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作 者 ：靖元孝,杨丹菁,陈章和,陈兆平

期 刊 ：生态学报 2003年 23卷 3期 页码：614~619

关键词：两栖榕；人工湿地；去除率；水力停留时间；净光合速率；

Keywords:amphibious banyan, constructed wetland, removal rate, hydraulic rete ntion time （HRT）, net photosynthetic rate,

摘 要 ：研究了两栖榕在潜流型人工湿地的生长特性及其对污水的净化效果。一年多的实验表明 ,生长在人工湿地的两栖榕具有发达的侧根和不定根 ,保持正常的净光合速率、蒸腾速率、根系活力和生长速率。两栖榕人工湿地对 TN,TP,CODCr和 BOD5的去除率分别为 54.2 %、40 .9%、72 .4%和 74.3% ,与无植物系统相比较 ,去除率分别提高了 1 7%、1 2 %、1 0 %和 1 1 %。此外 ,两栖榕人工湿地系统中 ,水力停留时间对去除效果有一定影响。

Abstract:The amphibious banyan (Ficus spp.), an evergreen tree mainly in Guangdo ng Province, is conspicuously distinct from a commonly cultivated and widely dis tributed banyan in subtropical China, Ficus microcarpa, in morphology, anatomy a nd flooding tolerance. In the study presented in this report, two main approache s were made to: (1) the morphological, growth-related and photosynthetic charac t eristics, and (2) the purifying efficiency for sewage of amphibious banyan culti vated in the constructed wetland. ...

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