不同草地类型土壤养分含量的变化是随着土层加深而降低。
The soil nutrient in different rangeland stapes was gradually decreased with soil depth.
随着土层加深，有效硫含量逐渐增加、全硫含量依次减少。
Soil available s content increased gradually with increase in soil depth, whereas total s content decreased stepwise.
随着土层加深，三大类微生物数量减少，呈现自上而下逐渐减少的趋势。
Together with the soil layer's deepening, the quantities of the three major microbes are reducing, appearing a tendency of deeper soil layer, lower quantity of microbes.
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