| 珠江干流(2008—2015年)水质变化趋势分析 |
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| 引用本文： | 单凤霞,刘珩.珠江干流(2008—2015年)水质变化趋势分析[J].广东水利水电,2017(3):13-16. |
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| 作者姓名： | 单凤霞 刘珩 |
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| 作者单位： | 珠江水资源保护科学研究所,珠江流域水环境监测中心,广东 广州 510611 |
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| 摘 要： | 以珠江干流为研究区域,选取源头及干流10个水质断面的2008-2015年7项参数监测数据,采用季节性kendall趋势检验法分析珠江干流的水质变化趋势,得出珠江干流各测站的pH、溶解氧(DO)、高锰酸盐指数(CODMn)、总磷(TP)、氟化物(F-)共5项参数趋于改善,五日生化需氧量(BOD5)及氨氮(NH3-N)共2项参数浓度基本保持不变;流域水质变化综合指数WQTI表明珠江干流总体水质状况趋向改善;水质呈现上游恶化中下游好转、污染物呈现以省区为单位以省会为中心的西部低东部高的地域分布特点.
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| 关 键 词： | 珠江干流 水质 kendall检验 变化趋势 |
| 收稿时间： | 2017/1/5 0:00:00 |
| 修稿时间： | 2017/1/5 0:00:00 |
Change Trend of Water Quality of Pearl River among 2008-2015 |
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| SHAN Fengxia and LIU Heng.Change Trend of Water Quality of Pearl River among 2008-2015[J].Guangdong Water Resources and Hydropower,2017(3):13-16. |
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| Authors: | SHAN Fengxia and LIU Heng |
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| Institution: | Scientific institute of Pearl River Water Resources Protection, Monitoring Center of Pearl River Valley Aquatic Environment, Guangzhou 510611, China and Scientific institute of Pearl River Water Resources Protection, Monitoring Center of Pearl River Valley Aquatic Environment, Guangzhou 510611, China |
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| Abstract: | The Pearl River as study area, 7 parameters monitoring data of 10 sections of source and trunk stream among 2008-2015 are selected.The Seasonal Kendall Method is used to analyze the water quality change trend.Results show that all 5 parameters pH, DO, CODMn, TP, F-tend to improve,and BOD5 and ammonia nitrogen remain unchanged;WQTI shows that the water quality the whole basin tends to improve;Water quality deterioration shows in the upstream and improvement in the middle-lower reaches, besides,the characteristics of the regional distribution of pollutants are capital-center and get higher from west to east. |
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| Keywords: | Pearl River water quality Kendall test change trend |
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