黄河三角洲盐渍土中耐盐植物生长及脱盐效果研究

Study on the growth and soil-desalination of halophytes in saline soils of Yellow River Delta

对黄河三角洲盐溃土中耐盐植物生长及脱盐效果进行了研究。在植物种植之前，对种植区土壤的理化指标进行了测定，并进行了漫灌淋盐，降低土壤含盐量。选定了5种耐盐景观植物，柽柳、盐地碱蓬、千屈莱、芙蓉葵和绒毛白蜡在试验区进行了种植，对生长指标进行了监测和脱盐效果研究。结果表明，各植物在盐渍土中生长正常．且景观效果好。各植物脱盐效果约4．57％～6．32％，盐地碱蓬脱盐效果最好。

The growth and soil desalination effect of several halophytes in saline soils of Yellow River Delta were studied. Before planting, some important physical and chemical indexes of soils were measured, and flood irrigation was uset to desali nate soils. Then 5 kinds of halophytes, Tamari：r chinensis, Suaeda .tulsa, L ythrum salicaria, Hibiscus moscheutos and Frax itms velutina were planted in experimental plots. Several growth indexes were measured after plants had grown more than 4 months. Moreover, the desalination of plants was studied. The results showed that every plant grew normally in saline soils and had good landscape effect. Every kind of plants could desalinate soils. The desalination rate ranged from 4.57% to 6.32%, and Suaeda salsa got the highest desalination rate：