The contribution of straw to the formation of >0.25mm soil WSA was 87% in the soil with less clay, and 58% in the soil with more clay.

• 秸秆对粘粒含量较低的土壤中大于0.；25mm水稳性团聚体的形成所作的贡献为87%25，对粘粒含量较高的土壤所作的贡献为58%25。