Water Quality Evaluation and Comparison of Provincial Assessment Sections Based on Evaluation Method by Entropy-Weighted Cloud Model
As the water environment system is random and fuzzy,and the cloud model proposed in the 1990s can flexibly realize the conversion of data and concepts,the model is gradually applied in water quality evaluation.Water quality evaluation is essentially a multi-attribute classification problem,and the E...
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| Format: | Article |
| Language: | zho |
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Editorial Office of Pearl River
2022-01-01
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| Series: | Renmin Zhujiang |
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| Online Access: | http://www.renminzhujiang.cn/thesisDetails#10.3969/j.issn.1001-9235.2022.05.009 |
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| author | MA Congcong LIU Dengfeng HUANG Qiang YANG Zhiyong PAN Baozhu LIN Mu |
| author_facet | MA Congcong LIU Dengfeng HUANG Qiang YANG Zhiyong PAN Baozhu LIN Mu |
| author_sort | MA Congcong |
| collection | DOAJ |
| description | As the water environment system is random and fuzzy,and the cloud model proposed in the 1990s can flexibly realize the conversion of data and concepts,the model is gradually applied in water quality evaluation.Water quality evaluation is essentially a multi-attribute classification problem,and the Euclidean distance can well characterize the multi-attribute problem,which is also gradually applied in water quality evaluation.To compare the advantages and disadvantages of the variable-weighted Euclidean distance method and the evaluation method by the entropy-weighted cloud model in water quality evaluation,we utilize the water quality monitoring data of three major rivers in Shaanxi Province in 2020,i.e.,Weihe River,Hanjiang River,and Danjiang River.Specifically,we evaluate the environmental quality of surface water in 40 cross-sections of the three rivers using the above two methods.The results reveal that the water quality in the study area is good,and the water quality in more than 70% of the sites reaches Class III.The seriously polluted cross-sections are mainly located in the tributaries of Weihe River,and the main pollutants are chemical oxygen demand (COD) and ammonia nitrogen. |
| format | Article |
| id | doaj-art-f40df3f62e50459ea8c3202cf9a6507e |
| institution | Kabale University |
| issn | 1001-9235 |
| language | zho |
| publishDate | 2022-01-01 |
| publisher | Editorial Office of Pearl River |
| record_format | Article |
| series | Renmin Zhujiang |
| spelling | doaj-art-f40df3f62e50459ea8c3202cf9a6507e2025-01-15T02:27:07ZzhoEditorial Office of Pearl RiverRenmin Zhujiang1001-92352022-01-014347644681Water Quality Evaluation and Comparison of Provincial Assessment Sections Based on Evaluation Method by Entropy-Weighted Cloud ModelMA CongcongLIU DengfengHUANG QiangYANG ZhiyongPAN BaozhuLIN MuAs the water environment system is random and fuzzy,and the cloud model proposed in the 1990s can flexibly realize the conversion of data and concepts,the model is gradually applied in water quality evaluation.Water quality evaluation is essentially a multi-attribute classification problem,and the Euclidean distance can well characterize the multi-attribute problem,which is also gradually applied in water quality evaluation.To compare the advantages and disadvantages of the variable-weighted Euclidean distance method and the evaluation method by the entropy-weighted cloud model in water quality evaluation,we utilize the water quality monitoring data of three major rivers in Shaanxi Province in 2020,i.e.,Weihe River,Hanjiang River,and Danjiang River.Specifically,we evaluate the environmental quality of surface water in 40 cross-sections of the three rivers using the above two methods.The results reveal that the water quality in the study area is good,and the water quality in more than 70% of the sites reaches Class III.The seriously polluted cross-sections are mainly located in the tributaries of Weihe River,and the main pollutants are chemical oxygen demand (COD) and ammonia nitrogen.http://www.renminzhujiang.cn/thesisDetails#10.3969/j.issn.1001-9235.2022.05.009single-factor evaluation methodvariable-weighted Euclidean distance methodcomprehensive evaluation method by entropy weight cloud modelwater quality evaluationchanging trend of water quality |
| spellingShingle | MA Congcong LIU Dengfeng HUANG Qiang YANG Zhiyong PAN Baozhu LIN Mu Water Quality Evaluation and Comparison of Provincial Assessment Sections Based on Evaluation Method by Entropy-Weighted Cloud Model Renmin Zhujiang single-factor evaluation method variable-weighted Euclidean distance method comprehensive evaluation method by entropy weight cloud model water quality evaluation changing trend of water quality |
| title | Water Quality Evaluation and Comparison of Provincial Assessment Sections Based on Evaluation Method by Entropy-Weighted Cloud Model |
| title_full | Water Quality Evaluation and Comparison of Provincial Assessment Sections Based on Evaluation Method by Entropy-Weighted Cloud Model |
| title_fullStr | Water Quality Evaluation and Comparison of Provincial Assessment Sections Based on Evaluation Method by Entropy-Weighted Cloud Model |
| title_full_unstemmed | Water Quality Evaluation and Comparison of Provincial Assessment Sections Based on Evaluation Method by Entropy-Weighted Cloud Model |
| title_short | Water Quality Evaluation and Comparison of Provincial Assessment Sections Based on Evaluation Method by Entropy-Weighted Cloud Model |
| title_sort | water quality evaluation and comparison of provincial assessment sections based on evaluation method by entropy weighted cloud model |
| topic | single-factor evaluation method variable-weighted Euclidean distance method comprehensive evaluation method by entropy weight cloud model water quality evaluation changing trend of water quality |
| url | http://www.renminzhujiang.cn/thesisDetails#10.3969/j.issn.1001-9235.2022.05.009 |
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