人工湿地异养硝化细菌的分离、鉴定及其硝化性能研究的中期报告摘要：在人工湿地中，异养硝化细菌起着关键作用。本研究对人工湿地中的异养硝化细菌进行了分离、鉴定，并对其硝化性能进行了研究。结果显示，共分离出5种异养硝化细菌，分别为BG-1、BG-2、BG-3、BG-4和BG-5；其中BG-2为广泛存在的硝化细菌Nitrosomonaseuropaea。在人工湿地实验中，BG-1和BG-2的硝化效率较高，分别达到了85%和92%。此外，对湿地环境因素的分析表明，温度对异养硝化细菌的生长和硝化活性有着重要影响。关键词：人工湿地；异养硝化细菌；分离；鉴定；硝化性能Abstract:Heterotrophicnitrifyingbacteriaplayakeyroleinartificialwetlands.Inthisstudy,heterotrophicnitrifyingbacteriainartificialwetlandswereisolatedandidentified,andtheirnitrificationperformancewasstudied.Theresultsshowedthatfivekindsofheterotrophicnitrifyingbacteriawereisolated,includingBG-1,BG-2,BG-3,BG-4,andBG-5;amongthem,BG-2wasNitrosomonaseuropaea,whichiswidelydistributedintheenvironment.Intheartificialwetlandexperiment,thenitrificationefficiencyofBG-1andBG-2washigh,reaching85%and92%,respectively.Inaddition,theanalysisofwetlandenvironmentalfactorsshowedthattemperaturehadanimportanteffectonthegrowthandnitrificationactivityofheterotrophicnitrifyingbacteria.Keywords:Artificialwetland;heterotrophicnitrifyingbacteria;isolation;identification;nitrificationperformance.