盐可提取铝（Al(CD)）、可提取磷和土壤pH对土壤吸附砷酸盐似乎相对不重要。
