碳水化合物是土壤有机质的重要组成成分，其含量和特性对土壤性质有很大的影响。
Soil carbohydrates constitute a significant part of the soil organic matter and the quality and quantity of carbohydrates in soils can influence the quality of soil.
碳水化合物是土壤有机质的重要组成成分，其含量和特性对土壤性质有很大的影响。
Soil carbohydrates constitute a significant part of the soil organic matter and the quality and quantity of carbohydrates in soils can influence the quality of soil.
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