| 富营养水体中3种沉水植物的生长竞争及其净化效果 |
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| 引用本文： | 雷泽湘,陈光荣,谭镇,李永胜,刘正文.富营养水体中3种沉水植物的生长竞争及其净化效果[J].湖北大学学报(自然科学版),2009,31(2):192-196. |
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| 作者姓名： | 雷泽湘 陈光荣 谭镇 李永胜 刘正文 |
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| 作者单位： | 雷泽湘,LEI Ze-xiang(仲恺农业工程学院环境科学与工程系,广东,广州,510225;暨南大学水牛生物研究中心,广东,广州,510632);陈光荣,CHEN Guang-rong(广东建设职业技术学院机电工程系,广东,广州,510450;暨南大学水牛生物研究中心,广东,广州,510632);谭镇,TAN Zhen(惠州市环境科学研究所,广东,惠州,516001);李永胜,LI Yong-sheng(仲恺农业工程学院环境科学与工程系,广东,广州,510225);刘正文,LIU Zheng-wen(暨南大学水牛生物研究中心,广东,广州,510632;中国科学院南京地理与湖泊研究所,江苏,南京,210008)
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| 基金项目： | 国家高技术研究发展计划(863计划)，广东省自然科学基金 |
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| 摘 要： | 研究苦草、黑藻和马来眼子菜3种沉水植物在太湖富营养化水体中的生长竞争状况及其对水体的净化效果．结果表明：3种沉水植物短期内可以在混合种群中共存，但竞争优势差别明显．黑藻具有在水中形成上位冠层、根系发达的特性，与苦草、马来眼子菜相比在占领水体上层空间、获取光照和吸收营养方面优势明显，表现出较强的竞争优势；马来眼子菜与苦草之间的竞争不明显，其占据水面面积大，获取光照多，苦草则主要占据水体下层空间，地下部分发达，混种时两者生物量相当．它们对水体中总氮、总磷和藻类叶绿素a的降低作用明显，单种时以黑藻对总氮、总磷的去除率最高，苦草对藻类叶绿素a的降低效果最好；混种时以苦草＋黑藻组对总氮去除率最高，以苦草十黑藻＋马来眼子菜组对总磷去除率最高．
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| 关 键 词： | 沉水植物 竞争 净化 富营养化 太湖 |
Growth,competition and purification effect of three submersed aquatic macrophytes in eutrophic water |
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| LEI Ze-xiang,CHEN Guang-rong,TAN Zhen,LI Yong-sheng,LIU Zheng-wen.Growth,competition and purification effect of three submersed aquatic macrophytes in eutrophic water[J].Journal of Hubei University(Natural Science Edition),2009,31(2):192-196. |
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| Authors: | LEI Ze-xiang CHEN Guang-rong TAN Zhen LI Yong-sheng LIU Zheng-wen |
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| Institution: | LEI Ze-xiang, CHEN Guang-rong, TAN Zhen, LI Yong-sheng, LIU Zheng-wen ( Department of Environmental Science and Engineering, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, Chinas2. Research Center of Hydrobiology, Jinan University, Guangzhou 510632, China 3. Department of Engineering, Guangdong Construction Vocational Technology Institute, Guangzhou, 510450, China 4. Huizhou Institute of Environmental Science, Huizhou 516001, China 5. Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008, China) |
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| Abstract: | Growth,competition and purification effect of three submersed aquatic macrophytes(Vallisneria natans(Lour.) Hara,Hydrilla verticillata(Linn.f.) Royle and Potamogeton malaianus Miq.) in eutrophic water area of Taihu Lake were studied.The results showed that three submersed aquatic macrophytes could coexist at the same time,but markedly different in advantage of competition.H.verticillata had advantage for space because formed an upper canopy which help to get more light and occupied the water surface,so it w... |
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| Keywords: | submersed macrophytes competition purification eutrophication Taihu Lake |
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