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采用分步提取法，测定了黄绵土、黑垆土、土和黄泥巴样品中不同形态硫含量及有关的土壤性质。通过相关分析，讨论了土壤总硫、水溶性硫、吸附性硫、ＨＯ可溶性硫及有机硫和ＮａＨＣＯ＿３提取的有效硫与土壤ｐＨ、ＣａＣＯ３含量、有机质含量、总氨基硫含量、＜０．００１ｍｍ粘粒含量及ＣＥＣ等的相关评。４种供试土壤中总硫含量差异较大．变动范围为８７．８８～２００．８μｇ／ｇ烘干土，水溶性硫含量相近（８．４４７－１１．９４μｇ／ｇ土），吸附性硫含量很少（０．５８２～２．４１５μｇ／ｇ土）。３种石灰性土壤的ＨＣｌ可溶性Ｓ含量较高（３０．９７～３８．９５μｇ／ｇ土），而黄泥巴仅为２．０３１μｇ／ｇ土。有机态硫占土壤全硫的４１．６０％～８８．１５％。有效态硫占全硫的８．９６３％～１０．０７％。
By using the stepwise extraction method, the contents of different forms of sulfur and related soil properties in the samples of loam, black loam, soil and yellow mud were determined. Through the correlation analysis, the available sulfur and soil pH, CaCO3 content, organic matter content, total amino sulfur content, soil total soluble sulfur, soluble sulfur, adsorptive sulfur, HO soluble sulfur and organic sulfur and NaHCO_3 extraction were discussed. Granule content and CEC and other related comments. The contents of total sulfur in the four tested soils differed greatly. The range of variation is 87.88 ~ 200.8μg / g, the content of water-soluble sulfur is similar (8.447-11.94μg / g soil), the content of adsorbed sulfur is very low (0.582-2.415μg / g earth). The contents of HCl-soluble S were higher in the three calcareous soils (30.97-38.95 μg / g soil), while the yellow mud was only 2.031 μg / g soil. Organic sulfur accounts for 41.60% ~ 88.15% of the total soil sulfur. Active sulfur accounts for 8.963% ~ 10.07% of total sulfur.