高原湖泊微塑料的环境驱动因素和组装机制

IF 5.9 1区地球科学 Q1 ENGINEERING, CIVIL

Journal of Hydrology Pub Date : 2025-04-26 DOI:10.1016/j.jhydrol.2025.133388

Hengchen Li , Hongwei Lu , Sansan Feng , Yuxuan Xue , Xiaohan Zhang

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引用次数: 0

摘要

在高原湖泊中检测到微塑料的聚集，但微塑料在极端环境下的环境命运尚不清楚。本研究系统探讨了青藏高原湖泊中微塑料的命运、聚集过程及其驱动因素。结果表明，青藏高原湖泊微塑料丰度显著低于全球平均水平，微塑料的主要形态类型为纤维、碎片和薄膜。确定海拔4500 m为区分微塑料原生来源的临界边界。此外，微塑料的组装过程还受到周围环境因素的影响。盐度、风速、海拔、总氮、人类活动强度、降水和pH是影响微塑料丰度的关键环境因子。本研究强调了环境因子对高原湖泊微塑料聚集的影响。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Environmental drivers and assembly mechanisms of microplastics in plateau lakes

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Environmental drivers and assembly mechanisms of microplastics in plateau lakes

The aggregation of microplastics in plateau lakes was detected, but the environmental fate of microplastics under extreme environments remains unclear. This study systematically explored the fate, assembly process, and driving factors of microplastics in lakes on the Tibetan Plateau. The results revealed that the abundance of microplastics in lakes on the Tibetan Plateau was significantly lower than the global average, and the predominant morphological categories of microplastics were identified as fibers, fragments, and films. The altitude of 4500 m was determined as the critical boundary to distinguish the primary origins of microplastics. Besides, the assembly process of microplastics was influenced by surrounding environmental factors. Salinity, wind speed, altitude, total nitrogen, human activity intensity, precipitation, and pH were the key environmental factors affecting microplastic abundance. This study emphasized the influence of environmental factors on microplastic assembly in plateau lakes.

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来源期刊

Journal of Hydrology 地学-地球科学综合

CiteScore

11.00

自引率

12.50%

发文量

1309

审稿时长

7.5 months

期刊介绍： The Journal of Hydrology publishes original research papers and comprehensive reviews in all the subfields of the hydrological sciences including water based management and policy issues that impact on economics and society. These comprise, but are not limited to the physical, chemical, biogeochemical, stochastic and systems aspects of surface and groundwater hydrology, hydrometeorology and hydrogeology. Relevant topics incorporating the insights and methodologies of disciplines such as climatology, water resource systems, hydraulics, agrohydrology, geomorphology, soil science, instrumentation and remote sensing, civil and environmental engineering are included. Social science perspectives on hydrological problems such as resource and ecological economics, environmental sociology, psychology and behavioural science, management and policy analysis are also invited. Multi-and interdisciplinary analyses of hydrological problems are within scope. The science published in the Journal of Hydrology is relevant to catchment scales rather than exclusively to a local scale or site.