高分子化合物降低盐渍化土壤盐基离子效应研究

Effect of Polymer Compound on Improving Soil Salinization Cotton Base Ion

【目的】比较3种高分子化合物对盐渍化土壤性质的影响。【方法】本研究在石河子146团进行,通过大田试验向重度盐渍化土壤中加入聚丙烯酸盐类(PAAS)、聚丙烯酰胺类(PAM)和纤维素类(HEC)3种高分子化合物,并测定土壤电导率、pH、盐基离子的变化。【结果】PAAS、PAM和HEC3种高分子化合物均可降低土壤盐分,降低土壤中水溶性Na^+、Ca^(2+)、SO_4^(2-)、Mg^(2+)、Cl^-、HCO_3^-某一种或几种盐基离子含量,水溶性Na^+含量降低效果最为突出。【结论】聚丙烯酸盐类、聚丙烯酰胺类、纤维素类高分子化合物改良盐渍化土壤效果显著,对绿洲区盐渍化土壤降盐改盐具有重要意义。

【Objective】The objective of this experiment was to compare the effects of three polymer compounds on the properties of salinized soil.【Method】The experiment took place in Shihezi 146 state farms.This study to the severe salinization soil through field experiment with polyacrylate（PAAS）,polyacrylamide（PAM） and cellulose（HEC）,the determination of the change of soil electrical conductivity,pH,salt ion content.【Result】There linds of polymer compounds could decrease soil EC and content of water-soluble Na^＋,Ca^2＋,SO4^2-,Mg^2＋,Cl^-,HCO3^-,especially water-soluble Na^＋.【Conclusion】Therefore,polyacrylate（PAAS）,polyacrylamide（PAM） and cellulose（HEC） were the best compounds in improving salinization soil,and provide a reference for salt reducing.