不同品种路易斯安娜鸢尾对水体氮磷的削减和耐淹能力研究

Study on nitrogen and phosphorus reduction and flooding tolerance of different varieties of Louisiana Iris

为使路易斯安娜鸢尾在河湖堤岸生态建设和面源氮磷污染拦截修复中更好地发挥优势,对不同品种路易斯安那鸢尾的氮磷净化、拦截及耐淹能力进行评价研究。结果表明:不同路易斯安娜鸢尾品种在富营养化水体中的适应性、氮磷削减能力和耐淹能力存在不同程度差异,其中被调查的15个品种中L4和L9无论从生长适应性、氮磷削减率还是耐淹能力方面均表现最优。本研究旨在为在不同河湖生态环境修复时,有针对性地选择路易斯安娜鸢尾进行实际应用提供理论和应用依据。

In order to give full play to the advantages of Louisiana Iris in the ecological construction of river and lake banks,as well as the interception and restoration of nitrogen and phosphorus pollution from non-point sources,it is necessary to evaluate the purification,interception,and flooding resistance of different varieties of Louisiana Iris in eutrophic water body.The results show that varying differences exist in adaptability,nitrogen and phosphorus reduction,as well as flooding tolerance in different varieties of Louisiana Iris.Among the 15 varieties investigated,L4 and L9 were the best in terms of growth adaptability,nitrogen and phosphorus reduction rate and flooding tolerance.The purpose of this study is to provide theoretical basis and application foundation for the targeted selection of Louisiana Iris for practical application in the restoration of ecological environment in different rivers and lakes.