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Synergetic variations of active layer soil water and salt in a permafrost-affected meadow in the headwater area of the Yellow River,northeastern Qinghai-Tibet plateau

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International Soil and Water Conservation Research 2022年第2期10卷 284-292页

作者： Qingfeng Wang Huijun Jin ziqiang yuan Chengsong Yang State Key Laboratory of Frozen Soil Engineering Northwest Institute of Eco-Environment and ResourcesChinese Academy of Sciences(CAS)320 Donggang West RoadLanzhouGansu Province730000China School of Civil Engineering Northeast-China Observatory and Research-Station of Permafrost Geo-Environment(Ministry of Education)Institute of Cold-Regions Engineering and EnvironmentNortheast Forestry University26 Hexing RoadHarbinHeilongjiang Province150040China State Key Laboratory of Grassland Agro-Ecosystem Institute of Arid Agro-EcologySchool of Life SciencesLanzhou UniversityLanzhouGansu730000China

The coupling effects and mechanisms of water,heat,and salt in frozen soils are considered to be one of the core scientific issues in frozen soil *** study was based on in situ observation data of active layer soil volumetric water content(VWC),temperature,and bulk electrical conductivity(EC)obtained at an alpine meadow site from October 2016 to November *** site is located in the headwater area of the Yellow River(HAYR).We analyzed the synergetic variations of active layer soil VWC,temperature,and bulk EC during the freeze and thaw processes and discussed the underlying *** the thaw process occurred from 10 to 80 cm depths,the VWC and bulk EC at a 10 cm depth showed syn-chronous high-frequency fluctuations and both increased *** linear decreasing rate of the VWC(bulk EC)at an 80 cm depth in the freeze depths between 0 and 40 cm was 2(1.6e2.3)times that of the VWC(bulk EC)at an 80 cm depth in the freeze depths occurring 0e10 *** soil temperature decreased in the frozen layer,unfrozen water content(bulk EC)decreased nonlinearly along with the absolute value of soil temperature(|T|),following a power(logarithmic)*** study provided data that partly elucidate the interactions among permafrost,meadow,and ecohydrological processes in the ***,our results can be used as a scientific basis for decision making on the protection and restoration of alpine grasslands,as well as for soil salinization studies.

关键词： Freeze and thaw process Active layer Soil water Bulk electrical conductivity Yellow river

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江河源冻土区土壤碳氮空间分布特征及其影响因素

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生态学报 2024年第12期44卷 5246-5258页

作者：李世珍袁自强林琳陈方方王金牛高怡婷雷汶杰刘佳彭贻菲沈琦金会军罗栋梁中国科学院西北生态环境资源研究院冻土工程国家重点实验室兰州730000 中国科学院大学北京100049 兰州大学生态学院兰州730000 清华大学地球系统科学系北京100084 中国科学院成都生物研究所成都610041 辽宁工程技术大学测绘与地理科学学院阜新123000 兰州交通大学测绘与地理信息学院兰州730070 东北林业大学土木工程学院哈尔滨150040

江河源区是我国高寒生态安全屏障的重要区域,冻土的长期存在使其形成低温冻结环境,弱化了土壤微生物活性,抑制了土壤有机质的矿化过程,因而其近地表浅层土壤碳氮含量高。然而,土壤碳氮含量对不同冻土分区和环境因素响应的空间分异规律... 详细信息

江河源区是我国高寒生态安全屏障的重要区域,冻土的长期存在使其形成低温冻结环境,弱化了土壤微生物活性,抑制了土壤有机质的矿化过程,因而其近地表浅层土壤碳氮含量高。然而,土壤碳氮含量对不同冻土分区和环境因素响应的空间分异规律尚不清楚。为此,针对江河源4个不同冻土区(季节冻土区、岛状多年冻土区、不连续多年冻土区、片状连续多年冻土区)共11个样点进行植被样方调查、土壤分层采样。在分析碳氮含量的基础上,探讨了年均地温(MAGT)、活动层厚度(ALT)、海拔(ASL)、土壤深度(SD)、植被特征及土壤pH对土壤有机碳(SOC)、全氮(TN)、碳氮比(C/N)的影响。结果表明:(1)SOC、TN、C/N在片状连续多年冻土区最高,在季节冻土区最低,且与年均地温负相关,和海拔正相关;(2)江河源区SOC、TN、C/N随土壤深度的增加而降低,自表层至40cm深度整体下降幅度分别为58.45%、36.96%、17.01%;(3)SOC、TN、C/N与植被覆盖度(FVC)显著正相关(P≤0.05),与土壤pH值显著负相关(P≤0.01);(4)冗余分析表明,土壤pH、MAGT、ALT、SD、FVC是影响江河源区SOC、TN、C/N空间分布的关键因素。研究结果可为厘清气候趋暖条件下江河源区土壤碳氮空间分异规律及多年冻土热稳定性对土壤碳氮排放的影响提供科学基础,同时也有助于预测多年冻土区土壤碳氮空间变化。

关键词：江河源区冻土区土壤有机碳全氮碳氮比活动层

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Emotion Recognition Using Cloud Model

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Chinese Journal of Electronics 2019年第3期28卷 470-474页

作者： WANG Shuliang CHI Hehua yuan ziqiang GENG Jing School of Computer Science Wuhan University School of software Beijing Institute of Technology Goergen Institute for Data Science University of Rochester

Emotions often facilitate interactions among human beings, but the big variation of human emotional states make a negative effect on the reliable emotion recognition. We propose a novel algorithm to extract common features for each type of emotional states which can reliably present human emotions. To uncover the common features from uncertain emotional states,the backward cloud generator is used to discover {Ex,En, He} by integrating randomness and fuzziness. Finally,the proposed method for emotion recognition is verified on the common facial expression datasets, the Extended Cohn-Kanade(CK+) dataset and the Japanese female facial expression(JAFFE). The results are satisfactory,which shows cloud model is potentially useful in pattern recognition and machines learning.

关键词： Cloud model Feature extraction Human-machine interaction Emotion recognition

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Isolation and cloning of a new gene encoding maize initiation factor

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Chinese Science Bulletin 1998年第4期43卷 282-286页

作者： Hu Jianguang Zhao Xiangshan yuan ziqiang Qian Xiaoying Yang Jinshui Fudan Univ Inst Genet Shanghai 200433 Peoples R China

It was demonstrated that parental gene expression of maize in hybrid genetic background was different from that in their inbred lines. RTPCR revealed a cDNA overexpressed in hybrid maize. The cDNA was reamplified and used to screen a corresponding cDNA library. A full length of a cDNA insert ZH01 was isolated and shown to have an open reading frame encoding 414a.a. Sequence comparison shows that ZH01 has extremely high similarity with the previously reported plant initiator factor elF4A and distinct difference from another maize elF4A gene MIF4A. Overexpression of ZH01 in hybrid may involve vigorous growth of hybrid maize seedlings.

关键词： mRNA differential display initiation factor gene heterosis maize.

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Warming Changed Soil Respiration Dynamics of Alpine Meadow Ecosystem on the Tibetan Plateau

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Journal of Environmental & Earth Sciences 2019年第2期1卷 7-17页

作者： Junfeng Wang ziqiang yuan Qingbai Wu Rashad Rafique School of Environmental Science and Technology Shanxi University of Science&TechnologyXi’anShanxi710021China State Key Laboratory of Frozen Soil Engineering Cold and Arid Regions Environmental and Engineering Research InstituteChinese Academy of SciencesLanzhouGansu730000China Joint Global Change Research Institute Pacific Northwest National LabCollege ParkMD 20740USA Department of Microbiology and Plant Biology University of OklahomaNormanOK 73019USA Beiluhe Observation Station of Frozen Soil Environment and Engineering Cold and Arid Regions Environmental and Engineering Research InstituteChinese Academy of SciencesLanzhouGansu730000China

Alpine meadow system underlain by permafrost on the Tibetan Plateau contains vast soil organic carbon and is sensitive to global ***,the dynamics of annual soil respiration(Rs)under long-term warming and the determined factors are still not very *** opentop chambers(OTC),we assessed the effects of two-year experimental warming on the soil CO2 emission and the Q10 value(temperature sensitivity coefficient)under different warming *** study showed that the soil CO2 efflux rate in the warmed plots were 1.22 and 2.32 times higher compared to that of controlled ***,the Q10 value decreased by 45.06%and 50.34%respectively as the warming magnitude *** results suggested that soil moisture decreasing under global warming would enhance soil CO2 emission and lower the temperature sensitivity of soil respiration rate of the alpine meadow ecosystem in the permafrost region on the Tibetan ***,it is necessary to take into account the combined effect of ground surface warming and soil moisture decrease on the Rs in order to comprehensively evaluate the carbon emissions of the alpine meadow ecosystem,especially in short and medium terms.

关键词： Soil respiration Alpine meadow Experimental warming Open-top chamber

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Isolation and identification of genes expressed differentially in rice inflorescence meristem with suppression subtractive hybridization

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Chinese Science Bulletin 2001年第2期46卷 98-101页

作者： Jun Liu Jiandong Liu ziqiang yuan Xiaoyin Qian Min Qian Jinshui Yang Fudan Univ Sch Life Sci Genet Inst Shanghai 200433 Peoples R China

A subtracted cDNA library of rice (Oryza sativa L.) inflorescence meristem (IM) was constructed using the suppression subtractive hybridization (SSH) method. The cDNAs of the rice shoot apical meristem (SAM) were used as 'driver' and inflorescence meristem (IM) as 'tester' in the experiment, respectively. Forty of 250 randomly chosen cDNA clones were identified by differential screening, which were IM-specific or IM-highly expressed. Most of the rice IM cDNAs cloned by SSH appear to represent rare transcripts, 40% of which were derived from truly differentially expressed genes. Of all the forty sequenced cDNA inserts, eleven contain the regions with 60%-90% identity to their homolog in GenBank, eighteen are expected to be new genes, only two correspond to published rice genes.

关键词： rice (Oryza saliva L.) cDNA suppression subtractive hybridization shoot apical meristem inflorescence meristem.

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Association of TRMT2B gene variants with juvenile amyotrophic lateral sclerosis

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Frontiers of Medicine 2024年第1期18卷 68-80页

作者： Yanling Liu Xi He Yanchun yuan Bin Li Zhen Liu Wanzhen Li Kaixuan Li Shuo Tan Quan Zhu Zhengyan Tang Feng Han ziqiang Wu Lu Shen Hong Jiang Beisha Tang Jian Qiu Zhengmao Hu Junling Wang Department of Neurology Xiangya HospitalCentral South UniversityJiangxiNational Regional Center for Neurological DiseasesNanchang330038China Provincial Laboratory for Diagnosis and Treatment of Genitourinary System Disease Department of UrologyXiangya HospitalCentral South UniversityChangsha410078China Department of Orthopedics The First Affiliated HospitalZhejiang University School of MedicineHangzhou310002China Department of Neurology Xiangya HospitalCentral South UniversityChangsha410078China National Clinical Research Center for Geriatric Diseases Xiangya HospitalCentral South UniversityChangsha410008China Key Laboratory of Hunan Province in Neurodegenerative Disorders Central South UniversityChangsha410008China Center for Medical Genetics School of Life SciencesCentral South UniversityChangsha410008China Engineering Research Center of Hunan Province in Cognitive Impairment Disorders Central South UniversityChangsha410078China Hunan International Scientific and Technological Cooperation Base of Neurodegenerative and Neurogenetic Diseases Changsha410078China Hunan Key Laboratory of Molecular Precision Medicine Xiangya HospitalCentral South UniversityChangsha410078China

Amyotrophic lateral sclerosis(ALS)is a fatal neurodegenerative disease characterized by progressive degeneration of motor neurons,and it demonstrates high clinical heterogeneity and complex genetic architecture.A variation within TRMT2B(c.1356G>T;p.K452N)was identified to be associated with ALS in a family comprising two patients with juvenile ALS(JALS).Two missense variations and one splicing variation were identified in 10 patients with ALS in a cohort with 910 patients with ALS,and three more variants were identified in a public ALS database including 3317 patients with ALS.A decreased number of mitochondria,swollen mitochondria,lower expression of ND1,decreased mitochondrial complex I activities,lower mitochondrial aerobic respiration,and a high level of ROS were observed functionally in patient-originated lymphoblastoid cell lines and TRMT2B interfering HEK293 ***,TRMT2B variations overexpression cells also displayed decreased *** conclusion,a novel JALS-associated gene called TRMT2B was identified,thus broadening the clinical and genetic spectrum of ALS.

关键词： TRMT2B amyotrophic lateral sclerosis mitochondrial complex I tRNA methylation reactive oxygen species

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Comparisons of transcranial alternating current stimulation and repetitive transcranial magnetic stimulation treatment therapy for insomnia:a pilot study

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General Psychiatry 2024年第1期37卷 163-167页

作者： ziqiang Shao Yongjian Guo Lirong Yue Xiaoyang Liu Jiayi Liu Xumeng Zhao Xiaona Sheng Dahua Yu Yifei Zhu Kai yuan School of Life Science and Technology Xidian UniversityXi'anShaanxiChina Department of Psychosomatic Medicine The Second Hospital of Hebei Medical UniversityShijiazhuangHebeiChina Information Processing Laboratory School of Information EngineeringInner Mongolia University of Science and TechnologyBaotouInner MongoliaChina

To the editor:Insomnia disorder has a serious and widespread detrimental effect on humans with comorbidity with other mental or physical health *** recent years,noninvasive brain stimulation(NIBS)techniques,especially transcranial magnetic stimulation(TMS)and transcranial electrical stimulation,have been increasingly used for the treatment of brain diseases,including insomnia disorder.

关键词： stimulation transcranial ins

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Dual roles of the amygdala-hippocampus circuit in the regulation of rapid eye movement sleep and depression symptoms by repetitive transcranial magnetic stimulation in patients with insomnia

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General Psychiatry 2024年第2期37卷 297-300页

作者： Xiaoyang Liu Xumeng Zhao ziqiang Shao Yongjian Guo Lirong Yue Jiayi Liu Dahua Yu Xiaona Sheng Yifei Zhu Kai yuan School of Life Science and Technology Xidian UniversityXi'anShaanxiChina Department of Psychosomatic Medicine The Second Hospital of Hebei Medical UniversityShijiazhuangHebeiChina Inner Mongolia University of Science and Technology BaotouInner MongoliaChina

To the editor:It is commonly reported that people with insomnia often experience comorbid emotional disorders,such as mood and anxiety disorders.12 A study found that fragmented rapid eye movement(REM)sleep in individuals with insomnia is associated with higher Beck Depression Inventory(BDI)scores.3 REM sleep architecture disruption is a typical symptom of insomnia.

关键词： sleep stimulation movement

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光伏出力序列场景生成新方法

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电力系统及其自动化学报 2024年第8期36卷 60-69页

作者：马骞辛阔王子强袁泉刘春晓中国南方电网有限责任公司广州510663

面向更精准的中长期电力电量平衡校验,提出横纵向融合及人为指定持续极端日的光伏出力场景生成新方法。首先,依据日辐照度特征指标及聚类把历史数据划分为多个极端日和多个典型日;然后,利用马氏链生成下一个月横向辐照度日类型序列及特... 详细信息

面向更精准的中长期电力电量平衡校验,提出横纵向融合及人为指定持续极端日的光伏出力场景生成新方法。首先,依据日辐照度特征指标及聚类把历史数据划分为多个极端日和多个典型日;然后,利用马氏链生成下一个月横向辐照度日类型序列及特征指标序列的基础上,提出基于日类型出现概率及日类型允许转换矩阵的辐照度日类型序列生成方法,生成下一个月纵向日类型序列及特征指标序列,并将横纵向数据进行融合;最后,基于优化方法及光电转化模型生成月度光伏出力场景,并在此基础上提出人为指定持续极端日光伏出力序列场景生成方法。算例表明所提算法能更好地为运行调度提供参考。

关键词：光伏日出力序列场景横纵向融合日类型允许的日类型转换矩阵人为指定持续极端日

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