Environmental Technology & Innovation最新文献

{"title":"Two-stage inoculation of partially antagonistic Bacillus sp. strains improves imidacloprid pesticide degradation and humic acid formation during vegetable waste composting","authors":"Yajun Duan ,&nbsp;Guohui Ning ,&nbsp;Weizhe Li ,&nbsp;Xue Wang ,&nbsp;Jiahui Li ,&nbsp;Mingyue Qi ,&nbsp;Xiaomin Wang ,&nbsp;Yali Huang ,&nbsp;Jianfeng Xu ,&nbsp;Cunpeng Zhao ,&nbsp;Zhixin Yang ,&nbsp;Yubo Wang","doi":"10.1016/j.eti.2025.104704","DOIUrl":"10.1016/j.eti.2025.104704","url":null,"abstract":"<div><div>While phased inoculation has been demonstrated to accelerate compost maturation, its potential effects on detoxifying pesticide-laden vegetable waste remains to be demonstrated. The objective of this study was to determine the efficacy of two-stage inoculation on composting imidacloprid (IMI)-spiked vegetable waste, employing four lignocellulose-degrading <em>Bacillus</em> strains from our strain collection. In IMI-containing mineral salt medium, <em>B. stratosphericus</em> strain M1, <em>B. licheniformis</em> strain Q1, <em>B. subtilis</em> strain QK, and <em>B. altitudinis</em> strain F11 were all individually capable to degrade the pesticide, in decreasing order, with removal efficiencies between 51 % and 10 %. A combined mixture M, used as a first inoculum for composting, excluded strain F11, due to antagonistic growth effects. After 7 days of composting, a secondary inoculation with strain F11 was applied. This two-stage inoculation (MF) enhanced IMI degradation compared to the non-inoculated control and single-stage inoculation with M, reducing IMI half-life by 8.7 days and 1.5 days, respectively. When composting was complete, MF had achieved 81 % IMI degradation, with exogenous bacteria contributing 77 % of the removal efficiency, 63 % higher than the M treatment. Additionally, MF increased the final humic acid content and polymerization degree by 17 % and 25 %, respectively, compared to M treatment, while reducing the fulvic acid content. Multiple linear regression confirmed that fulvic acid content and IMI residue concentrations were significant factors affecting humic acid content in inoculated treatments. This study shows that two-stage inoculation can provide dual benefits of accelerating vegetable waste composting and detoxifying pesticide residues, offering an efficient strategy for sustainable agricultural waste management.</div></div>","PeriodicalId":11725,"journal":{"name":"Environmental Technology & Innovation","volume":"41 ","pages":"Article 104704"},"PeriodicalIF":7.1,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145798523","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Assessment of the tritium analysis performance of a nonylphenol-ethoxylate-free liquid scintillator by interlaboratory comparison","authors":"Marielle Crozet ,&nbsp;Véronique Labed ,&nbsp;Céline Augeray ,&nbsp;Audrey Bacchetta ,&nbsp;Lionel Bec-Espitalier ,&nbsp;Nicolas Baglan ,&nbsp;Eric Bohaud ,&nbsp;Giacomo Canciani ,&nbsp;Sabine Charbouillot ,&nbsp;Christèle Colin ,&nbsp;Coryse Combes ,&nbsp;Théo Cordara ,&nbsp;Benoît Daniel ,&nbsp;Nicolas Debain ,&nbsp;Natacha Einaudi ,&nbsp;Sandrine Fleury ,&nbsp;Kevin Galliez ,&nbsp;Claire Gégout ,&nbsp;Héloïse Gervot ,&nbsp;Aurélie Gollion ,&nbsp;Cédric Rivier","doi":"10.1016/j.eti.2025.104666","DOIUrl":"10.1016/j.eti.2025.104666","url":null,"abstract":"<div><div>With a view to using liquid scintillators compliant with the REACH (Registration, Evaluation, Authorisation and Restriction of Chemicals) regulations, some laboratories have expressed an interest in testing the ProSafe LT+ , a liquid scintillator without nonylphenol-ethoxylates (NPE). In order to evaluate the impact of using this new liquid on the analysis results, the CETAMA consortium organised two interlaboratory comparisons. Two ranges of tritium activity were selected to meet the needs of environmental and waste monitoring. 23 laboratories took part in these exercises, comparing results obtained with Prosafe LT+ to those obtained with NPE-containing liquid scinitllators. From the results it was seen that the background and the background noise obtained with the nonylphenol-ethoxylates-free liquid scintillator are not significantly different from that of the usual liquid scintillator, whether for the waste or environmental domain, over short (15 min) or long (200 min) counting times. Furthermore, the decision threshold and the detection limit values estimated with ProSafe LT+ were no different from those of usual scintillators. However, for the measurement of samples, and particularly for samples with a tritium activity above 15 Bq/kg, the ProSafe LT+ presented a reduced measurement quality compared to the nonylphenol-ethoxylates-containing LS i.e. the measurement uncertainty obtained with ProSafe LT+ is systematically higher. In light of the results obtained through this study, the authors recommend the use of the ProSafe LT+ with the proviso that the deterioration in measurement uncertainty be taken into account and found to be compatible with a laboratory’s individual needs.</div></div>","PeriodicalId":11725,"journal":{"name":"Environmental Technology & Innovation","volume":"41 ","pages":"Article 104666"},"PeriodicalIF":7.1,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145693018","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Eutrophication leads to production and accumulation of recalcitrant dissolved organic matter in an urban-agricultural wetland","authors":"Xiaoya Lin ,&nbsp;Jiajun Xu ,&nbsp;Ting Wang ,&nbsp;Randy A. Dahlgren ,&nbsp;Lanyue Feng ,&nbsp;Wenli Qin ,&nbsp;Qinglong Liang ,&nbsp;Zhixia Qin ,&nbsp;Zengling Ma ,&nbsp;Liyin Qu","doi":"10.1016/j.eti.2026.104766","DOIUrl":"10.1016/j.eti.2026.104766","url":null,"abstract":"<div><div>Over 30 % of global wetlands are threatened due to eutrophication driven by anthropogenic activities that alter dissolved organic matter (DOM) concentrations and composition, and profoundly influence wetland carbon budgets. However, the fate of eutrophication-derived DOM and its ultimate contribution to wetland carbon cycling remain unclear. To address this gap, we conducted a two-year monthly investigation of water quality and DOM optical properties (absorbance and fluorescence) in a eutrophic, urban-agricultural wetland. Dissolved organic carbon increased from spring to summer in both years and was significantly correlated with TLI, TN, COD and Chl <em>a</em>, indicating that eutrophication contributed to the organic carbon pool through both sewage inputs and algal production. Moreover, the loss of protein-like C3, together with a significant negative correlation between microbial humic-like C2 and DO, suggested that microbial deoxygenation transformed eutrophication-derived bio-labile DOM into recalcitrant DOM (RDOM) during summer. In winter, lower temperatures limited microbial carbon transformations, and together with continuous sewage inputs, contributed to an increase in protein-like C3. Concomitantly, RDOM removal through particle adsorption-sedimentation and/or photodegradation exceeded its accumulation during winter. Machine learning analyses suggested that microbial transformation explained 39.1–41.2 % of the variations in humic-like components, surpassing terrestrial inputs, sewage sources and algal production (2.1–31.6 %). Therefore, microbial transformations are considered the dominant driver of wetland RDOM formation. Although eutrophication has negative effects on wetland ecosystems, our findings highlight its potential to enhance carbon sequestration if sewage and algae are effectively managed.</div></div>","PeriodicalId":11725,"journal":{"name":"Environmental Technology & Innovation","volume":"41 ","pages":"Article 104766"},"PeriodicalIF":7.1,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146074216","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Enhancing ecological functions of Taxodium hybrid plantations in the Dianchi Lake riparian zone: A case study on nitrogen and phosphorus removal","authors":"Qian Li ,&nbsp;Rui Liu ,&nbsp;Yu Wang ,&nbsp;Kun Wang ,&nbsp;Wei Ma ,&nbsp;Hua Zhang ,&nbsp;Dasong Lin ,&nbsp;Hairui Li","doi":"10.1016/j.eti.2026.104792","DOIUrl":"10.1016/j.eti.2026.104792","url":null,"abstract":"<div><div>Riparian plantations of <em>Taxodium</em> hybrid ‘Zhongshanshan’ (hereafter Zhongshanshan) have been widely established along the shoreline of Dianchi Lake (Southwest China) as eco-engineering buffers to intercept non-point source nitrogen (N) and phosphorus (P). However, nutrient retention under contrasting hydrological regimes and its governing controls remain poorly constrained. We compared two representative Zhongshanshan stands: a seasonally flooded site with wet–dry alternation (LWM) and a permanently flooded site under continuous inundation (LYH). Surface (0–15 cm) and subsoil (30–50 cm) soils were sampled along the runoff pathway from the inflow side toward the lake. Both stands showed clear declines in total nitrogen (TN) along the transect, with mean reductions of ∼28.9 % (LWM) and ∼39.4 % (LYH), and LYH also exhibited substantial total phosphorus (TP) removal (up to ∼36.5 %). In contrast, ammonium-N (NH₄⁺-N), nitrate-N (NO₃⁻-N), and available phosphorus (AP) occasionally increased toward the lakeward edge, indicating potential secondary release hotspots. Spearman correlations and redundancy analysis suggested that ferric iron (Fe³⁺) was the strongest correlate of N and P attenuation under seasonal flooding, whereas soil organic matter was the key predictor under permanent inundation. Concurrent shifts in bacterial community structure, including elevated relative abundance of <em>Bacillus asahii</em>, were associated with nutrient accumulation or depletion patterns. Our results highlight the importance of hydrology-adapted buffer design and management; moderate planting density (avoiding overly dense stands), a mixed tree–shrub–herb understorey, and ∼3 m × 3 m spacing are recommended to enhance nutrient interception and support eutrophication mitigation in plateau lakes such as Dianchi Lake.</div></div>","PeriodicalId":11725,"journal":{"name":"Environmental Technology & Innovation","volume":"41 ","pages":"Article 104792"},"PeriodicalIF":7.1,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146074219","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Direct nanofiltration treatment using flat-sheet membrane modules reconfigured from spiral-wound elements","authors":"Sandrine Boivin ,&nbsp;Tetsuro Ueyama ,&nbsp;Norika Tanaka ,&nbsp;Tatsumi Shimono ,&nbsp;Naoki Ohkuma ,&nbsp;Kyoungsoo Park ,&nbsp;Takahiro Fujioka","doi":"10.1016/j.eti.2025.104678","DOIUrl":"10.1016/j.eti.2025.104678","url":null,"abstract":"<div><div>Direct nanofiltration (NF) treatment without pretreatment has attracted attention for achieving low-energy advanced drinking water treatment in drinking water applications. However, the validity of submerged NF systems for large-scale modules and variable feed water quality remains unexplored. This study aimed to assess the viability of pump-operated and gravity-driven membrane (GDM) filtration of lake water without pretreatment using NF membrane modules reconfigured from commercially available NF membrane elements typically suited for pressurized operation. The permeate flux of the pump-operated NF system gradually declined from 2.3 to 1.2 L/m²h at a feed temperature of 7–11°C until 12 d; thereafter, the permeate flux remained stable until 36 d. Cleaning the membrane surface by sponge wiping achieved near-full recovery of the permeance. The removal of dissolved organic matter and conductivity were relatively low, at 30–50 % and 10–30 % respectively. The specific energy consumption (SEC) of the pump-operated NF system could be as low as 116 Wh/m³, based on the pilot-scale tests. In contrast, the permeate flux of GDM filtration using the reconfigured NF membrane modules remained constant at approximately 0.28–0.37 L/m²h at a feed temperature of 5–22°C for over 78 d despite the limited water head available. The separation performance of GDM filtration was comparable to that of the pump-operated NF system, while the removal of conductivity (ions) was negligible. Despite the limitations of permeance and separation performance, both pump-operated and gravity-driven systems with reconfigured NF membrane modules have the potential to achieve low-energy and decentralized water supply systems.</div></div>","PeriodicalId":11725,"journal":{"name":"Environmental Technology & Innovation","volume":"41 ","pages":"Article 104678"},"PeriodicalIF":7.1,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145749177","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Integrated low-temperature washing and drying for sustainable hygiene of domestic laundry","authors":"Rok Fink ,&nbsp;Blanka Vozel ,&nbsp;Manca Lunder ,&nbsp;Nina Čuk ,&nbsp;Brigita Tomšič","doi":"10.1016/j.eti.2026.104763","DOIUrl":"10.1016/j.eti.2026.104763","url":null,"abstract":"<div><div>Low-temperature laundering is promoted to reduce the environmental impact of domestic textile care; however, washing at ≤ 40 °C is insufficient for hygienic decontamination, rendering the drying stage critical, as microbial survival strongly depends on moisture availability and drying conditions. This study systematically investigates the antimicrobial efficacy of low-temperature washing combined with different drying methods under controlled, household-relevant conditions, and directly links hygiene performance to environmental impact using life cycle assessment (LCA). Cotton carriers inoculated with representative bioindicators were washed at 30 °C using a commercial detergent and subsequently dried by high- and low-temperature tumble drying, controlled indoor air drying, and simulated outdoor solar exposure (Xenotest). Low-temperature washing alone resulted in limited microbial reduction, whereas drying led to substantial additional inactivation. Both high- and low-temperature tumble drying eliminated most microorganisms (&gt;7 log CFU cm⁻²), while simulated indoor air drying achieved significant reductions (∼6 log CFU cm⁻²), indicating that moisture reduction is a dominant mechanism of microbial inactivation, even without elevated drying temperatures. In this respect Xenotest treatment was less effective. The LCA showed that drying accounts for more than 50 % of the total environmental impact of the laundering process, with low-temperature tumble drying reducing overall impacts by approximately 20 % compared to high-temperature drying due to lower electricity consumption. By quantitatively linking microbial hygiene outcomes with environmental impacts, this study provides decision-relevant evidence for optimising domestic laundry practices, demonstrating that energy-efficient drying strategies can compensate for the hygienic limitations of low-temperature washing while significantly reducing the environmental footprint of textile care.</div></div>","PeriodicalId":11725,"journal":{"name":"Environmental Technology & Innovation","volume":"41 ","pages":"Article 104763"},"PeriodicalIF":7.1,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146034622","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Hydrothermal synthesis of FeOF as an activator of peroxymonosulfate for the degradation of lomefloxacin in water","authors":"Haichen Cui ,&nbsp;Zheng Wang ,&nbsp;Yannan Jia ,&nbsp;Weikun Song ,&nbsp;Xue Wang ,&nbsp;Lu Li ,&nbsp;Zhendong Liu ,&nbsp;Binbin Wu ,&nbsp;Weixiao Gong ,&nbsp;Wanting Feng ,&nbsp;Yuanxiang Shan ,&nbsp;Junchi Zhang","doi":"10.1016/j.eti.2026.104760","DOIUrl":"10.1016/j.eti.2026.104760","url":null,"abstract":"<div><div>In this study, FeOF was successfully synthesized by first preparing the precursor FeSiF₆·6 H₂O from iron powder, followed by a hydrothermal reaction at 200°C for 10 h using a thoroughly stirred mixture of the precursor and n-propanol. The synthesized FeOF was employed as an activator of peroxymonosulfate (PMS) for the degradation of lomefloxacin (LMF). Experimental results demonstrate that the FeOF/PMS system not only achieved 74.6 % LMF degradation but also maintained high degradation efficiency after five consecutive cycles. More importantly, the system significantly reduced the biotoxicity of the reaction intermediates, thereby offering a promising new strategy for addressing antibiotic contamination.</div></div>","PeriodicalId":11725,"journal":{"name":"Environmental Technology & Innovation","volume":"41 ","pages":"Article 104760"},"PeriodicalIF":7.1,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146034618","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Removal of microbial and genetic contaminants from livestock wastewater using chemically enhanced primary treatment for agricultural irrigation","authors":"Hyun Min Jang ,&nbsp;Eunsung Kan","doi":"10.1016/j.eti.2026.104757","DOIUrl":"10.1016/j.eti.2026.104757","url":null,"abstract":"<div><div>Irrigation water from the livestock farm serves as a key pathway to disseminate microbial and genetic contaminants. In this study, the applicability of chemically enhanced primary treatment (CEPT) to lagoon-derived dairy farm wastewater was evaluated for the removal of microbial and genetic contaminants (i.e., antibiotic resistance genes (ARGs), and antibiotic resistance bacteria (ARB)), as well as conventional pollutants. Significant removal of both intracellular and extracellular ARGs was achieved at FeCl₃ dosages above 3 g/L during CEPT treatment. Furthermore, no total coliforms, <em>E. coli</em>, or cultivable ARB were detected following CEPT treatment at FeCl₃ dosages above 3 g/L. Considering these findings, CEPT is expected to mitigate the adverse effects of microbial and genetic contaminants resulting from agricultural irrigation. Future efforts should focus on optimizing CEPT to enhance its economic efficiency across different conditions.</div></div>","PeriodicalId":11725,"journal":{"name":"Environmental Technology & Innovation","volume":"41 ","pages":"Article 104757"},"PeriodicalIF":7.1,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146034612","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Impact of turning frequency on the transformation and bioavailability of nutrient elements and heavy metals in large-scale sheep manure composting on the Qinghai–Tibet Plateau","authors":"Rui Cai ,&nbsp;Rongrong Li ,&nbsp;Qingqing Zhou","doi":"10.1016/j.eti.2025.104677","DOIUrl":"10.1016/j.eti.2025.104677","url":null,"abstract":"<div><div>A comprehensive understanding of the transformation mechanisms of nutrient elements and heavy metals, as well as their bioavailability during composting, is critical to ensuring the safety of compost products and improving their nutritional quality. This study explored the transformation mechanisms of heavy metals, nitrogen, and phosphorus forms in industrial-scale composting of sheep manure on Qinghai-Tibet Plateau (QTP) under three turning frequencies: once every two days (T1), four days (T2), and six days (T3). Results showed that T1 increased the maximum composting temperature by 6.6 °C compared to T3 and increased the humification index by 15.1 %, respectively. T1 increased the contents of available nitrogen and labile phosphorus by 12.1 % and 12.8 %, respectively, enhancing nitrogen and phosphorus availability for plant seedlings. T1 significantly decreased the proportions of exchangeable Pb, Cr, and Mn in the compost products by 13.7 %, 11.8 %, and 17.1 %, respectively (<em>P</em> &lt; 0.05), while significantly increasing the proportions of residual Mn, Cu, Pb, and Cr, thereby reducing plant uptake of these heavy metals. More frequent turning suppressed denitrification while enhancing nitrite ammonification. This contributes to reduced nitrogen loss and enhanced nitrogen availability. Additionally, more frequent turning enhanced organic P mineralization, inorganic P solubilization, and polyphosphate degradation, thereby improving phosphorus bioavailability. Moreover, more frequent turning can influence heavy metal forms by modulating maturity, moisture content, and bacterial communities. These findings provide scientific support for the effective resource utilization of livestock waste on QTP.</div></div>","PeriodicalId":11725,"journal":{"name":"Environmental Technology & Innovation","volume":"41 ","pages":"Article 104677"},"PeriodicalIF":7.1,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145665353","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Alternate wet‑dry irrigation coupled with magnesium-biochar fertilizer improves carbon sequestration, NH₃ mitigation, and water‑N use efficiency in rice paddies","authors":"Yanqi Li ,&nbsp;Xuanming Wang ,&nbsp;Fuzheng Gong ,&nbsp;Yu Guan ,&nbsp;Qi Wu ,&nbsp;Daocai Chi ,&nbsp;Nanthi S. Bolan ,&nbsp;Kadambot H.M. Siddique","doi":"10.1016/j.eti.2026.104765","DOIUrl":"10.1016/j.eti.2026.104765","url":null,"abstract":"<div><div>The development of low-carbon, water-efficient rice cultivation systems is crucial for sustainable agriculture. Nevertheless, although alternate wet-dry irrigation (I_AWD) can save water and promote the mineralization of soil organic nitrogen (N), it may reduce soil organic carbon (SOC) sequestration and increase ammonia (NH₃) volatilization. To address this trade-off, a magnesium–modified biochar–based fertilizer (MBF) was applied to optimize biochar’s inherently high C:N ratio while enable controlled nitrogen release. A two-year field split-plot experiment was conducted to evaluate the effects of two irrigation regimes (main plots) and five fertilization practices (subplots) on SOC, soil inorganic N, water–N use efficiency, yield, and NH₃ emissions. Results showed that I_AWD combined with N fertilizer reduction and MBF enhanced stem/leaf-to-grain N translocation through the modulation of crop growth rates, increasing yield and grain N use efficiency (NUE_g). Correlation analysis demonstrated that higher soil NH₄⁺ –N suppressed SOC priming, while reduced NH₄⁺–N during basal fertilization and increased SOC limited NH₃ emissions and improved water use efficiency (WUE). Structural equation modeling indicated NH₃ emissions directly reduced NUE and indirectly affected WUE. Compared with conventional fertilization, the treatment of 25 % N reduction combined with 10 t ha⁻¹ MBF (N_3/4B₂) increased SOC by 14.40 %, optimized NH₄⁺–N distribution (reduction during basal fertilization but enhancement during topdressing periods), reduced NH₃ emissions by 10.78 %, and increased yield by 4.82 % and WUE by 10.86 % (two–year averages). Thus, TOPSIS modeling confirmed I_AWDN_3/4B₂ as a sustainable strategy integrating water-saving, yield stability, carbon sequestration, and NH₃ mitigation.</div></div>","PeriodicalId":11725,"journal":{"name":"Environmental Technology & Innovation","volume":"41 ","pages":"Article 104765"},"PeriodicalIF":7.1,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146074121","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}