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A novel method for producing benzene polycarboxylic acids by electrochemical oxidation of Zhaotong lignite in aqueous NaCl solution

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Carbon resources Conversion 2024年第2期7卷 88-94页

作者： Ze-Zheng Li Wei-Jia jiang Yu-Gao Wang Zhi-Lei Wang jun Shen xian-Yong Wei college of Chemical Engineering and Technology Taiyuan University of TechnologyTaiyuan 030024ShanxiChina School of Basic Medicine Shanxi University of Chinese MedicineJinzhong 030619China Institute of environmental Science Shanxi UniversityTaiyuan 030031China Shanxi Huayang New Material Technology Group Co. Ltd.YangquanShanxi 045000China Key Laboratory of Coal Processing and Efficient Utilization Ministry of EducationChina University of Mining&TechnologyXuzhou 221116JiangsuChina

The development of a coal-based synthetic route to produce benzene polycarboxylic acids(BPCAs)is of great importance for the highly efficient utilization of *** this paper,aqueous NaCl^(-)electrolytic system was used to oxidize Zhaotong lignite to prepare *** electrochemical oxidation of lignite in aqueous NaCl solution could produce more BPCAs than that in aqueous NaOH *** aqueous NaCl electrolytic system could in-suit produce a stable OCl^(-),which was synthesized by the combination reaction between Cl_(2)and OH􀀀generated in the anode or cathode,*** in-suit produced OCl^(-)would degrade the organic structures of the lignite dispersing in the electrolyte to generate *** formation of BPCAs could be greatly affected by current density,electrolysis time and the addition amount of NaCl in the electrolytic system,which resulted from that the factors played an important role in the generation of OCl^(-).The coal related model compounds including anthracene and phenanthrene were used to investigate the electrochemical oxidation mechanism of the *** results indicated that the aromatic ring structures in the lignite were attacked by O_(2)•^(-)from the OCl^(-)to afford BPCAs.

关键词： Lignite Benzene polycarboxylic acids Electrochemical oxidation Aqueous NaCl electrolytic system Coal related model compounds

Intensified river salinization alters nitrogen-cycling microbial communities in arid and semi-arid regions of China

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Eco-environment & Health 2024年第3期3卷 271-280页

作者： Qingqing Pang Dan Wang Zewei jiang Mohamed Abdalla Lei xie xiang Zhu Fuquan Peng Pete Smith Longmian Wang Lingzhan Miao jun Hou Peng Yu Fei He Bin Xu Nanjing Institute of environmental Sciences Ministry of Ecology and EnvironmentNanjing 210042China college of environment Hohai UniversityNanjing 210098China college of Agricultural Science and Engineering Hohai UniversityNanjing 210098China Institute of Biological&environmental Sciences University of Aberdeen23 St Machar Dr.Aberdeen AB243UUUK School of environmental Science and Engineering Nanjing University of Information Science and TechnologyNanjing 210044China Shandong Academy of environmental Sciences Co. LtdJinan 250100China

Freshwater salinization is receiving increasing global attention due to its profound influence on nitrogen cycling in aquatic ecosystems and the accessibility of water ***,a comprehensive understanding of the changes in river salinization and the impacts of salinity on nitrogen cycling in arid and semi-arid regions of China is currently lacking.A meta-analysis was first conducted based on previous investigations and found an intensification in river salinization that altered hydrochemical *** further analyze the impact of salinity on nitrogen metabolism processes,we evaluated rivers with long-term salinity gradients based on in situ *** genes and enzymes that were inhibited generally by salinity,especially those involved in nitrogen fixation and nitrification,showed low abundances in three salinity *** abundance of genes and enzymes with denitrification and dissimilatory nitrate reduction to ammonium functions still maintained a high proportion,especially for denitrification genes/enzymes that were enriched under medium *** bacteria exhibited various relationships with salinity,while dissimilatory nitrate reduction to ammonium bacterium(such as Hydrogenophaga and Curvibacter carrying nirB)were more inhibited by salinity,indicating that diverse denitrifying bacteria could be used to regulate nitrogen *** genera exhibited symbiotic and mutual relationships,and the highest proportion of significant positive correlations of abundant genera was found under medium *** study emphasizes the role of river salinity on environment characteristics and nitrogen transformation rules,and our results are useful for improving the availability of river water resources in arid and semi-arid regions.

关键词： Arid and semi-arid regions Nitrogen cycle Nitrogen transforming functional bacteria River Salinity gradient

A reference-grade genome of the xerophyte Ammopiptanthus mongolicus sheds light on its evolution history in legumes and droughttolerance mechanisms

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Plant Communications 2024年第7期5卷 157-177页

作者： Lei Feng Fei Teng Na Li Jia-Cheng Zhang Bian-jiang Zhang Sau-Na Tsai Xiu-Le Yue Li-Fei Gu Guang-Hua Meng tian-Quan deng Suk-Wah Tong Chun-Ming Wang Yan Li Wei Shi Yong-Lun Zeng Yue-Ming jiang Weichang Yu Sai-Ming Ngai Li-Zhe An Hon-Ming Lam jun-xian He School of Life Sciences and State Key Laboratory of Agrobiotechnology The Chinese University of Hong KongSha TinNew TerritoriesHong KongChina Guangdong Provincial Key Laboratory of Biotechnology for Plant development School of Life SciencesSouth China Normal UniversityGuangzhou 510631China BGI-Shenzhen Tech Co. Ltd.Beishan Industrial ZoneYantian DistrictShenzhen 518083China School of Life Sciences and Ministry of Education Key Laboratory of Cell Activities and Stress Adaptations Lanzhou UniversityLanzhou 730030China State Key Laboratory of Subtropical Silviculture Zhejiang Agriculture and Forestry UniversityHangzhou 311300China State Key Laboratory of Plant Diversity and Specialty Crops South China Botanical GardenChinese Academy of SciencesGuangzhou 510650China Guangdong Provincial Key Laboratory of Applied Botany&Key Laboratory of South China Agricultural Plant Molecular Analysis and Genetic Improvement South China Botanical GardenChinese Academy of SciencesGuangzhou 510650China college of Life Sciences and Oceanography Shenzhen UniversityShenzhen 518060China State Key Laboratory of Efficient Production of Forest resources Beijing Forestry UniversityBeijing 100083China

Plants that grow in extreme environments represent unique sources of stress-resistance genes and *** mongolicus(Leguminosae)is a xerophytic evergreen broadleaf shrub native to semi-arid and desert regions;however,its drought-tolerance mechanisms remain poorly ***,we report the assembly of a reference-grade genome for ***,describe its evolutionary history within the legume family,and examine its drought-tolerance *** assembled genome is 843.07 Mb in length,with 98.7%of the sequences successfully anchored to the nine chromosomes of *** genome is predicted to contain 47611 protein-coding genes,and 70.71%of the genome is composed of repetitive sequences;these are dominated by transposable elements,particularly longterminal-repeat *** analyses revealed two whole-genome duplication(WGD)events at 130 and 58 million years ago(mya)that are shared by the genus Ammopiptanthus and other legumes,but no species-specific WGDs were found within this *** genome reconstruction revealed that the *** genome has undergone fewer rearrangements than other genomes in the legume family,confirming its status as a"relict plant".Transcriptomic analyses demonstrated that genes involved in cuticular wax biosynthesis and transport are highly expressed,both under normal conditions and in response to polyethylene glycol-induced *** induction of genes related to ethylene biosynthesis and signaling was also observed in leaves under dehydration stress,suggesting that enhanced ethylene response and formation of thick waxy cuticles are two major mechanisms of drought tolerance in *** expression of AmERF2,an ethylene response factor unique to ***,can markedly increase the drought tolerance of transgenic Arabidopsis thaliana plants,demonstrating the potential for application of *** genes in crop improvement.

关键词： Ammopiptanthus mongolicus genome sequencing genome evolution drought tolerance cuticular wax ethylene

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物种异步性在不同增温条件下维持群落稳定性

Journal of Plant Ecology 2024年第3期17卷 104-114页

作者： Qianxin jiang juntao Zhu Peili Shi Yunlong He Yangjian Zhang jun Yan Wendong xie Ning Zong Ge Hou Ruonan Shen Jiahe Zheng Key Laboratory of Ecosystem Network Observation and Modelling Institute of Geographic Sciences and Natural Resources ResearchChinese Academy of SciencesBeijing 100101China college of resources and environment University of Chinese Academy of SciencesBeijing 100190China Center for Excellence in tibetan Plateau Earth Sciences Chinese Academy of SciencesBeijing 100101China Nagqu Agricultural and Animal Husbandry Science and Technology Research and Promotion Center Nagqu 852000China

不对称季节性增温,即冬季的温度增加明显高于夏季,已成为全球变暖的一个重要特征,尤其在寒冷和高海拔地区。过去的研究主要关注全年的温度增高,而对冬季增温的关注相对较少。然而,关于冬季增温对生态系统功能的影响存在显著的知识空缺... 详细信息

不对称季节性增温,即冬季的温度增加明显高于夏季,已成为全球变暖的一个重要特征,尤其在寒冷和高海拔地区。过去的研究主要关注全年的温度增高,而对冬季增温的关注相对较少。然而,关于冬季增温对生态系统功能的影响存在显著的知识空缺。为了解决这个问题,我们在青藏高原的高寒草甸进行了为期8年的控制增温实验,设置3种处理:自然对照、全年增温和冬季增温。结果发现,无论是全年增温还是冬季增温都没有显著改变群落水平的物种丰富度。值得注意的是,通过物种异步性,群落生物量的稳定性得以维持。然而,增温对植物丰度组(优势种、常见种和稀有种)产生了显著影响。具体而言,冬季增温增强了优势种的稳定性,这是通过增加优势种的物种异步性,即禾本科植物和非禾本科杂草植物之间发生了补偿动态来实现的。相反,全年增温降低了常见种的稳定性,这与常见种丰富度的增加和常见种中异步性的下降相关。因此,本研究强调了高寒草甸在不同增温条件下通过物种异步动态来维持群落生物量稳定性的能力,这些研究结果为理解青藏高原高寒草甸生态系统特征提供了新见解。

关键词：不对称季节性增温优势种生态水平物种异步性时间稳定性冬季增温

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模拟稻田生态系统对农村污水中磷的消纳

水土保持学报 2009年第4期23卷 28-32,67页

作者：袁俊吉马永玉蒋先军谢德体西南大学资源环境学院重庆400715

通过模拟试验研究了垄作、平作以及在不同施肥水平下,稻田生态系统对农村污水中磷的消纳效果。结果表明：TDP（总水溶性磷）浓度为2.0 mg/L的污水加入1 d后,稻田田面水中DRP（溶解态活性磷）和TDP浓度分别降低了22%-36%和6%-27%;3 d后,... 详细信息

通过模拟试验研究了垄作、平作以及在不同施肥水平下,稻田生态系统对农村污水中磷的消纳效果。结果表明：TDP（总水溶性磷）浓度为2.0 mg/L的污水加入1 d后,稻田田面水中DRP（溶解态活性磷）和TDP浓度分别降低了22%-36%和6%-27%;3 d后,DRP和TDP浓度分别降低了73%-89%和53%-66%。各处理田面水中DOP（溶解态有机磷）浓度在污水加入后均迅速上升,3 d后达到峰值0.21-0.30 mg/L;7 d后DOP浓度平均降至0.11 mg/L。田面水中磷素的形态特征,在水稻生长发育前期,田面水中TDP主要以DRP形式存在,在水稻生长发育中期DRP和DOP的含量基本相同;在水稻生长发育后期DRP的百分含量又有升高的趋势。各处理田面水中CODcr,BOD5在污水加入后均迅速上升,3 d后达到峰值（CODcr为64.2-90.0 mg/L,BOD5为2.09-2.76 mg/L）,7 d后CODcr,BOD5降至较低水平（CODcr平均为35.0 mg/L,BOD5平均为0.76 mg/L）并保持较长时间,但是在水稻生长发育后期CODcr有上升的趋势。相关分析表明田面水中DOP与BOD5之间存在良好的线性关系,达到极显著水平。

关键词：面源污染人工湿地垄作磷

高温条件对不同耕作模式紫色水稻土水、热、盐的影响

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草业学报 2024年第5期33卷 80-91页

作者：尹仲毅马黎华李兆磊冯桦蒋先军西南大学资源环境学院重庆400715 西南大学长江经济带农业绿色发展研究中心重庆400716

近年来,西南地区高温天气频发,高温带来稻田土壤温度的升高,进而带来稻田生境的改变。为了探究高温条件对紫色水稻土壤水、热、盐的影响,以及不同耕作模式下稻田对高温的应对策略,选取垄作(RT)、水旱平作(CT)、冬水田(FPF)3种耕作模式,... 详细信息

近年来,西南地区高温天气频发,高温带来稻田土壤温度的升高,进而带来稻田生境的改变。为了探究高温条件对紫色水稻土壤水、热、盐的影响,以及不同耕作模式下稻田对高温的应对策略,选取垄作(RT)、水旱平作(CT)、冬水田(FPF)3种耕作模式,针对不同耕作模式下0~10 cm、10~20 cm、20~40 cm、40~60 cm,4个土层的土壤温度、土壤含水率和土壤电导率进行了连续两年(2021-2022年)的原位监测。结果表明:在常温条件下,3种耕作模式0~40 cm土层的土壤温度无显著差异(P>0.05),土壤含水率与土壤电导率存在显著差异;在高温条件下,3种耕作模式土壤温度与土壤含水率在4个土层中均差异显著(PFPF>CT,土壤电导率为CT>FPF>RT。常温与高温条件下,3种耕作模式的土壤温度与电导率均呈显著正相关关系。高温会导致土壤温度,土壤电导率和土壤含水率耦合关系的改变。高温条件下,垄作稻田的土壤含水率最高,土壤电导率最低,体现了对高温条件更好的适应性。

关键词：高温垄作土壤温度土壤含水率土壤电导率

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滴施螯合态铁肥对酿酒葡萄光合特性及产量品质的影响

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西南农业学报 2024年第4期37卷 773-779页

作者：顾梅花解昊郡蒋鹏闫鹏科孙权宁夏大学农学院银川750021 东北农业大学资源与环境学院哈尔滨150030

[目的]探究滴施螯合态铁肥(EDTA-Fe)对宁夏贺兰山东麓酿酒葡萄光合特性、果实形态、产量及品质的影响,为宁夏贺兰山东麓酿酒葡萄的优质高产提供合理的铁肥用量。[方法]以4年生“马瑟兰”酿酒葡萄为试验材料,在常规施肥的基础上滴施EDTA-... 详细信息

[目的]探究滴施螯合态铁肥(EDTA-Fe)对宁夏贺兰山东麓酿酒葡萄光合特性、果实形态、产量及品质的影响,为宁夏贺兰山东麓酿酒葡萄的优质高产提供合理的铁肥用量。[方法]以4年生“马瑟兰”酿酒葡萄为试验材料,在常规施肥的基础上滴施EDTA-Fe,采用单因素多水平随机区组试验设计,设置4个不同EDTA-Fe滴施水平:7.50(T1)、15.00(T2)、22.50(T3)和30.00 kg/hm^(2)(T4),以常规施肥为对照(CK),测定酿酒葡萄叶片光合特性(SPAD值、胞间CO_(2)浓度、气孔导度、净光合速率和蒸腾速率)、果实形态(果穗长、粒径和百粒重)、产量及品质(可溶性固形物、可滴定酸、单宁、总酚和花色苷)等指标。[结果]滴施EDTA-Fe能有效改善酿酒葡萄光合特性,其中果实成熟期T2处理叶片SPAD值最高,较CK显著提高19.71%;T3处理的净光合速率、气孔导度和蒸腾速率最高,较CK分别显著提高87.03%、107.14%和76.25%;T1处理的胞间CO_(2)浓度最高,较CK显著提高57.56%。百粒重随EDTA-Fe浓度的增加而降低。T3处理的果实粒径、可溶性固形物、糖酸比、单宁和总酚含量最高,较CK分别提高10.99%、13.00%、19.16%、4.87%和15.23%;T1处理的花色苷含量最高;产量由高到低依次为T3>T2>T1>T4>CK,与CK相比,T1、T2、T3和T4处理的产量分别显著提高11.68%、16.57%、26.48%和8.96%;产值效益由高到低依次为T3>T2>T1>T4>CK,其中T1、T2、T3和T4处理较CK处理分别提高3577、5075、8133、2744元/hm^(2)。[结论]在贺兰山东麓葡萄酒产区滴施EDTA-Fe能有效促进酿酒葡萄叶片的光合特性,提高酿酒葡萄产量,提升酿酒葡萄品质,其中最佳EDTA-Fe施用量为22.5 kg/hm^(2)。

关键词：贺兰山东麓酿酒葡萄马瑟兰螯合铁产量品质

高职思政课程实践教学:价值意蕴、现状研判与疏解路径

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潍坊工程职业学院学报 2024年第4期37卷 12-17,27页

作者：王建滨陈军先蒋庆栋潍坊工程职业学院山东青州262500 战略支援部队信息工程大学密码工程学院兰州训练大队甘肃兰州730050

教育强国背景下职业教育现代化建设赋予了高职思政课程实践教学时代内涵。创新思政课程实践教学路径对于筑牢意识形态主阵地、提升职业教育质量和水平、促进大学生全面发展起着关键性作用。然而,思政课程实践教学过程中面临思政实践认... 详细信息

教育强国背景下职业教育现代化建设赋予了高职思政课程实践教学时代内涵。创新思政课程实践教学路径对于筑牢意识形态主阵地、提升职业教育质量和水平、促进大学生全面发展起着关键性作用。然而,思政课程实践教学过程中面临思政实践认知“不到位”、思政实践平台“不健全”和思政实践评价“不完善”等困境,赋能职业教育高质量发展的进度、广度和深度受挫。基于此,应加强思想引领,坚持理论教学与实践教学两手抓;多元协同,实现职业教育共同体资源优化配置;同时,因势利导,探索思政课程实践路径,重塑立德树人新生态,以期为高职思政课程教学改革提供借鉴和思路。

关键词：高职思政课程实践教育价值意蕴现状研判疏解路径

The 2022 report of synergetic roadmap on carbon neutrality and clean air for China:Accelerating transition in key sectors

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environmental Science and Ecotechnology 2024年第3期19卷 4-18页

作者： Yu Lei Zhicong Yin Xi Lu Qiang Zhang Jicheng Gong Bofeng Cai Cilan Cai Qimin Chai Huopo Chen Renjie Chen Shi Chen Wenhui Chen Jing Cheng Xiyuan Chi Hancheng Dai xiangzhao Feng Guannan Geng Jianlin Hu Shan Hu Cunrui Huang tiantian Li Wei Li Xiaomei Li jun Liu Xin Liu Zhu Liu Jinghui Ma Yue Qin Dan Tong Xuhui Wang Xuying Wang Rui Wu Qingyang Xiao Yang xie Xiaolong Xu Tao Xue Haipeng Yu Da Zhang Ning Zhang Shaohui Zhang Shaojun Zhang xian Zhang Xin Zhang Zengkai Zhang Bo Zheng Yixuan Zheng Jian Zhou Tong Zhu Jinnan Wang Kebin He Center of Air Quality Simulation and System Analysis Chinese Academy of Environmental PlanningBeijing100041China Center for Carbon Neutrality Chinese Academy of Environmental PlanningBeijing100041China Key Laboratory of Meteorological Disaster Ministry of Education/Joint International Research Laboratory of Climate and Environment Change(ILCEC)/Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters(CIC-FEMD)Nanjing University of Information Science&TechnologyNanjing210044China State Key Joint Laboratory of environment Simulation and Pollution Control School of EnvironmentTsinghua UniversityBeijing100084China Institute for Carbon Neutrality Tsinghua UniversityBeijing100084China Ministry of Education Key Laboratory for Earth System Modelling Department of Earth System ScienceTsinghua UniversityBeijing100084China State Key Joint Laboratory for environment Simulation and Pollution Control College of Environmental Sciences and Engineering and Center for Environment and HealthPeking UniversityBeijing100871China National Center for Climate Change Strategy and International CooperationBeijing100035China Nansen-Zhu International Research Centre Institute of Atmospheric PhysicsChinese Academy of SciencesBeijing100029China School of Public Health Key Lab of Public Health Safety of the Ministry of Education and Key Lab of Health Technology Assessment of the Ministry of HealthFudan UniversityShanghai200032China School of Economics and Management Beijing University of Chemical TechnologyBeijing100029China department of Earth System Science University of CaliforniaIrvineCA92697USA National Meteorological Center China Meteorological AdministrationBeijing100081China college of environmental Sciences and Engineering Peking UniversityBeijing100871China Policy Research Center for environment and Economy Ministry of Ecology and Environment of the People's Republic of ChinaBeijing100029China jiangsu Key Laboratory of Atmospheric environment Monitoring

China is now confronting the intertwined challenges of air pollution and climate *** the high synergies between air pollution abatement and climate change mitigation,the Chinese government is actively promoting synergetic control of these two *** Synergetic roadmap project was launched in 2021 to track and analyze the progress of synergetic control in China by developing and monitoring key *** Synergetic roadmap 2022 report is the first annual update,featuring 20 indicators across five aspects:synergetic governance system and practices,progress in structural transition,air pollution and associated weather-climate interactions,sources,sinks,and mitigation pathway of atmospheric composition,and health impacts and benefits of coordinated *** to the comprehensive review presented in the 2021 report,the Synergetic roadmap 2022 report places particular emphasis on progress in 2021 with highlights on actions in key sectors and the relevant *** milestones include the proportion of non-fossil power generation capacity surpassing coal-fired capacity for the first time,a decline in the production of crude steel and cement after years of growth,and the surging penetration of electric ***,in 2022,China issued the first national policy that synergizes abatements of pollution and carbon emissions,marking a new era for China's pollution-carbon *** changes highlight China's efforts to reshape its energy,economic,and transportation structures to meet the demand for synergetic control and sustainable ***,the country has witnessed a slowdown in carbon emission growth,improved air quality,and increased health benefits in recent years.

关键词： Synergetic roadmap Carbon neutrality Clean air