Heavy Metal Stress in Vegetable Production Systems and Amelioration Strategies

A special issue of Horticulturae (ISSN 2311-7524). This special issue belongs to the section "Biotic and Abiotic Stress".

Deadline for manuscript submissions: 30 September 2025 | Viewed by 563

Special Issue Editors


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Guest Editor
School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, China
Interests: heavy metals; soil-crop-human system; geochemical process; pollution remediation; vegetable cultivation
Special Issues, Collections and Topics in MDPI journals

E-Mail Website
Guest Editor
School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, China
Interests: soil health; waste management; nutrient cycling; soil pollution remediation; crop cultivation and nutrition
Special Issues, Collections and Topics in MDPI journals

E-Mail Website
Guest Editor
Institute of Agricultural Resources and Environment, Shandong Academy of Agricultural Sciences, Jinan, China
Interests: heavy metals; soil; metal fractionation; transfer; risk assessment

Special Issue Information

Dear Colleagues,

Contamination with heavy metals has become a common environmental issue in the soil–vegetable system. Metal stress in this system can not only affect the growth of vegetables but can also have adverse effects on human health. Thus, environmental behavior, toxicity, risks, and tolerance mechanisms within this system are of great concern. In general, metals in the environment are derived from different sources, e.g., fertilization, the use of pesticides, wastewater irrigation, atmospheric deposition, natural effects, etc. Controlling metal sources can efficiently mitigate the stress and risk of metals in the soil–vegetable system. Additionally, to reduce metal phytoavailability and facilitate the safe production of vegetables, it is necessary to develop novel and highly efficient technologies in soil pollution remediation. This Special Issue welcomes original and review articles in (but not limited to) the following areas:

  • Source contribution to metal stress in the soil–vegetable system;
  • Environmental behavior and risk assessment of metals in the soil–vegetable system;
  • Toxicity and tolerance mechanisms of metals in vegetables;
  • Remediation technologies for mitigating metal stress in the soil–vegetable system and facilitating the safe production of vegetables.

Dr. Lanqin Yang
Dr. Yanyan Lu
Dr. Luji Bo
Guest Editors

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Keywords

  • heavy metal stress
  • migration
  • risk assessment
  • toxicity
  • vegetable production system
  • source management
  • remediation technologies

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Published Papers (1 paper)

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Research

17 pages, 2835 KiB  
Article
Effects of Aged Biochar on Remediation of Cd-Contaminated Soil and Greenhouse Gas Emission in Chinese Cabbage (Brassica chinensis L.) Growth
by Yanyan Lu, Xiaoyi Zhao, Yuxuan Li, Guanlin Li, Guizhu Wu, Qianwu Wang, Jian Li and Daolin Du
Horticulturae 2025, 11(7), 800; https://doi.org/10.3390/horticulturae11070800 - 5 Jul 2025
Viewed by 324
Abstract
Biochar has demonstrated effectiveness in environmental remediation. However, the physicochemical properties of biochar change with natural aging, which potentially impacts its efficacy. This study was designed to evaluate the effects of aged biochar (at 1% and 5% rates) on the growth of Chinese [...] Read more.
Biochar has demonstrated effectiveness in environmental remediation. However, the physicochemical properties of biochar change with natural aging, which potentially impacts its efficacy. This study was designed to evaluate the effects of aged biochar (at 1% and 5% rates) on the growth of Chinese cabbage, greenhouse gas emission, and Cd remediation in soils. Canada goldenrod (Solidago canadensis L.) feedstock biochar was subjected to three artificial aging processes (freeze–thaw cycle, dry–wet cycle, and hydrogen peroxide oxidation) to prepare aged biochar. Results showed that aging significantly altered properties and structure of biochar. Biochar addition had no effect on CH4 emissions, but it decreased cumulative N2O emission (all treatments) and increased cumulative CO2 emission (only the pristine biochar at 5% application rate). Aged biochar showed no effect on microbial life strategy and Shannon index. However, PB-5% application shifted the life history strategies of A-strategists (resource acquisition microbe) towards Y-strategists (high-yield microbe) such as Proteobacteria, Gemmatimonadota, Bacteroidota, Firmicutes and Actinobacteriota, which partially attributed to the enhanced soil CO2 emission. Aged biochar reduced plant uptake Cd and soil available Cd concentrations by up to 36.6% and 34.0%, respectively, ascribing to improved soil physicochemical properties and functional bacterial abundance. Full article
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