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对长期连续覆膜(1987年～2005年)及不同施肥处理的棕壤中土壤全硫及有效硫进行动态变化研究。结果表明:表层土壤全硫及有效硫含量差异显著,土壤全硫含量的垂直分布随土层加深而逐渐降低。四种施肥处理对全硫和有效硫含量有一定影响,全硫含量高低顺序为M2N2>M2>N2>CK;有效硫的顺序为N2>M2N2>M2>CK。裸地土壤全硫和有效硫含量随时间变化总体呈下降趋势,而覆膜土壤总体上升。
The dynamic changes of soil total sulfur and available sulfur in long-term continuous laminates (1987 ~ 2005) and different fertilization treatments were studied. The results showed that there was significant difference between total sulfur and available sulfur in surface soil, and the vertical distribution of soil total sulfur decreased gradually with soil depth. Four kinds of fertilization treatments had some effects on total sulfur and available sulfur content. The order of total sulfur content was M2N2> M2> N2> CK; available sulfur was N2> M2N2> M2> CK. The contents of total sulfur and available sulfur in bare soil generally decreased with time, while the total amount of soil with plastic film increased.