聚丙烯酰胺对土壤物理性质的影响

以不同剂型、不同浓度对土壤施入聚丙烯酸胺，探讨其对土壤物理性质的影响，试验结果表明:土壤经聚丙烯酸胺处理后一般沉降系数增大9%，分散系数减少7%～及9%，结构系数增大3%～8%，水稳性团粒含量增加30%～50%，结构性能增强3%～8%，土壤渗透性能增大32%。这些指标证明该材料是较好的土壤结构改良剂之一，对防治土壤侵蚀起重要作用。

Polyacrylamide Effect on Soil Physical Nature

The effect on soil physical nature was probed by application of different dose and various polyacrylamide consistencies. The results should that the general sediment coefficient is increased more 9%, the structure coefficient more 3%~8%, the content of hydric stable dumpling more 30%~50%, the structure function more 3%~8%, the soil permeability more 32% and the disperse coefficient is less 7%~19% after by polyacrylamide treatments. These index have proved that polyacrylamide material be good improvemental matter to soil erosion control.