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Ultrahigh pressure (>7 GPa) gneissic K-feldspar (-bearing) garnet clinopyroxenite in the Altyn Tagh, NW china: Evi- dence from clinopyroxene exsolution in garnet

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science china Earth sciences 2005年第7期48卷 1000-1010页

作者： liu Liang1,3, CheN Danling1, zhang Anda1, SUN Yong1, {2. Yan1, YANG Jiaxi1,2.& LUO Jinhai1 1. Key Laboratory of Continental Dynamics of the Ministry of Education of china, Northwest university, Xi’an 710069, china 2. college of Earth science and Land resources, chang’an university, Xi’an 710054, china 3. The Laboratory of Orogen and Basin of the Ministry of Education, Peking university, beijing 100871, china Key Laboratory of Continental Dynamics Ministry of Education of China Northwest University Xi'an 710069 China Laboratory of Orogen and Basin Ministry of Education Peking University Beijing 100871 China college of Earth science and Land {2. Chang'an University Xi'an 710054 China

The exsolution of clinopyroxene and rutile in coarse-grain garnet is found in the gneissic K-feldspar(-bearing) garnet clinopyroxenite from Yinggelisayi in the Altyn Tagh, NW china. The maximum content of the exsolved clinopyroxene in the garnet is up to >5% by volume. The reconstructed precursor garnet (Grt1) before exsolution has a maximum Si content of 3.061 per formula uint, being of supersilicic or majoritic garnet. The peak-stage metamorphic pressure of >7 GPa is estimated using the geobarometer for volume percentage of exsolved pyroxene in garnet and the Si-(Al+Cr) geobarometer for majoritic garnet, and the temperature of about 1000℃ using the ternary alkali-feldspar geothermometer and the experimental data of ilmen- ite-magnetite solid solution. The protoliths of the rocks are intra-plate basic and intermediate ig- neous rocks, of which the geochemical features indicate that they are probably the products of the evolution of basic magma deriving from the continental lithosphere mantle. The rocks are in outcrops associated with ultrahigh pressure garnet-bearing lherzolite and ultrahigh pressure garnet granitoid gneiss. All of these data suggest that the ultrahigh pressure metamorphic rocks in the Altyn Tagh are the products of deep-subduction of the continental crust, and such deep- subduction probably reaches to >2.0 km in depth. This may provide new evidence for further discussion of the dynamic mechanism of the formation and evolvement of the Altyn Tagh and the other collision orogenic belts in western china.

关键词： Altyn Tagh gneissic K-feldspar (-bearing) garnet clinopyroxenite clinopyroxene exsolution in garnet ultra-high pressure metamorphism.

Compound extreme inundation risk of coastal wetlands caused by climate change and anthropogenic activities in the Yellow River Delta,china

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Advances in Climate change Research 2024年第1期15卷 134-147页

作者： Xiao-Li wang Ai-Qing FENG Xi-Yong HOU Qing-Chen CHAO Bai-Yuan SONG Yu-Bin liu Qi-Guang wang he XU Yu-Xin zhang dong Li Li-Jie dong Yu GUO CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation Yantai Institute of Coastal Zone ResearchChinese Academy of SciencesYantai 264003China Shandong Key Laboratory of Coastal Environmental Processes Yantai 264003China china Meteorological Administration Key Laboratory for Climate Prediction Studies National Climate CentreBeijing 100081China Tongji Urban Planning Design Research Institute Shanghai 200092China School of Geography and Tourism Qilu Normal UniversityJinan 250200China china Meteorological Administration Training Centre China Meteorological AdministrationBeijing 10008China university of Chinese Academy of sciences Beijing 100049China Marine science and Technology college Zhejiang Ocean UniversityZhoushan 316022China

The coastal wetlands of the Yellow River Delta(YRD)in china are crucial for their valuable resources,environmental significance,and economic ***,these wetlands are also vulnerable to the dual threats of climate {2.e and human *** substantial attention to the historical shifts in YRD's coastal wetlands,uncertainties remain regarding their future trajectory in the face of compound risks from climate {2.e and anthropogenic *** on a range of remote sensing data sources,this study undertakes a comprehensive investigation into the evolution of YRD's coastal wetlands between 2.00 and ***,the potential fate of coastal wetlands is thoroughly analyzed through the Land Use/Cover {2.e(LUCC)simulation using System Dynamic-Future Land Use Simulation(SD-FLUS)model and the extreme water levels projection integrated future sea-level rise,storm surge,and astronomical high tide in 2.30,2.50,and 2.00 under scenarios of SSP1-2.6,SSP2.4.5,and *** revealed that YRD's coastal wetlands underwent a marked reduction,shrinking by 1688.72.km²from 2.00 to *** decline was mostly attributed to the substantial expansion in the areas of artificial wetlands(increasing by 82..78 km2.,construction land(increasing by 767.71 km²),and shallow water(increasing by 2.4.58 km²).Looking ahead to 2.30-2.00,the fate of coastal wetlands appears to diverge based on different *** the SSP1-2.6 scenario,the area of coastal wetland is projected to experience considerable *** contrast,the SSP5-8.5 scenario anticipates a notable decrease in coastal *** to the inundated area suffered from the current extreme water levels,the study projects a decrease of 6.8%-10.6%in submerged coastal wetlands by 2.30 and 9.4%-18.2.by 2.50 across all *** 2.00,these percentages are projected to decrease by 0.4%(SSP2.4.5)and 2..1%(SSP5-8.5),but increase by 35.7%(SSP1-2.6).Results suggest that coastal wetlands in th

关键词： Climate change Anthropogenic activities Compound extreme risk Coastal wetlands Yellow River Delta

Geophysical prediction of organic matter abundance in source rocks based on geochemical analysis:A case study of southwestern Bozhong Sag,Bohai Sea,china

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Petroleum science 2024年第1期21卷 31-53页

作者： Xiang wang Guang-Di liu Xiao-Lin wang Jin-Feng Ma Zhen-Liang wang Fei-Long wang Ze-zhang Song chang-Yu Fan State Key Laboratory of Petroleum resources and Prospecting China University of Petroleum(Beijing)Beijing102249China college of Geosciences China University of Petroleum(Beijing)Beijing102249China State Key Laboratory of Continental Dynamics Northwest UniversityXi'an710069ShaanxiChina Department of Geology Northwest UniversityXi'an710069ShaanxiChina CNOOC Tianjin Branch Company Tianjin300459China

The Bozhong Sag is the largest petroliferous sag in the Bohai Bay Basin,and the source rocks of Paleogene dongying and Shahejie Formations were buried *** of the drillings were located at the structural high,and there were few wells that met good quality source rocks,so it is difficult to evaluate the source rocks in the study area precisely by geochemical analysis *** on the Rock-Eval pyrolysis,total organic carbon(TOC)testing,the organic matter(OM)abundance of Paleogene source rocks in the southwestern Bozhong Sag were evaluated,including the lower of second member of dongying Formation(E_(3)d2.),the third member of dongying Formation(E_(3)d_(3)),the first and second members of Shahejie Formation(E_(2.s_(1+2.),the third member of Shahejie Formation(E_(2.s_(3)).The results indicate that the E_(2.s_(1+2.and E_(2.s_(3)have better hydrocarbon generative potentials with the highest OM abundance,the E_(3)d_(3)are of the second good quality,and the E_(3)d2. have poor to fair hydrocarbon generative ***,the well logs were applied to predict TOC and residual hydrocarbon generation potential(S_(2.)based on the sedimentary facies classification,usingΔlogR,generalizedΔlogR,logging multiple linear regression and BP neural network *** various methods were compared,and the BP neural network method have relatively better prediction *** on the pre-stack simultaneous inversion(P-wave impedance,P-wave velocity and density inversion results)and the post-stack seismic attributes,the three-dimensional(3D)seismic prediction of TOC and S_(2.was carried *** results show that the seismic near well prediction results of TOC and S_(2.based on seismic multi-attributes analysis correspond well with the results of well logging methods,and the plane prediction results are identical with the sedimentary facies map in the study *** TOC and S_(2.values of E_(2.s_(1+2.and E_(2.s_(3)are higher than those in E_(3)d_(3)and E_(3)d_(2.L,basicall

关键词： Total organic carbon(TOC) Residual hydrocarbon generation potential(S_(2.) Geophysical prediction Seismic attribute Bozhong Sag Bohai Bay Basin

Memristive feature and mechanism induced by laser-doping in defect-free 2. semiconductor materials

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Journal of Semiconductors 2024年第7期45卷 85-91页

作者： Xiaoshan Du Shu wang Qiaoxuan zhang Shengyao Chen Fengyou Yang Zhenzhou {2. Zhengwei Fan Lijun Ma Lei wang Lena Du Zhongchang wang Cong wang bing Chen Qian {2. college of Electronic and Information Engineering Shandong University of Science and TechnologyQingdao 266590China National Center for Nanoscience and Technology&university of Chinese Academy of sciences Beijing 100190China hebei university of Water resources and Electric Engineering Electrical Automation Department Cangzhou 061001China The MOE Key Laboratory of Weak-Light Nonlinear Photonics and International Sino-Slovenian Join Re-search Center on Liquid Crystal Pho-tonics TEDA Institute of Applied Physics and School of PhysicsNankai UniversityTianjin 300457China college of Mathematics and Physics Shandong Advanced Optoelectronic Materials and Technologies Engineering LaboratoryQingdao Uni-versity of Science and TechnologyQingdao 266061China Department of Physics Capital Normal UniversityBeijing 100048China Department of Advanced Materials and Computing International Iberian Nanotechnology Laboratory(INL)4715-330 BragaPortugal college of Mathematics and Physics Beijing University of Chemical TechnologyBeijing 100029China

Memristors as non-volatile memory devices have gained numerous attentions owing to their advantages in storage,in-memory computing, synaptic applications, etc. In recent years, two-dimensional(2.) materials with moderate defects have been discovered to exist memristive feature. However, it is very difficult to obtain moderate defect degree in 2. materials, and studied on modulation means and mechanism becomes urgent and essential. In this work, we realized memristive feature with a bipolar switching and a configurable on/off ratio in a two-terminal MoS_(2. device(on/off ratio ~100), for the first time, from absent to present using laser-modulation to few-layer defect-free MoS_(2.(about 10 layers), and its retention time in both high resistance state and low resistance state can reach 2.10^(4) s. The mechanism of the laser-induced memristive feature has been cleared by dynamic Monte Carlo simulations and first-principles calculations. Furthermore, we verified the universality of the laser-modulation by investigating other 2. materials of TMDs. Our work will open a route to modulate and optimize the performance of 2. semiconductor memristive devices.

关键词： 2.-material memristor laser doping laser direct writing memristive mechanism

Amplification effect of intra-seasonal variability of soil moisture on heat extremes over Eurasia

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Advances in Climate change Research 2024年第1期15卷 1-8页

作者： Yi-Nuo wang Zhi-Yan ZUO Liang QIAO Kai-Wen zhang Mei-Yu {2. dong XIAO Zou-Xing LIN huan wang Department of Atmospheric and Oceanic sciences Institute of Atmospheric SciencesFudan UniversityShanghai 200438China CMA-FDU Joint Laboratory of Marine Meteorology Shanghai 200438China Key Laboratory of Cites Mitigation and Adaptation to Climate change in Shanghai China Meteorological AdministrationShanghai 200030China Collaborative Innovation Centeron Forecast and Evaluation of Meteorological Disasters Nanjing University of Information Science and TechnologyNanjing 211800China Shanghai Frontiers science Center of Atmosphere-Ocean Interaction Shanghai 200123China college of Geography and resources {2. Sichuan Normal UniversityChengdu 610101China National Observations and Research Station for Wetland Ecosystems of the Yangtze Estuary Shanghai 202183China Chinese Academy of Meteorological sciences China Meteorological AdministrationBeijing 100081China

Drying soil has been conducive to a high frequency of extreme high-temperature events over many regions worldwide in recent ***,changes in the intraseasonal variability of soil moisture can also influence the likelihood of extremely high *** previous investigators have examined the association between extremely high temperatures and large-scale atmospheric circulation variability,the role of land-atmosphere coupling dominated by soil moisture variability in extremely high temperatures,particularly over the Eurasian continent,is not well *** this study,on the basis of the Land Surface,Snow,and Soil Moisture Model Intercomparison Project,we found that land-atmosphere feedback amplified the variability of soil moisture in most regions of Eurasia during summer from 1980 to *** amplification of soil moisture variability is closely correlated with more intensive intraseasonal variability of surface air temperature and more frequent occurrences of extreme high-temperature events,particularly in Europe,Siberia,Northeast Asia,and the Indochina *** correlation implies that increasing the intraseasonal variability of soil moisture results in a high likelihood of heat extremes during summer in most parts of Eurasia except Asian desert *** the intraseasonal timescale,the land-atmosphere coupling increases the variability of surface sensible heat flux and net long-wave radiation heating the atmosphere by intensifying the soil moisture variability,thus amplifying the variability of surface air temperature and enhancing the extreme high-temperature *** finding demonstrates the importance of changes in intraseasonal soil moisture variability for the increasing likelihood of heat extremes in summer.

关键词： Soil moisture Intraseasonal variability Land-atmosphere coupling heat extremes

Establishment of a transformation system in close relatives of wheat under the assistance of TaWOX5

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Journal of Integrative Agriculture 2024年第6期23卷 1839-1849页

作者： Yanan chang Junxian liu chang liu Huiyun liu huali Tang Yuliang Qiu Zhishan Lin Ke wang Yueming Yan Xingguo Ye Institute of Crop sciences Chinese Academy of Agricultural SciencesBeijing 100081China beijing Key Laboratory of Plant Gene resources and Biotechnology for Carbon Reduction and Environment Improvement/{2. of Life science Capital Normal UniversityBeijing 100048China college of Agronomy and Biotechnology China Agricultural UniversityBeijing 100193China State Key Laboratory of Plant Cell and Chromosome Engineering/Institute of Genetics and Developmental Biology Chinese Academy of SciencesBeijing 100101China

Species closely related to wheat are important genetic resources for agricultural production,functional genomics studies and wheat *** this study,a wheat gene related to regeneration,TaWOX5,was applied to establish the Agrobacterium-mediated transformation systems of Triticum monococcum,hexaploid triticale,and rye(Secale cereale L.)using their immature *** plants were efficiently *** the transformation process,the Agrobacterium infection efficiency was assessed by histochemical staining forβ-glucuronidase(GUS).Finally,the transgenic nature of regenerated plants was verified by polymerase chain reaction(PCR)-based genotyping for the presence of the GUS and bialaphos resistance(bar)genes,histochemical staining for GUS protein,and the QuickStix strip assay for bar *** transformation efficiency of *** genotype PI42.182.was 94.4%;the efficiencies of four hexaploid triticale genotypes Lin456,ZS32.7,ZS12.7,and ZS32.4 were 52.1,41.2.19.4,and 16.0%,respectively;and the transformation efficiency of rye cultivar Lanzhou heimai was 7.8%.Fluorescence in situ hybridization(FISH)and genomic in situ hybridization(GISH)analyses indicated that the GUS transgenes were integrated into the distal or near centromere(proximal)regions of the chromosomes in transgenic *** and hexaploid triticale *** the transgenic hexaploid triticale plants,the foreign DNA fragment was randomly integrated into the AABB and RR ***,the transgene was almost stably inherited in the next generation by Mendel’s *** findings in this study will promote the genetic improvement of the three plant species for grain or forage production and the improvement of cereal species including wheat for functional genomics studies.

关键词： Triticum monococcum hexaploid triticale rye TaWOX5 Agrobacterium transformation efficiency

The In-Flight Realtime Trigger and Localization Software of GECAM

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Research in Astronomy and Astrophysics 2024年第10期24卷 11-24页

作者： Xiao-Yun Zhao Shao-Lin Xiong Xiang-Yang Wen Xin-Qiao Li Ce Cai Shuo Xiao Qi Luo Wen-Xi Peng dong-Ya Guo Zheng-hua An Ke Gong Jin-Yuan Liao Yan-Qiu {2. Yue huang Lu Li Xing Wen Fei {2. Jing Duan Chen-Wei wang dong-Li shi Peng {2. Qi-Bin Yi Chao-Yang Li Yan-bing Xu Xiao-hua Liang Ya-Qing liu Da-Li {2. Xi-Lei Sun Fan {2. Gang Chen huan-Yu wang Sheng Yang Xiao-Jing liu Min Gao Mao-Shun Li Jin-Zhou wang Xing Zhou Yi Zhao wang-Chen Xue Chao Zheng Jia-Cong liu Xing-Bo Han Jin-Ling Qi Jia huang Ke-Ke {2. Can Chen Xiong-Tao Yang dong-Jie Hou Yu-Sa wang Rui Qiao Xiang Ma Xiao-Bo Li Ping wang Xin-Ying Song Li-Ming Song shi-Jie Zheng bing Li Hong-Mei {2. Yue Zhu Wei Chen Jian-Jian he Zhen {2. Jin Hou Hong-Jun wang Yan-Chao Hao Xiang-Yu wang Zong-Yuan Yang Zhi-Long Wen Zhi chang Yuan-Yuan Du Rui Gao Xiao-Fei Lan Yan-Guo Li Gang Li Xu-Fang Li Fang-Jun Lu Hong Lu Bin Meng Feng shi Hui wang Hui-Zhen wang Yu-Peng Xu Jia-Wei Yang Xue-Juan Yang Shuang-Nan {2. Chao-Yue {2. Cheng-Mo {2. Zhi-Cheng Tang Cheng Cheng Key Laboratory of Particle Astrophysics Institute of High Energy PhysicsChinese Academy of SciencesBeijing 100049China university of Chinese Academy of sciences Chinese Academy of SciencesBeijing 100049China School of Information science and Technology Southwest Jiaotong UniversityChengdu 611756China Key Laboratory of Stellar and Interstellar Physics and Department of Physics Xiangtan UniversityXiangtan 411105China Physics and Space science college China West Normal UniversityNanchong 637002China Department of Astronomy Beijing Normal UniversityBeijing 100875China Innovation Academy for Microsatellites of CAS Shanghai 201203China changchun university of {2. and Technology Changchun 130022China Chinese Academy of sciences South America Center for Astronomy National Astronomical ObservatoriesCASBeijing 100101China

Realtime trigger and localization of bursts are the key functions of GECAM,an all-sky gamma-ray monitor launched on 2.2. December *** developed a multifunctional trigger and localization software operating in the CPU of the GECAM Electronic *** onboard software has the following features:high trigger efficiency for real celestial bursts with a suppression of false triggers caused by charged particle bursts and background fluctuation,dedicated localization algorithm optimized for both short and long bursts,and low time latency of the trigger information which is downlinked through the Global Short Message Communication service of the global BeiDou navigation *** paper provides a detailed description of the design and development of the trigger and localization software system for *** covers the general design,workflow,the main functions,and the algorithms used in the *** paper also includes on-ground trigger tests using simulated gamma-ray bursts generated by a dedicated X-ray tube,as well as an overview of the performance for real celestial bursts during its in-orbit operation.

关键词： telescopes instrumentation:detectors methods:observational

Genome assembly of autotetraploid Actinidia arguta highlights adaptive evolution and enables dissection of important economic traits

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Plant Communications 2024年第6期5卷 173-192页

作者： Xue-Mei Lu Xiao-Fen Yu Guo-Qiang Li Ming-Hao Qu huan wang Chuang liu Yu-Ping Man Xiao-Han Jiang Mu-Zi Li Jian wang Qi-Qi Chen Rui Lei Cheng-Cheng Zhao Yun-Qiu Zhou Zheng-wang Jiang Zuo-Zhou Li Shang Zheng chang dong Bai-Lin wang Yan-Xiang Sun Hui-Qin zhang Jie-Wei Li Quan-Hui Mo Ying zhang Xin Lou Hai-Xu Peng Ya-Ting Yi he-Xin wang Xiu-Jun zhang Yi-Bo wang Dan wang Li Li Qiong zhang Wen-Xia wang Yongbo liu Lei Gao Jin-Hu Wu Yan-chang wang CAS Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture Wuhan Botanical GardenChinese Academy of SciencesWuhanHubeiChina Key Laboratory of Western china’s Environmental Systems(Ministry of Education) College of Earth and Environmental SciencesLanzhou UniversityLanzhouGansuChina college of Life sciences University of Chinese Academy of SciencesBeijingChina Wuhan Frasergen Bioinformatics Co. LtdWuhanHubeiChina Institute of Soil and Fertilizer Anhui Academy of Agricultural SciencesHefeiChina college of Agricultural sciences Xichang UniversityXichangSichuanChina Department of Horticulture Heilongjiang Academy of Agricultural SciencesHarbinHeilongjiangChina college of Life sciences Langfang Normal UniversityLangfangHebeiChina Institute of Horticulture Zhejiang Academy of Agricultural SciencesHangzhouZhejiangChina Guangxi Institute of Botany Chinese Academy of SciencesGuilinGuangxiChina Xi’an Botanical Garden of Shaanxi Province Institute of Botany of Shaanxi ProvinceXi’anShaanxiChina Institute of Modern Agricultural Research Dalian UniversityDalianLiaoningChina Bioinformatics Center College of Plant Science and TechnologyBeijing University of AgricultureBeijingChina college of Agriculture Eastern Liaoning UniversityDandongLiaoningChina Dalian Institute of Chemical Physics Chinese Academy of SciencesDalianLiaoningChina State Environmental Protection Key Laboratory of Regional Eco-process and Function Assessment Chinese Research Academy of Environmental SciencesBeijingChina Hubei Hongshan Laboratory WuhanHubeiChina The New Zealand Institute for Plant and Food Research Limited AucklandNew Zealand

Actinidia arguta,the most widely distributed Actinidia species and the second cultivated species in the genus,can be distinguished from the currently cultivated Actinidia chinensis on the basis of its small and smooth fruit,rapid softening,and excellent cold *** evolution of tetraploid Actinidia species and the genetic basis of their important agronomic traits are still ***,we generated a chromosome-scale genome assembly of an autotetraploid male *** *** genome assembly was 2.77 Gb in length with a contig N50 of 9.97 Mb and was anchored onto 116 *** and clustering of 101 geographically representative accessions showed that they could be divided into two geographic groups,Southern and Northern,which first diverged 12.9 million years *** underwent two prominent expansions and one demographic bottleneck from the midPleistocene climate transition to the late *** genomics studies using paleoclimate data enabled us to discern the evolution of the species’adaptation to different historical *** genes(AaCEL1,AaPME1,and AaDOF1)related to flesh softening were identified by multi-omics analysis,and their ability to accelerate flesh softening was verified through transient expression assays.A set of genes that characteristically regulate sexual dimorphism located on the sex chromosome(Chr3)or autosomal chromosomes showed biased expression during stamen or carpel *** chromosome-level assembly of the autotetraploid *** genome and the genes related to important agronomic traits will facilitate future functional genomics research and improvement of ***.

关键词： kiwiberry dioecism adaptive evolution paleoclimate GEA rapid softening

Study on the spatial and temporal evolutionary characteristics of ozone concentration and the impact of human activities in china in 2.19

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Acta Geochimica 2024年第5期43卷 985-995页

作者： Yongchun wang wang {2. Yu’an liu Yazhu wang Yuting Fu Zhaohui Feng Lingqing wang School of Geography South China Normal UniversityGuangzhou 510631China college of Urban and Environmental sciences Hunan University of TechnologyZhuzhou 412007China Nanjing Institute of Geography and Limnology Chinese Academy of SciencesNanjing 210008China Institute of Geographical sciences and Natural resources Research Chinese Academy of SciencesBeijing 100101China

Ozone(O_(3))pollution has a profound impact on human health,vegetation development,and the ecological environment,making it a critical focus of global academic *** recent years,O_(3)pollution in china has been on a steady rise,with ozone emerging as the sole conventional pollutant to consistently increase in concentration without any *** study conducted a quantitative analysis of O_(3)concentrations across 367 Chinese cities in 2.19,examining spatial autocorrelation and local clustering of O_(3)levels,and investigated the diverse relation{2.ps between human activity factors and O_(3)*** seasonal fluctuation of O_(3)exhibited the“M-type”pattern,with peak concentrations in winter and the lowest levels in *** center of O_(3)pollution migrated southeastward,with the area of highest concentration progressively {2.fting south along the eastern ***,O_(3)concentration showed a strong positive correlation with population density,road freight volume,and industrial emissions,suggesting that human activities,vehicle emissions,and industrial operations are significant contributors to O_(3)*** results provide comprehensive information on the characteristics,causes,and occurrence mechanism of O_(3)in Chinese cities that can be utilized by global government departments to formulate strategies to prevent and control O_(3)pollution.

关键词： Ozone concentration Urban agglomerations Human activities Spatial heterogeneity