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根据环境脆弱性理论研究土壤微塑料污染和影响因素

Xiuyuan Yang¹, Zhenming Zhang², Jiachun Zhang³

¹College of Resources and Environmental Engineering, Guizhou University, Guiyang 550025, Guizhou, China.

The Science of the total environment

|July 13, 2023

概括

在脆弱的地土壤中,微塑料 (MP) 的污染率很高,中度脆弱地区的风险最高. 土壤的特性显著影响了MP的分布,这表明脆弱的生态系统加剧了MP的污染.

科学领域:

环境科学环境科学
土壤科学土壤科学
生态毒理学生态毒理学

背景情况:

土壤微塑料 (MP) 污染是一个日益严重的全球环境问题.
了解MP分布和生态脆弱的地地区的影响因素至关重要,但有限.
地生态系统特别容易受到环境退化的影响.

研究的目的:

调查贵州脆弱的地地区的空间分布,特征和MP组成.
探索生态系统脆弱性和MP污染之间的关系.
为了澄清石土壤特性对MP丰度的影响,并量化它们的贡献.

主要方法:

在不同类型的地土壤中对MP的空间分布分析.
土壤MPs的表征和组成分析.
应用结构方程模型和强大的随机森林 (RF) 模型来评估土壤特性对MP的影响.
量化土壤特性对MP丰度的相对贡献.

主要成果:

在生态脆弱的地地区,土壤MP的丰度达到了2949个项目kg-1.
中等脆弱的地区域表现出PM污染的最高风险.
强大的射频模型准确地预测了MP的丰富性 (R2 = 0.93),土壤的化学特性显著影响了MP污染 (p < 0.05).

结论:

脆弱的生态环境可能会加剧石地区的微塑料污染.
土壤特性在确定MP分布和丰度方面发挥着重要作用.
这些发现为塑料利用和在岩生态系统中控制塑料污染提供了科学基础.

关键词:

脆弱的生态脆弱的生态卡斯特河 (Karst) 是一个卡斯特河.微塑料是一种微塑料.强大的随机森林.土壤土壤土壤.

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