结果表明，氟污染使土壤黏粒的稳定性增强，土壤胶体的临界聚沉浓度增大；
The results indicated that fluorine pollution strengthened the stability of soil colloid and increased the critical flocculation concentration.
土壤中增加氟，对土壤胶体临界聚沉浓度增大的影响程度因土壤类型不同而不同，表现为红壤大于水稻土；
The effect extent of increasing the critical flocculation concentration is different among various soils, expressing that the effect on red soils is more remarkable than that on the paddy soil.
土壤中增加氟，对土壤胶体临界聚沉浓度增大的影响程度因土壤类型不同而不同，表现为红壤大于水稻土；
The effect extent of increasing the critical flocculation concentration is different among various soils, expressing that the effect on red soils is more remarkable than that on the paddy soil.
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