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Geography and Sustainability 2022年第1期3卷 32-43页

作者： Huizong Yao Chuanfu Zang Xiaoxing Zuo Yuyang Xian Yongquan Lu Yutong Huang xianbing li Chinese Research Academy of Environmental Sciences Beijing 100012China School of Geography South China Normal UniversityGuangzhou 510631China South University of Science and Technology of China Shenzhen 518055China

China is the world’s largest consumer of pork and ***,African swine fever(ASF)and the COVID-19 outbreak have greatly impacted the pork supply and food security in *** can food security and the pork supply be ensured under the dual impacts of COVID-19 and ASF?This is a major problem to be urgently solved by the Chinese *** study indicated that the main pork production and sales areas in China were separated,which reflected the spatial imbalance between the supply and *** total area of suitable selected sites for pig farms in China is 21.5 million *** only the areas with levels of high and moderate suitability are considered as potential sites for pig farms,the potential pork production can reach 56.1 million tons in China,which is slightly lower than *** to the impact of the ASF epidemic,the food consumed by pigs has been reduced by 34.7 million ***,with increasing pork productivity in the future,the self-sufficiency rate of grains may further *** the premise that the quality of people’s life is not affected,the diversification of meat supply channels should be realized in an orderly and sustainable way,which might alleviate the pressure on food *** study provides a theoretical reference for the spatiotemporal layout of the swine industry and addresses the issue of food security in China under the influence of ASF and the COVID-19 outbreak.

关键词： African swine fever COVID-19 outbreak Suitability analysis Food security Pork production potential

Plant virology in the 21st century in China:Recent advances and future directions

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Journal of Integrative Plant Biology 2024年第3期66卷 579-622页

作者： Jianguo Wu Yongliang Zhang Fangfang li Xiaoming Zhang Jian Ye Taiyun Wei Zhenghe li Xiaorong Tao Feng Cui xianbing Wang lili Zhang Fei Yan Shifang li Yule liu Dawei li Xueping Zhou Yi li State Key Laboratory for Ecological Pest Control of Fujian and Taiwan Crops Vector-borne Virus Research CenterCollege of Plant ProtectionFujian Agriculture and Forestry UniversityFuzhou 350002China State Key Laboratory of Plant Environmental Resilience and Ministry of Agriculture Key Laboratory of Soil Microbiology College of Biological SciencesChina Agricultural UniversityBeijing 100193China State Key Laboratory for Biology of Plant Diseases and Insect Pests Institute of Plant ProtectionChinese Academy of Agricultural SciencesBeijing 100193China State Key Laboratory of Integrated Management of Pest Insects and Rodents Institute of ZoologyChinese Academy of SciencesBeijing 100101China CAS Center for Excellence in Biotic Interactions University of Chinese Academy of SciencesBeijing 100049China State Key Laboratory of Plant Genomics Institute of MicrobiologyChinese Academy of SciencesBeijing 100101China State Key Laboratory of Rice Biology Institute of BiotechnologyZhejiang UniversityHangzhou 310058China Department of Plant Pathology The Key Laboratory of Plant ImmunityNanjing Agricultural UniversityNanjing 210095China State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products Institute of Plant VirologyNingbo UniversityNingbo 315211China MOE Key Laboratory of Bioinformatics Center for Plant BiologySchool of Life SciencesTsinghua UniversityBeijing 100084China State Key Laboratory of Protein and Plant Gene Research School of Life SciencesPeking UniversityBeijing 100871China

Plant viruses are a group of intracellular pathogens that persistently threaten global food *** advances in plant virology have been achieved by Chinese scientists over the last 20 years,including basic research and technologies for preventing and controlling plant viral ***,we review these milestones and advances,including the identification of new crop-infecting viruses,dissection of pathogenic mechanisms of multiple viruses,examination of multilayered interactions among viruses,their host plants,and virus-transmitting arthropod vectors,and in-depth interrogation of plantencoded resistance and susceptibility ***,various plant virus-based vectors have also been successfully developed for gene function studies and target gene expression in *** also recommend future plant virology studies in China.

关键词： China emerging plant viruses plant virology plant resistance/susceptibility to viral infection plant-virus transmission vector interactions plant virus-based vectors viral pathogenesis

Characterization and spatial analysis of coseismic landslides triggered by the Luding Ms 6.8 earthquake in the Xianshuihe fault zone, Southwest China

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Journal of Mountain Science 2024年第1期21卷 160-181页

作者： GUO Changbao li Caihong YANG Zhihua NI Jiawei ZHONG Ning WANG Meng YAN Yiqiu SONG Deguang ZHANG Yanan ZHANG xianbing WU Ruian CAO Shichao SHAO Weiwei Institute of Geomechanics Chinese Academy of Geological SciencesBeijing 100081China Key Laboratory of Active Tectonics and Geological Safety Ministry of Natural ResourcesBeijing 100081China Research Center of Neotectonism and Crustal Stability China Geological SurveyBeijing 100081China School of Earth Sciences and Resources China University of GeosciencesBeijing 100083China Sichuan Institute of Geological Survey Chengdu 610081China

On September 5, 2022, a magnitude Ms 6.8 earthquake occurred along the Moxi fault in the southern part of the Xianshuihe fault zone located in the southeastern margin of the Tibetan Plateau,resulting in severe damage and substantial economic loss. In this study, we established a coseismic landslide database triggered by Luding Ms 6.8 earthquake, which includes 4794 landslides with a total area of 46.79 km^(2). The coseismic landslides primarily consisted of medium and small-sized landslides, characterized by shallow surface sliding. Some exhibited characteristics of high-position initiation resulted in the obstruction or partial obstruction of rivers, leading to the formation of dammed lakes. Our research found that the coseismic landslides were predominantly observed on slopes ranging from 30° to 50°, occurring at between 1000 m and 2500 m, with slope aspects varying from 90° to 180°. Landslides were also highly developed in granitic bodies that had experienced structural fracturing and strong-tomoderate weathering. Coseismic landslides concentrated within a 6 km range on both sides of the Xianshuihe and Daduhe fault zones. The area and number of coseismic landslides exhibited a negative correlation with the distance to fault lines, road networks, and river systems, as they were influenced by fault activity, road excavation, and river erosion. The coseismic landslides were mainly distributed in the southeastern region of the epicenter, exhibiting relatively concentrated patterns within the IX-degree zones such as Moxi Town, Wandong River basin, Detuo Town to Wanggangping Township. Our research findings provide important data on the coseismic landslides triggered by the Luding Ms 6.8 earthquake and reveal the spatial distribution patterns of these landslides. These findings can serve as important references for risk mitigation, reconstruction planning, and regional earthquake disaster research in the earthquake-affected area.

关键词： Luding earthquake Coseismic landslides Remote sensing interpretation Spatial distribution Xianshuihe fault Earthquake fault

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多煤层夹断层影响下隧道开挖进尺分析

现代隧道技术 2019年第S2期56卷 355-361页

作者：李现宾王磊中铁二院工程集团有限责任公司成都610031

本文以西南地区某特长瓦斯公路隧道为依托,建立三维数值计算模型,分析多煤层夹断层影响下,隧道的不同开挖进尺对围岩变形的影响。研究结果表明:开挖进尺小于一定值时,进尺越小,围岩最终变形量越大;进尺小,开挖后对围岩的扰动"积累"就越... 详细信息

本文以西南地区某特长瓦斯公路隧道为依托,建立三维数值计算模型,分析多煤层夹断层影响下,隧道的不同开挖进尺对围岩变形的影响。研究结果表明:开挖进尺小于一定值时,进尺越小,围岩最终变形量越大;进尺小,开挖后对围岩的扰动"积累"就越大。当开挖进尺大于一定值后,拱顶沉降随进尺增加而变大,由于进尺太大,开挖后短时间沉降值已经远远大于受前方围岩开挖的扰动所影响的沉降积累;而且进尺越大,当前开挖步位移占总位移的比例也越大。同时根据数值模拟结果,提出了合理的开挖进尺并且对断层煤层段施工安全给出建议。

关键词：公路隧道数值模拟断层煤层开挖进尺围岩变形

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输电铁塔用角钢的应用及低温服役性能研究

中国电机工程学报 2013年第1期33卷 117-122页

作者：杨富尧李现兵陈新韩钰聂京凯李正林群中国电力科学研究院电工与新材料研究所北京市海淀区100192 温州电业局浙江省温州市325005

随着中国超特高压输变电工程的迅速发展，输电铁塔用钢的强度等级与发达国家的差距正逐步缩小。然而，国内由于低温引起的倒塔事件却时有发生，铁塔用钢的低温服役能力问题越来越受到关注。该文阐述了输电铁塔用钢的低温服役能力及应用... 详细信息

随着中国超特高压输变电工程的迅速发展，输电铁塔用钢的强度等级与发达国家的差距正逐步缩小。然而，国内由于低温引起的倒塔事件却时有发生，铁塔用钢的低温服役能力问题越来越受到关注。该文阐述了输电铁塔用钢的低温服役能力及应用现状，对中国输电铁塔用角钢Q235、Q345及Q420抽样进行室温拉伸和低温冲击性能测试，研究了-75～25℃温度区间角钢的韧脆转变趋势。结果表明：3种角钢的拉伸性能均达到GB／T1591-2008要求；冲击功均随温度升高而增加，Q235及Q345的冲击韧性较好，分别在一5和一15℃时平均冲击功达到34J；Q420在试验温度区间内一直处于脆断状态，25℃冲击功仍小于30J。

关键词：输电铁塔低温角钢冲击韧性韧脆转变温度

Crop antiviral defense: Past and future perspective

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Science China life Sciences 2024年

作者： Zhirui Yang Guangyao li Yongliang Zhang Fangfang li Tao Zhou Jian Ye xianbing Wang Xiaoming Zhang Zongtao Sun Xiaorong Tao Ming Wu Jianguo Wu Yi li The State Key Laboratory of Protein and Plant Gene Research School of Life Sciences Peking University State Key Laboratory of Plant Environmental Resilience Frontiers Science Center for Molecular Design Breeding College of Biological Sciences China Agricultural University State Key Laboratory for Ecological Pest Control of Fujian and Taiwan Crops Vector-borne Virus Research Center College of Plant Protection Fujian Agriculture and Forestry University State Key Laboratory for Biology of Plant Diseases and Insect Pests Institute of Plant Protection Chinese Academy of Agricultural Sciences State Key Laboratory for Agro-Biotechnology and Department of Plant Pathology China Agricultural University State Key Laboratory of Plant Genomics Institute of Microbiology Chinese Academy of Sciences State Key Laboratory of Integrated Management of Pest Insects and Rodents Institute of Zoology Chinese Academy of SciencesCAS Center for Excellence in Biotic Interactions University of Chinese Academy of Sciences State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products Key Laboratory of Biotechnology in Plant Protection of MARA and Zhejiang Province Institute of Plant Virology Ningbo University Department of Plant Pathology The Key Laboratory of Plant Immunity Nanjing Agricultural University

Viral pathogens not only threaten the health and life of humans and animals but also cause enormous crop yield losses and contribute to global food insecurity. To defend against viral pathogens, plants have evolved an intricate immune system to perceive and cope with such attacks. Although most of the fundamental studies were carried out in model plants, more recent research in crops has provided new insights into the antiviral strategies employed by crop plants. We summarize recent advances in understanding the biological roles of cellular receptors, RNA silencing, RNA decay, hormone signaling, autophagy, and ubiquitination in manipulating crop host-mediated antiviral responses. The potential functions of circular RNAs, the rhizosphere microbiome, and the foliar microbiome of crops in plant-virus interactions will be fascinating research directions in the future. These findings will be beneficial for the development of modern crop improvement strategies.

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NiCrMo涂层在750℃硫酸盐中的热腐蚀行为

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稀有金属材料与工程 2006年第A2期35卷 335-338页

作者：董娜蒋建敏贺定勇傅斌友李现兵北京工业大学北京100022

针对石油及化工设备在苛刻高温腐蚀条件下工作,其零件腐蚀破坏日益严重的现状,采用Q235钢为基体材料,对自行研制的NiCrMo涂层在750℃涂盐腐蚀中的热腐蚀行为进行了研究,并与母材Q235钢的性能进行了比较。采用金相显微镜、配有能谱分析... 详细信息

针对石油及化工设备在苛刻高温腐蚀条件下工作,其零件腐蚀破坏日益严重的现状,采用Q235钢为基体材料,对自行研制的NiCrMo涂层在750℃涂盐腐蚀中的热腐蚀行为进行了研究,并与母材Q235钢的性能进行了比较。采用金相显微镜、配有能谱分析仪的扫描电镜以及X射线衍射仪等检测设备对腐蚀产物的形貌和相组成等进行了分析。结果表明,在母材Q235钢表面涂覆层镍铬含量一定,有适当钼的NiCrMo涂层时,能形成对涂层进行保护的氧化膜,提高母材Q235钢的耐高温热腐蚀性能。这种镍基合金制备成涂层具有优良的抗热腐蚀性能,适于作为石油化工设备的防护材料。

关键词： NiCrMo涂层硫酸盐热腐蚀行为

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中日经济腾飞期客观经济环境相似性比较研究

日本研究 2008年第4期 49-53页

作者：李献兵邹晓勇四川大学经济学院

中日两国是东亚地区相邻的两个大国,在经济腾飞期的客观经济环境存在很多相似性。本文从四个方面对中日经济腾飞期经济指标相似性进行了比较研究。

关键词：中国日本经济发展客观环境经济环境

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棉花良种科技产业化体系研究与应用

农业技术经济 2000年第1期 44-47页

作者：张同树李先兵张瑞湖北省荆州农业科学院华中农业大学经贸学院

一、立题背景湖北省是中国主要产棉省份之一,常年棉花种植面积700万亩左右,年需棉花种子1000万公斤以上,棉花生产主栽品种主要是荆州农科院等科研单位选育的品种.

关键词：棉花良种技术产业化

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花岗岩潜山裂缝型储层多尺度建模与应用

石油地球物理勘探 2023年第2期58卷 403-411页

作者：姜晓宇宋涛甘利灯杜文辉李贤兵徐雷中国石油勘探开发研究院北京100083 北京杰瑞特斯石油技术有限公司北京100083

当前对花岗岩裂缝型储层的表征尚未形成系统、完善的方法,受风化、岩性、构造等多种因素影响,花岗岩储层内部孔、缝、洞发育,具有极强的非均质性,更增加了对其表征的难度。为此,以乍得花岗岩潜山B油田为例,提出一种多尺度裂缝建模方法,... 详细信息

当前对花岗岩裂缝型储层的表征尚未形成系统、完善的方法,受风化、岩性、构造等多种因素影响,花岗岩储层内部孔、缝、洞发育,具有极强的非均质性,更增加了对其表征的难度。为此,以乍得花岗岩潜山B油田为例,提出一种多尺度裂缝建模方法,该方法将确定性建模与随机建模方法相结合,运用叠前全方位AVAZ反演裂缝预测结果和叠后蚂蚁追踪裂缝预测成果,在裂缝地震相的控制下,分别建立小尺度裂缝和大尺度裂缝模型,前者可得到各向异性参数及裂缝密度、方向等参数,通过这些参数对裂缝型储层进行识别及评价,后者在地震数据上进行裂缝片的识别与追踪,识别出的每根裂缝具有可度量的长度和方向;然后利用等效裂缝模型实现对裂缝渗透率的定量表征;紧密结合地震叠后、叠前全方位地震数据裂缝预测成果与开发地质,并充分融合测井、地质、钻井、生产等资料,形成综合反映不同尺度裂缝信息的系统裂缝模型。该裂缝模型为开发井优化部署提供了技术依据,多尺度裂缝模型等效渗透率计算结果更符合流体渗流特征,为开发油藏数值模拟奠定了基础。

关键词：多尺度裂缝建模叠前全方位裂缝预测蚂蚁追踪等效裂缝模型

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