期刊论文

中文

核农学报

1000-8551

2012

26

5

798-802

KZCX2-YW-T07:中国科学院知识创新工程重要方向项目 20100491005-8:外国专家局项目

本校为其他机构

为明确水生植物对农田排水沟渠中氮、磷吸收效果的影响,本研究以生态沟渠中水生美人蕉、铜钱草、黑三棱、狐尾藻和灯心草为试验植物,对5种水生植物的生物量以及吸收、累积的氮、磷量进行测定。结果表明：不同水生植物生物量有差异,平均总生物量在1.10～2.43kg/m2之间,其中以水生美人蕉的生物量最大,达2.43kg/m2。5种水生植物地上部分的氮、磷浓度分别在8.41～20.67g/kg和1.41～3.40g/kg之间,狐尾藻氮、磷浓度最高;而地下部分的氮、磷浓度分别在4.41～10.47g/kg及1.08～1.90g/kg之间,不同水生植物间差异显著,以狐尾藻氮浓度和铜钱草磷浓度为最高;地上部分氮、磷累积量的变化范围分别7.40～28.23g...

The objective of this study is to determine the absorption effects of aquatic plants of nitrogen and phosphorus in field drainage ditch.Five aquatic plants of Canna glauca,Hydrocotyle vulgaris,Sparganium stoloniferum,Myriophyllum verticillatum and Juncus effusesin ecological ditch were used to investigate biomass,contents and accumulation of nitrogen and phosphorus.Results indicated that there were some differences in biomass among different aquatic plants with the whole biomass of 1.10~2.43kg/m2,and Canna glauca were the highest,2.43kg/m2 among five aquatic plants.The nitrogen and phosphorus ...