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Impact of Urban 3D Morphology on Particulate Matter 2.5(PM2.5) Concentrations:Case Study of Beijing, China

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Chinese Geographical Science 2020年第2期30卷 294-308页

作者： LUAN Qingzu JIANG Wei LIU Shuo guo hongxiang Institute of Urban Meteorology China Meteorological AdministrationBeijing 100089China Beijing Municipal Climate Center Beijing 100089China China Institute of Water Resources and Hydropower Research Beijing 100038China Research Center of Flood and Drought Disaster Reduction of the Ministry of Water Resources Beijing 100038China Aerospace Information Research Institute Chinese Academy of SciencesBeijing 100094China University of Chinese Academy of Sciences Beijing 100049China

Urban particulate matter 2.5(PM2.5)pollution and public health are closely related,and concerns regarding PM2.5 are *** the underlying factors,the urban morphology is the most ***,investigations of the impact of urban three-dimensional(3D)morphology on PM2.5 concentration have important scientific *** this paper,39 PM2.5 monitoring sites of Beijing in China were selected with PM2.5 automatic monitoring data that were collected in *** data set was used to analyze the impacts of the meteorological condition and public transportation on PM2.5 *** on the elimination of the meteorological conditions and public transportation factors,the relationships between urban 3D morphology and PM2.5 concentrations are *** urban 3D morphology indices were established to explore the spatial-temporal correlations between the indices and PM2.5 concentrations and analyze the impact of urban 3D morphology on the PM2.5 *** demonstrated that road length density(RLD),road area density(RAD),construction area density(CAD),construction height density(CHD),construction volume density(CVD),construction otherness(CO),and vegetation area density(VAD)have positive impacts on the PM2.5 concentrations,whereas water area density(WAD),water fragmentation(WF),and vegetation fragmentation(VF)(except for the 500 m buffer)have negative impacts on the PM2.5 ***,the correlations between the morphology indices and PM2.5 concentrations varied with the buffer *** findings could lay a foundation for the high-precision spatial-temporal modelling of PM2.5 concentrations and the scientific planning of urban 3D spaces by authorities responsible for controlling PM2.5 concentrations.

关键词： urban three-dimensional(3D)morphology particulate matter 2.5(PM2.5) air pollution urban planning Beijing,China

普通烟草NtZIP基因家族鉴定及镉胁迫下其表达分析

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植物生理学报 2024年第7期60卷 1105-1118页

作者：邓兆龙孔嘉欣李俊营吴圣江刘磊郭红祥王明鑫金维环河南农业大学生命科学学院郑州450002 河南省烟草公司平顶山市公司河南平顶山467000 河南华测检测技术有限公司郑州450002

植物锌铁转运蛋白ZIP主要参与调节必需金属元素的动态平衡,也参与镉(Cd)等重金属的吸收和转运。本研究运用生物信息学方法,从普通烟草(Nicotiana tabacum)基因组中共鉴定出33个NtZIP基因家族成员,其中11个成员定位在7条染色体上。亚细... 详细信息

植物锌铁转运蛋白ZIP主要参与调节必需金属元素的动态平衡,也参与镉(Cd)等重金属的吸收和转运。本研究运用生物信息学方法,从普通烟草(Nicotiana tabacum)基因组中共鉴定出33个NtZIP基因家族成员,其中11个成员定位在7条染色体上。亚细胞定位预测表明,26个NtZIP蛋白定位于细胞膜上,7个NtZIP蛋白定位于液泡膜上。通过邻接法,将33个NtZIP家族成员分为4个亚家族。启动子分析表明,NtZIP家族基因启动子区都含有非生物胁迫和激素相关的顺式作用元件。Cd胁迫下,荧光定量PCR结果表明,烟草NtZIP基因家族有9个成员在根中对Cd显著应答,与转录组数据基本一致,但随着Cd浓度的改变,NtZIP家族成员也出现了差异化表达,推测在烟草中NtZIP参与Cd的吸收与转运。

关键词：普通烟草 ZIP蛋白基因家族分析镉胁迫

植物FHY3/FAR1转录因子作用机制的研究进展

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植物生理学报 2024年第9期60卷 1413-1423页

作者：孔嘉欣邓兆龙郭红祥李俊营王明鑫吴艳莹河南农业大学生命科学学院郑州450046 河南省烟草公司平顶山市公司河南平顶山467000

作为一类起源于转座酶的转录因子, FHY3 (FAR-RED ELONGATED HYPOCOTYL 3)及其同源蛋白FAR1 (FAR-RED IMPAIRED RESPONSE 1)被普遍认为是光信号转导途径的重要组成成分之一。此类蛋白在结构上包括一个分布在N端的C2H2型锌指DNA结合域、... 详细信息

作为一类起源于转座酶的转录因子, FHY3 (FAR-RED ELONGATED HYPOCOTYL 3)及其同源蛋白FAR1 (FAR-RED IMPAIRED RESPONSE 1)被普遍认为是光信号转导途径的重要组成成分之一。此类蛋白在结构上包括一个分布在N端的C2H2型锌指DNA结合域、一个分布在C端的SWIM锌指激活结构域以及核心转座酶结构域。FHY3/FAR1转录因子家族广泛参与植物体一系列生长发育过程,介导植物逆境响应,在调控生长发育维持植物内稳态中发挥重要作用。本文主要总结了近年来FHY3/FAR1转录因子家族在调控网络中的研究进展,并对该家族参与的逆境应答展开讨论,以期为相关领域的研究提供参考。

关键词： FHY3/FAR1 生长发育逆境转录因子

烟草NtPXG基因克隆、表达特征及其功能分析

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河南农业大学学报 2024年第5期58卷 736-745页

作者：金维环王权王昊阳刘磊丁超王明鑫李俊营郭红祥河南农业大学生命科学学院河南郑州450002 河南省烟草公司平顶山市公司河南平顶山467000

【目的】克隆烟草氧脂素合成关键基因NtPXG,探究该基因对生物/非生物胁迫以及植物生长调节剂的响应,为解析NtPXG基因响应烟草花叶病毒(tobacco mosaic virus,TMV)的作用机制提供参考。【方法】利用同源克隆法克隆NtPXG基因,采用生物信... 详细信息

【目的】克隆烟草氧脂素合成关键基因NtPXG,探究该基因对生物/非生物胁迫以及植物生长调节剂的响应,为解析NtPXG基因响应烟草花叶病毒(tobacco mosaic virus,TMV)的作用机制提供参考。【方法】利用同源克隆法克隆NtPXG基因,采用生物信息学方法分析基因结构与蛋白质性质;通过qRT-PCR对不同发育期的组织以及机械损伤、干旱、不同植物生长调节剂处理下烟草NtPXG基因的表达模式进行分析;利用叶盘转化法获得过表达NtPXG基因烟草后,进行基因功能分析。【结果】NtPXG基因长度为744 bp,共编码247个氨基酸;NtPXG基因的表达模式分析显示,其在烟草不同时期部位的表达量具有明显的组织和发育特异性,对不同的非生物胁迫和植物生长调节剂也会产生响应;NtPXG基因过表达烟草表现出明显的TMV抗性。【结论】烟草NtPXG基因不仅参与烟草的生长发育,同时也参与烟草对生物胁迫和非生物胁迫的响应,推测NtPXG基因可能通过植物生长调节剂信号响应外界的胁迫。通过烟草中过表达NtPXG基因;证明了NtPXG基因可通过JA信号通路抑制TMV的增殖。

关键词：烟草氧脂素生物和非生物胁迫 NtPXG基因植物生长调节剂信号

Effect of Calcium Chloride Addition on Properties of Corundum Spinel Castable

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China's Refractories 2020年第4期29卷 46-49页

作者： guo hongxiang SUN Xiaogai JIA Quanli LI Xueyan LIU Xinhong Henan Key Laboratory of High Temperature Functional Ceramics Zhengzhou UniversityZhengzhou 450052China Henan Hongda Furnace Industry Co. Ltd.Zhengzhou 450000China

Corundum spinel castable was prepared using tabular corundum as aggregates,white fused corundum powder,spinel powder and alumina powder as the matrix,pure calcium aluminate cement as a binder,and extra adding calcium chloride(0,1%,2%,and 3%,by mass).The effects of the CaCl2 addition on the cold physical properties,the hot strength,the thermal shock resistance and the microstructure of the castable were *** results show that,for the corundum spinel castable fired at 1550℃,with the increase of the CaCl2 addition from 0 to 3%,the cold strengthes first increase,then decrease,the apparent porosity increases,the volume density decreases,and the linear change rate first decreases and then increases,while the overall change is not significant;however,the hot modulus of rupture and the thermal shock resistance are obviously *** is mainly due to that,CaCl2 is evenly distributed in the castable in the form of solution,and reacts with Al2O3 to form small flake CA6 crystals,which evenly distributed in the sample matrix strengthening and toughening the material.

关键词： corundum spinel castable calcium chloride calcium hexaluminate strength thermal shock resistance

Runoff change in the Yellow River Basin of China from 1960 to 2020 and its driving factors

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Journal of Arid Land 2024年第2期16卷 168-194页

作者： WANG Baoliang WANG hongxiang JIAO Xuyang HUANG Lintong CHEN Hao guo Wenxian School of Water Conservancy North China University of Water Resources and Electric PowerZhengzhou 450046China College of Water Resources North China University of Water Resources and Electric PowerZhengzhou 450046China

Analysing runoff changes and how these are affected by climate change and human activities is deemed crucial to elucidate the ecological and hydrological response mechanisms of *** Indicators of Hydrologic Alteration and the Range of Variability Approach(IHA-RVA)method,as well as the ecological indicator method,were employed to quantitatively assess the degree of hydrologic change and ecological response processes in the Yellow River Basin from 1960 to *** Budyko's water heat coupling balance theory,the relative contributions of various driving factors(such as precipitation,potential evapotranspiration,and underlying surface)to runoff changes in the Yellow River Basin were quantitatively *** results show that the annual average runoff and precipitation in the Yellow River Basin had a downwards trend,whereas the potential evapotranspiration exhibited an upwards trend from 1960 to *** approximately 1985,it was reported that the hydrological regime of the main stream underwent an abrupt *** degree of hydrological change was observed to gradually increase from upstream to downstream,with a range of 34.00%-54.00%,all of which are moderate ***,significant differences have been noted among different ecological indicators,with a fluctuation index of 90.00%at the outlet of downstream hydrological stations,reaching a high level of *** the mutation,the biodiversity index of flow in the middle and lower reaches of the Yellow River was generally lower than that in the base *** research results also indicate that the driving factor for runoff changes in the upper reach of the Yellow River Basin is mainly precipitation,with a contribution rate of 39.31%-54.70%.Moreover,the driving factor for runoff changes in the middle and lower reaches is mainly human activities,having a contribution rate of 63.70%-84.37%.These results can serve as a basis to strengthen the protection and restoration efforts in the Yellow River Basin

关键词： Budyko theory hydrological regime attribution analysis ecological responses Yellow River climate change human activity runoff

Integrated LOBS/GMPLS Network Testbed

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China Communications 2010年第3期7卷 11-23页

作者： Wu Jian Hong Xiaobin guo hongxiang Zhang Wenjia Liu Lei Takehiro Tsuritani Tomohiro Otani Masatoshi Suzuki Lin Jintong Key Laboratory of Information Photonics and Optical Communications （Ministry of Education） Beijing University of Posts and Telecommunications Beijing 100876 P. R. China KDDI R＆D Laboratories Inc. 2-1-15 Ohara Fujimino-shi Saitama 356-8502 Japan

In the context of dynamic telecommunication traffic requirement, experimental prototypes and testbeds have been vital and challenging steps towards achieving practical OBS networks. This paper presents the novel integrated LOBS/GMPLS network testbed. Dynamic interworking technologies between GMPLS network and LOBS network and potential survivability schemes in this multilayer network are investigated by experimentally evaluating the TCP and popular streaming media service performance over an integrated LOBS/ GMPLS testbed.

关键词： LOBS GMPLS testbed

不同钾肥对水肥一体化下烤烟碳氮代谢与钾吸收的影响

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陕西农业科学 2024年第8期70卷 85-90页

作者：王明鑫邓兆龙孔嘉欣金维环李俊营郭红祥河南省烟草公司平顶山市公司河南平顶山467002 河南农业大学生命科学学院河南郑州450002

为解决平顶山烟区烤烟钾含量偏低的问题,以烤烟品种中烟100为材料,基于水肥一体化栽培管理,研究了不同钾肥对烤烟碳氮代谢与钾吸收的影响。结果表明:配合水肥一体化四次追施自制钾肥,以及施用缓释钾肥和生物钾肥都能提高烟株光合能力与... 详细信息

为解决平顶山烟区烤烟钾含量偏低的问题,以烤烟品种中烟100为材料,基于水肥一体化栽培管理,研究了不同钾肥对烤烟碳氮代谢与钾吸收的影响。结果表明:配合水肥一体化四次追施自制钾肥,以及施用缓释钾肥和生物钾肥都能提高烟株光合能力与碳氮代谢水平,促进烟株生长发育,促进效应依次是缓释钾肥>生物钾肥>自制钾肥。施用不同种类钾肥能够提高烟株体内SOD等保护酶的活性,增强烤烟抗性,这种促进效应的基本顺序是生物钾肥>缓释钾肥>自制钾肥。钾代谢相关基因表达分析表明,这三种钾肥的合理使用能够有效促进钾的吸收与转运、减少钾的外排,进而增加烟株中钾的储存。配合水肥一体化四次追施自制钾肥和施用缓释钾肥两个处理对中上部烟叶钾含量有明显的提升作用。

关键词：烤烟钾肥碳氮代谢钾吸收钾含量

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社会经济统计数据空间化研究进展

地理学报 2022年第10期77卷 2650-2667页

作者：郭红翔朱文泉北京师范大学地理科学学部遥感科学国家重点实验室北京100875 北京师范大学地理科学学部遥感科学与工程研究院北京市陆表遥感数据产品工程技术研究中心北京100875

社会经济统计数据通常是以各级行政区为单位的汇总数据,它虽然能反映统计单元之间的差异但却不能反映统计单元内部的异质性,在实际应用中,无法满足统计任意区域内的社会经济数据的需求,而社会经济统计数据空间化则是有效解决该问题的一... 详细信息

社会经济统计数据通常是以各级行政区为单位的汇总数据,它虽然能反映统计单元之间的差异但却不能反映统计单元内部的异质性,在实际应用中,无法满足统计任意区域内的社会经济数据的需求,而社会经济统计数据空间化则是有效解决该问题的一条重要途径。本文对现有社会经济统计数据的空间化方法、社会经济统计数据空间化过程所依赖的辅助数据、现有主要的社会经济空间化数据产品进行了归纳总结,并从空间化方法的制约因素和改进方向、新型辅助数据的探索和多源辅助数据的综合利用、高时空分辨率和高精度数据产品研发3个方面展望了社会经济统计数据空间化的未来发展趋势。研究结果可为社会经济统计数据空间化方法的选择与改进、辅助数据的选择与综合利用、社会经济空间化数据产品的选择与改进提供参考。

关键词：社会经济数据空间化人口 GDP 数据产品