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Foliar-applied zinc promotes cadmium allocation from leaf surfaces to grains in rice

Journal of environmental Sciences 2025年第5期151卷 582-593页

作者： Ya-Ting Liu Bo-Fang Yan Xuan Cai Hong-Xiang Zheng Rong-Liang Qiu Ye-Tao Tang School of Environmental Science and Engineering Sun Yat-sen UniversityGuangzhou 510006China Institute of Facility Agriculture Guangdong Academy of Agricultural SciencesGuangzhou 510640China Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology Sun Yat-sen UniversityGuangzhou 510006China Guangdong Provincial Key Laboratory of Agricultural&Rural Pollution Abatement and Environmental Safety College of Natural Resources and EnvironmentSouth China Agricultural UniversityGuangzhou 510642China

The accumulation of Cd by rice poses significant health *** fertilizationwith Zn can reduce grain Cd contents in rice grown in Cd-contaminated ***,atmospheric deposition on leaves is another vector of Cd contamination,and it remains unclear how Zn application affects the allocation of such *** conducted an experiment where the flag leaves of rice plants were treated with solutions with various Zn concentrations and a constant Cd *** 111Cd stable isotope was used to trace the flux of foliarapplied *** levels of foliar-applied Zn enhanced Cd efflux and grain *** is attributed to limited sequestration of foliar-applied Cd in the leaf cell symplasm and increased Cd desorption from leaf cell walls when a high Zn^(2+)concentration occurs in the *** Zn oxide nanoparticlesmitigated these ***,the expressions of OsLCT1 and OsZIP7 in flag leaves and OsHMA2 and OsZIP7 in the uppermost nodes were upregulated under high-Zn^(2+)treatment,which may facilitate Cd phloem loading and grain *** is advised in using foliar Zn in areas with high atmospheric Cd due to potential grain-contamination risks.

关键词： Atmospheric deposition Isotope labelling Metal interaction Phloem Cell wall

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Grasping emergency dynamics:A review of group evacuation techniques and strategies in major emergencies

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Journal of Safety Science and Resilience 2025年第1期6卷 1-20页

作者： Hai Sun Guorui Han Xiaowei Zhang Xuejing Ruan College of Engineering Ocean University of ChinaQingdao 266100China Key Laboratory of Marine Environment and Ecology Ministry of EducationOcean University of ChinaQingdao 266100China College of Civil Engineering and Architecture Qingdao Agricultural UniversityQingdao 266109China School of Engineering Design and Built EnvironmentWestern Sydney UniversityNSW 2745Australia

Major sudden disasters,such as floods,earthquakes,and fires,often cause significant *** evacuation is crucial in mitigating these *** types of disaster incidents vary significantly in terms of impact scope,suddenness,and *** type of disaster possesses distinct characteristics,necessitating varying requirements for emergency ***,we conducted a bibliometric analysis and visual mapping of evacuation processes in major natural disasters from 2004-2023,analyzing 7213 publications from the Web of Science database via VOSviewer and *** study identified three developmental phases:an initial phase(pre-2011)with 1169 publications,a growth phase(2012-2018)with 2772 publications,and an expansion phase(post-2019)with 3335 *** study provides a comprehensive review and classification of emergency evacuation theories and methods in major disaster *** emphasizes the necessity of assessing the scope and intensity of different types of major emergent disasters,defining and simulating the affected behaviors of the influenced populations,and formulating differentiated emergency evacuation strategies *** analysis reveals two main trends supporting these findings:an increasing focus on complex evacuation modeling and simulation techniques,manifested in the application of various simulation-optimized microscopic and macroscopic models such as cellular automata,social force models,agent-based models,pedestrian flow,and network flow models,enhancing disaster understanding and prediction capabilities;and the strategic development of tailored evacuation strategies for specific disaster contexts,thereby improving disaster response *** key future pathways for safety evacuation research are outlined:refining evacuation behavior models for greater accuracy,improving the coordination of complex,multi-level evacuation procedures,and integrating indoor and outdoor evacuation strategi

关键词： Evacuation simulation Simulation modeling Strategy optimization Disaster management Bibliometric analysis

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Biodegradation pathway and mechanism of tri (2-chloropropyl) phosphate by Providencia rettgeri

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Journal of environmental Sciences 2024年第10期144卷 26-34页

作者： Jinming Ye Shaoyu Tang Rongliang Qiu Shuona Chen Huiling Liu College of Natural Resources and Environment of South China Agricultural University Guangzhou 510642China Guangdong Provincial Key Laboratory of Agricultural&Rural Pollution Abatement and Environmental Safety Guangzhou 510642China Research Center for Eco-Environmental Engineering Dongguan University of TechnologyDongguan 523808China

Tri(2-chloropropyl)phosphate(TCPP)was an emerging contaminant of global concern because of its frequent occurrence,potential toxic effects,and persistence in the *** degradation might be an efficient and safe removal method,but limited information was *** this study,Providencia rettgeri was isolated from contaminated sediment and showed it could use TCPP as unique phosphorus source to promote growth,and decompose 34.7%of TCPP(1 mg/L)within 5 *** microbial inoculation and the initial concentration of TCPP could affect the biodegradation *** study results indicated that TCPP decomposition by Providencia rettgeri was mainly via phosphoester bond hydrolysis,evidenced by the production of bis(2-chloropropyl)phosphate(C_(6)H_(13)Cl_(2)PO_(4))and mono-chloropropyl phosphate(C_(3)H_(8)ClPO_(4)).Both intracellular and extracellular enzymes could degrade TCPP,but intracellular degradation was dominant in the later reaction stage,and the presence of Cu^(2+) ions had a promoting *** findings developed novel insights into the potential mechanism of TCPP microbial degradation.

关键词： Chlorinated organophosphate flame retardants Microbial degradation Degradation pathway Providencia rettgeri Tri(2-chloropropyl)phosphate

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Unravelling superior photodegradation ability and key photoactive structures of hydrochar particle to typical emerging contaminant than corresponding bulk hydrochar from food waste

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Biochar 2024年第1期6卷 1261-1276页

作者： Wenjing Guo Zhiyong Zhang Yanfang Feng Guodong Fang Shiying He Shaopeng Rong Key Laboratory of Agro-Environment in Downstream of Yangtze Plain Ministry of Agriculture and Rural AffairsInstitute of Agricultural Resources and EnvironmentJiangsu Academy of Agricultural SciencesNanjing 210014People’s Republic of China. Key Laboratory of Soil Environment and Pollution Remediation Institute of Soil ScienceChinese Academy of SciencesNanjing 210008People’s Republic of China. Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse School of Environmental and Biological EngineeringNanjing University of Science and TechnologyNanjing 210094People’s Republic of China.

Hydrochar from waste biomass is a promising material for removing emerging contaminants(e.g.,antibiotics)in water/soil *** small-sized hydrochar particles(HPs)with a high content of reactive functional groups and high mobility are easily released into ecosystems through hydrochar ***,the photodegradation ability and corresponding structures of HPs are largely unknown,which hinder accurate estimation of the remediation effect of hydrochar in ***,photodegradation performance of HP towards targeted norfloxacin(NOR,a typical antibiotic)under light irradiation(visible and UV light)were investigated after adsorption processes upon release into soil/water,and its reactive species and photoactive structures were clarified and compared with those of residual bulk hydrochar(BH)*** results showed that:(1)photodegradation percentages of HPs were 4.02 and 4.48 times higher than those of BHs under UV and visible light,in which reactive species of both HPs and BHs were·OH and·O2−;(2)density functional theory(DFT)results identified that the main photoactive structure of graphitic-N decreased the energy gap(Eg)of HPs,and C=O,COOH groups improved electron donating ability of BHs;(3)well-developed graphitization structure of HP resulted from higher polymerization reaction was an significant photoactive structure involving its superior photodegradation ability relative to that of *** distinct heterogeneities of photodegradation ability in HP and BH and underlying photoactive structures provide an in-depth understanding of hydrochar application for removing emerging contaminants in soil/water *** photoactive structures is helpful to predict photodegradation ability of hydrochar according to their abundance.

关键词： Hydrochar Norfloxacin Electron-hole Graphitic-N Density functional theory

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Beyond microbial carbon use efficiency

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National Science Review 2024年第4期11卷 33-35页

作者： Ke-Qing Xiao Chao Liang Zimeng Wang Jingjing Peng Yao Zhao Ming Zhang Mingyu Zhao Shuiqing Chen Yong-Guan Zhu Caroline L.Peacock State Key Lab of Urban and Regional Ecology Research Center for Eco-Environmental SciencesChinese Academy of Sciences University of Chinese Academy of Sciences Institute of Applied Ecology Chinese Academy of Sciences Department of Environmental Science and Engineering Fudan University College of Resources and Environmental Sciences China Agricultural University State Key Laboratory of Environmental Criteria and Risk Assessment Chinese Research Academy of Environmental Sciences State Key Laboratory of Agricultural Microbiology College of Resources and Environment Huazhong Agricultural University Key Laboratory of Cenozoic Geology and Environment Institute of Geology and Geophysics Chinese Academy of Sciences School of Earth and Environment University of Leeds

Microbial carbon use efficiency (CUE)is defined as the proportion of microbial biomass growth C versus substrate C uptake, and thus provides a useful measure of microbially driven accumulation and loss of soil organic carbon (SOC)[1]. In a recent study published in Nature [2],the authors used a data-driven machinelearning approach to conclude that CUE promotes global SOC storage based on a positive correlation between CUE and SOC content and that, based on sensitivity analysis, CUE is at least four times as important as six other evaluated factors,namely plant C inputs, C input allocation, non-microbial C transfer, substrate decomposability, environmental modifications and vertical transport.

关键词： beyond carbon efficiency microbial

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Hydrothermal temperature-dependent compositions and copper complexing behaviors of hydrochar-derived dissolved organic matter: Insights from FT-ICR MS and multi-spectroscopic analysis

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Journal of environmental Sciences 2025年第6期152卷 685-700页

作者： Bingfa Chen Xincai Gu Muhua Feng Yanfang Feng Bingyu Wang Bensheng You Jingcheng Zheng Hong Liu Shiqun Han State Environmental Protection Key Laboratory of Aquatic Ecosystem Health in the Middle and Lower Reaches of Yangtze River Nanjing 210093China Key Laboratory of Agro-Environment in Downstream of Yangtze Plain Ministry of Agriculture and Rural AffairsInstitute of Agricultural Resources and EnvironmentJiangsu Academy of Agricultural SciencesNanjing 210014China School of Environmental Science and Engineering Suzhou University of Science and TechnologySuzhou 215009China State Key Laboratory of Lake Science and Environment Nanjing Institute of Geography and LimnologyChinese Academy of SciencesNanjing 210008China School of Environmental and Biological Engineering Nanjing University of Science and TechnologyNanjing 210094China Jiangsu Synthetic Innovation Center for Coastal Bio-agriculture School of WetlandsYancheng Teachers UniversityYancheng 224002China

The copper complexing of dissolved organic matter released from hydrochar(HDOM)affects the former’s environmental *** this study,how hydrothermal temperatures(180,220 and 260℃)influence the molecular-level constitutions and Cu(II)binding features of HDOM were elucidated via fourier transform ion cyclotron resonance mass spectrometry and multi-spectroscopic *** findings demonstrated that the almost HDOM molecules had the traits of lower polarity and higher *** the hydrothermal temperature increased,the molecules with particularly high relative strength gradually disappeared,average molecular weight,percentages of CHON and aliphatic compounds of HDOM reduced while the percentages of CHO and aromatic compounds *** general,the fluorescence quenching of Cu(II)weakened as hydrothermal temperature rose and the Cu(II)binding stability constants of fluorophores in HDOM were 4.50–*** addition,the Cu(II) binding order of fluorophores in HDOM showed temperature heterogeneities, andpolysaccharides or aromatic rings of non-fluorescent substances had the fastest responsesto Cu(II) binding. Generally, fluorescent components tend to bind Cu(II) at relatively traceconcentrations (0–40 μmol/L), whereas non-fluorescent substances tend to the bind Cu(II)at relatively higher concentrations (50–100 μmol/L). This study contributed to the predictionof the potential environmental behaviors and risks of Cu(II) at the molecular level afterhydrochar application.

关键词： Hydrochar Dissolved organic matter Molecular characterizations Cu(II)binding Two-dimensional correlation analysis(2D-COS)

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Subsoil tillage enhances wheat productivity,soil organic carbon and available nutrient status in dryland fields

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Journal of Integrative Agriculture 2024年第1期23卷 251-266页

作者： Qiuyan Yan Linjia Wu Fei Dong Shuangdui Yan Feng Li Yaqin Jia Jiancheng Zhang Ruifu Zhang Xiao Huang Institute of Wheat Research Shanxi Agricultural UniversityLinfen 041000China State Key Laboratory of Sustainable Dryland Agriculture(in preparation) Shanxi Agricultural UniversityTaiyuan 030031China College of Resources and Environment Shanxi Agricultural UniversityTaigu 030801China Jiangsu Key Lab and Engineering Center for Solid Organic Waste Utilization National Engineering Research Center for Organicbased FertilizersNanjing Agricultural UniversityNanjing 210095China

Tillage practices during the fallow period benefit water storage and yield in dryland wheat ***,there is currently no clarity on the responses of soil organic carbon(SOC),total nitrogen(TN),and available nutrients to tillage practices within the growing *** study evaluated the effects of three tillage practices(NT,no tillage;SS,subsoil tillage;DT,deep tillage)over five years on soil physicochemical *** samples at harvest stage from the fifth year were analyzed to determine the soil aggregate and aggregate-associated C and N *** results indicated that SS and DT improved grain yield,straw biomass and straw carbon return of wheat compared with *** contrast to DT and NT,SS favored SOC and TN concentrations and stocks by increasing the soil organic carbon sequestration rate(SOCSR)and soil nitrogen sequestration rate(TNSR)in the 0-40 cm *** SOC levels under SS and NT were associated with greater aggregate-associated C fractions,while TN was positively associated with soluble organic nitrogen(SON).Compared with DT,the NT and SS treatments improved soil available nutrients in the 0-20 cm *** findings suggest that SS is an excellent practice for increasing soil carbon,nitrogen and nutrient availability in dryland wheat fields in North China.

关键词： tillage dryland wheat fields soil aggregate size soil nutrients soil carbon and nitrogen fractions

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Efficient magnetic capture of PE microplastic from water by PEG modified Fe_(3)O_(4)nanoparticles:Performance,kinetics,isotherms and influence factors

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Journal of environmental Sciences 2025年第1期147卷 677-687页

作者： Yifan Zhang Jingjing Duan Ruiqian Liu Evangelos Petropoulos Yanfang Feng Lihong Xue Linzhang Yang Shiying He College of Resources and Environmental Sciences Nanjing Agricultural UniversityNanjing 210095China Key Laboratory of Agro-Environment in Downstream of Yangze Plain Ministry of Agriculture and Rural AffairsInstitute of Agricultural Resources and EnvironmentJiangsu Academy of Agricultural SciencesNanjing 210014China School of Engineering Newcastle UniversityNewcastle upon Tyne NE17RUUK Stantec UK Newcastle upon Tyne NE13DYUK

Due to their resistance to degradation,wide distribution,easy diffusion and potential uptake by organisms,microplastics(MPs)pollution has become a major environmental *** this study,PEG-modified Fe_(3)O_(4)magnetic nanoparticles demonstrated superior adsorption efficiency against polyethylene(PE)microspheres compared to other adsorbents(bare Fe_(3)O_(4),PEI/Fe_(3)O_(4)and CA/Fe_(3)O_(4)).Themaximumadsorption capacity of PEwas found to be 2203 mg/g by adsorption isotherm ***/Fe_(3)O_(4)maintained a high adsorption capacity even at low temperature(5℃,2163 mg/g),while neutral pH was favorable for MP *** presence of anions(Cl^(-),SO_(4)^(2-),HCO_(3)^(-),NO_(3)^(-))and of humic acids inhibited the adsorption of *** is proposed that the adsorption process was mainly driven by intermolecular hydrogen ***,the study demonstrated that PEG/Fe_(3)O_(4)can potentially be used as an efficient control against MPs,thus improving the quality of the aquatic environment and of our water resources.

关键词： Microplastic removal Adsorption Magnetic nanoparticles Wastewater Surface modification

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Recycling of stainless steel pickling wastewater and polyethylene terephthalate plastic: A total-waste synthesis of metal-organic framework

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Progress in Natural Science:Materials International 2023年第4期33卷 478-485页

作者： Xudong Zhao Linshuai Zhang Baosheng Liu Chengwei Zhang Huifang Zhao Chong-Chen Wang Dahuan Liu College of Chemical Engineering and Technology Taiyuan University of Science and Technology College of Materials Science and Engineering Engineering Research Center for Magnesium Alloy of Shanxi Province Taiyuan University of Science and Technology State Key Laboratory of Organic-Inorganic Composites College of Chemical Engineering Beijing University of Chemical Technology Beijing Key Laboratory of Functional Materials for Building Structure and Environment Remediation Beijing University of Civil Engineering and Architecture

Metal-organic frameworks（MOFs） attract considerable interests in various fields while relatively high cost limits their industrial-level use. Herein, we proposed a total-waste preparation route for Fe/Cr-MIL-88B（MIL, Mat erial Institut Lavoisier）, in which stainless steel pickling wastewater（PW） and waste polyethylene terephthalate（PET）act the total raw materials. Interestingly, PET is easily decomposed to terephthalic acid（H2BDC） under the strong acid environment of PW. Benefited from that, the formation of MOFs from PET and PW can be achieved via one-pot hydrothermal reaction, superior to the traditional two-step method. The obtained MIL-88B exhibits long-term acid/base stability and high removal efficiency for zirconium（Ⅳ） ion. Besides, the structure and adsorption performance of the products are not controlled by the discharge batch of the pickling wastewater, indicating the feasibility for continuous production in industry. Thus, our work provides a feasible route for preparing low-cost MOFs and recycling industrial wastes.

关键词： Metal-organic framework Industrial waste Resource recycle Adsorption

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Flutter analysis of compressor blades under travelling wave modes using an efficient fluid–structure interaction method

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Chinese Journal of Aeronautics 2023年第11期36卷 221-232页

作者： Kangdi LI Yunxiang DU Zili XU Shizhi ZHAO Lu CHENG State Key Laboratory for Strength and Vibration of Mechanical Structures Xi’an Jiaotong UniversityXi’an 710049China Beijing Institute of Structure and Environment Engineering Beijing 100076China State Key Laboratory of Clean and Efficient Turbomachinery Power Equipment Dongfang Steam Turbine Co.LtdDeyang 618000China

Flutter is a self-sustained vibration which could create serious damage to compressor *** the efficiency and accuracy of Fluid-structure Interaction(FSI)method is crucial to flutter *** efficient FSI method which combines a fast mesh deformation technology and Double-Passage Shape Correction(DPSC)method is proposed to predict blades flutter under traveling wave ***,regarding the fluid domain as a pseudo elastic solid,the flow mesh deformation and blade vibration response can be quickly obtained by solving the governing equations of the holistic system composed of blade and pseudo elastic ***,by storing and updating the Fourier coefficients on the circumferential boundary,the phase-lagged boundary condition is introduced into the computational ***,the aerodynamic stability for the blades of an axial compressor under various Inter-Blade Phase Angle(IBPA)is *** results show that the proposed method can effectively predict the characteristics of aerodynamic damping,aerodynamic force and blade *** a conceptual model is proposed to describe the motion behavior of the shock *** with the multi-passage method,the proposed method obtains almost the same unstable IBPA interval and the blade displacement error is less than 3.4%.But the calculation time is significantly shortened especially in small IBPA cases.

关键词： Flutter Inter-blade phase angle Fast mesh deformation Fluid-structure interaction Shock wave

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