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可生物降解的塑料残留物对作物的生态风险比传统的塑料残留物更低吗? 一个元分析性比较

Feng Yuan¹, Teng Wang², Hongyu Chen³

¹School of Geographic and Oceanographic Sciences, Nanjing University, Nanjing 210023, China; Ministry of Education Key Laboratory for Coast and Island Development, Nanjing University, Nanjing 210023, China.

Journal of hazardous materials

|December 9, 2025

概括

可生物降解的塑料残留物 (BPRs) 可能比传统的塑料残留物 (CPRs) 对作物构成更大的生态风险. BPRs降低了作物生长和增加了根损伤,特别是在更高度下.

科学领域:

农业科学农业科学
环境科学环境科学
土壤科学土壤科学

背景情况:

可生物降解塑料在农业中越来越多地使用.
与传统塑料残留物 (CPR) 相比,可生物降解塑料残留物 (BPR) 的生态风险尚未得到充分理解.
关于BPR是否对作物造成的生态风险低于CPR存在不确定性.

研究的目的:

进行一项元分析,比较BPR和CPR对作物的生态风险.
确定BPR在农业环境中的环境影响是否低于CPR.
确定影响塑料残留对作物健康影响的因素.

主要方法:

从55项研究中对1530个对对比进行了元分析.
使用严格的对对比方法直接比较BPR和CPR.
分析了对各种作物参数的影响,包括生物质,根长,营养含量和氧化损害.

主要成果:

与CPR相比,BPR显著减少了芽生长生物量 (11.5%) 和根长度 (9.52%).
与CPR相比,BPR增加了根氧化损伤 (19.72%) 和降低了Cu含量 (20.58%) .
随着塑料度的增加,BPRs的有害影响加剧,并且在酸性,低土壤有机物质条件下更加明显.

结论:

目前的证据表明,BPR可能对农作物造成的生态风险与CPR相比相当或更大.
现有文献中的局限性,如短时间的暴露时间和初始塑料的使用,需要进一步的研究.
断定BPRs在农业中的生态安全性比CPRs更高的结论还为时过早.

关键词:

可生物降解的塑料.传统的塑料是什么农作物农作物农作物进行元分析分析.塑料残留物塑料残留物

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