|
| 基于熵权的WQI法在鄱阳湖水质评价中的应用 |
| Application of WQI Method for Water Quality Evaluation of Poyang Lake Based on Entropy Weight |
| |
| DOI： |
| 中文关键词: 综合水质指数 熵权 水质评价 鄱阳湖 |
| 英文关键词: Water quality index（WQI） Entropyweight Water quality evaluation Poyang Lake |
| 基金项目:国家重点研发计划基金资助项目（2018YFE0206400, 2018YFC0407606）；国家自然科学基金资助项目（41971137）；中国长江三峡集团有限公司基金资助项目〖JP2〗（201903145）；中国科学院STS区域重点基金资助项目（KFJ-STS-〖JP〗QYZD-098）；青海省科技计划基金资助项目（2019-HZ-818） |
|
| 摘要点击次数: 645 |
| 全文下载次数: 32 |
| 中文摘要: |
| 基于2009—2018年鄱阳湖15个监测点位的水质监测数据，采用基于熵权改进的综合水质指数（WQI）法研究10年间该湖水质年际、季节演变特征及空间分布情况。结果表明：鄱阳湖WQI多年平均值为78.41，水质总体处于差等级，其中氮、磷污染较为严重；该湖水质空间分布差异较小，各湖区WQI较为接近，湖区西北部和东南部污染相对较为严重；该湖夏季水质较好，水质与降水量及湖面风浪强度紧密相关；该湖污染物主要来自入湖河流周边的工、矿、企业的废水及采砂造成的污染物释放，建议控制、治理入湖河流水质，提高鄱阳湖较重污染区水质。 |
| 英文摘要: |
| In this paper, the annual and seasonal change characteristics and spatial distribution of water quality in Poyang Lake were studied by entropy weight improved composite water quality index (WQI) method, based on the water quality data in 15 monitoring sites from 2009 to 2018. The results showed that the average annual WQI of Poyang Lake was 78.41 which was generally in a poor grade. Nitrogen and phosphorus pollution was relatively serious. The spatial distribution of water quality had little difference. The WQI was similar in different regions of the lake. The pollution was relatively serious in the northwest and southeast of the lake. The water quality was good in the summer. The water quality was closely related to precipitation and the intensity of the wind and waves on the lake. The pollutants mainly came from surrounding industries, mines, enterprises waste water and sand mining. It was proposed to control the water quality of rivers into the lake and improve the water quality of Poyang Lake in heavily pollution area. |
|
查看全文
查看/发表评论 下载PDF阅读器 |
| 关闭 |
