Journal of Environmental Management最新文献

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Optimizing automated compliance checking with ontology-enhanced natural language processing: Case in the fire safety domain. 利用本体增强型自然语言处理优化自动合规性检查:消防安全领域的案例。
IF 8 2区 环境科学与生态学
Journal of Environmental Management Pub Date : 2024-11-14 DOI: 10.1016/j.jenvman.2024.123320
Yian Chen, Huixian Jiang
{"title":"Optimizing automated compliance checking with ontology-enhanced natural language processing: Case in the fire safety domain.","authors":"Yian Chen, Huixian Jiang","doi":"10.1016/j.jenvman.2024.123320","DOIUrl":"https://doi.org/10.1016/j.jenvman.2024.123320","url":null,"abstract":"<p><p>The fire safety compliance checking (FSCC) plays a crucial role in ensuring the quality of fire engineering design and eliminating inherent fire hazards. It requires an objective and rational interpretation of fire regulations. However, the texts of fire regulations are filled with numerous rules related to spatial limitations, which pose a significant challenge in interpreting them. The current method of interpreting these rules mostly relies on manual translation, which is not efficient. To address this issue, this study proposes an innovative automated framework for interpreting rules by combining ontology technology with natural language processing (NLP). Through the utilization of pre-trained language models (PLMs), concepts and relationships are extracted from sentences, a domain-specific ontology is established, spatial knowledge is transformed into language-agnostic tree structures based on the ontology, and the semantic components of spatial relationships are extracted. The tree structure is then mapped to logical clauses based on semantic consistency, thereby improving the efficiency of interpretation. Experimental results demonstrate that the architecture achieves an F1 score of 86.27 for entity extraction and 81.81 for spatial relationship joint extraction tasks, with an accuracy of 96.26% in the formalization of logical rules, highlighting its proficiency in automatically interpreting fire spatial rules. This study offers technical support to enhance public understanding of fire safety management and fire prevention predictions, thereby promoting the intelligent management of the building safety environment.</p>","PeriodicalId":356,"journal":{"name":"Journal of Environmental Management","volume":"371 ","pages":"123320"},"PeriodicalIF":8.0,"publicationDate":"2024-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142638142","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}
引用次数: 0
Reforestation of tropical rainforests as a negative emissions technology in Malaysia: An environmental and economic sustainability assessment. 在马来西亚将热带雨林再造林作为一种负排放技术:环境和经济可持续性评估。
IF 8 2区 环境科学与生态学
Journal of Environmental Management Pub Date : 2024-11-14 DOI: 10.1016/j.jenvman.2024.123250
Djasmine Mastisya Saharudin, Harish Kumar Jeswani, Adisa Azapagic
{"title":"Reforestation of tropical rainforests as a negative emissions technology in Malaysia: An environmental and economic sustainability assessment.","authors":"Djasmine Mastisya Saharudin, Harish Kumar Jeswani, Adisa Azapagic","doi":"10.1016/j.jenvman.2024.123250","DOIUrl":"https://doi.org/10.1016/j.jenvman.2024.123250","url":null,"abstract":"<p><p>Forest carbon sequestration is a promising negative emissions technology as it is relatively simple and inexpensive. Its potential for climate mitigation could be particularly high in tropical rainforests as they can store more carbon at a faster rate. However, the understanding of its sustainability is limited due to the scarcity of studies. Focusing on reforestation, this work is the first to present an extensive environmental and economic assessment of forest CO<sub>2</sub> sequestration in a tropical rainforest country such as Malaysia. Life cycle assessment (LCA) and life cycle costing (LCC) are combined to evaluate the sustainability of reforestation with four tropical tree species: keruing (Dipterocarpus spp.), meranti (Shorea leprosula), rubber (Hevea brasiliensis) and kapok (Ceiba Pentandra). Considering the horizon of 60 years, the system boundaries comprise site infrastructure, land clearing, tree planting and growing, and forest management. The dynamics of greenhouse gas (GHG) and other air emissions are also considered over the period, including carbon sequestration and land use change, nitrous oxide and ethylene emissions. All tree species lead to a net-negative GHG emissions, ranging from -558 to -808 kg CO<sub>2</sub> eq./t CO<sub>2</sub> removed, with kapok having the highest and rubber the lowest sequestration potential. The latter has the highest values in 13 other impact categories considered, while keruing is the best option for 12 impacts. The main environmental hotspot for all species is the forest management stage. The LCC range from -US$17 to US$12/t CO<sub>2</sub> removed. Reforestation on lands available in Malaysia could remove 105.9-473.3 Mt CO<sub>2</sub> over 60 years, or 1.8-7.9 Mt CO<sub>2</sub>/yr, equivalent to 7.4-33 % of the agricultural emissions. Rubber and kapok could generate US$640 M and US$8.06 bn in profits over 60 years from latex and fibre, respectively. Therefore, reforestation has a significant potential to help tropical countries, such as Malaysia, achieve net-negative emissions, while at the same time boosting the economy.</p>","PeriodicalId":356,"journal":{"name":"Journal of Environmental Management","volume":"371 ","pages":"123250"},"PeriodicalIF":8.0,"publicationDate":"2024-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142638143","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}
引用次数: 0
Trade-offs between Cd bioconcentration and translocation and underlying physiological and rhizobacterial mechanisms in Phragmites australis. 褐藻中镉的生物浓缩和迁移之间的权衡及其潜在的生理机制和根瘤菌机制。
IF 8 2区 环境科学与生态学
Journal of Environmental Management Pub Date : 2024-11-13 DOI: 10.1016/j.jenvman.2024.123291
Meiqi Yin, Xiya Zhang, Hong Zhu, Wenyi Sheng, Yiming Wu, Dongzi Jiang, Qishen Wen, Hongjin Shao, Yaolin Guo, Cui Wang, Luyao Ma, Xiaona Yu, Hans Brix, Lele Liu, Weihua Guo
{"title":"Trade-offs between Cd bioconcentration and translocation and underlying physiological and rhizobacterial mechanisms in Phragmites australis.","authors":"Meiqi Yin, Xiya Zhang, Hong Zhu, Wenyi Sheng, Yiming Wu, Dongzi Jiang, Qishen Wen, Hongjin Shao, Yaolin Guo, Cui Wang, Luyao Ma, Xiaona Yu, Hans Brix, Lele Liu, Weihua Guo","doi":"10.1016/j.jenvman.2024.123291","DOIUrl":"https://doi.org/10.1016/j.jenvman.2024.123291","url":null,"abstract":"<p><p>Cadmium (Cd) pollution poses a significant threat to wetland ecosystems. Phragmites australis, a species with intraspecific ploidy diversity, is commonly used in constructed wetlands for pollution remediation. However, little is known about how the ploidy variation of P. australis influences the phytoremediation processes via physiological and rhizosphere regulations. Here, we used P. australis from two major lineages in China (i.e., tetraploid lineage O and octoploid lineage P) and applied three Cd treatments (control, low Cd concentration, and high Cd concentration). We found that the lineage O had a bioconcentration factor of Cd approximately 40% higher than that of the lineage P. The translocation factor of the lineage P was about 300% higher than that of the lineage O. These suggest that the lower ploidy lineage exhibited a greater capacity to absorb Cd from the environment into the underground part compared to the higher ploidy lineage, and the higher ploidy lineage demonstrated a superior ability in transferring Cd from the underground to the aboveground part. The advanced transpiration system in the higher ploidy lineage can contribute to its enhanced ability to translocate Cd, as the translocation factor of Cd was significantly correlated with the base shoot diameter and the transpiration rate, both notably higher in the lineage P. The rhizobacterial community associated with the lineage P displayed a more intense response to Cd, characterized by an increase in both the diversity of the community and the number of varied bacterial functions following the addition of Cd. Our study offers profound insights into the ecological consequences of intraspecific polyploidization and the application of intraspecific ploidy variation in environmental management and wetland restoration.</p>","PeriodicalId":356,"journal":{"name":"Journal of Environmental Management","volume":"371 ","pages":"123291"},"PeriodicalIF":8.0,"publicationDate":"2024-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142611306","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}
引用次数: 0
Critical role of soil-applied molybdenum dioxide composite biochar material in enhancing Cr(VI) remediation process: The driver of Fe(III)/Fe(II) redox cycle. 土壤施用二氧化钼复合生物炭材料在增强六价铬修复过程中的关键作用:铁(III)/铁(II)氧化还原循环的驱动力。
IF 8 2区 环境科学与生态学
Journal of Environmental Management Pub Date : 2024-11-13 DOI: 10.1016/j.jenvman.2024.123246
Mingxuan Liu, Heng Li, Qiang Fu, Tianxiao Li, Renjie Hou, Ping Xue, Xuechen Yang, Mo Li, Dong Liu
{"title":"Critical role of soil-applied molybdenum dioxide composite biochar material in enhancing Cr(VI) remediation process: The driver of Fe(III)/Fe(II) redox cycle.","authors":"Mingxuan Liu, Heng Li, Qiang Fu, Tianxiao Li, Renjie Hou, Ping Xue, Xuechen Yang, Mo Li, Dong Liu","doi":"10.1016/j.jenvman.2024.123246","DOIUrl":"https://doi.org/10.1016/j.jenvman.2024.123246","url":null,"abstract":"<p><p>Heavy metal contamination of agricultural land due to sewage irrigation, over-application of fertilizers and pesticides, and industrial activities. Biochar, due to its rich functional groups and excellent electrochemical performance, is used for the remediation of heavy metal-contaminated farmland. However, the remediation mechanism remains uncertain due to the influence of minerals and multi-element composite pollution on soil. Therefore, introducing transition metal oxide MoO<sub>2</sub> to prepare biochar composite remediation materials enhances the adsorption and reduction of soil Cr (Ⅵ). This study compared the differences in Cr (Ⅵ) improvement under different pollution systems and pH conditions and explored the potential mechanism of Fe (Ⅲ)/Fe (Ⅱ) redox cycling in Cr (Ⅵ) remediation. The results showed that both biochar MoO<sub>2</sub> ball-milling composite (BC + M) and biochar-loaded MoO<sub>2</sub> (BC/M) retained the original biochar (BC) remediation method for Cr (Ⅵ). Among them, the remediation of BC/M was the most stable, with the maximum remediation value ranging from approximately 6.52 to 58.58 mg/kg. In different pollution systems, Cd and Pb exhibited competitive adsorption toward Cr (Ⅵ), but they enhanced Cr (Ⅵ) remediation by promoting adsorption and self-complexation. In acidic conditions (pH = 4), BC/M showed the best remediation effect, with a reduction kinetic constant of 34.61 × 10<sup>-3</sup> S<sup>-1</sup> and a maximum adsorption capacity of 61.64 mg/g. Fe (Ⅲ)/Fe (Ⅱ) redox cycling accelerated the reduction of Cr (Ⅵ) (R<sup>2</sup> = 0.81), and MoO<sub>2</sub> promoted the Fe (Ⅲ)/Fe (Ⅱ) redox cycle. BC/M enhanced the Fe (Ⅱ) formation efficiency by 66.39% and 71.81% compared to BC + M and BC at pH = 4. The introduction of MoO<sub>2</sub> and biochar composite materials enhanced the reduction process of Cr (Ⅵ), with BC/M achieving the optimal remediation level. This study reveals the potential mechanisms of MoO<sub>2</sub> and biochar composite materials in soil Cr (Ⅵ) remediation, providing a reference and insight for the preparation of Cr (Ⅵ) remediation materials and the treatment of contaminated farmland.</p>","PeriodicalId":356,"journal":{"name":"Journal of Environmental Management","volume":"371 ","pages":"123246"},"PeriodicalIF":8.0,"publicationDate":"2024-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142611236","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}
引用次数: 0
Activated carbon seed technologies: Innovative solutions to assist in the restoration and revegetation of invaded drylands. 活性炭种子技术:协助受入侵旱地恢复和重新植被的创新解决方案。
IF 8 2区 环境科学与生态学
Journal of Environmental Management Pub Date : 2024-11-13 DOI: 10.1016/j.jenvman.2024.123281
Kirk W Davies, Danielle R Clenet, Matthew D Madsen, Vanessa S Brown, Alison L Ritchie, Lauren N Svejcar
{"title":"Activated carbon seed technologies: Innovative solutions to assist in the restoration and revegetation of invaded drylands.","authors":"Kirk W Davies, Danielle R Clenet, Matthew D Madsen, Vanessa S Brown, Alison L Ritchie, Lauren N Svejcar","doi":"10.1016/j.jenvman.2024.123281","DOIUrl":"https://doi.org/10.1016/j.jenvman.2024.123281","url":null,"abstract":"<p><p>The demand for seed-based restoration and revegetation of degraded drylands has intensified with increased disturbance and climate change. Invasive plants often hinder the establishment of seeded species; thus, they are routinely controlled with herbicides. Herbicides used to control invasive plants may maintain soil activity and cause non-target damage to seeded species. Activated carbon (AC), which has a high adsorption of many herbicides, has been incorporated into seed pellets and coatings (seed technologies) to limit herbicide damage. Though various AC seed technologies have been examined in numerous laboratory and field studies, questions remain regarding their effectiveness and how to improve it, and what causes variation in results. We synthesized the literature on AC seed technologies for dryland restoration and revegetation to attempt to answer these questions. AC pellets compared to seed coatings were more thoroughly tested in the field and generally provide strong herbicide protection. However, greater amounts of AC in seed coatings appear to increase their effectiveness. Seed coatings show more potential for use than pellets because they are less logistically challenging to use compared to pellets, but need more field testing and refinement. Results often differ between laboratory and field studies, suggesting that field studies are critical in determining realized effects. However, seedling establishment failures from other barriers make it challenging to evaluate the effectiveness of AC seed technologies in the field. AC seed technologies are an innovative tool that with continued refinement, especially if other barriers to seedling establishment can be overcome, may improve the restoration and revegetation of degraded drylands.</p>","PeriodicalId":356,"journal":{"name":"Journal of Environmental Management","volume":"371 ","pages":"123281"},"PeriodicalIF":8.0,"publicationDate":"2024-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142611136","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}
引用次数: 0
Emerging antibiotic and heavy metal resistance in spore-forming bacteria from pig manure, manure slurry and fertilized soil. 猪粪、粪便泥浆和肥沃土壤中孢子形成菌新出现的抗生素和重金属抗药性。
IF 8 2区 环境科学与生态学
Journal of Environmental Management Pub Date : 2024-11-13 DOI: 10.1016/j.jenvman.2024.123270
Min Yan, Wen Wang, Lei Jin, Guoyou Deng, Xinfeng Han, Xiumei Yu, Junni Tang, Xiangan Han, Menggen Ma, Lin Ji, Ke Zhao, Likou Zou
{"title":"Emerging antibiotic and heavy metal resistance in spore-forming bacteria from pig manure, manure slurry and fertilized soil.","authors":"Min Yan, Wen Wang, Lei Jin, Guoyou Deng, Xinfeng Han, Xiumei Yu, Junni Tang, Xiangan Han, Menggen Ma, Lin Ji, Ke Zhao, Likou Zou","doi":"10.1016/j.jenvman.2024.123270","DOIUrl":"https://doi.org/10.1016/j.jenvman.2024.123270","url":null,"abstract":"<p><p>Spore-forming bacteria (SFB), like Bacillus, are the gram-positive bacteria with broad-spectrum activity that is one of the commonly used strains of probiotics. However, these bacteria also have significant resistance. In this study, we systematically investigated pig manure, manure slurry and soil by 16S rRNA high-throughput sequencing and traditional culture techniques. We found the SFB was widespread in manure, manure slurry and soil, Firmicutes was one of the main dominant phyla in pig manure, manure slurry and soil, the relative abundance of Bacillus were 0.98%, 0.01%, and 2.57%, respectively, and metals such as copper have complex relationships with bacteria. We isolated 504 SFB from 369 samples, with the highest number identified as Bacillus subtilis. SFB strains showed varying degrees of antibiotic resistance; the greatest against erythromycin, followed by imipenem. The MICs of SFB varied greatly against different heavy metals; with high (est) resistance against Zn<sup>2+</sup>, followed by Cu<sup>2+</sup>. Second-generation whole genome sequencing (WGS) revealed that nine Bacillus strains carried different subtypes of vancomycin resistance genes, among which vanRM had the highest frequency. The strain W129 included the vanRA-vanRM-vanSA-vanZF cluster. The nine Bacillus strains also contained antibiotic genes such as aminoglycoside (ant(9)-Ia), β-lactam (bcII), and macrolide (msrE). Twenty-six Bacillus isolates carried copper resistance clusters, including csoR-copZ, copA-copZ-csoR, and copZ-copA. WGS showed that strain W166 carried 11 vancomycin resistance genes and 11 copper resistance genes. There were 4 vancomycin resistance genes and 14 copper resistance genes on the W129 chromosome. Strain W129 also harbors the plasmid pLKYM01 that contains an intact transposon consisting of insertion sequence and vancomycin resistance genes vanYF and vanRA. This study explores the potential risks of using pig manure and fertilized soil to inform safe and effective use of probiotics in agriculture. It highlights scientific evidence for concern over the safe utilization and control of animal waste products.</p>","PeriodicalId":356,"journal":{"name":"Journal of Environmental Management","volume":"371 ","pages":"123270"},"PeriodicalIF":8.0,"publicationDate":"2024-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142611142","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}
引用次数: 0
Empowering sustainability: How digital agricultural extensions influence organic fertilizer choices among Chinese farmers. 增强可持续性:数字农业推广如何影响中国农民的有机肥选择。
IF 8 2区 环境科学与生态学
Journal of Environmental Management Pub Date : 2024-11-13 DOI: 10.1016/j.jenvman.2024.123340
Lin Li, Jiliang Han, Yuchun Zhu
{"title":"Empowering sustainability: How digital agricultural extensions influence organic fertilizer choices among Chinese farmers.","authors":"Lin Li, Jiliang Han, Yuchun Zhu","doi":"10.1016/j.jenvman.2024.123340","DOIUrl":"https://doi.org/10.1016/j.jenvman.2024.123340","url":null,"abstract":"<p><p>The adoption of organic fertilizers is crucial for improving sustainable agricultural development in China. Digital agricultural extensions offer personalized guidance to farmers, delivering these services more cost-effectively and rapidly. This paper, conducted in Shaanxi Province with a total of 495 kiwifruit farmers, employs an endogenous switching regression model to empirically examine the influence of digital agricultural extensions on the purchasing behaviors associated with organic fertilizers. The findings reveal three key insights. First, digital agricultural extensions significantly boost the likelihood of farmers purchasing organic fertilizers. Second, public welfare digital extensions have a more pronounced effect on these purchasing behaviors compared to those driven by profit motives. Finally, digital agriculture extensions facilitate organic fertilizer adoption by enhancing ecological literacy and broadening information channels. Based on these findings, the government is recommended to robustly support digital agricultural extensions, develop a supply system prioritizing public welfare with profit-driven approaches as supplementary, to encourage the adoption of organic fertilizers.</p>","PeriodicalId":356,"journal":{"name":"Journal of Environmental Management","volume":"371 ","pages":"123340"},"PeriodicalIF":8.0,"publicationDate":"2024-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142611286","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}
引用次数: 0
Long-term effects of thinning on soil organic carbon fractions and carbon pool management indices in secondary forests of heavily burned areas. 疏伐对重度烧毁地区次生林土壤有机碳组分和碳库管理指数的长期影响。
IF 8 2区 环境科学与生态学
Journal of Environmental Management Pub Date : 2024-11-13 DOI: 10.1016/j.jenvman.2024.123273
Haixing Li, Xiuling Man, Tijiu Cai
{"title":"Long-term effects of thinning on soil organic carbon fractions and carbon pool management indices in secondary forests of heavily burned areas.","authors":"Haixing Li, Xiuling Man, Tijiu Cai","doi":"10.1016/j.jenvman.2024.123273","DOIUrl":"https://doi.org/10.1016/j.jenvman.2024.123273","url":null,"abstract":"<p><p>Despite decades of recovery, soil carbon in heavily burned areas has failed to reach pre-fire levels. It is unclear whether stand management practices can promote soil organic carbon accumulation at such sites. This study evaluated the changes in soil labile organic carbon (LOC) fractions (including dissolved organic carbon (DOC), microbial biomass carbon (MBC), and easily oxidizable organic carbon (EOC)) and the carbon pool management index (CPMI) after the thinning of a heavily burned area in the Daxing'an Mountains and selected sample plots. This study compared thinned birch secondary forests (17 years (17a-S), 14 years (14a-U), 2 years (2a-S) post-thinning, where 17a-S and 2a-S were strip thinned and 14a-U was uniform thinned) with unthinned control (CK) plots. The contents of soil LOC and CPMI at a depth of 0-10 cm were found to increase with thinning, indicating that thinning promoted the accumulation of soil organic carbon in secondary forests in heavily burned areas. The two-way ANOVA showed that the differences in C fractions and CPMI at different times after thinning were significant, whereas the differences between thinning methods were not significant. In comparison to CK, only the DOC content was found to be significantly elevated at 2a-S. However, at both 14a-U and 17a-S, the elevation of the LOC fraction content reached a significant level. Among them, 14a-U demonstrated the most pronounced improvement (DOC (+11.37%), MBC (+42.80%), and EOC (+19.51%)). The CPMI at the 0-10 cm depth also increased significantly (18.20% ∼ 27.77%) at 14a-U. The study revealed that soil bulk density and understorey vegetation biomass were the main influences on the changes in soil LOC fractions and CPMI post-thinning. This finding also indicates that greater attention should be given not only to the soil itself but also to the understorey vegetation during forest soil carbon restoration under conservation management.</p>","PeriodicalId":356,"journal":{"name":"Journal of Environmental Management","volume":"371 ","pages":"123273"},"PeriodicalIF":8.0,"publicationDate":"2024-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142611476","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}
引用次数: 0
Low- and zero-cement frozen backfill within permafrost mining conditions: A review. 永冻土采矿条件下的低水泥和零水泥冷冻回填:综述。
IF 8 2区 环境科学与生态学
Journal of Environmental Management Pub Date : 2024-11-13 DOI: 10.1016/j.jenvman.2024.123335
Fatemeh Tavanaei Sereshgi, Ferri Hassani, Alessandro Navarra, Agus Sasmito, Mehrdad Fadaei Kermani
{"title":"Low- and zero-cement frozen backfill within permafrost mining conditions: A review.","authors":"Fatemeh Tavanaei Sereshgi, Ferri Hassani, Alessandro Navarra, Agus Sasmito, Mehrdad Fadaei Kermani","doi":"10.1016/j.jenvman.2024.123335","DOIUrl":"https://doi.org/10.1016/j.jenvman.2024.123335","url":null,"abstract":"<p><p>This review examines the emerging field of unconventional backfilling methods in freezing conditions, specifically tailored for remote mining operations in permafrost regions. Meeting the demand for mineral resources while addressing environmental concerns necessitates innovative approaches in mineral production and mining operations. This review aims to give a very first catalog of novel unconventional backfills in freezing conditions which is being encountered in remote mining areas like permafrost regions. As mining expands into these challenging environments, logistical obstacles, high costs, and environmental considerations arise. Conventional backfilling often relies on cement, which poses economic and environmental challenges due to carbon emissions and costs. Research has explored alternative backfill compositions and deployment strategies. Unconventional mixtures, sometimes without cement or using alternative binders, have gained attention in freezing conditions. Studies suggest that frozen backfill can be stronger than unfrozen alternatives, with water acting as a natural binder during freezing. However, the extended freezing process requires innovative deployment methods and consideration of seasonal limitations. Key findings indicate that faster freezing processes can improve strength, yet the adverse effects of freezing on cement hydration necessitate alternative materials, such as zero-cement backfill and using alternative binders. Despite the promise of unconventional backfilling, several areas still require further exploration. Mechanisms to enhance freezing rates, alternative binder materials, and factors affecting strength and thermal conductivity need continued investigation. In our pursuit of novel backfilling methods, there remains much ground to cover. The main outcome of this review is the identification and evaluation of unconventional backfill materials and methods for use in freezing conditions, highlighting their potential advantages over conventional cement-based backfills. It underscores the need for further research into alternative binders, deployment strategies, and the optimization of freezing processes to enhance backfill strength and address economic and environmental concerns in remote mining areas.</p>","PeriodicalId":356,"journal":{"name":"Journal of Environmental Management","volume":"371 ","pages":"123335"},"PeriodicalIF":8.0,"publicationDate":"2024-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142611492","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}
引用次数: 0
A novel hybrid variable cross layer-based machine learning model improves the accuracy and interpretation of energy intensity prediction of wastewater treatment plant. 基于交叉层的新型混合变量机器学习模型提高了污水处理厂能源强度预测的准确性和解释能力。
IF 8 2区 环境科学与生态学
Journal of Environmental Management Pub Date : 2024-11-13 DOI: 10.1016/j.jenvman.2024.123209
Yucheng Li, Chen Cai, Erwu Liu, Xiaofeng Lin, Ying Zhang, Hongjing Chen, Zhongqing Wei, Xiangfeng Huang, Ru Guo, Kaiming Peng, Jia Liu
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