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Assessment of Soil Heavy Metal Pollution and Phytoremediation Potential of Dominant Species in Water-Level-Fluctuation Zone of Large Reservoir

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  • Wenqiao Li

    (Key Laboratory of Eco-Environment in the Three Gorges Reservoir Region, Ministry of Education, School of Life Sciences, Southwest University, Chongqing 400715, China
    Chongqing Key Laboratory of Plant Resource Conservation and Germplasm Innovation, Institute of Resources Botany, School of Life Sciences, Southwest University, Chongqing 400715, China)

  • Youwei Zuo

    (Key Laboratory of Eco-Environment in the Three Gorges Reservoir Region, Ministry of Education, School of Life Sciences, Southwest University, Chongqing 400715, China
    Chongqing Key Laboratory of Plant Resource Conservation and Germplasm Innovation, Institute of Resources Botany, School of Life Sciences, Southwest University, Chongqing 400715, China)

  • Yunpeng Li

    (Key Laboratory of Eco-Environment in the Three Gorges Reservoir Region, Ministry of Education, School of Life Sciences, Southwest University, Chongqing 400715, China
    Chongqing Key Laboratory of Plant Resource Conservation and Germplasm Innovation, Institute of Resources Botany, School of Life Sciences, Southwest University, Chongqing 400715, China)

  • Denghao Ning

    (Key Laboratory of Eco-Environment in the Three Gorges Reservoir Region, Ministry of Education, School of Life Sciences, Southwest University, Chongqing 400715, China
    Chongqing Key Laboratory of Plant Resource Conservation and Germplasm Innovation, Institute of Resources Botany, School of Life Sciences, Southwest University, Chongqing 400715, China)

  • Huan Zhang

    (Key Laboratory of Eco-Environment in the Three Gorges Reservoir Region, Ministry of Education, School of Life Sciences, Southwest University, Chongqing 400715, China
    Chongqing Key Laboratory of Plant Resource Conservation and Germplasm Innovation, Institute of Resources Botany, School of Life Sciences, Southwest University, Chongqing 400715, China)

  • Changying Xia

    (Key Laboratory of Eco-Environment in the Three Gorges Reservoir Region, Ministry of Education, School of Life Sciences, Southwest University, Chongqing 400715, China
    Chongqing Key Laboratory of Plant Resource Conservation and Germplasm Innovation, Institute of Resources Botany, School of Life Sciences, Southwest University, Chongqing 400715, China)

  • Xiao Zhang

    (Key Laboratory of Eco-Environment in the Three Gorges Reservoir Region, Ministry of Education, School of Life Sciences, Southwest University, Chongqing 400715, China
    Chongqing Key Laboratory of Plant Resource Conservation and Germplasm Innovation, Institute of Resources Botany, School of Life Sciences, Southwest University, Chongqing 400715, China)

  • Hongping Deng

    (Key Laboratory of Eco-Environment in the Three Gorges Reservoir Region, Ministry of Education, School of Life Sciences, Southwest University, Chongqing 400715, China
    Chongqing Key Laboratory of Plant Resource Conservation and Germplasm Innovation, Institute of Resources Botany, School of Life Sciences, Southwest University, Chongqing 400715, China)

Abstract

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 ( P N = 0.97) and a low ecological risk level ( RI = 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.

Suggested Citation

  • Wenqiao Li & Youwei Zuo & Yunpeng Li & Denghao Ning & Huan Zhang & Changying Xia & Xiao Zhang & Hongping Deng, 2025. "Assessment of Soil Heavy Metal Pollution and Phytoremediation Potential of Dominant Species in Water-Level-Fluctuation Zone of Large Reservoir," Land, MDPI, vol. 14(1), pages 1-18, January.
    • Handle: RePEc:gam:jlands:v:14:y:2025:i:1:p:90-:d:1560526
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    References listed on IDEAS

    as
    1. Xingqing Zhao & Jian Huang & Xuyan Zhu & Jinchun Chai & Xiaoli Ji, 2020. "Ecological Effects of Heavy Metal Pollution on Soil Microbial Community Structure and Diversity on Both Sides of a River around a Mining Area," IJERPH, MDPI, vol. 17(16), pages 1-18, August.
    2. Yiqi Ma & Jing Ning & Hui Yang & Liankai Zhang & Can Xu & Chao Huang & Jianhong Liang, 2024. "Distribution Characteristics, Risk Assessment, and Source Analysis of Heavy Metals in Farmland Soil of a Karst Area in Southwest China," Land, MDPI, vol. 13(7), pages 1-15, July.
    3. Arwa A. AL-Huqail & Mostafa A. Taher & Ivan Širić & Madhumita Goala & Bashir Adelodun & Kyung Sook Choi & Piyush Kumar & Vinod Kumar & Pankaj Kumar & Ebrahem M. Eid, 2023. "Bioremediation of Battery Scrap Waste Contaminated Soils Using Coco Grass ( Cyperus rotundus L.): A Prediction Modeling Study for Cadmium and Lead Phytoextraction," Agriculture, MDPI, vol. 13(7), pages 1-18, July.
    4. Fang Yin & Wenrui Meng & Lei Liu & Kai Feng & Cuijing Yin, 2023. "Spatial Distribution and Associated Risk Assessment of Heavy Metal Pollution in Farmland Soil Surrounding the Ganhe Industrial Park in Qinghai Province, China," Land, MDPI, vol. 12(6), pages 1-16, June.
    5. Teng-Fei Ma & Jin Wu & Yi-Chang Yu & Ting-Ting Chen & Yuan Yao & Wei-Ling Liao & Li Feng & Jiang Pan, 2023. "An Assessment of the Heavy Metal Contamination, Risk, and Source Identification in the Sediments from the Liangtan River, China," Sustainability, MDPI, vol. 15(23), pages 1-15, November.
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