种植方式对Cd污染土壤-植物系统修复效果的影响研究进展
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贵州省科技计划项目(黔科合支撑[2021]一般491)


Progress of research on the influence of planting method on the remediation effect of Cd-contaminated soil-plant system
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Guizhou Science and Technology Plan Project (Guizhou Science Support [2021] General 491)

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    摘要:

    为探索能有效修复土壤镉(Cd)污染、显著降低土壤Cd含量的种植方式,通过中国知网搜集和整理相关文献资料,系统研究了近年来不同种植方式对不同地区、不同土层土壤Cd的含量、形态、生物有效性及修复效率和植物Cd含量、富集转运Cd的影响,并对有关机制及其对生物有效性的影响进行简要分析。结果表明,不同种植方式下土壤Cd含量、植物Cd含量、修复效率存在显著差异,不同种植方式对不同地区的土壤修复效率有着不同的区域适用性;不同种植方式不同土层土壤Cd赋存形态含量存在显著差异,单作和间作条件下,土壤可交换态、可还原态、可氧化态和残渣态Cd含量显著高于轮作和连作。研究综述了不同种植方式对土壤-植物系统重金属Cd污染修复的影响,对于深入理解种植方式在土壤重金属污染修复中的作用具有重要意义。未来应进一步加强对不同土壤及植物类型,在不同种植方式下土壤-植物系统中Cd含量和形态变化规律的深入研究,以验证和补充现有结论。

    Abstract:

    This paper systematically investigated the impact of various planting methods on soil Cd levels,forms,bioavailability,and remediation efficiency,as well as plant Cd content,enrichment,and transfer across different regions and soil strata. The aim was to identify planting techniques capable of effectively mitigating soil cadmium (Cd) contamination and substantially lowering soil Cd levels. This was achieved by gathering and synthesizing relevant data and literature from the China National Knowledge Network. The relevant mechanisms and their effects on bioavailability were briefly examined. The findings revealed substantial variations in soil and plant Cd concentrations,along with restoration efficiency,across different planting strategies. Additionally,they indicated that tailored planting strategies could enhance local soil restoration efficacy. The exchangeable,reducible,oxidizable,and residual Cd contents in the soil were significantly greater under single and intercropping conditions than they were under rotation and continuous cropping. This study investigated the effects of different planting tactics on the remediation of heavy metal Cd contamination in soil-plant systems in order to gain a better understanding of the role that planting techniques play in cleaning up heavy metal pollution in soil. Future research on Cd content and speciation within the soil-plant system across diverse plant and soil types,along with various planting practices,will be essential to corroborate and reinforce the present conclusions.

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杨赏赏,黎晓星,张珍明,周颖,张家春.种植方式对Cd污染土壤-植物系统修复效果的影响研究进展.生态学报,2025,45(8):3614~3625

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