A study was undertaken to relate the sulphate sorption characteristics and buffering capacities in some soils with soil properties covering three major soil orders viz., Entisols , Inceptisols and Alfisols of Assam. Both sorption and maximum sulphur buffering capacity (MSBC) of these soils varied widely among the soils. Alfisols, in general, showed maximum sulphate sorption capacity ranging from 91.6 to 1300 ug g~(-1) along with highest MSBC (35.6 to 418 mL g~(-1)). Among the soil orders, Entisols, in general, showed lowest MSBC with 19.2 to 32.8 mL g~(-1) and lowest sulphate sorption capacity varying from 58.2 to 399 ug g~(-1). Such differences in sulphate sorption and MSBC were attributed to differences in their soil pH, amount of amorphous and crystalline oxides of Fe and Al, organic carbon content and available sulphate pools of these soils.
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机译：进行了一项研究，将硫酸盐在某些土壤中的吸附特性和缓冲能力与土壤性质涵盖了三个主要土壤阶次，即阿萨姆邦的Entisols，Inceptisols和Alfisols有关。这些土壤的吸附和最大硫缓冲能力（MSBC）在土壤之间差异很大。一般而言，Alfisol的最大硫酸盐吸附能力为91.6至1300 ug g〜（-1），最高的MSBC（35.6至418 mL g〜（-1））。在土壤阶中，总体上Entisols的MSBC最低，为19.2至32.8 mL g〜（-1），最低的硫酸盐吸附能力为58.2至399 ug g〜（-1）。硫酸盐吸附和MSBC的这种差异归因于它们的土壤pH值，铁和铝的无定形和结晶氧化物的量，有机碳含量以及这些土壤中可用的硫酸盐库的差异。
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