Assessment of Soil Heavy Metal Pollution and Phytoremediation Potential of Dominant Species in Water-Level-Fluctuation Zone of Large Reservoir
The water-level-fluctuation zone of a reservoir is an important connection between land and water; due to counter-seasonal rhythmic water level changes, this area is more sensitive and vulnerable, whereas the assessment and management of heavy metal pollution are still elusive. This study selected t...
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2025-01-01
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| author | Wenqiao Li Youwei Zuo Yunpeng Li Denghao Ning Huan Zhang Changying Xia Xiao Zhang Hongping Deng |
| author_facet | Wenqiao Li Youwei Zuo Yunpeng Li Denghao Ning Huan Zhang Changying Xia Xiao Zhang Hongping Deng |
| author_sort | Wenqiao Li |
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| description | The water-level-fluctuation zone of a reservoir is an important connection between land and water; due to counter-seasonal rhythmic water level changes, this area is more sensitive and vulnerable, whereas the assessment and management of heavy metal pollution are still elusive. This study selected the water-level-fluctuation zone in the hinterland of the Three Gorges Reservoir. Through a quadrats investigation, the soil pollution status of seven heavy metals and the composition of herbaceous plants were identified, and the potential of the dominant species for phytoremediation was assessed. The results showed that the overall pollution was at the alert level (<i>P<sub>N</sub></i> = 0.97) and a low ecological risk level (<i>RI</i> = 123.12). And the study area was primarily contaminated by a mixed source of traffic, agriculture, and industry. A total of 17 dominant species were calculated using importance values. Most dominant species had better phytoremediation potential for Cd and Cu. None of the 17 dominant species were hyperaccumulators, but they could still play an important role in phytoremediation due to their high adaptability to specific environments. The results have guiding significance for the management and remediation of soil heavy metal pollution in global reservoir areas, further promoting global ecological security and sustainable development. |
| format | Article |
| id | doaj-art-baabd05f3e71496eb3dea1b148215e7e |
| institution | Kabale University |
| issn | 2073-445X |
| language | English |
| publishDate | 2025-01-01 |
| publisher | MDPI AG |
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| series | Land |
| spelling | doaj-art-baabd05f3e71496eb3dea1b148215e7e2025-01-24T13:37:51ZengMDPI AGLand2073-445X2025-01-011419010.3390/land14010090Assessment of Soil Heavy Metal Pollution and Phytoremediation Potential of Dominant Species in Water-Level-Fluctuation Zone of Large ReservoirWenqiao Li0Youwei Zuo1Yunpeng Li2Denghao Ning3Huan Zhang4Changying Xia5Xiao Zhang6Hongping Deng7Key Laboratory of Eco-Environment in the Three Gorges Reservoir Region, Ministry of Education, School of Life Sciences, Southwest University, Chongqing 400715, ChinaKey Laboratory of Eco-Environment in the Three Gorges Reservoir Region, Ministry of Education, School of Life Sciences, Southwest University, Chongqing 400715, ChinaKey Laboratory of Eco-Environment in the Three Gorges Reservoir Region, Ministry of Education, School of Life Sciences, Southwest University, Chongqing 400715, ChinaKey Laboratory of Eco-Environment in the Three Gorges Reservoir Region, Ministry of Education, School of Life Sciences, Southwest University, Chongqing 400715, ChinaKey Laboratory of Eco-Environment in the Three Gorges Reservoir Region, Ministry of Education, School of Life Sciences, Southwest University, Chongqing 400715, ChinaKey Laboratory of Eco-Environment in the Three Gorges Reservoir Region, Ministry of Education, School of Life Sciences, Southwest University, Chongqing 400715, ChinaKey Laboratory of Eco-Environment in the Three Gorges Reservoir Region, Ministry of Education, School of Life Sciences, Southwest University, Chongqing 400715, ChinaKey Laboratory of Eco-Environment in the Three Gorges Reservoir Region, Ministry of Education, School of Life Sciences, Southwest University, Chongqing 400715, ChinaThe water-level-fluctuation zone of a reservoir is an important connection between land and water; due to counter-seasonal rhythmic water level changes, this area is more sensitive and vulnerable, whereas the assessment and management of heavy metal pollution are still elusive. This study selected the water-level-fluctuation zone in the hinterland of the Three Gorges Reservoir. Through a quadrats investigation, the soil pollution status of seven heavy metals and the composition of herbaceous plants were identified, and the potential of the dominant species for phytoremediation was assessed. The results showed that the overall pollution was at the alert level (<i>P<sub>N</sub></i> = 0.97) and a low ecological risk level (<i>RI</i> = 123.12). And the study area was primarily contaminated by a mixed source of traffic, agriculture, and industry. A total of 17 dominant species were calculated using importance values. Most dominant species had better phytoremediation potential for Cd and Cu. None of the 17 dominant species were hyperaccumulators, but they could still play an important role in phytoremediation due to their high adaptability to specific environments. The results have guiding significance for the management and remediation of soil heavy metal pollution in global reservoir areas, further promoting global ecological security and sustainable development.https://www.mdpi.com/2073-445X/14/1/90heavy metalphytoextractionriparian zonenative plantecological restoration |
| spellingShingle | Wenqiao Li Youwei Zuo Yunpeng Li Denghao Ning Huan Zhang Changying Xia Xiao Zhang Hongping Deng Assessment of Soil Heavy Metal Pollution and Phytoremediation Potential of Dominant Species in Water-Level-Fluctuation Zone of Large Reservoir Land heavy metal phytoextraction riparian zone native plant ecological restoration |
| title | Assessment of Soil Heavy Metal Pollution and Phytoremediation Potential of Dominant Species in Water-Level-Fluctuation Zone of Large Reservoir |
| title_full | Assessment of Soil Heavy Metal Pollution and Phytoremediation Potential of Dominant Species in Water-Level-Fluctuation Zone of Large Reservoir |
| title_fullStr | Assessment of Soil Heavy Metal Pollution and Phytoremediation Potential of Dominant Species in Water-Level-Fluctuation Zone of Large Reservoir |
| title_full_unstemmed | Assessment of Soil Heavy Metal Pollution and Phytoremediation Potential of Dominant Species in Water-Level-Fluctuation Zone of Large Reservoir |
| title_short | Assessment of Soil Heavy Metal Pollution and Phytoremediation Potential of Dominant Species in Water-Level-Fluctuation Zone of Large Reservoir |
| title_sort | assessment of soil heavy metal pollution and phytoremediation potential of dominant species in water level fluctuation zone of large reservoir |
| topic | heavy metal phytoextraction riparian zone native plant ecological restoration |
| url | https://www.mdpi.com/2073-445X/14/1/90 |
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