Environmental Technology & Innovation最新文献_第4页

Coastal flood mitigation under dynamic shoreline change: Integrated modeling approach 动态海岸线变化下的沿海洪水缓解：综合建模方法

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.2025.104726

Anjar Dimara Sakti , Yusa Inderapermana , Akiyuki Kawasaki , Cokro Santoso , Hazel Yordan Komara , Eva Musyaerofah , Ikha Magdalena , Like Hana Fournida Purba , Fajar Yulianto , Wakhidatik Nurfaida , Pitri Rohayani , Ketut Wikantika

Coastal areas play a crucial role in supporting economic and social activities, especially in archipelagic countries like Indonesia. However, these regions are increasingly vulnerable to environmental threats, including rising sea levels and significant coastal erosion. This study focuses on Cirebon Regency, a coastal region experiencing dynamic shoreline changes and increasing risk of coastal flooding. The aim of this study is to model priority areas for coastal flood risk mitigation using a Random Forest based machine learning approach. The novelty of this research lies in its integrative framework, which combines multi decadal shoreline change analysis, sea level rise related indicators, and coastal flood vulnerability modelling to derive spatially explicit mitigation priorities at both grid and administrative levels. The results ndicate that the coastal flood risk model identifies the most vulnerable areas, particularly around river mouths and lowland areas, with a vulnerable area of 2296 ha. Additionally, priority areas for coastal flood mitigation were identified through the integration of shoreline dynamics with coastal flood potential models. The analysis revealed 809.7 ha of high-priority areas concentrated in coastal zone, particularly the sub-districts of Kapetakan, Gunung Jati, and Losari. In total, 34 villages were classified as having high to very high risk, requiring targeted mitigation strategies to reduce the impacts of erosion, accretion, and coastal flooding. This study provides an operational framework for policymakers to target limited resources toward the most critical coastal zones, supporting proactive, data driven strategies to minimize economic losses and environmental impacts in vulnerable coastal region.

沿海地区在支持经济和社会活动方面发挥着至关重要的作用，特别是在印度尼西亚这样的群岛国家。然而，这些地区越来越容易受到环境威胁，包括海平面上升和严重的海岸侵蚀。本研究的重点是碳摄政，这是一个经历动态海岸线变化和沿海洪水风险增加的沿海地区。本研究的目的是使用基于随机森林的机器学习方法对沿海洪水风险缓解的优先区域进行建模。本研究的新颖之处在于其综合框架，该框架结合了多年代际海岸线变化分析、海平面上升相关指标和沿海洪水脆弱性模型，从而在网格和行政层面上得出空间上明确的减灾优先事项。结果表明，沿海洪水风险模型识别出最脆弱的区域，特别是河口和低地地区，脆弱区域为2296 ha。此外，通过将海岸线动力学与沿海洪水潜力模型相结合，确定了沿海洪水缓解的优先区域。分析显示，809.7公顷的高优先区域集中在沿海地区，特别是Kapetakan、Gunung Jati和Losari的分区。总共有34个村庄被列为高风险至极高风险，需要有针对性的缓解战略，以减少侵蚀、增生和沿海洪水的影响。本研究为政策制定者提供了一个操作框架，以将有限的资源用于最关键的沿海地区，支持积极的、数据驱动的战略，以最大限度地减少脆弱沿海地区的经济损失和环境影响。

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引用次数: 0

The impacts of different nitrogen forms on fungal weathering of carbonate and insoluble phosphate in the karst red soil 不同氮形态对喀斯特红壤碳酸盐和不溶性磷酸盐真菌风化的影响

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: 2025-12-22 DOI: 10.1016/j.eti.2025.104719

Ying Ma , Yue Liu , Dechao Wang , Baoxin Feng , Shuo Zhang , Liangliang Zhang , Qiang Guan , Zhen Li , Xinxin Ye , Da Tian

Karst soils contain abundant carbonates but commonly exhibit phosphorus (P) deficiency. Fungal weathering plays a central role in P and carbon (C) cycling in these soils. However, this process is often shaped by environmental factors such as soil pH, minerals composition, and nitrate or C availability. This study investigated how different nitrogen (N) forms (nitrate, ammonium, and urea) influence fungal weathering of phosphate and carbonate in karst soil. Ammonium and urea were more effective than nitrate in promoting fungal carbonate weathering, significantly enhancing the conversion of carbonate to calcium oxalate in karst soil. Meanwhile, Ammonium additions significantly increased available P concentrations from 3.9 to 9.3 mg/kg after 8 weeks of incubation. In contrast, nitrate is more suitable than ammonium and urea for fungal growth and hyphal development. The formed fungal hyphae facilitated the biomechanical weathering of carbonate. According to the loss mass ratio at 450–900 °C, the theoretical fungal carbonate weathering rate driven by ammonium was 93 % higher than that without N input. This research clarifies how different N shapes carbonate fungal weathering in karst soil and highlights links between P and C utilization that may help enhance P availability in karst regions.

喀斯特土壤含有丰富的碳酸盐，但普遍表现为缺磷。真菌风化在这些土壤中的磷和碳(C)循环中起着核心作用。然而，这一过程往往受到环境因素的影响，如土壤pH值、矿物质组成、硝酸盐或碳的有效性。本研究考察了不同形态的氮（硝态氮、铵态氮和尿素）对喀斯特土壤中磷酸盐和碳酸盐真菌风化的影响。铵和尿素对真菌碳酸盐风化的促进作用强于硝酸盐，显著促进了喀斯特土壤中碳酸盐向草酸钙的转化。同时，铵的添加显著提高了8周后有效磷浓度，从3.9 ~ 9.3 mg/kg。相反，硝酸盐比铵和尿素更适合真菌生长和菌丝发育。真菌菌丝的形成促进了碳酸盐的生物力学风化。根据450 ~ 900 °C时的损失质量比，在铵的驱动下，碳酸盐真菌的理论风化速率比没有N输入时提高了93 %。本研究阐明了不同氮对喀斯特土壤碳酸盐真菌风化的影响，并强调了磷和碳利用之间的联系，这可能有助于提高喀斯特地区磷的有效性。

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引用次数: 0

YTHDC1-mediated m6A modification of PDK1 contributes to the epithelial-mesenchymal transition in smoking-induced COPD airway remodeling through lactate-induced MTA2 K539 lactylation ythdc1介导的m6A修饰PDK1通过乳酸诱导的MTA2 K539乳酸化参与吸烟诱导的COPD气道重塑的上皮-间质转化

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.2025.104715

Yifan Li , Qiaoqiao Zhou , Jiaheng Lin , Ying Zhu , Lingjia Yang , Hongjing Gong , Shunxin Yang , Tao Bian , Qizhan Liu , Haibo Xia , Yan Wu

Cigarette smoke (CS) is the main risk factor for chronic obstructive pulmonary disease (COPD), which is characterized by airway remodeling, a process that is associated with the epithelial-mesenchymal transition (EMT). Evidence for the involvement of N6-methyladenosine (m6A) modifications in the progression of COPD has emerged. However, the role of YTHDC1, an m6A reader, in airway remodeling remains elusive. Herein, we demonstrated that YTHDC1 drives the EMT through PDK1-mediated glycolytic reprogramming, resulting in airway remodeling in lungs of COPD animals. Mechanistically, in the airway epithelium, YTHDC1 recognizes and enhances the stability of PDK1 mRNA in an m6A-dependent manner. Elevated protein levels of PDK1 promote glycolytic reprogramming and lactate production. Additionally, lactate-induced lactylation of MTA2 enhances its protein stability, thereby contributing to the EMT. Moreover, we demonstrated, with an experimental model of COPD, that targeting of YTHDC1 attenuated the cigarette smoke-induced EMT of airway epithelium cells, which diminished airway remodeling in the lungs of COPD mice. For COPD patients, elevated levels of PDK1 and MTA2 were associated with elevated levels of YTHDC1. Overall, the present study revealed a mechanism for YTHDC1-mediated glycolysis reprogramming in the pathogenesis of airway remodeling and indicated that YTHDC1 could serve as a therapeutic target for COPD.

香烟烟雾（CS）是慢性阻塞性肺疾病（COPD）的主要危险因素，其特征是气道重塑，这一过程与上皮-间质转化（EMT）相关。n6 -甲基腺苷（m6A）修饰参与COPD进展的证据已经出现。然而，m6A读卡器YTHDC1在气道重塑中的作用尚不明确。在此，我们证明YTHDC1通过pdk1介导的糖酵解重编程驱动EMT，导致COPD动物肺部气道重塑。在机制上，在气道上皮中，YTHDC1以m6a依赖的方式识别并增强PDK1 mRNA的稳定性。PDK1蛋白水平升高促进糖酵解重编程和乳酸生成。此外，乳酸诱导的MTA2的乳酸化增强了其蛋白质的稳定性，从而促进了EMT。此外，我们通过COPD的实验模型证明，靶向YTHDC1可以减弱香烟烟雾诱导的气道上皮细胞的EMT，从而减少COPD小鼠肺部的气道重塑。对于COPD患者，PDK1和MTA2水平升高与YTHDC1水平升高相关。总之，本研究揭示了YTHDC1介导的糖酵解重编程在气道重塑发病机制中的作用，并提示YTHDC1可作为COPD的治疗靶点。

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引用次数: 0

The combined effects of household solid fuel use and hypertension on the risk of stroke 家庭固体燃料使用和高血压对中风风险的综合影响

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: 2025-12-31 DOI: 10.1016/j.eti.2025.104733

Jiahui Liu , Yu Liu , Ke Du , Xinqi Wang , Hankun Xie , Xiaolei Wang , Haifeng Xu , Chong Shen

Background

Hypertension and household air pollution are both attributable risk factors for stroke. The study explored their joint effects in a prospective cohort.

Methods

A total of 17096 adults were included in Jurong cohort. Weighted Cox regression models were used to assess the stroke risk. Crossover analysis was used to evaluate the combined effects. The population attributable fraction (PAF) was calculated to evaluate stroke risk attributable to solid fuel use.

Results

After followed up 8.66 (5.53,8.70) years, 1104 stroke cases occurred. Solid fuel use was associated with an increased risk 55.6 % of stroke, whereas, the association was attenuated after adjustment (HR=1.077, 95 % CI: 0.929–1.249). Among those taking no antihypertensives and normotensive individuals, the associated effect still exists (HR=1.284, 95 % CI: 1.041–1.583, HR=1.551, 95 % CI: 1.130–2.129). Moreover, compared with clean fuel users with normotension, clean fuel users with hypertension, solid fuel users with normotension, and solid fuel users with hypertension had increased risks of stroke after excluding those taking antihypertensives with HRs (95 %CI) of 1.181 (0.948–1.472), 1.463 (1.108–1.933), and 1.395 (1.061–1.835), respectively. Heterogeneity was observed between the hypertensive individuals without antihypertensive and normotensive populations (I²=0.588). In addition, solid fuel contributed a higher PAF to stroke among individuals without hypertension (PAF=0.144, 95 %CI=0.051–0.239). The PAF changed after excluding the individuals with antihypertensive treatment, although did not reach statistical significance.

Conclusion

This study highlights the impact of solid fuel use on stroke among the population without hypertension, especially in prehypertension, emphasizing the necessity to reduce solid fuel use for stroke prevention.

背景：高血压和室内空气污染都是导致中风的危险因素。该研究在一个前瞻性队列中探讨了它们的联合效应。方法Jurong队列共纳入17096名成人。采用加权Cox回归模型评估卒中风险。采用交叉分析评价综合效果。计算人口归因分数（PAF）来评估使用固体燃料导致的中风风险。结果随访8.66（5.53,8.70）年，发生脑卒中1104例。固体燃料使用与卒中风险增加55.6% %相关，而调整后相关性减弱（HR=1.077, 95 % CI: 0.929-1.249）。在未服用降压药和血压正常者中，相关效应仍然存在（HR=1.284, 95 % CI: 1.041 ~ 1.583， HR=1.551, 95 % CI: 1.130 ~ 2.129）。此外，与血压正常的清洁燃料使用者相比，高血压的清洁燃料使用者、血压正常的固体燃料使用者和高血压的固体燃料使用者在排除HRs（95 %CI）分别为1.181（0.948-1.472）、1.463（1.108-1.933）和1.395（1.061-1.835）的降压药后卒中风险增加。未抗高血压的高血压个体与正常高血压人群之间存在异质性（I2=0.588）。此外，固体燃料对无高血压个体中风的PAF有较高的贡献（PAF=0.144, 95 %CI= 0.051-0.239）。排除抗高血压治疗组后PAF发生变化，但无统计学意义。结论本研究强调了固体燃料使用对无高血压人群，尤其是高血压前期人群脑卒中的影响，强调了减少固体燃料使用预防脑卒中的必要性。

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引用次数: 0

Regional variability in soil organic carbon responses to chemical fertilizer and manure slurry driven by microbial functional pathways 微生物功能途径驱动下土壤有机碳对化肥和粪肥浆响应的区域变异

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: 2026-01-07 DOI: 10.1016/j.eti.2026.104750

Xingping Chang , Xiaofei Wang , Huiying Du , Hao Wang , Keqiang Zhang , Lianzhu Du

Soil organic carbon (SOC) dynamics are profoundly influenced by fertilization regimes and regional environmental conditions. In this study, we compared the impacts of chemical fertilizer and manure slurry application on SOC content and microbial functional gene composition across three geographically distinct regions in China: Harbin, Yiyang, and Nanyang. Our results revealed contrasting SOC responses among regions. Manure slurry application significantly enhanced SOC in Harbin, resulting in a 54 % increase compared with chemical fertilizer, mainly due to a pronounced accumulation of particulate organic carbon (POC). In contrast, SOC responses to manure slurry were minor in Yiyang and Nanyang, indicating that fertilization effects on SOC were strongly site-dependent. Metagenomic analyses showed that manure slurry increased the abundance of carbon fixation genes in Harbin, particularly those involved in the reductive pentose phosphate cycle and reductive tricarboxylic acid cycle, which increased by 9.57 % and 6.38 %, respectively. In contrast, manure slurry in Yiyang primarily enhanced genes involved in labile carbon degradation. Integrating soil properties, microbial functional genes, and enzyme activities revealed that fertilization affected SOC mainly through indirect pathways mediated by soil nutrient conditions and microbial functional traits. Changes in soil nutrients were closely associated with shifts in microbial carbon fixation and degradation gene abundances, which were more strongly linked to SOC and POC than to mineral-associated organic carbon. Overall, our findings indicate that the effectiveness of manure slurry versus chemical fertilizer in promoting SOC sequestration is not universal but strongly context-dependent, emphasizing the need for site-specific strategies in sustainable soil carbon management.

土壤有机碳动态受施肥制度和区域环境条件的深刻影响。在本研究中，我们比较了施用化肥和粪肥对中国哈尔滨、益阳和南阳3个不同地理区域土壤有机碳含量和微生物功能基因组成的影响。我们的研究结果揭示了不同地区SOC响应的差异。施用粪肥浆显著提高了哈尔滨市土壤有机碳含量，与化肥相比增加了54. %，这主要是由于颗粒有机碳（POC）的显著积累。益阳和南阳土壤有机碳对粪肥浆的响应较小，表明施肥对土壤有机碳的影响具有强烈的地点依赖性。宏基因组分析表明，肥浆处理增加了哈尔滨油菜固定碳基因的丰度，特别是与还原性戊糖磷酸循环和还原性三羧酸循环相关的基因丰度，分别增加了9.57 %和6.38 %。相比之下，益阳粪肥浆主要增强了参与不稳定碳降解的基因。综合土壤性质、微生物功能基因和酶活性，发现施肥主要通过土壤养分条件和微生物功能性状介导的间接途径影响土壤有机碳。土壤养分的变化与微生物固碳和降解基因丰度的变化密切相关，其与有机碳和有机碳的关系强于与矿物相关有机碳的关系。总体而言，我们的研究结果表明，粪肥浆与化肥在促进有机碳固存方面的有效性不是普遍的，而是强烈依赖于环境的，这强调了可持续土壤碳管理需要针对特定地点的策略。

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引用次数: 0

The regulation of Cd and As behavior by the iron oxide-organic matter interaction: The simultaneous immobilization mechanism of coal gasification slag 氧化铁-有机物相互作用对Cd和As行为的调控：煤气化渣的同步固定化机理

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: 2026-01-12 DOI: 10.1016/j.eti.2026.104754

Chang Xing , Shunhao Ai , Hui Wang , Hao Zhang , Changzhi Zhou , Ying Yuan , Wenbing Tan

Cadmium (Cd) and arsenic (As) co-contamination in agricultural soils is challenging to remediate due to their opposing geochemical behaviors. Although iron-modified gasification slag (IGS) can simultaneously adsorb Cd and As, its mechanisms in inhibiting the migration of Cd and As within the soil-plant system, as well as its interactions with dissolved organic matter (DOM), remain unclear. Through a pot experiment, it was demonstrated that the application of IGS significantly reduces the bioavailability of Cd from 0.40 mg/kg to 0.18 mg/kg and As from 12.66 mg/kg to 6.49 mg/kg, while promoting their transformation into more stable soil fractions. Consequently, IGS effectively blocked Cd and As transformation, reducing Cd and As concentrations in plant leaves from 0.96 mg/kg and 0.37 mg/kg to 0.12 mg/kg and 0.14 mg/kg, respectively. Mechanistic analysis revealed that the oxidation and dissolution of zero-valent iron in IGS drives the formation of active iron oxide phases. These new oxides serve as primary sinks, immobilizing Cd and As through adsorption and incorporation. Furthermore, IGS altered soil DOM, reducing its total content and specific fulvic/humic components, as characterized by excitation-emission matrix fluorescence spectroscopy. This reduction is attributed to the formation of iron oxide-DOM complexes, which diminishes the pool of ligands available for metal mobilization, thereby enhancing the net sequestration of Cd and As. Our findings elucidate the coupled Fe-DOM processes underpinning IGS efficacy, advancing its potential application for the simultaneous remediation of Cd and As.

镉和砷在农业土壤中的共污染由于其相反的地球化学行为而具有挑战性。虽然铁改性气化渣（IGS）可以同时吸附Cd和As，但其抑制Cd和As在土壤-植物系统内迁移的机制及其与溶解有机质（DOM）的相互作用尚不清楚。盆栽试验结果表明，施用IGS显著降低了镉和砷的生物利用度，镉和砷的生物利用度分别从0.40 mg/kg和12.66 mg/kg降至0.18 mg/kg和6.49 mg/kg，促进了镉和砷转化为更稳定的土壤组分。因此，IGS有效地阻断了Cd和As的转化，将植物叶片中Cd和As的浓度分别从0.96 mg/kg和0.37 mg/kg降低到0.12 mg/kg和0.14 mg/kg。机理分析表明，零价铁在IGS中的氧化和溶解驱动了活性氧化铁相的形成。这些新的氧化物作为初级汇，通过吸附和吸附固定Cd和as。此外，IGS改变了土壤DOM，降低了其总含量和特定的腐殖/腐殖质成分，并通过激发-发射矩阵荧光光谱进行了表征。这种减少归因于氧化铁- dom络合物的形成，这减少了可用于金属动员的配体池，从而增强了镉和砷的净固存。我们的研究结果阐明了支持IGS功效的耦合Fe-DOM过程，推进了其在同时修复Cd和As方面的潜在应用。

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引用次数: 0

A novel strategy for the management of drug-resistant bacteria in wastewater: Preparation and application of bacteriophage-loaded functionalized Fe3O4 nanoparticles 管理废水中耐药细菌的新策略：噬菌体负载功能化Fe3O4纳米颗粒的制备和应用

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: 2025-12-15 DOI: 10.1016/j.eti.2025.104702

Pei Wang , Xiangyu Kong , Qibai Chen , Shenyu Pang , Shunyuan Pan , Zepeng Zhao , He Li , Dongyang Gao , Jun Song

Water resource contamination by drug-resistant bacteria is a critical issue, which directly increases the complexity and difficulty of wastewater treatment. Given the limitations of conventional wastewater treatment methodologies in addressing drug-resistant bacterial contamination, there is an imperative need for the development of novel wastewater treatment technologies. In this study, magnetic Fe₃O₄ nanoparticles was selected as a bacteriophage (phage) delivery system to improve the bacterial capture efficiency of phages. The specific recognition ability of phages and the functional characteristics of Fe₃O₄ were used to achieve efficient targeted removal of drug-resistant bacteria in wastewater through a synergistic effect. The magnetism of the system makes it highly recyclable, minimizes the use of chemical reagents, and reduces the risk of secondary pollution. The results demonstrated that magnetic Fe₃O₄ nanoparticles exhibit good magnetism and can load phages from various host genera as well as different phage families. Surfactin can effectively improve the dispersion and loading capacity of Fe₃O₄. The highest loading efficiency is achieved within 2 h. The loading amount of phage GEP101 reached 2.44 × 10⁸ PFU/mL, with a loading rate of 85.12 %. The loading rate of other phages can exceed 75 %. Within 3 h, it removed 96.82 % of Escherichia coli, significantly inhibited biofilm formation, and maintained a recovery rate of 84.67 % and a loading rate of 53.71 % after 6 cycles. In simulated wastewater, its sterilization rate (97.39 %) was significantly higher than that of other groups, offering a novel solution to the contamination of wastewater by drug-resistant bacteria.

耐药细菌污染水资源是一个关键问题，它直接增加了废水处理的复杂性和难度。鉴于传统废水处理方法在处理耐药细菌污染方面的局限性，迫切需要开发新的废水处理技术。本研究选择磁性Fe3O4纳米颗粒作为噬菌体（phage）递送系统，以提高噬菌体的细菌捕获效率。利用噬菌体的特异性识别能力和Fe3O4的功能特性，通过协同作用，实现对废水中耐药菌的高效靶向去除。该系统的磁性使其高度可回收，最大限度地减少了化学试剂的使用，并降低了二次污染的风险。结果表明，磁性Fe3O4纳米颗粒具有良好的磁性，可以装载来自不同宿主属和不同噬菌体家族的噬菌体。表面素能有效提高Fe3O4的分散和负载能力。在2 h内达到最高加载效率。噬菌体GEP101的载药量为2.44 × 108 PFU/mL，载药率为85.12 %。其他噬菌体的加载率可超过75% %。在3 h内，去除大肠杆菌96.82 %，显著抑制生物膜的形成，6次循环后，回收率为84.67 %，加载率为53.71 %。在模拟废水中，其灭菌率（97.39 %）显著高于其他组，为耐药菌污染废水提供了新的解决方案。

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引用次数: 0

Revealing controlled release mechanism of starch-based polyurethane coated urea: A kinetics insight 揭示淀粉基聚氨酯包覆尿素的控释机制：动力学洞察

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: 2025-12-04 DOI: 10.1016/j.eti.2025.104679

Minhui Pang , Zirui Liu , Hongyan Li , Xuan Guo , Lixia Li

Bio-based coated fertilizers are promising alternatives to conventional chemical fertilizers due to their excellent performances. Identifying key influencing factors and deciphering controlled release mechanism are essential for their development. Kinetic modeling is a powerful tool for elucidating the complex mechanism governing nutrient release. However, a significant technical bottleneck lies in the gap between idealized laboratory evaluations and practical field performance. Herein, controlled release mechanism of starch-based polyurethane coated urea (BPCU), was elucidated based on the synergistic effect of coating materials and environmental factors. Nutrient release behaviors of BPCU were investigated under different temperatures and soil moisture contents. Structural changes of BPCU coating at various release stages were analyzed by using techniques such as SEM in detail, and release kinetics were evaluated using four classical models. It was found that temperature was the key factor affecting its nutrient release, and higher temperature favored the swelling rate resulting in a rapid nutrient release and the shortening release longevity. SEM and CT results indicated that the expansion of the bio-based coating in water increased the volume and number of micropores. Furthermore, the BPCU release process exhibited two kinetic patterns, namely, polymer swelling and relaxation conforming to non-Fickian diffusion in the first half and non-swelling diffusion belonging to Fickian diffusion in the second half. A release kinetics prediction model was proposed, with an average relative error of 14.5 %. This study narrows the gap between laboratory evaluation and practical field application, providing support for the development of bio-based coated fertilizers.

生物基包膜肥料具有优良的性能，是传统化学肥料的理想替代品。确定其关键影响因素，破解其控释机制是其发展的关键。动力学建模是阐明控制养分释放的复杂机制的有力工具。然而，一个重要的技术瓶颈在于理想的实验室评估和实际的现场性能之间的差距。本文基于涂层材料与环境因素的协同作用，对淀粉基聚氨酯包覆尿素（BPCU）的控释机理进行了研究。研究了不同温度和土壤含水量条件下BPCU的养分释放行为。利用扫描电镜等技术详细分析了BPCU涂层在不同释放阶段的结构变化，并利用四种经典模型对其释放动力学进行了评价。结果表明，温度是影响其养分释放的关键因素，温度越高，溶胀率越高，养分释放速度越快，释放寿命越短。SEM和CT结果表明，生物基涂层在水中的膨胀增加了微孔的体积和数量。BPCU的释放过程表现出两种动力学模式，即聚合物在前半部分属于非菲克扩散的溶胀松弛和在后半部分属于菲克扩散的非溶胀扩散。建立了释放动力学预测模型，平均相对误差为14.5 %。该研究缩小了实验室评价与实际应用之间的差距，为生物基包膜肥料的开发提供了支持。

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引用次数: 0

Low-cost CO₂ sensors reveal seasonal and management-driven soil carbon fluxes in a Mediterranean agroecosystem 低成本CO 2传感器揭示了地中海农业生态系统中季节性和管理驱动的土壤碳通量

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: 2026-01-02 DOI: 10.1016/j.eti.2025.104743

Humberto Flores-Landeros , Ana Grace Alvarado , Anna Jurusik , Jorge Andres Morande , Emily Waring , Thomas C. Harmon

Soil is the Earth’s second-largest carbon sink, and understanding soil carbon dynamics is critical for sustainable climate mitigation. Monitoring soil gas emissions offers an effective way to track changes in soil carbon storage driven by climate and agricultural practices. This study assessed seasonal soil CO₂ efflux from 5 ha of agricultural land in Merced, California, a Hot-Summer Mediterranean climate region, as it transitioned from flood-irrigated pasture to sprinkler-irrigated cropland. Five distinct land management events or practices were examined: flood irrigation, pasture grazing, soil disking, rainfed winter forage cultivation, and sprinkler-irrigated row cropping. We hypothesize that efflux regimes are primarily driven by seasonal changes in soil moisture, temperature, and vegetation and that land management activities will restructure these conditions to produce distinct efflux responses. Efflux rates were measured using low-cost portable CO₂ sensors during synoptic sampling campaigns from Summer/Fall 2022 through Fall 2024. The highest mean CO₂ efflux occurred during flood (5.1 µmol m⁻² s⁻¹) and sprinkler irrigation (3.5 µmol m⁻² s⁻¹), approximately 2–4 × greater than during disking, pasture, or cultivation periods. Ordinary least squares regression identified soil moisture as the strongest predictor of efflux (β = 5.91, p < 0.001), followed by vegetation cover (β = 2.92, p < 0.001), and soil temperature (β = 0.04, p < 0.043). Unsupervised cluster analysis grouped observations into three distinct seasonal regimes: (1) Winter (Pasture), (2) Summer (Flood), and (3) Fall (Disking, Pasture, and Sprinkler). These results mainly supported our hypothesis advancing the understanding of how seasonal and management-driven factors shape carbon cycling in Mediterranean agroecosystems and inform practical strategies for monitoring and managing CO₂.

土壤是地球上第二大碳汇，了解土壤碳动态对可持续减缓气候变化至关重要。监测土壤气体排放为跟踪气候和农业实践驱动的土壤碳储量变化提供了一种有效方法。本研究评估了加州默塞德5 ha农业用地的季节性土壤CO₂外流，这是一个炎热的夏季地中海气候区，从洪水灌溉的牧场过渡到喷灌的农田。研究考察了五种不同的土地管理事件或实践：洪水灌溉、牧场放牧、土壤圆盘化、雨养冬季饲料种植和喷灌行作。我们假设外排机制主要是由土壤湿度、温度和植被的季节性变化驱动的，土地管理活动将重构这些条件，以产生不同的外排响应。在2022年夏秋至2024年秋的天气性采样活动中，使用低成本便携式CO₂传感器测量了外排率。最高的平均CO₂外流发生在洪水（5.1µmol m⁻²s⁻¹）和喷灌（3.5µmol m⁻²s⁻¹）期间，大约比盘田、牧场或耕种时期多2-4 × 。普通最小二乘回归发现土壤湿度是最强的预测因子（β = 5.91, p <； 0.001），其次是植被覆盖（β = 2.92, p <； 0.001）和土壤温度（β = 0.04, p <； 0.043）。无监督聚类分析将观测结果分为三个不同的季节状态：(1)冬季（牧场），(2)夏季（洪水）和(3)秋季（圆盘、牧场和洒水器）。这些结果主要支持了我们的假设，促进了对季节和管理驱动因素如何影响地中海农业生态系统碳循环的理解，并为监测和管理CO₂提供了实用策略。

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引用次数: 0

Use of zinc-rich extracts recovered from black mass of spent batteries as a sustainable and efficient alternative source of zinc for plants 利用从废电池黑堆中回收的富锌提取物作为植物锌的可持续和高效的替代来源

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.2025.104716

Patricia Almendros , Gabriel Gascó , Laura Sánchez-Martin , Alba Martínez-Nuñez , Ana Méndez

This study explores the potential of glycine-based and glycine/NH₃ leaching of zinc (Zn) from pyrolyzed black mass (PBM) of spent Zn/C and alkaline batteries to obtain extracts with fertilizer properties. Zinc recovery was optimized under different extractant/black mass ratios, pH levels and particle size. The most effective extraction conditions were achieved using glycine solutions at pH 10, with a particle size < 50 µm, and a molar ratio of 1:8 (Zn:glycine). The effect of the extracts on germination and vigour of vetch, tomato, lettuce and mustard seedlings was evaluated, as well as their impact on Zn availability in the soil, plant nutrient uptake and microbial biomass after application in a lettuce crop. The results showed that the use of glycine at pH 10 (adjusted with NaOH) allowed the extraction of more than 95 % by weight of Zn from PBM. The extracts showed no phytotoxicity, although their effect depended on the dose, pH and plant species. At doses up to 5 mg Zn L-¹ , they improved the development of vetch, lettuce and mustard seedlings. Zn-glycine was as effective as ZnSO₄ in nutrient uptake by lettuce and in increasing Zn availability in the soil. No synergistic effects of Zn and glycine were detected. These findings support the potential of Zn-glycine extracts from battery waste as an alternative source of micronutrients in agriculture, promoting circular economy strategies and sustainable nutrient recycling.

本研究探讨了甘氨酸基浸出法和甘氨酸/NH3浸出法从废锌/C和碱性电池的热解黑质（PBM）中浸出锌（Zn）以获得具有肥料性能的浸出液的潜力。在不同萃取剂/黑质量比、pH和粒径条件下，对锌的回收率进行了优化。在pH为10，粒径为 <； 50 µm，摩尔比为1:8 （Zn：甘氨酸）的条件下，提取效果最佳。以莴苣为试验材料，研究了施用紫花苜蓿提取物对紫花苜蓿、番茄、莴苣和芥菜幼苗萌发和活力的影响，以及对土壤锌有效性、植物养分吸收和微生物生物量的影响。结果表明，在pH为10的条件下（用NaOH调节），甘氨酸可以从PBM中提取出95% %以上的锌。提取物对植物无毒性，但其作用与剂量、pH值和植物种类有关。在高达5 mg Zn L-¹ 的剂量下，他们改善了紫薇、生菜和芥菜幼苗的发育。在莴苣吸收养分和提高土壤锌有效性方面，甘氨酸锌与硫酸锌一样有效。锌和甘氨酸没有协同作用。这些发现支持从电池废料中提取的甘氨酸锌作为农业微量营养素的替代来源，促进循环经济战略和可持续的营养循环的潜力。

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引用次数: 0