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机器学习辅助评估影响中国历史土污染的关键气象和作物因素

Zheng Chen¹, Shuguang Dou², Cairong Zhao²

¹Department of Environmental Science, College of Environmental Science and Engineering, Tongji University, China.

Journal of hazardous materials

|December 22, 2023

概括

微塑料 (MPs) 和酸 (PAE) 造成的土壤污染与天气和作物类型有关. 寒冷的秋季推动了MP的产生,而蔬菜是PAE在农业土壤中释放的关键.

科学领域:

农业土壤科学土壤科学
环境化学环境化学
环境科学环境科学

背景情况:

退化土对农业土壤构成严重的污染风险.
现有的研究主要集中在环境影响上,忽视了作物特定的贡献.
了解作物因子相关性对于管理土污染至关重要.

研究的目的:

调查气象和作物因素与土污染之间的关系.
为了估计微塑料 (MP) 和酸 (PAE) 在中国 (1993-2012) 杂草降解中的数量.
在国家和区域一级确定土壤污染的主要驱动因素.

主要方法:

估计在中国高峰料使用期间的MP和PAE数量.
弹性网 (EN) 和随机森林 (RF) 模型的应用.
一个数据集的分析,包括气象,作物和估计的土壤污染数据.

主要成果:

在全国范围内,秋季寒冷对于MP生成至关重要,蔬菜对PAE释放至关重要.
在区域范围内,蔬菜,棉花和花生对PAE污染作出了重大贡献.
寒冷是MP生成的普遍因素;由于太阳辐射,干旱在南部地区发挥了更大的作用.

结论:

特定的作物类型显著影响区域微塑料污染水平.
寒冷和干旱等气象因素是土壤污染的主要驱动因素.
研究结果为制定可持续策略提供指导,以管理农业中土污染.

关键词:

农作物农作物农作物气象学天气学微塑料是一种微塑料.麻污染污染麻污染污染在PAE中,PAE是PAE.

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