CAJ | 학술논문

以美人蕉、香蒲、垂穗莎草、玉带草为材料,研究了在模拟人工湿地条件下水生植物根际与非根际土壤中的微生物数量、种群、土壤酶活性特征.结果表明,不同水生植物根际、非根际间的细菌数量无明显差异,而真菌与放线菌的根际与非根际间差异较显著.根际硝化细菌数和反硝化细菌数最多的水生植物都是香蒲,分别为2.17×102个·g-1干土和6.17×102个·g-1干土,有机磷细菌数最多的是美人蕉为5.68×104个·g-1干土,无机磷细菌数最多的是玉带草为3.72×103个·g-1干土.4种不同水生植物的根际土壤脲酶、磷酸酶、硝酸还原酶、亚硝酸还原酶活性都较非根际土壤高,湿地植物的根际效应显著.
이미인초、향포、수수사초、옥대초위재료,연구료재모의인공습지조건하수생식물근제여비근제토양중적미생물수량、충군、토양매활성특정.결과표명,불동수생식물근제、비근제간적세균수량무명현차이,이진균여방선균적근제여비근제간차이교현저.근제초화세균수화반초화세균수최다적수생식물도시향포,분별위2.17×102개·g-1간토화6.17×102개·g-1간토,유궤린세균수최다적시미인초위5.68×104개·g-1간토,무궤린세균수최다적시옥대초위3.72×103개·g-1간토.4충불동수생식물적근제토양뇨매、린산매、초산환원매、아초산환원매활성도교비근제토양고,습지식물적근제효응현저.
A mimic experiment was carried out to study the microbial quantity,microflora,enzyme activities in the rhizosphere and non-rhizospbere of 4 species wetland plants(Canna generalis,Typha orientalis,Cyperus nutans,Reineckia carnea).Results showed that the number of fungi and actinomyces in rhizosphere soil of 4 wetland plants was obviously higher than that in non-rhizosphere soil,while no significant difference was observed in bacteria.Typha orientalis possessed the largest number of nitrifying bacteria and denitrifying bacteria in the rhizosphere,which were 2.17×102 g-1 and 6.17×102 g-1,resprectively.Canna generalis had the largest number of organic phosphobacteria,which was 5.68×104 g-1.Reineckia carnea had the largest number of inorganic phosphobacteria,which was 3.72×103 g-1.The activities of urease,phosphatase,nitrate reduetase,and nitrite reductase in rhizosphere soil of 4 wetland plants were higher than those in non-rhizosphere soil.The rhizosphere effect of wetland plants was obvious.