A Comprehensive Evaluation System for the Stabilization Effect of Heavy Metal-Contaminated Soil Based on Analytic...

Area of Science:

• Environmental Science
• Soil Science
• Agricultural Science

Background:

• Heavy metal contamination in farmland soil poses significant environmental and health risks.
• Current methods for evaluating soil remediation effectiveness are insufficient for scientific assessment.
• Stabilization technology is a common approach for remediating contaminated soils.

Purpose of the Study:

• To construct a comprehensive and scientifically rigorous evaluation system for farmland soil remediation effects.
• To establish clear criteria for assessing the success of soil remediation efforts.
• To provide a basis for sustainable utilization of remediated agricultural land.

Main Methods:

• Bibliometric analysis was employed to identify key indicators.
• Analytic Hierarchy Process (AHP) was utilized to structure the evaluation system.
• Sixteen indicators were selected across soil, crop, and amendment aspects, categorized into three groups based on evaluation criteria.

Main Results:

• A comprehensive evaluation system with 16 indicators was established.
• Indicators were classified based on national standards, farmland management, and dynamic changes.
• Three response models were used to calculate comprehensive scores, leading to a five-level classification of remediation effects (excellent to very poor).

Conclusions:

• The developed evaluation system offers a scientific basis for assessing farmland soil remediation.
• This framework supports informed decision-making for pollution control and sustainable agricultural practices.
• The study provides valuable insights for improving the effectiveness and reliability of soil remediation evaluations.