浇灌再生水对7种盆栽园林植物影响研究

选用7种北京地区常见园林植物(油松、白皮松、紫薇、银杏、玉兰、大叶黄杨、萱草)进行浇灌再生水试验,浇灌周期为4年,以自来水灌溉作为对照,研究了再生水灌溉对园林植物叶片矿质元素、叶绿素和细胞膜透性的影响。结果表明:再生水处理的植物叶片矿质元素含量总体上比对照增加,部分差异达到了显著水平;7种植物的叶片内均出现了钠元素的积累现象,重金属也有逐渐升高趋势,但植物表观并未表现出异常现象;与对照相比,再生水处理叶片叶绿素含量增加,细胞膜稳定性提高。

Influence of Reclaimed Water Irrigation on the Mineral Elements, Chlorophyll and Membrane Infiltration of Seven Garden Plants

The experiment of using reclaimed water to irrigate seven common plants(pinus tabulaeformis,pinus bungeana,ginkgo biloba,lagerstroemia indica,magnolia denudata,euonymus japonicus and hemerocallis fulva) was carried out for nearly four years.The research result showed that in contrast with tap water irrigation,reclaimed water irrigation enhance adversity resistance appreciably and the content of chlorophyll of leaves.The difference between reclaimed water irrigation and tap water irrigation is small on most mineral elements,but the sodium element accumulation appeared on all the leaves of seven plants.And so were the heavy metals.There was no obvious difference on the appearance of all the plants.