Macro-and/or microplastics as an emerging threat effect crop growth and soil health

文献类型： 外文期刊

第一作者： Gao, Haihe

作者： Gao, Haihe;Liu, Qin;Yan, Changrong;Gong, Daozhi;He, Jiuxing;Mei, Xurong;Gao, Haihe;Liu, Qin;Yan, Changrong;He, Jiuxing;Mancl, Karen

作者机构：

关键词： Macro-and microplastics; Meta-analysis; Random forest analysis; Crop growth; Soil health

期刊名称：RESOURCES CONSERVATION AND RECYCLING （ 影响因子：13.716； 五年影响因子：13.543 ）

ISSN： 0921-3449

年卷期： 2022 年 186 卷

页码：

收录情况： SCI

摘要： Pollution caused by macro-and microplastics has become a global concern that is ubiquitous throughout the environment. The reported impacts of macro-and/or microplastics in soil were mixed without uniform conclu-sions. Here, we quantitatively analyzed the effects of macro-and microplastics on crop growth and soil health using a global meta-analysis, based on 2,226 paired field/ laboratory measurements from 141 papers published in the literature. The results show that the unabated accumulation of macro-and/or microplastics negatively impacts crop growth and soil health. Overall, there were no significant effects on crop-soil properties of mac-roplastics between 30 and 240 kg/ha excluding soil water infiltration rate, but the crop-soil properties were negatively impacted with time and macroplastics over 240 kg/ha excluding soil olsen-potassium. There were no significant effect on crop-soil animal properties of microplastics between 0.01 and 100 mg/kg excluding weight, but the crop-soil animal properties impacts were negative with time and microplastics over 10,000 mg/kg excluding plant chlorophyll. Using a random forest model (RF) trained with crop/ animal and macro-and/or microplastics factors, we found that the response of crop growth and soil health to macro-and/or micro -plastics was related to plastic content, plastic type, plastic size and crop/ animal type variables. Altogether, our findings of macro-and microplastics impacts on crop growth and soil health are crucial to policy-making related to agricultural sustainable development under global change.

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