| 广东肇庆星湖仙女湖区水生植被的演变 |
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| 引用本文： | 陈学年,郭玉娟.广东肇庆星湖仙女湖区水生植被的演变[J].湖泊科学,2005,17(4):334-339. |
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| 作者姓名： | 陈学年 郭玉娟 |
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| 作者单位： | 中国水利水电科学研究院,北京,100038 |
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| 基金项目： | 水利部重点创新基金(SCX 2003-02)
国家自然科学基金项目(40103008) |
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| 摘 要： | 通过在人工构建湿地“小宇宙”系统开展受控模拟实验，研究湿地湿生植物对水环境中磷的吸收和去除规律．本 次研究，选择对比四种不同类型挺水植物和浮叶植物，在不同体系环境条件下(如溶解氧、pH)对水环境中磷吸收和去 除．模拟实验通过对比四种不同类型的水生植物系统，结果显示，不同类型湿生植物对环境中磷的吸收强度和作用方式 有较大的差别．总体来看，实验体系水体中正磷酸盐浓度下降趋势大致呈现的“三阶段”变化模式，即：坡降期、陡降期、平 台期，不同期内磷去除率分别为：35．53%、29．98%和7．20%．
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| 关 键 词： | 模拟湿地 磷去除率 水力停留时间 水生植物 |
| 收稿时间： | 2004-12-14 |
| 修稿时间： | 2005-03-31 |
Succession of Aquatic Vegetation in Lake Xiannv of Lake Xinghu, Zhaoqing Oty, Guangdong Province |
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| CHEN Xuenian and GUO Yujuan.Succession of Aquatic Vegetation in Lake Xiannv of Lake Xinghu, Zhaoqing Oty, Guangdong Province[J].Journal of Lake Science,2005,17(4):334-339. |
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| Authors: | CHEN Xuenian and GUO Yujuan |
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| Institution: | China Institute of Water Resources and Hydropower Research ,Beijing 100038, P. R. China |
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| Abstract: | The rule of removing phosphorus in small-scale simulated wetland system has been studied.Considering the influence of the environmental factors as dissolved oxygen,pH,etc,we chose not only the aquatic plants,but also rooted emergent macrophyte as the experimental macrophytes.By contrasted four kinds of macrophyte systems,we found out that the absorbency and functionary mode of removing phosphorus by macrophytes are different.As a whole,we found out the three stages model of the density dropping of phosphorus,namely:slope lower stage,steep lower stage,steady lower stage,and the removal rate of each stage is:35.53%, 29.98% and 7.20%. |
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| Keywords: | Simulated wetland the removal rate of phosphorous hydraulic residence time macrophyte |
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