SA-01型高分子土壤抗蚀剂改良土壤团聚体水稳性的试验研究

Hao LI,Jiajun HU, Hongyu REN

Bulletin of Soil and Water Conservation(2018)

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Abstract
[目的]探讨自研抗蚀剂产品对土壤团聚体水稳性的影响,并分析其影响机理,为坡耕地水土流失治理工作提供支持.[方法]以自主研发的多糖类高分子抗蚀材料SA-01为对象,研究其对红壤团聚体水稳性的影响.[结果]施用0.25%浓度SA-01后,3组粒径团聚体水稳性平均提高2.6倍,施用1%浓度SA-01后3组粒径土壤团聚体水稳性都达到100%.且施用SA-01后,在相同粒径条件下,团聚体水稳性随SA-01浓度增加而增加;在相同施用浓度条件下,团聚体水稳性随其粒径增大而减小.[结论]团聚体水稳性试验表明,SA-01能大幅提升团聚体水稳性;抗蚀机理分析与讨论表明SA-01通过在土壤团聚体表面形成一层透水的保护层是团聚体水稳性提升的关键.
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