【摘要】 应用平衡法测定了４种浓度^１４Ｃ－苄嘧磺隆溶液在１０种土壤中的吸附与解吸性能。结果表明：土壤对苄嘧磺隆有很强的吸附性，且随供试土壤理化性质的差异其吸附性呈现明显变化，其中安徽红壤和江西红壤性水稻土吸附率为７３．２４％和５０．９５％；江苏黄潮土Ｂ和Ａ吸咐率分别为１０．７４％和２１．１２％。根据Ｆｒｕｅｎｄｌｉｃｈ方程计算：１０种土壤的吸附方程均呈良好线性关系；经计算机进行多元线性回归分析，吸附率与土壤理化性质呈显著相关，其中ｐＨ值与吸附率呈极显著负相关。吸附于土壤的苄嘧磺隆经水作用可被解吸，解吸率与其吸附率呈负相关．苄嘧磺隆在土壤中的强吸附性表明它在土壤中移动性小而难以淋脱。更多还原

【Abstract】 This paper attempts to clarify the adsorption and desorption of14C-bensulfuron-methyl in 10 types of soil through the batch equilibrium method. It is proved that they have strong adsorption of bensulfuron-methyl,which, however, varies with the different properties of the soil tested,Adsorption rates of red earth in Anhui Province and paddysoil (infant red earth) in Jiangxi Province are 73. 24% and 50. 95% respectively; for yellow fiuvio-aquicsoil B and A in Jiangsu they are 10. 74% and 21. 12% respectively. According to Fruendlich isotherm equation, the 10 kinds of soil show linear relation; Multivariate linear regression analysis of the soil shows significant regression and pH shows the most significant.Bensulfuron-methyl adsorpted by soil can be desorpted into water. The relationship between the absorption and desorption is negative linear regression. The strong adsorption of bensulfuronmethyl in soil proves that it has a lower migration and worse leaching.更多还原