Liu Zhongzhen, He Yan, Xu Jianming, Huang Panming, Jilani Ghulam
College of Environmental and Natural Resource Sciences, Zhejiang University, Hangzhou 310029, China.
Environ Pollut. 2008 Mar;152(1):163-71. doi: 10.1016/j.envpol.2007.05.006. Epub 2007 Jun 29.
Thirteen soils collected from 11 provinces in eastern China were used to investigate the butachlor adsorption. The results indicated that the total organic carbon (TOC) content, clay content, amorphous Fe2O3 content, silt content, CEC, and pH had a combined effect on the butachlor sorption on soil. Combination of the data obtained from the 13 soils in the present study with other 23 soil samples reported by other researchers in the literature showed that Koc would be a poor predictive parameter for butachlor adsorption on soils with TOC content higher than 4.0% and lower than 0.2%. The soils with the ratio of clay content to TOC content (RCO) values less than 60 adsorbed butachlor mainly by the partition into soil organic matter matrix. The soils with RCO values higher than 60 apparently adsorbed butachlor by the combination of the partition into soil organic matter matrix and adsorption on clay surface.
采集了中国东部11个省份的13种土壤，用于研究丁草胺的吸附情况。结果表明，总有机碳（TOC）含量、黏土含量、无定形氧化铁含量、粉砂含量、阳离子交换量（CEC）和pH值对土壤中丁草胺的吸附具有综合影响。将本研究中13种土壤的数据与文献中其他研究者报道的另外23个土壤样品的数据相结合表明，对于TOC含量高于4.0%和低于0.2%的土壤，有机碳标化分配系数（Koc）将是丁草胺吸附的一个较差的预测参数。黏土含量与TOC含量之比（RCO）值小于60的土壤，丁草胺主要通过分配进入土壤有机质基质来吸附。RCO值高于60的土壤，丁草胺显然是通过分配进入土壤有机质基质和吸附在黏土表面相结合的方式来吸附。
