In-situ monitoring of soil water characteristics using plant microbial fuel cell: Implications on slope stability analyses

IF 3.9 2区环境科学与生态学 Q1 ECOLOGY

Ecological Engineering Pub Date : 2025-03-24 DOI:10.1016/j.ecoleng.2025.107608

Liye Li , Boneng Chen , Weiling Cai , Ankit Garg

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引用次数: 0

Abstract

Plant microbial fuel cell (PMFC) is a promising technology that could be applied in green infrastructures such as green roofs for bioelectricity generation. While previous research has explored the influence of soil water characteristics on PMFCs in laboratory settings, this investigation extends to understanding natural ambient environmental conditions. A series of PMFCs was deployed for three months to examine bioelectricity generation, soil water characteristics, and ambient environmental conditions, employing three vegetation types, providing an intricate understanding of the coupled bio-hydrological behaviors in the field. PMFC performance was further enhanced by heightened solar radiation and precipitation, amplifying bio-electrical output. However, a 72 %–89 % decline in electrical current and potential occurred at the air entry value due to disrupted ion transport which caused increased soil electrical resistance. This phenomenon underscores the intricate balance between ambient conditions and PMFC performance, laying a foundation for optimizing PMFCs for specific ecological and hydrological contexts. These findings emphasize the potential of PMFCs in real-time, in-situ reflecting of hydrological soil characteristics, offering an innovative approach to ecosystem management and hazard mitigation efforts.

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利用植物微生物燃料电池原位监测土壤水分特征：对边坡稳定性分析的影响

植物微生物燃料电池（PMFC）是一种很有前途的技术，可以应用于生物发电的绿色屋顶等绿色基础设施。虽然以前的研究已经在实验室环境中探索了土壤水分特征对pmfc的影响，但本研究扩展到了解自然环境条件。在三个月的时间里，研究人员部署了一系列pmfc来研究生物发电、土壤水分特征和环境条件，采用了三种植被类型，提供了对野外耦合生物水文行为的复杂理解。增强的太阳辐射和降水进一步增强了PMFC的性能，放大了生物电输出。然而，由于离子传输中断，导致土壤电阻增加，在空气进入值处电流和电位下降了72% - 89%。这一现象强调了环境条件与PMFC性能之间的复杂平衡，为优化特定生态和水文环境下的PMFC奠定了基础。这些发现强调了pmfc在实时、现场反映水文土壤特征方面的潜力，为生态系统管理和减灾工作提供了一种创新方法。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Ecological Engineering 环境科学-工程：环境

CiteScore

8.00

自引率

5.30%

发文量

293

审稿时长

57 days

期刊介绍： Ecological engineering has been defined as the design of ecosystems for the mutual benefit of humans and nature. The journal is meant for ecologists who, because of their research interests or occupation, are involved in designing, monitoring, or restoring ecosystems, and can serve as a bridge between ecologists and engineers. Specific topics covered in the journal include: habitat reconstruction; ecotechnology; synthetic ecology; bioengineering; restoration ecology; ecology conservation; ecosystem rehabilitation; stream and river restoration; reclamation ecology; non-renewable resource conservation. Descriptions of specific applications of ecological engineering are acceptable only when situated within context of adding novelty to current research and emphasizing ecosystem restoration. We do not accept purely descriptive reports on ecosystem structures (such as vegetation surveys), purely physical assessment of materials that can be used for ecological restoration, small-model studies carried out in the laboratory or greenhouse with artificial (waste)water or crop studies, or case studies on conventional wastewater treatment and eutrophication that do not offer an ecosystem restoration approach within the paper.