Environmental Technology & Innovation最新文献_第10页

Field calibration of nitrogen-doped carbon-coated silicon carbide (NMC@SiC) passive air samplers to measure polar and non-polar semi-volatile organic compounds 现场校准氮掺杂碳涂层碳化硅（NMC@SiC）被动空气采样器，以测量极性和非极性半挥发性有机化合物

IF 7.1 2区环境科学与生态学 Q1 BIOTECHNOLOGY & APPLIED MICROBIOLOGY

Environmental Technology & Innovation

Pub Date : 2026-03-01 Epub Date: 2026-01-22 DOI: 10.1016/j.eti.2026.104761

Dani Khoury , Supansa Chimjarn , Olivier Delhomme , Maurice Millet

This study reports the first field calibration of nitrogen-doped carbon-coated silicon carbide (NMC@SiC) passive air samplers for measuring semi-volatile organic compounds (SVOCs) in the atmosphere of the Alsace region. The NMC@SiC samplers were deployed concurrently with conventional low-volume active samplers at a central urban site in Strasbourg, enabling direct comparison between passive and active sampling techniques. Sampling covered five two-week periods (2018–2019) plus extended three-to-four-week deployments (2019–2020). After exposure, target compounds adsorbed onto the sorbent were extracted using a two-step protocol involving accelerated solvent extraction followed by solid-phase extraction. Analytical quantification was performed via gas chromatography-mass spectrometry (GC-MS), gas chromatography-tandem mass spectrometry (GC-MS/MS), and liquid chromatography-tandem mass spectrometry (LC-MS/MS), ensuring robust compound-specific detection and quantification. NMC@SiC samplers effectively captured a broad spectrum of SVOCs, including PAHs, PCBs, organochlorine pesticides (OCPs), phenols, and organic acids. Mean sampling rates (R_s) ranged from 2.5 and 6.0 m³ day⁻¹, values comparable to or slightly exceeding those of established passive samplers. Importantly, NMC@SiC efficiently collected both highly semi-volatile and polar analytes (like phenols and carboxylic acids), underscoring its suitability for legacy and emerging pollutants. Its high surface area and polar coating facilitate uptake of both nonpolar and polar compounds, highlighting its promise as a robust tool for long-term SVOC air monitoring. This pioneering field deployment demonstrates NMC@SiC’s potential as a next-generation passive sampler for comprehensive air quality assessment.

本研究报告了用于测量阿尔萨斯地区大气中半挥发性有机化合物（SVOCs）的氮掺杂碳涂层碳化硅（NMC@SiC）被动空气采样器的首次现场校准。NMC@SiC采样器与传统的小容量主动采样器同时部署在斯特拉斯堡的一个中心城市站点，从而可以直接比较被动采样技术和主动采样技术。采样涵盖了五个为期两周的时间段（2018-2019）以及延长的三到四周的部署（2019-2020）。暴露后，目标化合物吸附到吸附剂上，采用两步方案，包括加速溶剂萃取，然后是固相萃取。通过气相色谱-质谱（GC-MS），气相色谱-串联质谱（GC-MS/MS）和液相色谱-串联质谱（LC-MS/MS）进行分析定量，确保稳健的化合物特异性检测和定量。NMC@SiC采样器有效捕获了广泛的SVOCs，包括多环芳烃、多氯联苯、有机氯农药（ocp）、酚类和有机酸。平均抽样率（Rs）范围从2.5到6.0 m³ 天（⁻¹），与已建立的被动抽样器相当或略高于这些值。重要的是，NMC@SiC有效地收集了高度半挥发性和极性分析物（如酚类和羧酸），强调了其对遗留和新出现的污染物的适用性。它的高表面积和极性涂层有利于非极性和极性化合物的吸收，突出了它作为长期SVOC空气监测的强大工具的前景。这一开创性的现场部署证明了NMC@SiC作为下一代被动采样器的潜力，可以进行全面的空气质量评估。

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引用次数: 0

Indoor particulate matter exposure and ocular damage: Toxicity mechanisms and mitigation strategies 室内颗粒物暴露与眼损伤：毒性机制和缓解策略

IF 7.1 2区环境科学与生态学 Q1 BIOTECHNOLOGY & APPLIED MICROBIOLOGY

Environmental Technology & Innovation

Pub Date : 2026-03-01 Epub Date: 2025-12-15 DOI: 10.1016/j.eti.2025.104707

Mei Xiong , Quanyong Yi , Longyi Liu , Yuxi Tang , Ji Yang , Hai Liu , Ping Xiang

Indoor particulate matter (PM) has emerged as a significant environmental risk factor for ocular health, yet the molecular mechanisms underlying PM-induced eye damage remain poorly understood. This review aims to synthesize current knowledge on the sources, molecular pathways, and mitigation strategies of indoor PM, with a focus on its ocular toxicity. Recent studies highlight that PM_2.5, due to its small size and high surface-to-volume ratio, penetrates ocular tissues, triggering oxidative stress, endoplasmic reticulum stress, and mitochondrial dysfunction. These processes are key drivers of chronic inflammation and cell death, contributing to conditions such as dry eye disease, glaucoma, and age-related macular degeneration. Notably, ferroptosis, an iron-dependent cell death pathway, has been identified as a critical mechanism in PM-induced retinal damage, offering novel therapeutic targets. Seasonal variations in PM composition further influence its cytotoxicity, with winter PM exhibiting heightened inflammatory potential. To mitigate these risks, a multi-faceted approach combining key pollutants identification, source reduction (e.g., clean energy adoption), engineering controls (e.g., air purifiers), and policy initiatives (e.g., China’s "Coal-to-Gas" program) has demonstrated efficacy in reducing PM-linked ocular disorders. This review underscores the need for interdisciplinary collaboration to translate mechanistic insights into practical interventions, ultimately safeguarding eye health in polluted environments.

室内颗粒物（PM）已成为眼部健康的重要环境风险因素，但PM引起的眼部损伤的分子机制尚不清楚。本综述旨在综合目前关于室内PM的来源、分子途径和缓解策略的知识，重点是其眼部毒性。最近的研究表明，PM2.5由于其体积小、表面积比高，可以穿透眼部组织，引发氧化应激、内质网应激和线粒体功能障碍。这些过程是慢性炎症和细胞死亡的关键驱动因素，导致干眼病、青光眼和年龄相关性黄斑变性等疾病。值得注意的是，铁下垂是一种铁依赖性细胞死亡途径，已被确定为pm诱导的视网膜损伤的关键机制，提供了新的治疗靶点。PM成分的季节性变化进一步影响其细胞毒性，冬季PM表现出更高的炎症潜力。为了减轻这些风险，我们采取了多方面的方法，将关键污染物识别、源头减少（如采用清洁能源）、工程控制（如空气净化器）和政策举措（如中国的“煤制气”计划）结合起来，在减少pm相关的眼部疾病方面已经证明了有效性。这篇综述强调了跨学科合作的必要性，将机制见解转化为实际干预措施，最终保护污染环境中的眼睛健康。

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引用次数: 0

Establishing genotypic-QMRA framework for protozoan health risk assessment in urban recreational waters 建立城市游憩水域原生动物健康风险评价的基因型- qmra框架

IF 7.1 2区环境科学与生态学 Q1 BIOTECHNOLOGY & APPLIED MICROBIOLOGY

Environmental Technology & Innovation

Pub Date : 2026-03-01 Epub Date: 2025-12-18 DOI: 10.1016/j.eti.2025.104712

Zixuan Zhang , Miaomiao Teng , Xiaoran Gong , Lihui Zhao , Yunxia Li , Hongbo Ma , Fuwei Zhang

Cryptosporidium and Giardia are globally significant protozoan pathogens, frequently linked to recreational waterborne outbreaks. This study introduces a genotypic-Quantitative Microbial Risk Assessment (QMRA) framework to evaluate the occurrence, diversity, and health risks of Cryptosporidium and Giardia in urban recreational waters. A total of 104 water samples were collected from three exposure zones over two recreational seasons in 2024 and 2025. Cryptosporidium oocysts and Giardia cysts were detected in 84.6 % and 93.3 % of samples, respectively. Genotyping identified six Cryptosporidium species including C. parvum (10.6 %) and C. andersoni (14.4 %) and three Giardia assemblages, with assemblage A (12.5 %) being dominant. Risk model showed that the annual disease burden associated with recreational exposure exceeded the World Health Organization (WHO) threshold of 1.0 × 10⁻⁶ Disability-Adjusted Life Years (DALYs) per person per year. Boating and wading activities contributed the highest risks, with estimated burdens of 1.31 and 1.25 DALYs per million persons for Cryptosporidium, and 0.71 and 0.68 DALYs pppy (per person per year) for Giardia, respectively. Sensitivity analysis identified the fraction of exposed population and exposure frequency as the most influential parameters. Human fecal contamination, indicated by a moderate correlation between HF183 markers and protozoan concentrations (r = 0.34 for Giardia), was identified as the main source of contamination. This Genotypic-QMRA approach provides a novel and scalable tool for pathogen surveillance and health risk management in urban aquatic environments.

隐孢子虫和贾第鞭毛虫是全球重要的原生动物病原体，经常与娱乐性水传播疫情有关。本研究引入基因型-定量微生物风险评估（QMRA）框架，对城市游憩水域隐孢子虫和贾第鞭毛虫的发生、多样性和健康风险进行评估。在2024年和2025年的两个休闲季节，从三个暴露区共收集了104个水样。隐孢子虫卵囊阳性率为84.6% %，贾第鞭毛虫卵囊阳性率为93.3% %。基因分型鉴定出细小隐孢子虫（10.6% %）和安德氏隐孢子虫（14.4% %）等6种隐孢子虫和贾第鞭毛虫3个组合，其中A组合占主导地位（12. %）。风险模型显示，与娱乐暴露相关的年疾病负担超过了世界卫生组织（WHO）的阈值1.0 × 10⁻26每人每年的残疾调整生命年（DALYs）。划船和涉水活动的风险最高，隐孢子虫的估计负担为每百万人1.31和1.25 DALYs，贾第鞭毛虫的估计负担为每百万人0.71和0.68 DALYs（每人每年）。敏感性分析发现，暴露人群比例和暴露频率是影响最大的参数。人类粪便污染被确定为主要污染源，HF183标记物与原生动物浓度之间存在中度相关性（贾第鞭毛虫r = 0.34）。这种基因型- qmra方法为城市水生环境中的病原体监测和健康风险管理提供了一种新颖且可扩展的工具。

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引用次数: 0

Engineering interfacial charge transfer in a MIL-68(In)/In2S3 heterojunction for highly efficient visible-light-driven Cr(VI) reduction MIL-68(in)/In2S3异质结中用于高效可见光驱动Cr（VI）还原的工程界面电荷转移

IF 7.1 2区环境科学与生态学 Q1 BIOTECHNOLOGY & APPLIED MICROBIOLOGY

Environmental Technology & Innovation

Pub Date : 2026-03-01 Epub Date: 2026-01-26 DOI: 10.1016/j.eti.2026.104767

Xiaobin Zhou , Xin Wang , Mei Wang , Chenyu Zhou , Yinming Fan , Yinian Zhu , Shengpeng Mo , Yanan Zhang , Lihao Zhang , Yijian Zhong , Zongqiang Zhu

Photocatalytic reduction represents a promising strategy for remediating toxic hexavalent chromium (Cr(VI)) pollution. MIL-68(In), a typical In-based metal-organic framework, is a potential photocatalyst for this purpose. However, its efficiency is often hampered by the rapid recombination of photogenerated charge carriers and a narrow visible-light response. To address these limitations, we fabricated a MIL-68(In)/In₂S₃ n-n heterojunction by controllably growing In₂S₃ on the MOF substrate, aiming to achieve highly efficient Cr(VI) reduction. Under optimized reaction conditions (pH = 4, temperature 25 °C, catalyst dosage 0.2 g·L⁻¹, initial Cr(VI) concentration 20 mg·L⁻¹), the optimized MIL-68(In)/In₂S₃ composite achieved a Cr(VI) reduction efficiency of 94.44 % within 30 min of visible light irradiation, significantly outperforming its individual components while exhibiting excellent stability and recyclability. A series of photoelectrochemical and radical trapping experiments were conducted to reveal the enhanced mechanism of photocatalytic Cr(VI) reduction. The formed heterojunction interface broadened visible-light absorption and exhibited excellent interfacial charge transfer capability and, driven by a built-in electric field, facilitated the spatial separation of charge carriers. Consequently, photogenerated electrons migrated from MIL-68(In) and accumulate on In₂S₃, directly reducing Cr(VI) to Cr(III). Simultaneously, some electrons participated in the generation of superoxide radicals (•O₂^-), which synergistically contributed to the reduction process. This work provided an effective heterojunction photocatalyst for Cr(VI) wastewater treatment and offered valuable insights for the design of MOF-based photocatalytic systems.

光催化还原是修复有毒六价铬（Cr(VI)）污染的一种很有前途的策略。MIL-68（In）是一种典型的In基金属有机骨架，是一种潜在的光催化剂。然而，它的效率经常受到光产生的载流子的快速重组和狭窄的可见光响应的阻碍。为了解决这些限制，我们通过在MOF衬底上可控地生长In2S3来制备MIL-68(In)/In2S3 n-n异质结，旨在实现高效的Cr（VI）还原。在优化的反应条件（pH = 4，温度25℃，催化剂用量0.2 g·L−1，初始Cr（VI）浓度20 mg·L−1）下，MIL-68(In)/In2S3复合材料在30 min的可见光照射下，Cr（VI）还原效率为94.44 %，显著优于其单个组分，且具有良好的稳定性和可回收性。通过一系列的光电化学和自由基捕获实验，揭示了光催化Cr（VI）还原的增强机理。形成的异质结界面扩大了可见光吸收，表现出优异的界面电荷转移能力，并在内置电场的驱动下促进了载流子的空间分离。因此，光生电子从MIL-68（In）迁移到In2S3上，直接将Cr（VI）还原为Cr（III）。同时，一些电子参与了超氧自由基（•O2-）的生成，协同促进了还原过程。本研究为Cr（VI）废水处理提供了一种有效的异质结光催化剂，并为mof光催化体系的设计提供了有价值的见解。

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引用次数: 0

Unravelling the mechanism of phytoremediation to Pb and Cd in Euonymus japonicus Thunb. using biophysiological, transcriptomic and metabolomic analyses 日本卫矛植物对Pb和Cd的修复机制研究。使用生物生理学，转录组学和代谢组学分析

IF 7.1 2区环境科学与生态学 Q1 BIOTECHNOLOGY & APPLIED MICROBIOLOGY

Environmental Technology & Innovation

Pub Date : 2026-03-01 Epub Date: 2026-01-06 DOI: 10.1016/j.eti.2025.104737

Haolang Liu , Yongwei Gong , Yuqi Qi , Yu Wang

Urban heavy metals (HMs) contamination necessitates sustainable eco-remediation for ecological-health security. Urban green plants are overlooked sinks for HMs, yet their molecular remediation mechanisms remain elusive. Here, we elucidate the physiological and molecular responses of Euonymus japonicus Thunb. to lead (Pb) and cadmium (Cd). Results demonstrate that E. japonicus Thunb. exhibits high tolerance to Pb and Cd (tolerance index > 60), with predominant sequestration of these metals in root tissues (580.0 mg·kg⁻¹ and 83.1 mg·kg⁻¹, respectively, under high concentrations of HMs), inducing ultrastructural alterations. Detoxification under severe stress is mediated by catalase and peroxidase, rather than superoxide dismutase or glutathione. Transcriptomic analysis revealed upregulation of 15 core genes associated with detoxification, including ABCG4, ZnT2, and Nramp3. Metabolomic analysis revealed that root cells remodeled their metabolic regulation, including the following three aspects: (I.) amino acids and peptides (such as glycyl-phenylalanine, glutamyltyrosine, and betonicine); (II.) flavonoids (including catechin, myricetin, and persiconin); and (III.) lignan glycosides (such as occidentoside and ramontoside), thereby orchestrating stress adaptation. Multiomics analysis indicates that protein synthesis, processing, and regulation, involving amino acids, ribosomes, and the endoplasmic reticulum, along with the reprogramming of the sugar co-metabolism network and plant adaptation and stress regulation, collectively contribute to the detoxification process under Pb and Cd stress. These findings indicate that E. japonicus Thunb. serves as a root-accumulating plant capable of stabilizing HMs in soils severely co-contaminated with Pb and Cd, highlighting its potential for sustainable phytostabilization in urban environments.

城市重金属污染需要可持续的生态修复来保障生态健康安全。城市绿色植物是被忽视的HMs汇，但其分子修复机制尚不明确。本文对日本卫矛的生理和分子反应进行了研究。铅（Pb）和镉（Cd）结果表明：黄芪；表现出对铅和镉的高耐受性（耐受性指数>； 60），这些金属主要在根组织中被吸收（在高浓度的HMs下，分别为580.0 mg·kg⁻¹和83.1 mg·kg⁻¹），引起超微结构的改变。严重应激下的解毒是由过氧化氢酶和过氧化物酶介导的，而不是超氧化物歧化酶或谷胱甘肽。转录组学分析显示15个与解毒相关的核心基因上调，包括ABCG4、ZnT2和Nramp3。代谢组学分析表明，根细胞的代谢调节发生了重塑，包括以下三个方面：(1)氨基酸和多肽（如甘酰苯丙氨酸、谷氨酰基酪氨酸和倍桃碱）；（II）黄酮类化合物（包括儿茶素、杨梅素和persiconin）；（III）木脂素苷（如西花楸苷和雷蒙花苷），从而协调应激适应。多组学分析表明，蛋白质的合成、加工和调控，包括氨基酸、核糖体和内质网，以及糖共代谢网络的重编程和植物适应和胁迫调节，共同参与了铅和镉胁迫下的解毒过程。这些结果表明，日本黄颡鱼属。作为一种根系积累植物，能够稳定铅镉严重共污染土壤中的土壤有机质，突出了其在城市环境中可持续植物稳定的潜力。

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引用次数: 0

Effect of freeze-thaw cycle on carbon fixation by soil microbes 冻融循环对土壤微生物固碳作用的影响

IF 7.1 2区环境科学与生态学 Q1 BIOTECHNOLOGY & APPLIED MICROBIOLOGY

Environmental Technology & Innovation

Pub Date : 2026-03-01 Epub Date: 2025-12-19 DOI: 10.1016/j.eti.2025.104713

Lian He , Yujuan Wen , Zhipeng Zhang , Xiaoming Song

The freeze-thaw cycle (FTC) is a common periodic process of soil change in middle and high latitudes and high altitudes. FTC can affect microbial functional genes, plant carbon input patterns and physicochemical protection mechanisms of soil organic carbon. FTC significantly affected soil carbon cycle and microbial carbon sequestration by changing soil porosity, temperature, water content and aggregate structure. However, current research lacks sufficient discussion on the long-term effects of FTC the functional mechanisms of microbial communities and soil carbon components, and the coupled effects of multiple environmental factors. This paper introduces the efficiency of the microbial carbon pump (MCP) and its related microbial indicators as key parameters into the analytical framework of the carbon cycle model. The review encompasses the following aspects: (1) the mechanisms of carbon fixation by soil microorganism; (2) response and changes in the composition and activity of soil microbial communities under freeze-thaw cyclic stress; (3) the influence of FTC on the carbon cycle under different soil depth conditions; (4) how FTC jointly affect soil carbon dynamics by regulating microbial carbon sequestration-related functional genes (involved in substrate utilization preference and carbon use efficiency) and their interactions with plant organic carbon input patterns. This review systematically integrates research findings on the effects of FTC on soil carbon pools and microbial carbon sequestration, clarifies core mechanisms and research gaps, and provides key support for theoretical refinement, ecological conservation, and carbon sink management in related fields, promoting interdisciplinary research integration.

冻融循环是中高纬度和高海拔地区土壤变化的一种常见的周期性过程。FTC可以影响微生物功能基因、植物碳输入模式和土壤有机碳的理化保护机制。FTC通过改变土壤孔隙度、温度、含水量和团聚体结构显著影响土壤碳循环和微生物固碳。然而，目前的研究缺乏对FTC的长期影响、微生物群落与土壤碳组分的作用机制以及多种环境因素的耦合效应的充分讨论。本文将微生物碳泵（MCP）效率及其相关微生物指标作为关键参数引入碳循环模型的分析框架。本文主要从以下几个方面进行了综述：(1)土壤微生物的固碳机制；(2)冻融循环胁迫下土壤微生物群落组成与活性的响应与变化；(3)不同土壤深度条件下FTC对碳循环的影响；(4) FTC如何通过调节微生物固碳相关功能基因（涉及底物利用偏好和碳利用效率）及其与植物有机碳输入模式的相互作用，共同影响土壤碳动态。本文系统整合了FTC对土壤碳库和微生物固碳影响的研究成果，明确了核心机制和研究空白，为相关领域的理论完善、生态保护和碳汇管理提供了关键支撑，促进了跨学科研究的整合。

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引用次数: 0

Competitive-cooperative microbial dynamics drive water quality regulation in industrial recirculating shrimp aquaculture 竞争-合作微生物动力学驱动工业循环虾养殖水质调节

IF 7.1 2区环境科学与生态学 Q1 BIOTECHNOLOGY & APPLIED MICROBIOLOGY

Environmental Technology & Innovation

Pub Date : 2026-03-01 Epub Date: 2025-12-31 DOI: 10.1016/j.eti.2025.104732

Shenqun An , Lianbo Zhang , Jinyu Du , Xiaoliang Ren , Zhong Zhuang , Biaobiao Jiang , Yafei Liu , Guang Yang

Carbon (C) and nitrogen (N) content in recirculating aquaculture systems (RAS) are considered key to maintaining water quality stability, primarily governed by feeding and microbial processes. However, the interaction between dynamic changes in C and N content and microbial community structure remains unclear, which limits technological innovation. This study aims to investigate the relationship between C and N dynamics and microbial community structure in L. vannamei aquaculture. The results demonstrated that microbial community structure was primarily shaped by C and N metabolic taxa. From early (25 d) to mid-culture (50 d), a decrease in N-removing genera (e.g., Ferruginibacter and Microbacterium) correlated with rising NO₃^--N (20.52–47.78 mg L⁻¹), while an increase in C-removing genera (e.g., Polynucleobacter and Jeongeupia) paralleled the decline in COD (222.50–191.50 mg L⁻¹), indicating competitive interaction between functional groups. In the late period (after 50 d), the community stabilized with high structural similarity to earlier period, suggesting functional convergence and coexistence after succession. This study elucidates the dynamic co-occurrence patterns between microbial functional groups throughout shrimp growth, offering novel insights for precise water quality management in recirculating aquaculture systems.

循环水养殖系统（RAS）中的碳(C)和氮(N)含量被认为是维持水质稳定的关键，主要受饲养和微生物过程的控制。然而，碳氮含量动态变化与微生物群落结构之间的相互作用尚不清楚，这限制了技术创新。本研究旨在探讨凡纳滨沼虾养殖中C、N动态与微生物群落结构的关系。结果表明，微生物群落结构主要由C和N代谢类群形成。从早期（25 d）到培养中期（50 d），除N菌（如铁杆菌和微细菌）的减少与NO3—N的上升（20.52-47.78 mg L−1）相关，而除c菌（如Polynucleobacter和Jeongeupia）的增加与COD的下降（222.50-191.50 mg L−1）相关，表明功能群之间存在竞争性相互作用。群落后期（50 d后）趋于稳定，与前期结构相似度较高，表明演替后功能趋同共存。本研究阐明了在对虾生长过程中微生物功能群之间的动态共生模式，为循环水养殖系统的精确水质管理提供了新的见解。

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引用次数: 0

In situ synthesis of superabsorbent polymer in soil: A dual-mechanism study on desiccation crack suppression and self-healing behavior 土壤中原位合成高吸水性聚合物：干裂抑制和自愈行为的双机制研究

IF 7.1 2区环境科学与生态学 Q1 BIOTECHNOLOGY & APPLIED MICROBIOLOGY

Environmental Technology & Innovation

Pub Date : 2026-03-01 Epub Date: 2026-01-05 DOI: 10.1016/j.eti.2026.104745

Senbiao Liu , Jianfeng Zhu , Yao Zheng , Yifan Zhang , Miao Li , Xichen Zhao , Xuelin Li

Soil desiccation cracking is ubiquitous in arid and semi-arid environments, and its evolution directly affects foundation stability and ecosystem functions. To improve the operability of superabsorbent polymer (SAP) incorporation and the crack-control performance, this study proposes a “liquid–solid mixing” in situ polymerization strategy, enabling SAP to form a three-dimensional network within the soil matrix, and systematically evaluates the effects of SAP content on water processes and crack evolution. The in situ generated SAP was characterized in terms of structure and morphology using Fourier transform infrared spectroscopy (FT-IR), scanning electron microscopy (SEM), and ultra-depth-of-field microscopic imaging (EDOF). Combined with laboratory drying tests and quantitative image analysis, the temporal variations in Water content decay, evaporation kinetics, Crack ratio, and crack geometric parameters were tracked. The results indicate that SAP can be successfully polymerized in situ within soil and can significantly slow water loss and suppress crack propagation. At a dosage of 12 %, compared with the blank sample (CK), the average Evaporation rate decreased by approximately 20.6 % and the total drying time increased by approximately 38.4 %; crack development was effectively controlled, with the final Crack ratio approaching 0 %. With increasing SAP dosage, Total crack length, Average crack width, and crack morphological complexity all decreased markedly. Under high-dosage conditions, crack openings exhibited a closure tendency during continued drying, suggesting a certain potential for crack self-healing. These findings demonstrate that the proposed in situ polymerization strategy not only expands a convenient route for SAP incorporation into geotechnical media, but also provides a feasible technical pathway and mechanistic basis for the coupled regulation of “water retention–crack suppression” in soils under drying conditions.

土壤干裂在干旱半干旱环境中普遍存在，其演变直接影响到地基稳定性和生态系统功能。为了提高高吸水性聚合物（SAP）掺入的可操作性和裂缝控制性能，本研究提出了一种“液固混合”原位聚合策略，使SAP在土壤基质内形成三维网络，并系统评价了SAP含量对水过程和裂缝演化的影响。利用傅里叶变换红外光谱（FT-IR）、扫描电子显微镜（SEM）和超景深显微成像（EDOF）对原位生成的SAP进行了结构和形态表征。结合室内干燥试验和定量图像分析，跟踪了含水率衰减、蒸发动力学、裂纹比和裂纹几何参数的时间变化。结果表明，SAP能够成功地在土壤中原位聚合，并能显著减缓水分流失和抑制裂缝扩展。在添加量为12 %时，与空白样品（CK）相比，平均蒸发速率降低了约20.6 %，总干燥时间增加了约38.4 %；裂纹发展得到有效控制，最终裂纹率接近0 %。随着SAP用量的增加，总裂缝长度、平均裂缝宽度和裂缝形态复杂度均显著降低。在高剂量条件下，裂纹开口在持续干燥过程中呈现闭合趋势，表明裂纹具有一定的自愈潜力。研究结果表明，本文提出的原位聚合策略不仅为SAP在岩土介质中的掺入开辟了一条便捷的途径，而且为干燥条件下土体“保水—抑裂”耦合调控提供了可行的技术途径和机理基础。

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引用次数: 0

Energy–carbon footprint synergy in a temperature-controlled cricket farming system integrating photovoltaic/thermal and heat pump technologies 集成光伏/热能和热泵技术的温控蟋蟀养殖系统中的能源-碳足迹协同作用

IF 7.1 2区环境科学与生态学 Q1 BIOTECHNOLOGY & APPLIED MICROBIOLOGY

Environmental Technology & Innovation

Pub Date : 2026-03-01 Epub Date: 2025-12-25 DOI: 10.1016/j.eti.2025.104724

Panuwit Puttaraksa , Tanongkiat Kiatsiriroat , Tanakorn Wongwuttanasatian , Thanyaluk Sundach , Chawaroj Jaisin , Sulaksana Mongkon , Sarawut Polvongsri

This study evaluated the energy and carbon footprints of a household-scale cricket farming system integrating a temperature control system. In the traditional system, container temperatures fluctuated with ambient conditions, limiting winter production to 4.50 cycles per year. In contrast, the hybrid photovoltaic/thermal and heat pump system, consisting of a 4.40 kW PVT unit integrated with a 10.80 kW_th heat pump, maintained stable container temperatures of 28–30 °C even when ambient temperatures dropped to 14.50 °C. This temperature stability enabled 5.50 annual cycles, representing a 37.33 % increase in yield compared with the traditional system. The new system achieved an energy footprint of 5.76 MJ/kg and a carbon footprint of 3.45 kgCO₂eq/kg, which were lower than those of the traditional system at 7.52 MJ/kg and 4.42 kgCO₂eq/kg, respectively. The economic assessment further demonstrated strong financial feasibility, with a payback period of 4.54 years, a net present value of 38,514.36 USD, and an internal rate of return of 21.56 %. These findings confirm that renewable-energy-assisted temperature control systems can enhance productivity, improve environmental performance, and offer economically attractive solutions for temperature-controlled cricket farming.

本研究评估了集成温度控制系统的家庭规模蟋蟀养殖系统的能源和碳足迹。在传统系统中，容器温度随环境条件而波动，将冬季产量限制在每年4.50个循环。相比之下，由4.40 kW PVT机组和10.80 kWth热泵组成的混合光伏/热热泵系统，即使环境温度降至14.50℃，也能保持28-30℃的稳定容器温度。这种温度稳定性可实现5.50个年循环，与传统系统相比，产量提高了37.33 %。新系统的能源足迹为5.76 MJ/kg，碳足迹为3.45 kgCO2eq/kg，分别低于传统系统的7.52 MJ/kg和4.42 kgCO2eq/kg。经济评估进一步证明了较强的财务可行性，投资回收期为4.54年，净现值为38514.36美元，内部收益率为21.56 %。这些发现证实，可再生能源辅助温度控制系统可以提高生产力，改善环境绩效，并为温度控制蟋蟀养殖提供经济上有吸引力的解决方案。

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引用次数: 0

Bridging hydroponic and soil studies: Subcellular partitioning and soil factors govern the uptake and accumulation of fluindapyr in rice 桥接水培和土壤研究：亚细胞分配和土壤因素控制水稻对氟霉啶的吸收和积累

IF 7.1 2区环境科学与生态学 Q1 BIOTECHNOLOGY & APPLIED MICROBIOLOGY

Environmental Technology & Innovation

Pub Date : 2026-03-01 Epub Date: 2025-12-30 DOI: 10.1016/j.eti.2025.104738

Hantao Yu , Ruiling Tang , Yaoming Zhang , Ying Zhang , Jiaxue Li , Xiaoxiang Fu , Qinghong Zhou , Xugen Shi , Ruqiang Cui , Wenwen Peng , Duantao Cao

Fluindapyr, a recently developed succinate dehydrogenase inhibitor, exhibits promising efficacy against rice sheath blight, yet its mechanisms of uptake and distribution within rice plants remain unclear. To address this knowledge gap, we investigated the uptake, translocation, and accumulation of fluindapyr in rice using integrated hydroponic and soil cultivation experiments. Results showed that fluindapyr was rapidly absorbed by rice roots but exhibited limited upward translocation (translocation factor, TF < 0.8). After foliar application, minimal downward movement was observed (TF < 0.3), reflecting poor systemic mobility. Root uptake occurred primarily via the symplastic pathway through aquaporin-facilitated passive diffusion. Subcellular distribution analysis revealed predominant accumulation in cell walls (57.2 %–72.3 %) and organelles (15.5 %–24.6 %), with strong adsorption to lipophilic components restricting transmembrane transport. In the soil–rice system, soil organic matter content was the primary factor governing fluindapyr uptake, and the in situ pore water concentration (C_IPW) proved to be a more reliable predictor of its accumulation in rice than the total soil concentration (C_soil). These findings elucidate the mechanisms governing fluindapyr behavior in rice and provide a theoretical basis for its rational application and environmental risk assessment.

氟茚达yr是新近开发的琥珀酸脱氢酶抑制剂，对水稻纹枯病具有良好的防治效果，但其在水稻植株中的吸收和分布机制尚不清楚。为了解决这一知识缺口，我们利用水培和土壤栽培综合试验研究了水稻对氟霉霉的吸收、转运和积累。结果表明，氟茚达韦被水稻根系快速吸收，但向上转运有限（转运因子，TF < 0.8）。叶面施用后，观察到最小的向下运动（TF < 0.3），反映了较差的系统流动性。根吸收主要通过水通道蛋白促进的被动扩散的共塑途径发生。亚细胞分布分析显示，主要积聚在细胞壁（57.2% % -72.3 %）和细胞器（15.5% % -24.6 %），对亲脂成分的强吸附限制了跨膜运输。在土壤-水稻系统中，土壤有机质含量是影响水稻吸收的主要因素，而原位孔隙水浓度（CIPW）比土壤总浓度（Csoil）更能可靠地预测水稻的水分积累。这些研究结果阐明了水稻流虫行为的调控机制，为其合理应用和环境风险评价提供了理论依据。

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引用次数: 0