Arsenic (As) and cadmium (Cd) are the most common toxic and harmful heavy metal elements in paddy soils and are easily transferred from the soil to grains. At present, As and Cd and their co-contamination in paddy soils in China are widespread, posing a serious threat to food security and human health. As and Cd have opposite environmental behaviors in soil, and the simultaneous remediation of co-contamination with As and Cd is a current technical difficulty for safe rice production. This review focuses on several practical techniques for simultaneous mitigation of As and Cd uptake and transport in rice in recent years, including water management, passivation, drenching techniques, electrokinetic remediation, phytoremediation, selection of low-accumulation rice varieties, and foliar spraying application. The treatment effects, mechanisms of action, and constraints of various technologies are summarized and analyzed; the development direction of the main barrier control technologies is proposed and the importance of constructing a comprehensive technology model with high regional adaptability is emphasized to provide a reference for the remediation of co-contamination with As and Cd in paddy and safe rice production.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.13227/j.hjkx.202210317 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Co-application of hydrothermal carbonization aqueous phase and biogas slurry reduced ammonia volatilization in paddy.
J Environ Manage
January 2025
Key Laboratory of Agro-Environment in Downstream of Yangtze Plain, Ministry of Agriculture and Rural Affairs, Institute of Agricultural Resources and Environment, Jiangsu Academy of Agricultural Sciences, Nanjing, 210014, PR China.
Application of biogas slurry (BS) can promote ammonia (NH) volatilization. Algae sludge and Quercus acutissima leaves are rich in resources and nutrients, and can be effectively converted into valuable products. Hydrothermal carbonization technology (HTC) is a sustainable method for the treatment of wet biomass.
View Article and Find Full Text PDFUtilizing conductive materials for reducing methane emissions in postharvest paddy rice soil microcosms.
Sci Total Environ
January 2025
Program of Sustainability in Biosystems, Institute of Agrifood Research and Technology (IRTA), Caldes de Montbui, Barcelona, Spain. Electronic address:
Paddy fields are a major anthropogenic source of global methane (CH) emissions, a powerful greenhouse gas (GHG). This study aimed at gaining insights of different organic and inorganic conductive materials (CMs) - biochar, fungal melanin, and magnetite - to mitigate CH emissions, and on their influence on key microbial populations, mimicking the postharvest season throughout the degradation of rice straw in microcosms under anaerobic conditions encompassing postharvest paddy rice soils from the Ebro Delta, Spain. Results showed that fungal melanin was the most effective CM, significantly reducing CH emissions by 29 %, while biochar amendment also reduced emissions by 10 %.
View Article and Find Full Text PDFElevated CO and goethite inhibited anaerobic oxidation of methane in paddy soils.
J Environ Manage
December 2024
College of Petrochemical Engineering, Lanzhou University of Technology, Lanzhou, 730050, China.
Microbially mediated anaerobic oxidation of methane (AOM) regulates methane (CH) fluxes. Increases in the global atmospheric carbon dioxide (CO) concentration and iron oxide rich in paddy soils influence AOM. However, the response and mechanisms between these two processes and AOM remain unclear.
View Article and Find Full Text PDFEffect of exogenous treatment with zaxinone and its mimics on rice root microbiota across different growth stages.
Sci Rep
December 2024
Department of Life Sciences and Systems Biology, University of Turin, Viale Mattioli 25, Turin, 10125, Turin, Italy.
Article Synopsis
- Enhancing crop productivity is crucial for food security, and biostimulants like zaxinone and its mimics show promise in boosting plant growth and yield.
- Their application was studied to see how they affect soil and rice root microbiota, focusing on bacterial and fungal communities at different growth stages.
- Results indicate that these treatments initially reduced beneficial microbes in the roots but allowed for a recovery in microbial diversity later, highlighting their potential as eco-friendly solutions for agriculture.
Metabolomic interpretation of bacterial and fungal contribution to per- and polyfluoroalkyl substances interface migration in waterlogged paddy fields.
Environ Pollut
December 2024
Key Laboratory of Poyang Lake Watershed Agricultural Resource and Ecology of Ministry of Agriculture and Rural Affairs, College of Land Resource and Environment, Jiangxi Agricultural University, Nanchang, 330045, China. Electronic address:
Per- and polyfluoroalkyl substances (PFAS) are widely distributed in paddy soils, and their multi-phase partitioning in soil fractions was proved to be strongly interact with soil microbial community composition and functions. Despite this, soil bacterial and fungal metabolic molecular effects on PFAS water-soil interface migration in waterlogged paddy fields still remain unclear. This study integrated soil untargeted metabolomics with microbial amplicon sequencing to elucidate soil metabolic modulations of 15 PFAS interface release.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!