蚯蚓类中微生物群落活性对土壤团粒结构可起重要作用。

Microfloral activity in worm may have an important effect on soil crumb structure.

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可改善土壤物理特征，改良土壤团粒结构，减少土壤密实性。

Can Improve the soil physical characteristics, soil aggregate structure, reduce soil compactness.

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秸秆覆盖还田促进土壤团粒结构形成，提高了土壤水稳性团聚体含量，从而改善了土壤通透性和保水保肥性。

Straw mulched could improve soil granular structure, and increase the content of water-stable aggregates, so the ability of permeability, fertilizer and water conservation got improved.

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