| 发达国家禁用(限用)含磷洗衣粉的措施 |
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| 引用本文： | 舒金华,黄文钰,高锡芸,吴延根.发达国家禁用(限用)含磷洗衣粉的措施[J].湖泊科学,1998,10(1):90-96. |
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| 作者姓名： | 舒金华 黄文钰 高锡芸 吴延根 |
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| 作者单位： | [1]浙江省环境监测中心站 [2]浙江农业大学环境科学系 |
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| 基金项目： | 浙江省自然科学基金!294059 |
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| 摘 要： | 于１９９５年４月－１９９６年１月对杭州西湖沉积物的若干物理，化学性状作了研究，沉降试验表明，沉积物中粒径在０．０６７－０．００２９mm之间的颗粒占沉积物总量的８０．８％，０．００２９mm以下的占４．３％，基本属于粉砂级范围，沉积物受扰动后再悬浮会明显影响水体的透明度，沉积物处于中性（ＰＨ＝６．６０－７．４０）和低厌氧状态（ＥＨ＝－３ｍＶ至１６７ｍＶ），界面溶解氧含量在１mg／Ｌ左右，沉积物处于中性（ＰＨ
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| 关 键 词： | 沉积物 杭州西湖 营养物质 主成分析 化学性状 |
| 收稿时间： | 1997/7/16 0:00:00 |
| 修稿时间： | 1997/10/6 0:00:00 |
The Practices of Restricting or Banning Phosphates in Detergents in Industralized Countries |
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| Shu Jinhu,Huang Wenyu,Gao Xiyun and Wu Yangen.The Practices of Restricting or Banning Phosphates in Detergents in Industralized Countries[J].Journal of Lake Science,1998,10(1):90-96. |
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| Authors: | Shu Jinhu Huang Wenyu Gao Xiyun and Wu Yangen |
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| Institution: | Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008,Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008,Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008 and Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008 |
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| Abstract: | Some physical and chemical characteristics of sediment in West Lake, Hangzhou are discussed in this article. Precipitation trial test shows that particles with diameter between 0. 067mm and 0. 0029mm constitute 80. 6 per cent of the total sediment in West Lake, and particles with diameter below 0. 0029mm constitute 4. 3 per cent of the total, and suspended particles can apparently affect the diaphaneity of water. Sediment in West Lake is situated in a neutral anaerobic status (pH = 6. 60 - 7. 40; Eh = - 3mV to 167mV), DO on the interface between water and sediment approximately equals lmg/L. Biology production number (BPN =0. 4836) and IG - total nitrogen ratio (IG/TN = 22. 54 - 30. 71 ) of sediment show that West Lake has a characteristic of both hyperproductive and high humus content. Principal Component Analysis (based on sediment parameters) demonstrates that the precursor of West Lake sediment is bog, and sediment in Xiaonan Lake is apparently different from other areas due to the diversion operation. |
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| Keywords: | Sediment West Lake(Hangzhou) nutrients Principal Component Analysis |
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