Water environment quality of Dongyu River and estuary area of Nansi lake (Shandong Province, China) based on the characteristics of diatom community
AbstractThe Dongyu River is a national site for monitoring the inflow of Nansi Lake, located in the southwest of Shandong Province, China. Water quality has a significant impact on the safety of the South-to-North Water Diversion Project. To investigate the water quality of Dongyu River and the estu...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Taylor & Francis Group
2023-07-01
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| Series: | Journal of Freshwater Ecology |
| Subjects: | |
| Online Access: | https://www.tandfonline.com/doi/10.1080/02705060.2023.2274349 |
| _version_ | 1827586365193191424 |
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| author | Shuyu Tong Liwei Yang Liyuan Wang Ran Yang Shiyue Chen |
| author_facet | Shuyu Tong Liwei Yang Liyuan Wang Ran Yang Shiyue Chen |
| author_sort | Shuyu Tong |
| collection | DOAJ |
| description | AbstractThe Dongyu River is a national site for monitoring the inflow of Nansi Lake, located in the southwest of Shandong Province, China. Water quality has a significant impact on the safety of the South-to-North Water Diversion Project. To investigate the water quality of Dongyu River and the estuary area of Nansi Lake, we collected water samples and surface sediments from Dongyu River and the estuary area in May 2019 and analysed the characteristics of the diatom communities and water quality. The results showed that 23026 diatom shells were identified at 15 sampling points in the study area, belonging to 161 species of 23 genera. The dominant diatom taxa were Cyclotella meneghiniana, Fragilaria fasciculata, Fragilaria ulna, Amphora libyca, and Cocconeis placentula. Redundancy analysis explained 43.2% of diatom change information. The Monte Carlo permutation test showed that NH4+-N and DO were significant environmental factors that affected diatom assembly, explaining 34.78% and 8.38% of the diatom variability, respectively. The results of the biological evaluation showed that the water quality of Dongyu River and the estuary area of Nansi Lake were in a light-medium pollution state. The RDA analysis of the diatom community and principal component analysis showed that the water quality of the middle and lower reaches of Dongyu River was poor. In general, the middle and lower reaches of Dongyu River are severely polluted by agricultural non-point sources and controlling the use of nitrogen and phosphorus fertilisers and the emission of nitrogen-containing organic matter can preserve the aquatic water quality of Dongyu River and the water safety of the East Route of the South-to-North Water Transfer Project. |
| first_indexed | 2024-03-08T23:59:55Z |
| format | Article |
| id | doaj.art-97025858e1be43e2b37b86247be2d6d0 |
| institution | Directory Open Access Journal |
| issn | 0270-5060 2156-6941 |
| language | English |
| last_indexed | 2024-03-08T23:59:55Z |
| publishDate | 2023-07-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | Journal of Freshwater Ecology |
| spelling | doaj.art-97025858e1be43e2b37b86247be2d6d02023-12-12T20:20:41ZengTaylor & Francis GroupJournal of Freshwater Ecology0270-50602156-69412023-07-0138110.1080/02705060.2023.2274349Water environment quality of Dongyu River and estuary area of Nansi lake (Shandong Province, China) based on the characteristics of diatom communityShuyu Tong0Liwei Yang1Liyuan Wang2Ran Yang3Shiyue Chen4School of Geography, Geomatics & Planning, Jiangsu Normal University, Xuzhou, ChinaSchool of Geography, Geomatics & Planning, Jiangsu Normal University, Xuzhou, ChinaSchool of Geography, Geomatics & Planning, Jiangsu Normal University, Xuzhou, ChinaSchool of Geography, Geomatics & Planning, Jiangsu Normal University, Xuzhou, ChinaSchool of Geography, Geomatics & Planning, Jiangsu Normal University, Xuzhou, ChinaAbstractThe Dongyu River is a national site for monitoring the inflow of Nansi Lake, located in the southwest of Shandong Province, China. Water quality has a significant impact on the safety of the South-to-North Water Diversion Project. To investigate the water quality of Dongyu River and the estuary area of Nansi Lake, we collected water samples and surface sediments from Dongyu River and the estuary area in May 2019 and analysed the characteristics of the diatom communities and water quality. The results showed that 23026 diatom shells were identified at 15 sampling points in the study area, belonging to 161 species of 23 genera. The dominant diatom taxa were Cyclotella meneghiniana, Fragilaria fasciculata, Fragilaria ulna, Amphora libyca, and Cocconeis placentula. Redundancy analysis explained 43.2% of diatom change information. The Monte Carlo permutation test showed that NH4+-N and DO were significant environmental factors that affected diatom assembly, explaining 34.78% and 8.38% of the diatom variability, respectively. The results of the biological evaluation showed that the water quality of Dongyu River and the estuary area of Nansi Lake were in a light-medium pollution state. The RDA analysis of the diatom community and principal component analysis showed that the water quality of the middle and lower reaches of Dongyu River was poor. In general, the middle and lower reaches of Dongyu River are severely polluted by agricultural non-point sources and controlling the use of nitrogen and phosphorus fertilisers and the emission of nitrogen-containing organic matter can preserve the aquatic water quality of Dongyu River and the water safety of the East Route of the South-to-North Water Transfer Project.https://www.tandfonline.com/doi/10.1080/02705060.2023.2274349Biological evaluationredundant analysisdiatom community structureDongyu RiverNansi Lake |
| spellingShingle | Shuyu Tong Liwei Yang Liyuan Wang Ran Yang Shiyue Chen Water environment quality of Dongyu River and estuary area of Nansi lake (Shandong Province, China) based on the characteristics of diatom community Journal of Freshwater Ecology Biological evaluation redundant analysis diatom community structure Dongyu River Nansi Lake |
| title | Water environment quality of Dongyu River and estuary area of Nansi lake (Shandong Province, China) based on the characteristics of diatom community |
| title_full | Water environment quality of Dongyu River and estuary area of Nansi lake (Shandong Province, China) based on the characteristics of diatom community |
| title_fullStr | Water environment quality of Dongyu River and estuary area of Nansi lake (Shandong Province, China) based on the characteristics of diatom community |
| title_full_unstemmed | Water environment quality of Dongyu River and estuary area of Nansi lake (Shandong Province, China) based on the characteristics of diatom community |
| title_short | Water environment quality of Dongyu River and estuary area of Nansi lake (Shandong Province, China) based on the characteristics of diatom community |
| title_sort | water environment quality of dongyu river and estuary area of nansi lake shandong province china based on the characteristics of diatom community |
| topic | Biological evaluation redundant analysis diatom community structure Dongyu River Nansi Lake |
| url | https://www.tandfonline.com/doi/10.1080/02705060.2023.2274349 |
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