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通过连续提取方法研究了土壤固相组成对酸沉降敏感性的影响．结果表明，不同土壤质子缓冲反应的类型不同，因此缓冲容量及缓冲强度等指标也有较大差异．有机质对酸缓冲反应存在双重影响，取决于土壤原始ｐＨ值及盐基组成状态，活性氧化物酸性水解是低ｐＨ条件下重要的质子缓冲反应，而晶态氧化物也参与了缓冲反应，但受制于活化反应速率．除了土壤固相组成、种类和含量外，各组成之间的结合方式和相互作用也是影响酸缓冲性能的重要原因．
The effects of soil solid-phase composition on acid deposition sensitivity were studied by continuous extraction method. The results showed that different types of soil proton buffering reaction, so the buffer capacity and buffer strength and other indicators are also quite different. Organic matter has a double impact on the acid-buffering reaction. Depending on the initial pH of the soil and the composition of the basic salt, acidic hydrolysis of the active oxide is an important proton-buffer reaction at low pH. Crystalline oxides are also involved in the buffer reaction, The activation reaction rate. In addition to the composition, type and content of soil solid phase, the binding modes and interactions among the components are also important factors that affect the acid buffer performance.