The roots of many wetlands and aquatic plants species are able to release oxygen and / or oxidant into the rhizosphere , resulting in the precipitation of iron and manganese oxides at the surface of roots , also referred to as fe - plaque in the case of fe 摘要许多湿地、水生植物根系都具有向根际环境释放氧气和氧化物，在根表和根际形成铁、锰氧化物胶膜的能力。
Contents of cd , pb , cu and zn in duckweed and alternanthera philoxeroides there were determined . as a result , high loadings of zn and cu in both plants were found ; in the duckweed , high content of pb was also observed 对香花桥中小河流中生长的水葫芦和水花生cd 、 pb 、 cu 、 zn的含量进行测定，结果表明这两种水生植物zn和cu的累积量均很高；而浮萍对pb也有明显富集。
Calendula silver altar with beautiful marigold is for the core , with refined from baekho silver needle , bright orange marigold in full bloom in the water , like the stunning underwater rare aquatic plants , gorgeous beckons , a blend pleasing “金盏银坛”是用美丽的金盏花为芯，用白毫银针精制而成,橙黄明亮的金盏花在水中怒放，宛若水底罕见的绝美水生植物，绚丽旖旎，柔美悦目。
Based on the basic characters analysis of the aquatic plants , the application zones , security and influence factors of biological repair are analyzed , and the new application of aquatic plant technology in polluted water purification are also introduced 摘要基于水生植物修复技术的基本特征，本语言着重对其应用中的区域性、安全性、影响因素等问题及目前新型植物修复技术进行了分析探讨。
Aquatic plants were one of the important factors in water scenery designing and benefit to improve and maintain water quality effectively . there are significances of research of aquatic plants in landscaping and ecology , as well as improving water quality 水生植物是营造水体景观不可或缺的要素，而且还能有效地净化和维持景观水体的水质，因此研究水生植物对水质的保护作用具有重要的景观、生态意义。
