View in EDS

A Comprehensive Assessment of Heavy Metal Contamination in Chinese Lake Sediments and Submerged Macrophyte Responses: Multi‐Scale Impacts, Accumulation Capacity and Tolerance Mechanisms

Saved in:
Bibliographic Details
Title: A Comprehensive Assessment of Heavy Metal Contamination in Chinese Lake Sediments and Submerged Macrophyte Responses: Multi‐Scale Impacts, Accumulation Capacity and Tolerance Mechanisms
Authors: Xie, Shijie, Peng, Song, Wei, Yifan, Fang, Wenxiang, Shen, Shili, Duan, Changqun, Lauridsen, Torben Linding, Jeppesen, Erik, Pan, Ying
Contributors: OpenMETU
Source: Freshwater Biology. 70
Publisher Information: Wiley, 2025.
Publication Year: 2025
Subject Terms: adaptive strategies, bioaccumulation, community dynamics, metal pollution, resilience mechanisms, metal uptake, aquatic plant physiology
Description: Although considerable research has examined the effects of heavy metals on submerged macrophytes, a comprehensive review addressing individual, population and community perspectives is lacking. This review first summarises the current status of heavy metal contamination in aquatic sediments in China. It then provides an in‐depth analysis of heavy metal uptake, transport and accumulation in submerged macrophytes, as well as their broader ecological impacts across multiple scales. Additionally, we investigate the metal accumulation capacities of submerged macrophytes and examine their tolerance mechanisms. The findings underscore the severe contamination of aquatic ecosystems by heavy metals in sediments and reveal their multi‐scale impacts on submerged macrophytes. At the individual level, heavy metals disrupt cellular functions, impairing photosynthesis, respiration and overall metabolic balance. Over time, these effects may influence population dynamics. Species‐specific differences were observed in heavy metal accumulation and tolerance mechanisms, including variations in metal sequestration, antioxidant activation and phytochelatin production. Consequently, heavy metal pollution may further alter the submerged macrophyte community composition. This study identifies heavy metal pollution as a critical global issue, posing threats to submerged macrophytes across multiple ecological levels. Understanding its role in macrophyte decline is essential for ecosystem conservation. Additionally, our findings offer valuable insights into selecting heavy metal‐tolerant species to facilitate both macrophyte recovery and sediment remediation, thereby contributing to the sustainable management of aquatic ecosystems.
Document Type: Article
Language: English
ISSN: 1365-2427
0046-5070
DOI: 10.1111/fwb.70082
Access URL: https://hdl.handle.net/11511/115798
https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=105013544629&origin=inward
Rights: Wiley Online Library User Agreement
CC BY NC ND
Accession Number: edsair.doi.dedup.....48821cf650bf791966c28e194bc8a208
Database: OpenAIRE
Description
Abstract:Although considerable research has examined the effects of heavy metals on submerged macrophytes, a comprehensive review addressing individual, population and community perspectives is lacking. This review first summarises the current status of heavy metal contamination in aquatic sediments in China. It then provides an in‐depth analysis of heavy metal uptake, transport and accumulation in submerged macrophytes, as well as their broader ecological impacts across multiple scales. Additionally, we investigate the metal accumulation capacities of submerged macrophytes and examine their tolerance mechanisms. The findings underscore the severe contamination of aquatic ecosystems by heavy metals in sediments and reveal their multi‐scale impacts on submerged macrophytes. At the individual level, heavy metals disrupt cellular functions, impairing photosynthesis, respiration and overall metabolic balance. Over time, these effects may influence population dynamics. Species‐specific differences were observed in heavy metal accumulation and tolerance mechanisms, including variations in metal sequestration, antioxidant activation and phytochelatin production. Consequently, heavy metal pollution may further alter the submerged macrophyte community composition. This study identifies heavy metal pollution as a critical global issue, posing threats to submerged macrophytes across multiple ecological levels. Understanding its role in macrophyte decline is essential for ecosystem conservation. Additionally, our findings offer valuable insights into selecting heavy metal‐tolerant species to facilitate both macrophyte recovery and sediment remediation, thereby contributing to the sustainable management of aquatic ecosystems.
ISSN:13652427
00465070
DOI:10.1111/fwb.70082