中文摘要：

分别以金银木与合欢、金银木与栾树的混交林为试验材料,研究其对盐碱地理化性质的影响,为其在盐碱地的景观应用及栽培管理提供参考。结果表明,在物理性状方面,金银木与合欢、金银木与栾树混交林能够显著降低土壤容重,增加土壤孔隙度,且二者对土壤容重和孔隙度的改良效果差异不显著,但二者对土壤含水量的改良效果不明显。化学性状方面,2块混交林林地的p H值均显著高于对照,且2块林地的有机质含量与对照间差异不显著,但它们的含盐量均显著低于对照,且二者对土壤含盐量的改良效果差异不显著;2块混交林对土壤中HCO_3~-的改良效果不显著,但可以显著降低土壤中其他主要离子含量,其中,2块混交林对土壤Cl~-,Ca~（2＋）和Mg~（2＋）的改良效果差异不显著,但对Na~＋和K~＋的改良效果中,金银木与合欢混交林的改良效果显著好于金银木与栾树混交林。总体上,金银木与合欢混交林对盐碱地理化性质的改良效果好于金银木与栾树混交林。

英文摘要：

The effect of mixed plantations of Lonicera maackii and Albizia julibrissin, Lonicera maackii and Koelreuteria paniculata on physical and chemical properties of saline-alkali soil was studied to provide reference for landscape application and cultivation management. The result showed that two mixed plantations could not only significantly decrease soil bulk density and increase soil porosity but also the difference of their improvement effect was not significant, but their improvement effect was not significant for soil water content. For chemical properties, the value of soil p H of two mixed plantations was higher significantly than the CK, and the difference of the organic matter content of two mixed plantations was not significant compared with the CK, but their soluble salt content significantly decreased, and the difference of their improvement effect on soluble salt content was not significan. Two mixed plantations could decrease significantly other main ions content except bicarbonate ions content, and the difference of the improvement effect on chloridion, calcium and magnesium between two mixed plantations was not significant, but the improvement effect of the mixed plantations of L. maackii and A. julibrissin was better than the mixed plantations of L. maackii and K. paniculata on the content of sodium and potassium. On the whole, the improvement effect of the mixed plantations of L. maackii and A. julibrissin was better than the mixed plantations of L. maackii and K. paniculata on physical and chemical properties of saline-alkali soil.