Environmental Technology & Innovation最新文献

{"title":"Mitigation of odor emissions by replacing soybean meal with unconventional protein ingredients: Assessment via in vitro simulated fermentation","authors":"Ganlin Lv ,&nbsp;Hao Fu ,&nbsp;Yuhong Liao ,&nbsp;Xinting Ma ,&nbsp;Qiaoyun Chen ,&nbsp;Qiang Han ,&nbsp;Guanhong Li ,&nbsp;Xionge Pi","doi":"10.1016/j.eti.2026.104749","DOIUrl":"10.1016/j.eti.2026.104749","url":null,"abstract":"<div><div>To address the challenges of odor pollution from livestock farming and the need for resource conservation and reduced feed consumption, this study utilized an <em>in vitro</em> fermentation model to simulate the hindgut fermentation of fattening pigs. With soybean meal serving as the control, the impacts of eight unconventional protein feed ingredients—specifically defatted rice bran, peanut meal, two types of sesame meal, palm kernel meal, sunflower meal, dephenolic cottonseed protein, and corn gluten meal—on intestinal microbiota composition and metabolic activity were systematically evaluated. Fermentation end-products and gas emissions were quantified, and microbial community structure was analyzed using 16S rRNA gene sequencing. The palm kernel meal enhanced microbial diversity by enriching the <em>Subdoligranulum</em> and increased butyric acid production. The abundance of <em>Lactobacillus</em> enriched in the sesame meal-J was negatively correlated with the generation of H₂S and H₂, while <em>Megasphaera</em> and <em>Streptococcus</em> were positively correlated with the production of sulfur-containing gases and isovaleric acid. The microbial metabolic activity in the functional pathway of cysteine and methionine in the sesame meal-Q group increased by 60.4 %, positively regulating H₂S emissions. Through the regulatory framework of \"nutrition-microbiota-odor emissions\", this study revealed the mechanism by which unconventional protein feed ingredients regulate the gut microbiota of growing pigs to exert nutritional support and odor reduction effects. It provides a theoretical basis for the development of environmentally friendly feed and the reduction of soybean meal usage.</div></div>","PeriodicalId":11725,"journal":{"name":"Environmental Technology & Innovation","volume":"41 ","pages":"Article 104749"},"PeriodicalIF":7.1,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145972772","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":"Moisture-dependent silicon reduces N2O emission: Insights from microbial community structure and soil properties in paddy soil","authors":"Yafang Tang ,&nbsp;Xin Wen ,&nbsp;Zhaoqing Zhai ,&nbsp;Zengkui Yu ,&nbsp;Mingtao Long ,&nbsp;Hongxia Huang ,&nbsp;Hongling Qin","doi":"10.1016/j.eti.2025.104718","DOIUrl":"10.1016/j.eti.2025.104718","url":null,"abstract":"<div><div>Silicon (Si) fertilizer application has been observed reduce nitrous oxide (N₂O) emissions in paddy soil. However, the responses of microbial communities remain poorly understood. In this study, we conducted a microcosm experiment with three Si application levels: CK (0 mg kg⁻¹, SiO₂), Si1 (100 mg kg⁻¹, SiO₂), and Si2 (200 mg kg⁻¹, SiO₂) under two soil moisture conditions-Flooding (125 % w/w) and Drying (60 % w/w). The abundance and the microbial community structure of <em>nirK</em>, <em>nirS</em> for N₂O production, <em>nosZ</em> I and <em>nosZ</em> II for N₂O reduction were analyzed. Under flooding condition, Si2 reduced N₂O emissions by 87.1 %, this mitigation effect weakened to 52.9 % under drying. Microbial community structure rather than size was regulated by Si application. N₂O-reducing microbial communities were strongly influenced by Si amendment, only <em>nirS</em>-containing denitrifier was observed in N₂O production process. Relative abundance of genus <em>Noviherbaspirillum</em> was typically depressed by Si application and positively correlated with N₂O flux. Several genera, such as <em>Pleomorphomonas</em>, <em>Achromobacter</em>, <em>Intrasporangium</em> were identified as crucial mediators of N₂O reduction process. Co-occurrence network analysis indicated greater complexity in the N₂O-reducing microbial communities in response to Si application. PLS-SEM reveals different mechanisms of Si depress N₂O flux in different soil moisture. Under flooding condition, the N₂O mitigation effect of Si was primarily driven by microbial processes. While under drying condition, the mitigation effect was dominated by a strong abiotic-chemical pathway. These insights contribute to a mechanistic understanding of how Si management can be optimized for N₂O mitigation in paddy soil.</div></div>","PeriodicalId":11725,"journal":{"name":"Environmental Technology & Innovation","volume":"41 ","pages":"Article 104718"},"PeriodicalIF":7.1,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145938966","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":"Optimizing energy budget for UV driven biofilm prevention using response surface methodology","authors":"Leila Alidokht,&nbsp;Karina A. Chavarria,&nbsp;Mariana Lanzarini-Lopes","doi":"10.1016/j.eti.2025.104742","DOIUrl":"10.1016/j.eti.2025.104742","url":null,"abstract":"<div><div>Biofouling presents significant challenges in engineered surfaces, including reduced optical clarity of transparent surfaces, increased surface roughness, and compromised functionality of underwater sensors, observation windows, and cameras. UV-emitting glass (UEG) technology provides an innovative solution to biofouling by targeting the attachment surface, effectively disrupting microbial adhesion and growth. However, UEGs performance is highly dependent on design choices and operational parameters. This study uses Response Surface Methodology (RSM) to optimize UEG performance in fouling control, enabling a deeper understanding of how UV irradiance and daily exposure time affect biofilm formation for submersion durations between 5 and 30 days. Although energy budget (EB) generally increases with Log reduction Value (LRV), there is no significant relationship between the two. Therefore, it is important to select the exposure time and UV irradiance that results in the lowest energy budget for a given submersion duration and goal LRV. The UV irradiance and exposure time resulting in lowest energy budget for LRV &gt; 2 is reported for submersions of 1 – 3 weeks. A feasible range of parameters yielding LRV &gt; 2 at minimum EB was identified. For two weeks, a 63 Wh/day/m² (34.4 Wh/day/m²/N log) was achieved for 2.2 LRV at a UV irradiance of 23 µW/cm² for 840 min per day. The LRV and EB were validated for these conditions and both biofilm coverage and morphology were characterized. Interestingly, although LRV and coverage decreased as expected, the biofilm thickness of the control and UV units were statistically the same illustrating that UV light prevents initial attachment but not subsequent growth.</div></div>","PeriodicalId":11725,"journal":{"name":"Environmental Technology & Innovation","volume":"41 ","pages":"Article 104742"},"PeriodicalIF":7.1,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145938970","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":"Decomposition and forecasting of concentrations of highly volatile atmospheric pollutants in plateau cities based on the VMD-CNN-BiLSTM framework","authors":"Jie Liu ,&nbsp;Fanshu Ding ,&nbsp;Xiuyi Yao ,&nbsp;Wanqing Wang ,&nbsp;Ziyu Chen ,&nbsp;Xiaolin Yang ,&nbsp;Haoyuan Zhu","doi":"10.1016/j.eti.2025.104717","DOIUrl":"10.1016/j.eti.2025.104717","url":null,"abstract":"<div><div>In recent years, multiple factors including climate change, accelerated industrialization, and rising population density have led to severe air pollution in numerous cities worldwide. For cities situated in plateau regions, complex topography and unique climatic characteristics further exacerbate the dispersion and accumulation of PM_2.5 and PM₁₀. This results in highly nonlinear and uncertain air quality data, posing significant challenges for accurate pollution concentration forecasting. Therefore, this paper proposes a “Decomposition-Prediction-Integration” framework. This method first employs variational modal decomposition to adaptively decompose raw, chaotic pollutant sequences into a series of more stable, physically meaningful intrinsic modal functions, effectively separating noise from fluctuating trends across different timescales. Subsequently, a CNN-BiLSTM model is constructed: CNN extracts local fine-grained features from multiple IMFs, while BiLSTM learns their long-term bidirectional dependencies. Experimental validation across four monitoring stations in Kunming demonstrates that this framework significantly outperforms eight baseline models in PM_2.5 forecasting. This study not only establishes a new paradigm for air quality prediction in complex topography but, more importantly, identifies and thoroughly analyzes the distinct response mechanisms exhibited by the same decomposition-prediction framework for PM_2.5 and PM₁₀. This reveals the critical importance of model adaptation for different particle sizes in plateau cities.</div></div>","PeriodicalId":11725,"journal":{"name":"Environmental Technology & Innovation","volume":"41 ","pages":"Article 104717"},"PeriodicalIF":7.1,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145939106","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":"Nutrient-dependent bioturbation of calcium ions in acid mine drainage simulations: Thresholds for inhibition and promotion of jarosites-schwertmannite mineral synthesis","authors":"Caichun Wei ,&nbsp;Kanghui Geng ,&nbsp;Fenwu Liu ,&nbsp;Zhenjiang Jin ,&nbsp;Haitao Huang ,&nbsp;Shuqin Li ,&nbsp;Jun Chen ,&nbsp;Lixiang Zhou","doi":"10.1016/j.eti.2025.104722","DOIUrl":"10.1016/j.eti.2025.104722","url":null,"abstract":"<div><div>In this study, the effect of Ca^2 + concentration on the biosynthesis of secondary iron minerals in two different nutrient environments was analyzed by simulating acid mine drainage using shake flask tests, one with a liquid medium containing 9 K and another without it. The Ca²⁺ concentrations in both systems were set at 0, 30, 60, 120, 240, and 480 mg/L. We analyzed pH value(s) level, Fe²⁺ oxidation rate, total Fe precipitation rate, and relevant parameters of secondary iron minerals throughout the mineral formation mediated by <em>Acidithiobacillus ferrooxidans</em> (<em>A. ferrooxidans</em>). The results showed that in the system containing 9 K medium, adding Ca²⁺ inhibited the oxidation of Fe²⁺ during the <em>A. ferrooxidans</em>–mediated mineral formation process. In that case, as the concentration of Ca²⁺ increased, the pH value(s) decreased more slowly, resulting in lower rates for both Fe²⁺ oxidation and total Fe precipitation. The minerals produced from each treatment were primarily jarosites and a small amount of schwertmannite. The overall mineralization process in the system without 9 K medium was significantly slower than in the system with 9 K medium. However, compared to the control group, Ca²⁺ still had a certain positive effect on the biological oxidation process within the system.</div></div>","PeriodicalId":11725,"journal":{"name":"Environmental Technology & Innovation","volume":"41 ","pages":"Article 104722"},"PeriodicalIF":7.1,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145939054","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 carbonization of spent coffee grounds: Hydrochar preparation, characterization, and adsorptive removal of rhodamine 6G","authors":"Lucy Nyambura Karanja ,&nbsp;Elsada Neziri ,&nbsp;Anna Bulátkó ,&nbsp;Rong Shan ,&nbsp;Krisztina László ,&nbsp;Imre Miklós Szilágyi","doi":"10.1016/j.eti.2025.104731","DOIUrl":"10.1016/j.eti.2025.104731","url":null,"abstract":"<div><div>Hydrochars synthesized under different hydrothermal conditions were investigated to evaluate their structural properties and adsorption performance toward Rhodamine 6G (Rh 6G). Increasing hydrothermal temperature and residence time promoted the formation of a condensed carbon framework, consistent with progressive dehydration and aromatization. FTIR analysis revealed oxygen containing functional groups (-OH, C<img>O, and C<img>C), while EDX showed increasing carbon content and decreasing oxygen content with increasing hydrothermal severity. XRD patterns confirmed an amorphous structure, and nitrogen adsorption-desorption analysis indicated low BET surface areas of 2.0–4.53 m² g⁻¹.</div><div>Batch adsorption experiments showed rapid initial uptake of Rh 6G followed by equilibrium, with removal efficiencies of 72–96 %. Adsorption kinetics followed the pseudo-second-order model (R² = 0.991–0.9998), indicating surface-controlled adsorption. Equilibrium data fitted the Langmuir isotherm, suggesting monolayer adsorption, with maximum adsorption capacities of 299.21 ± 2.97–633.12 ± 12.17 mg g⁻¹. Thermodynamic analysis indicated spontaneous and endothermic adsorption, with enthalpy values of 20.81–27.71 kJ mol⁻¹ and positive entropy changes. Adsorption efficiency increased with increasing solution pH and adsorbent dosage. Post-adsorption FTIR spectra showed peak shifts and new bands, confirming surface functional group involvement in dye binding. Despite the low surface area, high adsorption performance was attributed to electrostatic attraction, π-π interactions, and hydrogen bonding. Reusability tests showed that the hydrochars retained approximately 85 % of their initial adsorption capacity after four cycles, demonstrating their potential as reusable adsorbents for dye-contaminated wastewater.</div></div>","PeriodicalId":11725,"journal":{"name":"Environmental Technology & Innovation","volume":"41 ","pages":"Article 104731"},"PeriodicalIF":7.1,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145939063","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":"Litter-derived dissolved organic matter promotes the accumulation and transformation of unstable organic matter in mangrove sediments","authors":"Guanglong Zhang ,&nbsp;Yue Ke ,&nbsp;Hanyi Li ,&nbsp;Xilin Xiao ,&nbsp;Jingchun Liu ,&nbsp;Haoliang Lu ,&nbsp;Chongling Yan ,&nbsp;Hualong Hong","doi":"10.1016/j.eti.2025.104723","DOIUrl":"10.1016/j.eti.2025.104723","url":null,"abstract":"<div><div>Plant litter input is a fundamental driver of carbon cycling in mangrove sediments. However, the mechanisms by which litter decomposition simultaneously regulates soil organic carbon (SOC) accumulation and destabilization remain poorly understood, limiting our ability to predict the stability of blue carbon ecosystems. Herein, we conducted litter addition experiments combined with three-dimensional excitation-emission matrix fluorescence spectroscopy, Fourier transform ion cyclotron resonance mass spectrometry and proton nuclear magnetic resonance, to assess dissolved organic carbon transformation and stability during litter decomposition. Our results demonstrate that litter decomposition alters mangrove sediment properties, with a higher decomposition rate observed in summer compared to winter. During summer, litter-driven carbon accumulation increased significantly (from 20 to 40 g kg⁻¹), characterized by high microbial activity and decarboxylation reactions, leading to substantial accumulation of labile components (e.g., CCCH, XCCH) and a net increase in SOC lability. In contrast, winter decomposition favored preservation pathways, such as dealkylation and oxygen addition, resulting in the enrichment of recalcitrant, carboxyl-rich alicyclic molecules. This mechanistic insight resolves the apparent paradox of simultaneous stability and instability, demonstrating that litter input is a critical determinant of blue carbon fate. Our findings underscore the necessity of incorporating these seasonal dynamics and molecular-level pathways into models for accurate carbon accounting and sustainable management of mangrove ecosystems.</div></div>","PeriodicalId":11725,"journal":{"name":"Environmental Technology & Innovation","volume":"41 ","pages":"Article 104723"},"PeriodicalIF":7.1,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145939064","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":"Tailoring antifouling properties of hollow fiber membranes via controlled ZnO nanoparticle reinforcement for real water applications","authors":"Inalmar D. Barbosa Segundo ,&nbsp;Benjamin Gabas ,&nbsp;Antoine Roudiere ,&nbsp;Giovana Boaventura de Oliveira ,&nbsp;Karine Cappuccio de Castro ,&nbsp;Daiana Kotra Deda ,&nbsp;João de Deus Pereira de Moraes Segundo ,&nbsp;Jonathan C. Espíndola ,&nbsp;José C. Mierzwa","doi":"10.1016/j.eti.2025.104700","DOIUrl":"10.1016/j.eti.2025.104700","url":null,"abstract":"<div><div>Hollow fiber membranes are widely applied in water treatment due to their compact design and high surface area-to-volume ratio, yet their practical use is still hindered by fouling and structural instability. Here, we report a tailored approach to overcome these limitations by reinforcing polyethersulfone (PES) membranes with zinc oxide nanoparticles (nano-ZnO) synthesized under controlled precursor and calcination conditions. Among the tested routes, nano-ZnO derived from zinc acetate and calcined at 250 °C for 5 h exhibited exceptional colloidal stability and dispersion in N-methyl-2-pyrrolidone, enabling seamless integration into the membrane matrix. Incorporation of 4 % nano-ZnO yielded hollow fiber membranes with a uniform asymmetric structure, improved hydrophilicity (60.6° contact angle), and enhanced antifouling behavior, reducing flux decline to 48.5 % (vs. 65.9 % for the control). These membranes achieved significant removal of real-water contaminants (28.1 % COD, 93.2 % turbidity, 69.2 % color), demonstrating performance improvements under natural surface water conditions rather than model foulants. Higher nanoparticle loadings (6–8 %) increased surface area but compromised structural integrity, underscoring the critical role of nanoparticle–polymer compatibility. This work highlights a reproducible pathway to engineer fouling-resistant membranes through controlled nanomaterial synthesis and incorporation, advancing the practical deployment of nanocomposite membranes for sustainable water treatment.</div></div>","PeriodicalId":11725,"journal":{"name":"Environmental Technology & Innovation","volume":"41 ","pages":"Article 104700"},"PeriodicalIF":7.1,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145939163","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":"Automated waste classification for smart recycling: A multi-class CNN approach with transfer learning and pre-trained models","authors":"Fatih Gurcan ,&nbsp;Ahmet Soylu","doi":"10.1016/j.eti.2025.104673","DOIUrl":"10.1016/j.eti.2025.104673","url":null,"abstract":"<div><div>This study presents a comparative analysis of pre-trained CNN models using transfer learning for the multi-class classification of recyclable waste. The dataset used is publicly available and comprises 15,150 images belonging to 12 different categories of recyclable household waste: paper, cardboard, biological, metal, plastic, green-glass, brown-glass, white-glass, clothes, shoes, batteries, and trash. The methodology involves implementing 14 different CNN models pre-trained on ImageNet (e.g., ConvNeXt_V1, ResNet50, MobileNet_V3_Large) on this dataset through a transfer learning procedure. In all pre-trained models, only the final classifier layer was trained, while all other layers were kept frozen, utilizing a feature extraction strategy that leverages previously learned visual representations. This approach significantly reduced training time and computational cost, while minimizing the risk of overfitting in scenarios with limited data. Model performance was evaluated using classification metrics such as accuracy, F1-score, precision, and recall, as well as computational efficiency indicators including architectural depth, parameter count, and training time. According to the findings, the ConvNeXt_V1 model achieved the highest performance with a test accuracy of 96.95 %. On the other hand, MobileNet_V2 (93.90 %), MobileNet_V3_Large (93.69 %), MNASNet_1_0 (93.69 %), RegNet_Y_800MF (92.87 %), and SqueezeNet_1_0 (92.10 %) offered shorter training times (ranging from 2856 to 7219 s) and stood out as efficient alternatives for embedded system applications.</div></div>","PeriodicalId":11725,"journal":{"name":"Environmental Technology & Innovation","volume":"41 ","pages":"Article 104673"},"PeriodicalIF":7.1,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145665352","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":"Tamarix chinensis Lour. cultivation drives microbial succession and network reconfiguration in saline-alkali soil restoration","authors":"Zijian Zhang ,&nbsp;Weishuai Wang ,&nbsp;Ruinan Hou ,&nbsp;Changxiong Zhu ,&nbsp;Yali Huang","doi":"10.1016/j.eti.2026.104770","DOIUrl":"10.1016/j.eti.2026.104770","url":null,"abstract":"<div><div>Long-term cultivation of the halophyte as an effective phytoremediation strategy for saline-alkali soils. In this study, soil samples were collected from plots planted with Tamarix chinensis Lour for 5 years (CL5Y), 10 years (CL10Y), and 20 years (CL20Y) at the Experimental Base for Efficient Utilization of Saline-Alkali Land Resources, Chinese Academy of Sciences. An unplanted plot was designated as the control (CK). After two decades of continuous planting, soil total salt content and electrical conductivity decreased by 83.7% and 82.9%, respectively, while key nutrient indicators showed marked increases—organic matter increased by 103.7%, available phosphorus by 986.8%, and alkali-hydrolyzable nitrogen by 127.6%. These substantial shifts collectively indicate a significant improvement in soil quality, with salinity strongly suppressed and fertility substantially enhanced. Soil microbial communities exhibited clear temporal succession in response to planting duration. Short-term (5-year) cultivation significantly enriched functional taxa involved in nitrogen cycling, such as <em>Proteobacteria</em> and <em>Rozellomycota</em>. Medium-term (10-year) planting resulted in peak bacterial α-diversity, with the abundance-based coverage estimator (ACE) index increasing by 20.9%. Long-term (20-year) planting fosters the development of a more complex and robust microbial co-occurrence network. β NTI analysis revealed that deterministic processes increasingly dominated microbial community assembly over time. This study underscores the pivotal role of plant-microbe interactions in mediating soil reclamation, thereby providing a scientific foundation for ecological restoration of saline-alkali lands.</div></div>","PeriodicalId":11725,"journal":{"name":"Environmental Technology & Innovation","volume":"41 ","pages":"Article 104770"},"PeriodicalIF":7.1,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146074112","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}