Journal of Environmental Management最新文献

{"title":"Simultaneous reduction of greenhouse gas and NH₃ emissions by combined application of organic and inorganic fertilizers in maize-cabbage cropping systems.","authors":"Yeomyeong Lee, Hyerin An, Sohee Yoon, Seung Tak Jeong, Chang Hoon Lee, Suvendu Das, Sang Yoon Kim","doi":"10.1016/j.jenvman.2024.123629","DOIUrl":"https://doi.org/10.1016/j.jenvman.2024.123629","url":null,"abstract":"<p><p>Intensive nitrogen (N) fertilization enhances crop yield but also increases ammonia (NH₃) and greenhouse gas (GHG) emissions (CO₂, CH₄ and N₂O), requiring sustainable fertilization regimes. The co-application of organic and inorganic fertilizers can decrease the use of inorganic fertilizer, reduce environmental pollution, and enhance soil fertility. A simultaneous investigation of the effects of combined application of organic and inorganic fertilizers on NH₃ volatilization, GHG emissions, and soil fertility is, however, lacking. The aim of this study was to investigate the effect of the co-application of organic and inorganic fertilizers on NH₃ and GHG emissions by the static chamber method, greenhouse gas intensity (GHGI), soil properties, and productivity over two cropping seasons of maize and cabbage cultivation at two different soil type in 2020 and 2021. All treatments except the control (no fertilizer) were applied with equivalent N rates, including NPK, compost, and NPK + compost. Total NH₃ volatilization increased significantly (p ≤ 0.05) in all fertilizer treatments compared to the control. Interestingly, the combined application of organic and inorganic fertilizers was effective on significantly reducing NH₃ volatilization which showed 28-37% reductions and decreasing N₂O emissions by 61-62% over the NPK treatment in successive cropping seasons, mainly due to enhanced N retention in soils, irrespective of soil type. CO₂ emissions increased in the compost amended treatments compared to the control, showing that compost application was the main contributor affecting the total GWP in upland soils. However, CH₄ emissions were negligible on total GWP in both soil types. The combined application of inorganic and organic fertilizers significantly improved the physicochemical properties of the soils compared with the control and NPK treatments, and the improvement in the soil properties is equivalent to that of the compost treatment. The productivity of maize and cabbage increased significantly with N fertilization. However, there was no significant difference between the NPK treatment and the NPK + compost. The GHGI, a sustainability parameter, was the lowest in the NPK + compost throughout the successive growing seasons, irrespective of soil type. Therefore, co-application of inorganic and organic fertilizers to upland soils could be a sustainable and promising strategy for improving soil properties and crop productivity while minimizing greenhouse gas emissions and N losses.</p>","PeriodicalId":356,"journal":{"name":"Journal of Environmental Management","volume":"373 ","pages":"123629"},"PeriodicalIF":8.0,"publicationDate":"2024-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142805829","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":"CFD study on the effect of the baffles geometry in sedimentation efficiency in wastewater treatments through Large Eddy Simulations.","authors":"P Bruno, F Bruno, G Di Bella, E Napoli, M De Marchis","doi":"10.1016/j.jenvman.2024.123536","DOIUrl":"https://doi.org/10.1016/j.jenvman.2024.123536","url":null,"abstract":"<p><p>Sedimentation tanks represent one of the most important components of any water and wastewater treatment plants. The lack of knowledge of hydraulics in sedimentation tank leads to unnecessary capital and operating costs as well as water pollution in the form of excessive sludge. Improper and inadequate design cause overloading of filters, and lead to frequent backwashing, which in turn waste a significant percentage of treated water. Sedimentation tanks require a uniform flow field to ensure the correct operating conditions. Unfortunately, the development of circulation zones causes deep deviation from the uniformity, bringing negative effects on the efficiency of the tank. The focus of this study is to apply Computational Fluid Dynamics (CFD) to study and to improve the sedimentation efficiency through the optimization of the hydrodynamics inside settling tanks. In the present analysis, Large Eddy Simulation (LES) is used to simulate three-dimensional turbulent flow and scalar tracer transport in different settlers using a structured finite-volume discretization. The results show how the baffles' geometry, as well as the inlet design, influences the retention time distribution of the tank, varying the sedimentation efficiency. In particular, the increase of baffles inside the tank reduces the free space and allows a more uniform distribution of velocity vectors. This reduces both short circuits and recirculation zones bringing the flow closer to the ideal condition. On the other hand, the inlet position influences the velocity on the tank's bottom, with possible particles re-suspension effects.</p>","PeriodicalId":356,"journal":{"name":"Journal of Environmental Management","volume":"373 ","pages":"123536"},"PeriodicalIF":8.0,"publicationDate":"2024-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142805889","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":"Environmental regulation, factor flow, and resource misallocation.","authors":"Qiangyi Li, Xiaoyu Wu, Yangqing Liu, Jiexiao Ge, Lan Yang","doi":"10.1016/j.jenvman.2024.123197","DOIUrl":"https://doi.org/10.1016/j.jenvman.2024.123197","url":null,"abstract":"<p><p>To meet the challenges of climate change worldwide, the government of China has committed to taking responsibility for protecting the environment internationally. Industrial enterprises are leaders, promoters, and contributors to green development. The government's continuous supervision of green production can promote the rational allocation of production factors. In this study, a theoretical analytical framework is constructed to illustrate mechanisms underlying the influence of environmental regulation on manufacturing resource misallocation. Employing micro panel data from manufacturing enterprises in China's 235 prefecture-level cities, the degree of resource misallocation between cities and industries, is calculated. We obtain the following results. First, improved environmental regulation intensity significantly decreased the extent of resource misallocation. Second, analysis of mechanism revealed that increased environmental regulation intensity can alleviate resource misallocation through factor flow effect and survival of the fittest effect. Third, heterogeneity analysis displayed that environmental regulation has a prominent \"mismatch-removing\" impact on eastern, central areas and high industrialization cities, pollution industries. Finally, countermeasures and suggestions are proposed, including strengthening governmental environmental oversight and promoting an orderly flow of factors. This study provides evidence and theoretical support for the idea that resource allocation at the city-industry level can be optimized by environmental regulation.</p>","PeriodicalId":356,"journal":{"name":"Journal of Environmental Management","volume":"373 ","pages":"123197"},"PeriodicalIF":8.0,"publicationDate":"2024-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142805919","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":"Evaluation of the influence of the gas residence time and biomass concentration on methane bioconversion to ectoines in a novel Taylor flow bioreactor.","authors":"Raquel Herrero-Lobo, Andrés Felipe Torres Franco, Raquel Lebrero, María Del Rosario Rodero, Raúl Muñoz","doi":"10.1016/j.jenvman.2024.123592","DOIUrl":"https://doi.org/10.1016/j.jenvman.2024.123592","url":null,"abstract":"<p><p>Today, the use of biogas to produce more sustainable bioproducts is attracting an increasing attention in the quest for a circular economy. This work aims at optimizing the biosynthesis of high value bioproducts such as ectoine and hydroxyectoine from methane using a high mass transfer Taylor flow reactor and a methanotrophic consortium. The influence of the gas residence time (30-240 min) and concentration of microorganisms (0.1-1.8 g TSS·L^-1) on methane bioconversion and ectoine production was evaluated. The maximum methane bioconversion efficiency reached was ∼90% at a gas residence time of 240 min. Biological limitation in the reactor was observed at concentrations below 0.5 g total suspended solids (TSS)·L^-1. The intracellular ectoine and hydroxyectoine content did not experience large variations with the gas residence time and biomass concentration. The maximum ectoine content was 49.0 ± 16.1 mg_EC·g_TSS^-1 at a gas residence time of 240 min and a biomass concentration of 0.7 g TSS·L^-1. The maximum hydroxyectoine content was 13.0 ± 3.6 and 12.7 ± 2.2 mg_HE·g_TSS^-1 at a gas residence time of 240 min and biomass concentrations of 1.8 and 1.2 g TSS·L^-1, respectively. Methylophaga and Methylomicrobium were the dominant methanotrophs in the bioreactor regardless of the gas residence time and biomass concentration. Microorganisms belonging to the genera Paracoccus, Methylophaga, Methylomicrobium and Nitratireductor have been identified as ectoines producers or have been found to possess genes responsible for ectoines synthesis.</p>","PeriodicalId":356,"journal":{"name":"Journal of Environmental Management","volume":"373 ","pages":"123592"},"PeriodicalIF":8.0,"publicationDate":"2024-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142805822","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":"A comprehensive review of soil remediation contaminated by persistent organic pollutants using electrokinetic: Challenging enhancement techniques.","authors":"Ali Barati Fardin, Ahmad Jamshidi-Zanjani, Mohsen Saeedi","doi":"10.1016/j.jenvman.2024.123587","DOIUrl":"https://doi.org/10.1016/j.jenvman.2024.123587","url":null,"abstract":"<p><p>The hydrophobic, hard-to-naturally-decompose compounds, including polycyclic aromatic hydrocarbons (PAHs), polychlorinated biphenyls (PCBs), and pesticides, are categorized as persistent organic pollutants (POPs). POPs are toxic/hazardous and present serious risks to human health. Electrokinetic (EK) remediation is highly flexible and cost-effective, suitable for both in-situ and ex-situ applications. It effectively targets a wide range of contaminants, including metals and organic compounds, especially in low-permeability and low-hydraulic conductivity soils, where traditional methods are less effective. This technology is easy to install and can be combined with other strategies for enhanced remediation in complex soil environments. This paper underscores EK remediation as a promising method for addressing soil pollution caused by these organic pollutants, especially in low-permeability soil. The present review starts with the classification, toxicity effects, and source of POPs in the environment. Theoretical aspects and fundamentals of EK, including transport mechanisms and principles, are also reviewed. The theoretical underpinnings of effective factors are comprehensively explored, such as surface charge, zeta potential, pH_pzc, and numerical modeling of transport fluxes. Moreover, a comprehensive examination is undertaken regarding the operation and design considerations of the EK process, encompassing factors like pH, electrode arrangement, electrolyte, and voltage. Subsequently, it is highlighted that EK has the potential to come in synergistically in contact with other remediation technologies to augment the POPs' degradation. Various enhancement techniques are also explored, including solvent extraction, chemical oxidation, bioremediation, and permeable reactive barriers to combine with EK. Each method is examined in terms of its advantages, limitations, recent developments, and ongoing research. Finally, the potential and challenges associated with enhanced EK methods combined with other techniques for the removal of POPs were reviewed.</p>","PeriodicalId":356,"journal":{"name":"Journal of Environmental Management","volume":"373 ","pages":"123587"},"PeriodicalIF":8.0,"publicationDate":"2024-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142805867","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":"A framework to explore the services value provided by snow cover: A case study for Heilongjiang Province, China.","authors":"Yu Fan, Changgeng Jia, Youtao Song, Denghua Yan","doi":"10.1016/j.jenvman.2024.123547","DOIUrl":"https://doi.org/10.1016/j.jenvman.2024.123547","url":null,"abstract":"<p><p>Ecosystem services and their accounting frameworks have been extensively studied. Snow, as a special climatic product, can provides essential resources and services for human well-being and socioeconomic development which is often ignored. However, the services and value it provides have not been effectively evaluated. To address this crucial omission, we develop a snow service value (SSV) accounting framework that summarizes the value of snow services in a single monetary metric. We illustrate the measurement of SSV by applying it to the Chinese province of Heilongjiang, demonstrating that the approach is feasible with the data at hand. On the basis of MODIS, statistical data, and meteorological station data, the value of 10 services, such as product supply (PS), regulating and supporting services (RSS), and cultural service (CS), was determined. In 2019, the SSV value of Heilongjiang province was 554.2 billion yuan, with Greater Khingan Mountains, Harbin, and Heihe city accounting for more than 60 billion yuan. Snow has a significant impact on climate regulation and runoff regulation, constituting almost 60% of SSV. Through the survey questionnaire, we discovered that Heilongjiang residents are more concerned about the impact of snow on agriculture. Using the results of accounting and a questionnaire survey, our study focuses on highlighting the importance and policy significance of snow service evaluation, which is conducive to enhancing the public's attention to snow resource management in the face of a reduction in snow cover due to climate change and investigating how to transform snow service into economic value.</p>","PeriodicalId":356,"journal":{"name":"Journal of Environmental Management","volume":"373 ","pages":"123547"},"PeriodicalIF":8.0,"publicationDate":"2024-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142805872","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":"Study on the mechanism of regulating micromolar Fe utilization and promoting denitrification by guanosine monophosphate (GMP) based multi-signal functional material Hematin@Fe/GMP.","authors":"Yunzhe Hao, Tingting Guo, Haibo Li, Wenli Liu, Zhi Chen, Xiaoping Wang, Jianbo Guo","doi":"10.1016/j.jenvman.2024.123610","DOIUrl":"https://doi.org/10.1016/j.jenvman.2024.123610","url":null,"abstract":"<p><p>A novel multi-signal functional material consisting of Hematin, Fe, and guanosine monophosphate (GMP) was successfully constructed (Hematin@Fe/GMP) to enhance denitrification efficiency based on the signal network regulation of electron transfer, micromolar Fe utilization, and microbial community. Hematin@Fe/GMP enhanced nitrate reduction rate by 2.33-fold with a 9.9 mg L^-1 h^-1 reduction rate. The mechanisms of accelerated denitrification were elaborated deeply from the electrochemical experiments, microbial metabolism activity, key enzyme activity, gene expression, and microbial community. Specifically, electrochemical experiments and X-ray photoelectron spectroscopy demonstrated that the released redox signal (Fe²⁺/Fe³⁺) promoted the increased redox substances (extracellular polymeric substances, cytochrome c, and riboflavin) to accelerate electron transfer efficiency. Metagenomic analysis suggested the released Fe utilization signal modulated siderophores genes (fhuB, fhuC, and fhuD) to promote the uptake and utilization of micromolar Fe, which was more conducive to synthesizing cytochrome c. Moreover, extracellular polymeric substances (EPS) stripping experiments demonstrated that the membrane-anchored cyt-c could shuttle in EPS and bind with Hematin@Fe/GMP to form an electrical conduit for accelerating denitrification efficiency. In inhibition experiments, Hematin@Fe/GMP could break down electron transfer barriers and restore/compensate for the electron transfer chain. Meanwhile, Hematin@Fe/GMP could restore the electrical signal disruption and synergize with the enriched signaling-capable microorganisms (Stutzerimonas and Thauera) to regulate quorum sensing. This research introduced multi-signal modulation of Hematin@Fe/GMP on denitrification and provided strategies for accelerating the biological transformation process and effectively utilizing micromolar Fe in practical applications.</p>","PeriodicalId":356,"journal":{"name":"Journal of Environmental Management","volume":"373 ","pages":"123610"},"PeriodicalIF":8.0,"publicationDate":"2024-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142805831","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":"Efficient removal of manganese ions from waters using hypochlorite-modified granular activated carbon.","authors":"Ying-Ju Chang, Chihpin Huang, Jo-Shu Chang, Duu-Jong Lee","doi":"10.1016/j.jenvman.2024.123577","DOIUrl":"https://doi.org/10.1016/j.jenvman.2024.123577","url":null,"abstract":"<p><p>Conventional drinking waterworks generally disregard the manganese removal efficiencies. For the first time, this study demonstrates the potential of ClO^--modified activated carbon for efficient Mn removal from raw water. The 10% NaClO-modified granular activated carbon increases the Mn²⁺ adsorption capacity from 4.28 mg/g to 28.1 mg/g at an initial Mn concentration of 50 mg/L at pH 7 and 25 °C. Conversely, applying strong acids, bases, oxidants, or microwave treatments adversely impacts the adsorption capacity of the modified activated carbon. The kinetic adsorption tests and equilibrium measurements reveal increased Mn²⁺ adsorption capacities with ClO^- concentration and initial Mn²⁺ concentration, peaking at 35 °C. The mechanistic studies show that the chemical complexation with the C=C bonds on the carbon's surface from ClO^--modification principally contributes to the enhanced Mn²⁺ adsorption. Jar tests demonstrate that 5% NaClO-modified activated carbon can completely remove 0.3 mg/L Mn²⁺ or over 98% of 1 mg/L Mn²⁺ in the presence of competing Fe²⁺ ions. The ClO-modified granular activated carbon has excellent potential for practical drinking water production since all materials used are certified by the National Sanitation Foundation (NSF).</p>","PeriodicalId":356,"journal":{"name":"Journal of Environmental Management","volume":"373 ","pages":"123577"},"PeriodicalIF":8.0,"publicationDate":"2024-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142805894","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":"Membrane fouling characteristics and cleaning strategies for rural decentralized nanofiltration drinking water station based on groundwater source.","authors":"Dazhou Hu, Hui Zhong, Suresh Indika, Shuanglin Gui, Baogeng Shang, Yuansong Wei","doi":"10.1016/j.jenvman.2024.123531","DOIUrl":"https://doi.org/10.1016/j.jenvman.2024.123531","url":null,"abstract":"<p><p>Groundwater is an important source of drinking water in rural areas. In this study, the performance of water purificat ion in a rural water station equipped with nanofiltration (NF) membranes based groundwater source was investigated, as well as the contamination morphology, foulant composition and distribution characteristics of NF membrane. Results showed that significant differences of membrane foulants were observed in different sections of NF membrane. The inlet and middle sections were dominated by organic foulants and exhibited a high abundance of microbial communities associated with organic matter metabolism, and the outlet section was dominated by inorganic foulants and showed an elevated abundance of microorganisms such as Dechloromonas, norank_f_Desulfuromonadaceae, Ferribacterium, Dietzia, Mycobacterium, and Bradyrhizobium. Inorganic fouling accounted for 39.32% of the total resistance and was the main factor contributing to the decrease in membrane flux. Based on the flux recovery after membrane cleaning, the flux recovery obtained by the combination of \" acid followed by alkaline \" is 1.59 times higher than the flux of the contaminated membrane. This study can support the operation and maintenance of NF drinking water stations to extend the service life of membranes.</p>","PeriodicalId":356,"journal":{"name":"Journal of Environmental Management","volume":"373 ","pages":"123531"},"PeriodicalIF":8.0,"publicationDate":"2024-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142805826","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":"How does the chemical composition of dung affect nitrous oxide and methane emissions in pasture soils?","authors":"Francisco Paulo Amaral Júnior, Camila Eduarda Souza de Sousa, Bruno Rafael de Almeida Moreira, Bruno José Rodrigues Alves, Vanessa Zirondi Longhini, Abmael da Silva Cardoso, Ana Cláudia Ruggieri","doi":"10.1016/j.jenvman.2024.123630","DOIUrl":"https://doi.org/10.1016/j.jenvman.2024.123630","url":null,"abstract":"<p><p>There is an important gap in how variations in herbivore dung composition affect GHG emissions on pastures, especially due to differences in dry matter (DM) and nitrogen contents. Oversimplifications can compromise the accuracy of mitigation strategies. This study aims to address this gap by investigating how the chemical composition of dung from different species influences GHG emissions in pasture systems. The results showed that drier dung led to higher cumulative N₂O emissions. The highest emissions were observed from goat at 9.47 mg N-N₂O g⁻¹ dry soil, followed by sheep at 5.95 mg N-N₂O g⁻¹ dry soil, beef cattle at 5.44 mg N₂O g⁻¹ dry soil, dairy cattle at 2.67 mg N₂O g⁻¹ dry soil, and horse at 0.83 mg N₂O g⁻¹ dry soil. It was observed that higher dung moisture content generally corresponded to increased CH₄ emissions, except for horse dung. The highest cumulative CH₄ emission was for dairy cattle dung (8.29 mg C-CH₄ g⁻¹ dry soil), followed by beef cattle (3.89 mg C-CH₄ g⁻¹ dry soil), sheep (2.32 mg C-CH₄ g⁻¹ dry soil), goats (1.89 mg C-CH₄ g⁻¹ dry soil), and horses (1.66 mg C-CH₄ g⁻¹ dry soil). Principal Component Analysis illustrated that PC₁, named as diet quality, explained 61.9% of the variance, was positively correlated with N₂O and negatively correlated with fiber content and C/N ratio, while PC₂, named as acetrophic and hydrogenotrophic methanogenesis, explained 19.6% of the variance, linking VS to reduced CH₄ emissions. This study establishes relationships between manure chemical composition and GHG emissions, filling a fundamental knowledge gap and supporting the development of cause-and-effect models.</p>","PeriodicalId":356,"journal":{"name":"Journal of Environmental Management","volume":"373 ","pages":"123630"},"PeriodicalIF":8.0,"publicationDate":"2024-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142805824","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}