| 基于Meta分析的西南地区Cd污染耕地安全利用技术效应与推广应用 |
| 摘要点击 223 全文点击 8 投稿时间：2025-02-18 修订日期：2025-06-03 |
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| 中文关键词 西南地区 Cd污染 土壤改良剂 叶面阻控剂 Meta分析 |
| 英文关键词 Southwest China Cd contamination soil amendments foliar inhibitors Meta-analysis |
| DOI 10.13227/j.hjkx.202502125 |
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| 中文摘要 |
| 为系统评估西南地区不同类型土壤改良剂与叶面阻控剂的施用效应，探析安全利用技术在推广应用过程中存在的问题，筛选了89篇有效文献，提取1 685组配对观察数据，运用Meta分析方法定量评价了不同安全利用技术产品对土壤pH值和有效镉含量、农作物可食用部分镉含量和产量的作用效果. 结果表明，西南地区广泛存在土壤Cd污染现象，土壤重金属污染程度大小排序为：Cd>Cr>Hg>Ni>Zn>Cu>Pb>As；不同类型土壤改良剂和叶面阻控剂施用效果存在显著差异，复合类土壤改良剂综合性能要优于单独施用的改良剂，最佳组合模式为无机类+炭基类. 金属元素型叶面阻控剂在增加产量（10.87%）和降低农作物可食用部分隔含量（-46.41%）方面效果最佳，锌锰肥和铁肥表现尤为突出. 安全利用技术推广应用受到经济效益、成本投资和技术风险认知等人为因素和环境因素的影响，低积累品种技术现阶段接受程度最高. 研究结果可为西南地区Cd污染耕地修复治理产品筛选及推广应用提供有益参考. |
| 英文摘要 |
| To systematically evaluate the effectiveness of various soil amendments and foliar inhibitors in Southwest China and to identify challenges in the implementation of safe utilization technologies， this study conducted a comprehensive Meta-analysis based on 89 selected publications， yielding 1 685 paired observational datasets. The analysis quantitatively assessed the impacts of different safe utilization technologies on key parameters， including soil pH， available cadmium （Cd） content， Cd accumulation in crop edible parts， and crop yield. The results revealed widespread Cd contamination in agricultural soils across Southwest China， with the regional heavy metal pollution gradient ranked as Cd>Cr>Hg>Ni>Zn>Cu>Pb>As. Significant variations were observed in the efficacy of different soil amendments and foliar inhibitors. Composite soil amendments demonstrated superior performance compared to single-component amendments， with the inorganic + carbon-based combination emerging as the most effective formulation. Among foliar inhibitors， metal element-based formulations， particularly zinc-manganese fertilizers and iron fertilizers， exhibited the highest efficacy， achieving a 10.87% increase in crop yield and a 46.41% reduction in Cd accumulation in edible parts. Further analysis identified critical factors influencing the adoption of safe utilization technologies， including socioeconomic considerations （cost-benefit ratios， investment requirements） and risk perception among stakeholders. Notably， low-cumulative crop variety technology currently exhibits the highest acceptance rate among end-users due to its practicality and economic viability. These findings provide valuable insights for policymakers and agricultural practitioners in selecting and implementing targeted remediation strategies for Cd-contaminated farmland. |
