工业工程最新文献

{"title":"[Effects of different vegetation restoration patterns on soil bacterial community in coastal wetlands following <i>Spartina alterniflora</i> removal].","authors":"Han-Qi Xie, Min-Jie Hu, Jing-Tao Wang, Hao-Yu Liao, Chun-Ya Liu, Jia-Xin Jia, Yi-Jing Wang","doi":"10.13287/j.1001-9332.202609.050","DOIUrl":"https://doi.org/10.13287/j.1001-9332.202609.050","url":null,"abstract":"&lt;p&gt;&lt;p&gt;Vegetation restoration following &lt;i&gt;Spartina alterniflora&lt;/i&gt; removal is critical for restoring ecological functions in coastal wetlands. However, how different restoration patterns influence soil bacterial communities remains insufficiently understood. In this study, we investigated restored wetlands in the Minjiang River Estuary, southeastern China, including salt marshes dominated by &lt;i&gt;Phragmites australis&lt;/i&gt; and &lt;i&gt;Cyperus malaccensis&lt;/i&gt;, and &lt;i&gt;Kandelia obovata&lt;/i&gt; mangroves of two stand ages (6- and 16-year-old), with unrestored wetlands as control. We used high-throughput sequencing to characterize soil bacterial communities and used structural equation modelling (SEM) to identify the key drivers. The results showed that: 1) Vegetation restoration significantly decreased soil pH relative to the unrestored wetland, but without significant differences among the restoration patterns. Soil total carbon (TC) and total nitrogen (TN) contents showed consistent patterns across restoration patterns, followed the order of &lt;i&gt;C. malaccensis&lt;/i&gt; &gt; &lt;i&gt;P. australis&lt;/i&gt; ≈ old-growth mangrove (16-year-old) &gt; unrestored wetland &gt; young mangrove (6-year-old). &lt;i&gt;C. malaccensis&lt;/i&gt; marsh had significantly higher TC and TN than the unrestored wetland. 2) Vegetation restoration generally enhanced soil bacterial richness and diversity. The number of observed species and the Simpson and Shannon indices differed significantly among treatments, whereas the Chao1 index showed no variation. The observed species richness and Simpson and Shannon indices generally followed the order of old-growth mangrove &gt; young mangrove &gt; &lt;i&gt;P. australis&lt;/i&gt; &gt; &lt;i&gt;C. malaccensis&lt;/i&gt; &gt; unrestored wetland. &lt;i&gt;Desulfotomaculum&lt;/i&gt; was the dominant bacterial genus across all restoration types, with a relative abundance of 9.4%-13.9%. The dominant genera in the unrestored wetland included &lt;i&gt;Alkaliimnicola&lt;/i&gt;, &lt;i&gt;Desulfotomaculum&lt;/i&gt;, &lt;i&gt;Myxococcus&lt;/i&gt;, &lt;i&gt;Pseudomonas&lt;/i&gt;, and &lt;i&gt;Thioalkalivibrio&lt;/i&gt;, with relative abundances of 7.2%, 9.4%, 5.6%, 7.5%, and 5.3%, respectively. Following vegetation restoration, the relative abundances of &lt;i&gt;Desulfotomaculum&lt;/i&gt; and &lt;i&gt;Myxococcus&lt;/i&gt; increased by 2.5%-4.5% and 2.6%-4.6%, respectively, whereas those of &lt;i&gt;Alkaliimnicola&lt;/i&gt; and &lt;i&gt;Pseudomonas&lt;/i&gt; decreased by 3.6%-4.6% and 3.0%-5.5%, respectively. In addition, &lt;i&gt;Thioalkalivibrio&lt;/i&gt; and &lt;i&gt;Pseudomonas&lt;/i&gt; were more abundant in mangrove wetlands than in salt marshes, whereas &lt;i&gt;Rubrobacter&lt;/i&gt; showed the opposite pattern. 3) Soil TC, TN, and microbial biomass nitrogen were key environmental factors associated with the shifts in bacterial community structure. Structural equation modeling further revealed that vegetation restoration primarily altered soil physicochemical conditions, which indirectly drove changes in bacterial diversity and community structure by altering nutrient availability. These findings demonstrated that vegetation restoration after &lt;i&gt;S. alterniflora&lt;/i&gt; removal ","PeriodicalId":35942,"journal":{"name":"应用生态学报","volume":"37 9","pages":"3205-3214"},"PeriodicalIF":0.0,"publicationDate":"2026-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149169620","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A Biomimetic Strategy for Enamel Surface Repair: Mineralisation Induced by Small Organic Molecules","authors":"Zhenni Liu,&nbsp;Dan Li,&nbsp;Chengdong Zhang,&nbsp;Yonglin Xie,&nbsp;Dongqin Xiao","doi":"10.1049/bsb2.70030","DOIUrl":"https://doi.org/10.1049/bsb2.70030","url":null,"abstract":"<p>The demineralisation of dental hard tissues, characterised by the breakdown of functional surface barriers (e.g., enamel crystals and dentin collagen-mineral interface), is the core pathology of caries and erosion. Although conventional treatments, such as fluoride and resin-based restorations, are prevalent, they are hampered by a narrow therapeutic window, the risk of fluorosis and the inability to achieve true biological regeneration. In response, biomimetic remineralisation strategies have emerged, focusing on functionally reconstructing these natural barriers rather than mere mineral deposition. This review highlights how small organic molecules (SOMs) pioneer this paradigm shift: amino acids direct hydroxyapatite (HAp) crystallisation via electrostatic guidance; biomimetic peptides orchestrate ordered assembly and polyphenols synergistically cross-link collagen, exert antibacterial effects and promote mineralisation. Furthermore, molecules, such as citrate, enable intrafibrillar mineralisation, restoring the mechanical integrity of dentin. Collectively, these molecule-regulated biomimetic materials represent a promising frontier, advancing dental repair from passive replacement towards active functional regeneration.</p>","PeriodicalId":52235,"journal":{"name":"Biosurface and Biotribology","volume":"12 1","pages":""},"PeriodicalIF":1.7,"publicationDate":"2026-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/bsb2.70030","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148994583","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Comparative Study of CaHA/PLGA Composite In Vivo Metabolism and Tissue Regeneration Performance With Commercially Available Soft Tissue Fillers","authors":"Lili Cao,&nbsp;Dongbiao Chang,&nbsp;Hong Yang,&nbsp;Ruiyu Lin,&nbsp;Yi Wang,&nbsp;Feilun Ye,&nbsp;Jie Weng","doi":"10.1049/bsb2.70028","DOIUrl":"https://doi.org/10.1049/bsb2.70028","url":null,"abstract":"<p>With an increase of living standards and ageing population, people have developed an urgent need for facial skin rejuvenation. Therefore, different types of facial beauty and plastic surgery products are constantly emerging, each with its own characteristics. Among them, the materials that stimulate collagen regeneration mainly include Loviselle, FEILIPULI, PLGA and others. In order to better leverage the advantages of CaHA and PLGA, this study used a unique composite process to combine the two to produce CaHA/PLGA composite materials, which was then compared with Loviselle, FEILIPULI, PLGA. These investigations included systematic evaluation of their degradation, biocompatibility and collagen regeneration capabilities, elucidating their immunomodulatory mechanisms. The experimental results showed the synthesised CaHA/PLGA composite exhibited uniform microsphere morphology (20–45 μm), excellent rheological properties, and injectability. In vitro, all materials were noncytotoxic and promoted L929 fibroblast proliferation. In vivo rat subcutaneous implantation demonstrated that CaHA incorporation significantly decelerated PLGA degradation, enhancing composite stability. Histopathological analysis revealed minimal inflammation with the CaHA/PLGA composite, leading to advanced tissue repair and morphology closely resembling normal subcutaneous tissue at 6 months. Quantitative analysis showed that the CaHA/PLGA composite induced the highest volume of orderly arranged collagen, with robust host integration. Immunofluorescence indicated that this composite significantly upregulated type I/III collagen and TGF-β1 expression, suggesting an efficient, organised tissue regeneration process via local immune microenvironment modulation. In conclusion, the CaHA/PLGA composite shows superior performance in controlled degradation, biocompatibility, collagen regenerative efficacy and immunomodulation. This positions it as a promising long-lasting soft tissue filler.</p>","PeriodicalId":52235,"journal":{"name":"Biosurface and Biotribology","volume":"12 1","pages":""},"PeriodicalIF":1.7,"publicationDate":"2026-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/bsb2.70028","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148994138","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Research Progress on Semantic Segmentation in Lumbar Degenerative Diseases.","authors":"Yu-Tong Ji, Chuan-Tao Wang, Hai-Liang Xia, Ji-Liang Zhai","doi":"10.3881/j.issn.1000-503X.17187","DOIUrl":"https://doi.org/10.3881/j.issn.1000-503X.17187","url":null,"abstract":"<p><p>With the continuous advancement of medical imaging technologies,deep learning-based semantic segmentation has emerged as a key methodology in medical image analysis,achieving substantial progress in recent years.In particular,these techniques have demonstrated remarkable effectiveness in the automated identification and segmentation of lumbar spine-related diseases.This review provides a comprehensive overview of widely used deep learning-based semantic segmentation methods and systematically summarizes their recent applications in intervertebral disc segmentation,detection and classification of lumbar degenerative disorders,and quantitative analysis of lumbar intervertebral discs.Furthermore,the major challenges associated with current approaches in clinical and practical settings are discussed,and potential directions for future research and methodological improvements are highlighted.</p>","PeriodicalId":6919,"journal":{"name":"中国医学科学院学报","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2026-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148962782","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Recent advances in AI-driven deep eutectic solvent design for biocatalysis: Co-design of extremozyme and reaction medium.","authors":"Yuxuan Hou, Jinyu Meng, Binghui Chen, Jifeng Yuan, Shizhen Wang","doi":"10.1016/j.bidere.2026.100109","DOIUrl":"https://doi.org/10.1016/j.bidere.2026.100109","url":null,"abstract":"<p><p>Deep eutectic solvents (DES) have emerged as sustainable, highly tunable alternatives to conventional organic media for non-aqueous biocatalysis. DES dynamically interact with enzymes to shift reaction equilibria, enhance thermostability and tailor stereoselectivity. However, the vast combinatorial space and complex physicochemical properties of DES make traditional trial-and-error solvent engineering highly inefficient. This review systematically examines recent advancements in DES-driven biocatalysis and highlights the role of artificial intelligence (AI) for rational DES design. Specifically, it synthesizes evidence that DES composition and water content jointly shape enzyme-specific microenvironments and thereby affect catalytic performance. Extremozymes are also evaluated as candidate catalysts for DES-containing media and as sources of potentially transferable adaptation features for enzyme engineering. It then discusses how AI can support DES formation screening, prediction of physicochemical properties using quantitative structure-property relationship (QSPR) models, and candidate formulation generation at the solvent level. At the system level, the focus shifts to predicting how a specific enzyme responds to a defined formulation in terms of activity and stability. Finally, we outline a mechanistically informed, multi-objective framework that integrates DES composition, enzyme sequence and structure, and operating conditions with physicochemical calculations, AI-based prediction, and experimental validation, providing a practical route toward genuine DES-enzyme co-design.</p>","PeriodicalId":56832,"journal":{"name":"生物设计研究(英文)","volume":"8 3","pages":"100109"},"PeriodicalIF":7.2,"publicationDate":"2026-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13634743/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149119293","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Breeding of <i>Serratia marcescens</i> GEN-M54 for high prodigiosin yield via two-step light fermentation.","authors":"Jingxiang Sun, Yongxiang Cui, Feng Guo, Yujia Jiang, Wenming Zhang, Wankui Jiang, Fengxue Xin, Min Jiang","doi":"10.1016/j.bidere.2026.100110","DOIUrl":"https://doi.org/10.1016/j.bidere.2026.100110","url":null,"abstract":"<p><p>Prodigiosin is a tripyrrole-based microbial pigment that exhibits diverse biological activities, including antioxidant, antimicrobial, and anticancer properties. Moreover, it possesses excellent color fastness and dye uptake, making it a promising candidate in medicine, cosmetics and dye industries. In this study, the high-prodigiosin-producing mutant <i>Serratia marcescens</i> strain GEN-M54 was obtained through sequential physical and chemical mutagenesis. The effect of light on the prodigiosin production was investigated, and a two-step sequential light fermentation strategy was developed to promote the prodigiosin accumulation. Additionally, gene transcription analysis was conducted to elucidate changes in the metabolic flux of prodigiosin precursor synthesis under red-light stress conditions. Finally, a prodigiosin production of 6623.1 mg/L and a content of 471.4 mg/g were achieved through the two-step fermentation strategy, representing an increase of 77.1% and 46.8%, respectively. Overall, this study provides an efficient microbial platform and an efficient fermentation strategy for future prodigiosin production.</p>","PeriodicalId":56832,"journal":{"name":"生物设计研究(英文)","volume":"8 3","pages":"100110"},"PeriodicalIF":7.2,"publicationDate":"2026-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13631659/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149119276","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"[Effect and Mechanism of New Quality Productive Forces on Green Total Factor Productivity].","authors":"Peng Zhang, Xiao-Yu Shi, Li-Na Xin, Sheng-Fu Yang","doi":"10.13227/j.hjkx.202506298","DOIUrl":"https://doi.org/10.13227/j.hjkx.202506298","url":null,"abstract":"<p><p>Understanding the effect and mechanism of new quality productive forces （NQPF） on green total factor productivity （GTFP） is crucial for improving regional green development policies and promoting synergy between economic growth and environmental sustainability. Using panel data from 30 provincial-level administrative regions in China from 2012 to 2022， this study employs two-way fixed effects models， mediation effect models， and threshold regression models to systematically investigate the effects， transmission mechanisms， and regional heterogeneity of NQPF on GTFP. The results showed that NQPF significantly enhanced GTFP， and this conclusion remained robust under multiple tests. Technological innovation and resource allocation efficiency served as important mediating channels through which NQPF indirectly enhanced GTFP. When technological innovation or resource allocation efficiency surpassed certain thresholds， the marginal effect of NQPF on GTFP significantly increased， revealing a nonlinear escalation pattern. Moreover， the positive effect varied significantly across regions， being more pronounced in eastern， non-resource-based， and clean energy-dominated provinces， with stronger marginal effects. The findings suggest that future efforts should strengthen the synergy between technological innovation and resource allocation， implement region-specific green development strategies， and improve cross-regional green cooperation mechanisms to jointly enhance NQPF and GTFP， thereby supporting high-quality development.</p>","PeriodicalId":35937,"journal":{"name":"环境科学","volume":"47 9","pages":"6082-6092"},"PeriodicalIF":0.0,"publicationDate":"2026-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149012409","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"[Effect of Biochar Addition on the Microbial Community Structure of Acidic Purple Soils Developed from Different Parent Materials].","authors":"Meng Chen, Jie Lu, Yu-Xi Guo, Juan Huang, Zi-Fang Wang, Wen-Cai Dai, Ming Gao","doi":"10.13227/j.hjkx.202507099","DOIUrl":"https://doi.org/10.13227/j.hjkx.202507099","url":null,"abstract":"&lt;p&gt;&lt;p&gt;Soil microorganisms are central to the material cycle in terrestrial ecosystems， and their community composition， diversity， and stability are key indicators of soil health and sustainability. Due to its unique physicochemical properties， biochar has shown potential advantages in improving acidic purple soils by enhancing soil fertility and regulating soil acidity. To investigate the effects of biochar on the improvement and microbial community structure of acidic purple soils derived from different parent materials， an indoor incubation method was adopted. Four types of acidic purple soils widely distributed in the Sichuan Basin， derived from the Shaximiao Formation， Jiaguan Formation， Penglaitown Formation， and Suining Formation， were selected as research subjects. An equal amount of biochar was added to each soil type， followed by a 63-day indoor incubation. Soil bacterial and fungal communities were measured using indoor analysis and high-throughput sequencing. The study investigated the effects of biochar on available nitrogen， base cations， and the composition and diversity of microbial communities in different acidic purple soils under the same conditions. The results showed that： ①The contents of NO&lt;sub&gt;3&lt;/sub&gt;&lt;sup&gt;-&lt;/sup&gt;-N and base cations increased in all acidic purple soils with biochar addition， while the contents of NH&lt;sub&gt;4&lt;/sub&gt;&lt;sup&gt;+&lt;/sup&gt;-N， exchangeable hydrogen （Q&lt;sub&gt;H&lt;sup&gt;+&lt;/sup&gt;&lt;/sub&gt;）， and exchangeable aluminum （Q&lt;sub&gt;Al&lt;sup&gt;3+&lt;/sup&gt;&lt;/sub&gt;） decreased. ②After biochar application， bacterial &lt;i&gt;α&lt;/i&gt;-diversity was highest in the acidic purple soil from the Suining Formation， while fungal &lt;i&gt;α&lt;/i&gt;-diversity was highest in the acidic purple sandy soil from the Jiaguan Formation. ③After biochar application， the relative abundance of &lt;i&gt;Bacillus&lt;/i&gt; was highest in the acidic purple soil from the Shaximiao Formation， while &lt;i&gt;Sphingomonas&lt;/i&gt; was most enriched in the acidic purple soil from the Suining Formation. In the fungal community， the relative abundance of &lt;i&gt;Chaetomium&lt;/i&gt; was highest in the acidic purple soil from the Shaximiao Formation， and &lt;i&gt;Fusarium&lt;/i&gt; was most enriched in the acidic purple sandy loam from the Penglaitown Formation. Based on microbial network feature analysis， the bacterial network in the acidic purple soil from the Shaximiao Formation was more complex， while the fungal network in the acidic purple sandy loam from the Penglaitown Formation was more complex. ④Correlation and redundancy analyses showed that soil organic matter （SOM） and total nitrogen （TN） were the main factors influencing the bacterial community structure， while the carbon-to-nitrogen ratio （C/N）， SOM， and available phosphorus （AP） were the main factors influencing the fungal community structure.Due to the differences in their material composition and physicochemical properties， the addition of the same amount of biochar resulted in significant variations in the soil microbial community structure among the different acidic purp","PeriodicalId":35937,"journal":{"name":"环境科学","volume":"47 9","pages":"6516-6529"},"PeriodicalIF":0.0,"publicationDate":"2026-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149012506","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"[Prediction of Ecosystem Service Evolution and Trade-off/Synergy Analysis in the Yangtze River Delta Region].","authors":"Wei-Dong Zhang, Bin Dong, Pei-Zhen Zhu, Cong-Ge Peng, Hao Wang, Jian-Shen Qu, Yue-Xia Han","doi":"10.13227/j.hjkx.202505359","DOIUrl":"https://doi.org/10.13227/j.hjkx.202505359","url":null,"abstract":"<p><p>Ecosystem services（ES） play a critical role in the context of high-quality ecological development in the new era. This study focuses on the Yangtze River Delta Region as the study area， employing the InVEST model to assess four key ecosystem services from 1990 to 2020， analyzing their spatiotemporal evolution patterns. Using the geographical detector model， we identify the dominant driving factors behind the spatial heterogeneity of these services. Additionally， GeoDa software is applied to conduct an in-depth analysis of the trade-offs and synergies among different ecosystem services. Finally， the PLUS model is utilized to simulate and predict the spatial distribution patterns of ecosystem services in 2030 under various development scenarios. The results showed： ① From 1990 to 2020， in the Yangtze River Delta Region， carbon storage and habitat quality were generally higher in the south and lower in the north and central areas. Food production， conversely， was higher in the north and lower in the south. Both habitat quality and soil conservation exhibited a distribution pattern with higher values in the south and southwest and lower values in the north. Water yield was primarily concentrated in the mountainous areas of Zhejiang and southern Anhui. ② Topography and elevation were the key factors influencing changes in carbon storage and soil conservation function， and population density was the key factor influencing changes in habitat quality， while annual precipitation was the primary driver influencing changes in water yield. Apart from topographic factors， precipitation and population density were the key factors influencing grain production. ③ Compared to the baseline year of 2020， the study area exhibited the following changes in ecosystem services under different scenarios： Under the natural development scenario， water yield and habitat quality increased， while carbon storage and soil retention decreased. Under the ecological protection scenario， carbon storage， water yield， and habitat quality all showed improvement. Finally， under the cropland protection scenario， carbon storage and soil retention increased， whereas water yield and habitat quality declined. This study provides valuable insights into the complex dynamics of ecosystem services in rapidly urbanizing regions， offering a scientific basis for regional ecological planning and sustainable development strategies.</p>","PeriodicalId":35937,"journal":{"name":"环境科学","volume":"47 9","pages":"6353-6364"},"PeriodicalIF":0.0,"publicationDate":"2026-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149012911","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"[Spatio-temporal Pattern and Mechanisms of Digital Ecological Civilization Construction in China].","authors":"Xian-Feng Han, Ya-Nan Gou","doi":"10.13227/j.hjkx.202507103","DOIUrl":"https://doi.org/10.13227/j.hjkx.202507103","url":null,"abstract":"<p><p>Scientific understanding of the construction level， spatial and temporal patterns， and mechanisms of digital ecological civilization is of great significance for the country to accelerate the construction of a green and intelligent digital ecological civilization （DEC） under the new development pattern. This study， based on panel data from 282 prefecture-level cities in China from 2011 to 2022， employed the Dagum Gini Coefficient， Gaussian kernel density estimation， club convergence test， and the quadratic assignment procedure to analyze the construction level， spatio-temporal pattern， and mechanisms of DEC. The findings reveal： ① Although the comprehensive index of China's DEC construction level and its subsystem indices remained relatively low， they showed a steady upward trend. ② Significant regional differences existed in the construction level of DEC across the nation and within the eight major economic zones. The main source of differences was hyper-variation density， with inter-regional differences playing a secondary role， and intra-regional differences having the minimal effect. ③ While maintaining certain commonalities， the national and eight economic zones' kernel density distribution curves also exhibited obvious regionally differentiated characteristics. During the sample period， the level of DEC construction nationwide and across regions exhibited an upward trend， with widening regional gaps. Except for in the northwest region， polarization phenomena existed nationwide and in other regions. ④ Urban DEC construction remained imbalanced， and cities showed significant spatial differentiation. Across the nation and within the eight major economic zones， high-level city clusters led a gradient development pattern， and other cities continually caught up. ⑤ The basic conditions， construction support， and construction effectiveness of DEC all had significant positive impacts on differences in digital ecological civilization construction， with construction effectiveness having the largest impact coefficient， making it the primary source of differences. Additionally， enhancing the spatial coordination in urban development and st rengthening differentiated financial services helped narrow regional differences in digital ecological civilization construction. Notably， various driving factors exhibited significant heterogeneity across different comprehensive economic zones. This study provides important insights for effectively advancing DEC construction. The government should fully leverage the demonstrative and leading role of high-performing regions， guide different regions to explore differentiated paths for DEC construction based on their unique characteristics， and implement gradient-based policy support according to the development stages of different regions.</p>","PeriodicalId":35937,"journal":{"name":"环境科学","volume":"47 9","pages":"6405-6421"},"PeriodicalIF":0.0,"publicationDate":"2026-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149012923","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}