Comprehensive Study on Wheat Heavy metals Contamination: Remediation, Absorption Mechanisms, and Transnational Perspectives

Soil heavy metal pollution poses a severe threat to agricultural production and human health. With the continuous development of industrialization and urbanization, there is a growing trend of heavy metal accumulation in the soil. Wheat, as one of the world's major staple crops, is susceptible to heavy metal pollution in its growth environment, drawing widespread attention. Therefore, conducting research on soil heavy metal pollution remediation and wheat heavy metal accumulation is of paramount significance. Firstly, this study aims to provide efficient and viable solutions for addressing soil heavy metal pollution. Through the development of novel magnetic nanomaterials, we can achieve low-dose, high-efficiency soil remediation, offering innovative technological means for land restoration. This has practical implications for improving soil quality and safeguarding agricultural production environments. Secondly, gaining in-depth understanding of the contribution rates of different wheat organ tissues to heavy metal accumulation, along with the impact of different growth stages on metal accumulation, contributes to the formulation of targeted agricultural management strategies. By elucidating the contribution rates of various organ tissues, monitoring and control measures can be tailored, thereby reducing heavy metal content in agricultural products and ensuring food safety. Lastly, studying the impact of different cultivation methods on wheat heavy metal accumulation provides guidance for sustainable agricultural development. The introduction of novel agricultural practices, such as organic farming, may play a positive role in reducing heavy metal pollution. Through a comprehensive understanding of the mechanisms of different cultivation methods, this research can inform the advancement of future sustainable agriculture. research can inform the advancement of future sustainable agriculture. The main objectives of this thesis work are: 1. Investigate the effectiveness of novel magnetic nanomaterials in soil heavy metal pollution remediation, optimizing key parameters for remediation methods. 2. Explore the contribution rates of different wheat organ tissues to heavy metal accumulation, clarifying the roles of various organ tissues in heavy metal transfer. 3. Analyze the impact of different growth stages on heavy metal accumulation in wheat, identifying key periods during the growth cycle. 4. Compare the influence of different cultivation methods on wheat heavy metal accumulation, revealing the mutual relationships between cultivation methods and soil heavy metal migration and accumulation. 5. Propose targeted soil and agricultural management methods to reduce the pollution risk of heavy metals in wheat grains, ensuring the quality and safety of agricultural products.