造纸废水灌溉对沙漠植物体内钠离子含量的影响

Effects of Irrigation with Papermaking Wastewater on Sodium Ion Content of Desert Plant

通过对造纸废水灌溉不同年限以及不同生长部位的沙漠植物体内Na+含量进行研究。结果显示,红柳、沙枣、新疆杨相同生长部位的Na+含量均随着灌溉年限的增加而增大;经造纸废水灌溉相同时间后,在不同树种中相同生长部位的Na+含量存在差异,红柳体内Na+含量最高,沙枣次之,新疆杨最低,说明红柳、沙枣、杨树均能够有效吸收土壤中Na+,但红柳对Na+的吸收能力最强,沙枣次之,新疆杨最弱。

Sodium ion contents of desert plants irrigation with waster water of paper making in different years and in different vegetal parts were measured. The result showed that sodium ion content of Tamarix chinensis, Elaeagnus angustifolia, Populus alba increased gradually with the increase of irrigation year in the same vegetal part, and varied with the different desert plants, highest in of T. chinensis lowerin E. angustifolia lowest in P. alba indicating that three desert plants can efficiently absorb sodium ion from the soil with different extent.