也就是说随着造林时间的延长，林地土壤微生物总量和土壤生物肥力有提高的趋势。
This suggested that the soil microbe number and bio-fertility were increased with the increase of plantation time.
也就是说随着造林时间的延长，林地土壤微生物总量和土壤生物肥力有提高的趋势。
This suggested that the soil microbe number and bio-fertility were increased with the increase of plantation time.
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