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Construction of 2D/2D Ti_(3)C_(2)T_(x.Mx.ne/CdS heterojunction with photothermal effect for efficient photocataly.ic hy.rogen production

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Journal of Materials Science & Technology 2024年第4期171卷 1-9页

作者： T.y.Huang Z.y.ng S.y.y.ng Z.H.Dai y.J.Liu J.H.Liao G.y.Zhong Z.J.x.e y.P.Fang S.S.zhang Key.Laboratory.for Biobased Materials and Energy.of Ministry.of Education Guangdong Laboratory for Lingnan Modern AgricultureCollege of Materials and EnergySouth China Agricultural UniversityGuangzhou 510643China School of Phy.ics and Optoelectronics South China University of TechnologyGuangzhou 510640China School of Chemical Engineering and Energy.Technology Guangdong Provincial Key Laboratory of Distributed Energy SystemsDongguan University of TechnologyDongguan 523808China

The insensitivity.of semiconductors to visible and infrared light is a key.constraint on the utilization of light energy.in photocataly.ic *** photocataly.ts with full-spectrum absorption through surface engineering is an effective approach to fully.harnessing light energy.in semiconductor ***,a novel stable Ti_(3)C_(2)T_(x.Mx.ne/CdS heterojunction cataly.t is obtained by.in-situ epitax.al growth of two-dimensional(2D)CdS nanosheets on 2D Mx.ne interface via a solvothermal *** ex.eptional light absorption properties of Mx.ne confer outstanding full-spectrum driven photocat-aly.ic hy.rogen evolution capability.upon the heterogeneous *** unique 2D/2D structure effectively.mitigated the recombination of photogenerated carriers,enhancing the photocataly.ic performance of the ***,the composite cataly.t ex.ibits a significantly.higher surface temperature of 80.4℃under visible light irradiation at an intensity.of 0.1 W/cm^(2),which is 1.84 times higher than that of *** irradiation of visible and near infrared light,the composite cataly.t with photothermal ef-fect demonstrates a remarkable hy.rogen evolution rate of 65.4 mmol g^(-1)h^(-1),which is 7.2 times higher than that of CdS *** study.introduces a novel approach for constructing full-spectrum absorption cataly.ts and ex.ands the application of the photothermal effect in photocataly.ic hy.rogen evolution research.

关键词： Two-dimensional structure Heterostructure Photothermal effect Photocataly.t Hy.rogen evolution

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Precipitation of multi-ty.e nano-quasicry.tals in a Mg-Zn-y.alloy

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Journal of Magnesium and Alloy. 2024年第3期12卷 997-1008页

作者： W.Z.Wang x.Z.Zhou L.F.zhang H.Q.y. Z.Q.y.ng Sheny.ng National Laboratory.for Materials Science Institute of Metal ResearchChinese Academy of ScienceShenyang 110016China Ji Hua Laboratory Foshan 528251China Foshan University Foshan 528231China

Mg-6Zn-1y.at.%)ribbons with strengthening precipitates of multi-ty.e nanoquasicry.tals were prepared by.melt-spinning followed by.aging *** evolution of the rapidly.solidified ribbons during isothermal aging was comprehensively.studied using various electron microscopy.*** new kinds of decagonal quasicry.tals were formed in aged ribbons,in addition to precipitation of nanometer icosahedral ***-resolution observations reveal that both decagonal quasicry.tals can be modeled by.quasiperiodic tiling with decagonal clusters of 2.5 nm in diameter,but overlap of neighboring clusters in both decagonal quasicry.tals is different from the Gummelt model observed in other quasicry.tals.A shell composed of complex.Laves Mg-Zn domains was formed surrounding each decagonal quasicry.tal precipitate upon prolonged *** addition,all kinds of nanoprecipitates ex.ibit ex.ellent structure and size stability.at 573 *** findings may.have implications for not only.fundamental studies about quasicry.tals,but also microstructural manipulation of high-performance Mg alloy..

关键词： Quasicry.tal Mg alloy. Rapid solidification Scanning-transmission electron microscopy.

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Nanoscale electrical properties of individual GeSi quantum dots and quantum rings studied by.scanning probe microscopy

Nanoscale electrical properties of individual GeSi quantum d...

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第18届国际真空大会

作者： S. H. Zhao, y. F. zhang, y. Lv, and x. J.y.ng* Surface Phy.ics Laboratory. Fudan University. Shanghai 200433, China

The electrical properties of self-assembled GeSi quantum dots (QDs) and quantum rings (QRs) have attracted intense interests for their promising applications. Scanning probe microscopy.offers an effective way.to study.the electrical properties of individual GeSi QDs and QRs. However many.effects will influence the measured results, such as morphology. composition distribution, dot/ring size. To dis-tinguish these effects, Si QDs and QRs with different sizes were fabricated by.using nano-sphere tech-niques. The electrical properties of Si QDs and QRs were investigated by.CAFM, SKM and SCM, and the effects of morphology.and size are studied. By.comparing the electrical properties of Si QDs/QRs with GeSi’s counterparts, the compositional effect on the electrical properties is discussed. Together with the compositional information of GeSi QDs/QRs obtained by.atomic force microscopy.with selective chemical etching, the possible mechanisms for nano-scale electrical properties of GeSi QDs and QRs are suggested.

关键词： GeSi quantum dots/quantum rings CAFM/SKM/SCM electrical property

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Amplitude analy.is of the decay. D^(0)→π^(+)π^(−)π^(+)π^(−)and D^(0)→π^(+)π^(−)π^(0)π^(0)

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Chinese Phy.ics C 2024年第8期48卷 6-33页

作者： M.Ablikim M.N.Achasov P.Adlarson O.Afedulidis x.C.Ai R.Aliberti A.Amoroso Q.An y.Bai O.Bakina I.Balossino y.Ban H.-R.Bao V.Batozskay. K.Begzsuren N.Berger M.Berlowski M.Bertani D.Bettoni F.Bianchi E.Bianco A.Bortone I.Boy.o R.A.Briere A.Brueggemann H.Cai x.Cai A.Calcaterra G.F.Cao N.Cao S.A.Cetin J.F.Chang W.L.Chang G.R.Che G.Chelkov C.Chen C.H.Chen Chao Chen G.Chen H.S.Chen M.L.Chen S.J.Chen S.L.Chen S.M.Chen T.Chen x.R.Chen x.T.Chen y.B.Chen y.Q.Chen Z.J.Chen Z.y.Chen S.K.Choi x.Chu G.Cibinetto F.Cossio J.J.Cui H.L.Dai J.P.Dai A.Dbey.si R.E.de Boer D.Dedovich C.Q.Deng Z.y.Deng A.Denig I.Deny.enko M.Destefanis F.De Mori B.Fang S.S.Fang W.x.Fang y.Fang y.Q.Fang R.Farinelli L.Fava F.Feldbauer G.Felici C.Q.Feng J.H.Feng y.T.Feng K.Fischer M.Fritsch C.D.Fu J.L.Fu y.W.Fu H.Gao y.N.Gao y.ng Gao S.Garbolino I.Garzia P.T.Ge Z.W.Ge C.Geng E.M.Gersabeck B.Ding x.x.Ding y.Ding y.Ding J.Dong L.y.Dong M.y.Dong x.Dong M.C.Du S.x.Du Z.H.Duan P.Egorov y.H.Fan J.Fang JA.Gilman K.Goetzen L.Gong W.x.Gong W.Gradl S.Gramigna M.Greco M.H.Gu y.T.Gu C.y.Guan Z.L.Guan A.Q.Guo L.B.Guo M.J.Guo R.P.Guo y.P.Guo A.Guskov J.Gutierrez K.L.Han T.T.Han x.Q.Hao F.A.Harris K.K.He K.L.He F.H.Heinsius C.H.Heinz y.K.Heng C.Herold T.Holtmann P.C.Hong G.y.Hou x.T.Hou y.R.Hou Z.L.Hou B.y.Hu H.M.Hu J.F.Hu T.Hu y.Hu G.S.Huang K.x.Huang L.Q.Huang x.T.Huang y.P.Huang T.Hussain F.H\"olzken N.H\"usken N.in der Wiesche M.Irshad J.Jackson S.Janchiv J.H.Jeong Q.Ji Q.P.Ji W.Ji x.B.Ji x.L.Ji y.y.Ji x.Q.Jia Z.K.Jia D.Jiang H.B.Jiang P.C.Jiang S.S.Jiang T.J.Jiang x.S.Jiang y.Jiang J.B.Jiao J.K.Jiao Z.Jiao S.Jin y.Jin M.Q.Jing x.M.Jing T.Johansson S.Kabana N.Kalantar-Nay.stanaki x.L.Kang x.S.Kang M.Kavatsy.k B.C.Ke V.Khachatry.n A.Khoukaz R.Kiuchi O.B.Kolcu B.Kopf M.Kuessner x.Kui A.Kupsc W.K\"uhn J.J.Lane P.Larin L.Lavezzi T.T.Lei Z.H.Lei H.Leithoff M.Lellmann T.Lenz C.Li C.Li C.H.Li Cheng Li D.M.Li F.Li G.Li H.Li H.B.Li H.J.Li H.N.Li Hui Li J.R.Li J.S.Li K.Li L.J.Li L.K.Li Lei Li M.H.Li P.R.Li Q.M.Li Q.x.Li R.Li S.x.Li T.Li W.D.Li W.G.Li x.Li x.H.Li x.L.Li x.y.Li y Institute of High Energy.Phy.ics Chinese Academy of SciencesBeijing 100049China Beihang University Beijing 100191China Bochum Ruhr-University D-44780 BochumGermany Budker Institute of Nuclear Phy.ics SB RAS(BINP) Novosibirsk 630090Russia Carnegie Mellon University PittsburghPennsylvania 15213USA Central China Normal University Wuhan 430079China Central South University Changsha 410083China China Center of Advanced Science and Technology Beijing 100190China China University.of Geosciences Wuhan 430074China Chung-Ang University Seoul06974Republic of Korea COMSATS University.Islamabad Lahore CampusDefence RoadOff Raiwind Road54000 LahorePakistan Fudan University Shanghai 200433China GSI Helmholtzcentre for Heavy.Ion Research GmbH D-64291 DarmstadtGermany Guangx. Normal University Guilin 541004China Guangx. University Nanning 530004China Hangzhou Normal University Hangzhou 310036China Hebei University Baoding 071002China Helmholtz Institute Mainz Staudinger Weg 18D-55099 MainzGermany Henan Normal University Xinxiang 453007China Henan University Kaifeng 475004China Henan University.of Science and Technology Luoyang 471003China Henan University.of Technology Zhengzhou 450001China Huangshan College Huangshan 245000China Hunan Normal University Changsha 410081China Hunan University Changsha 410082China Indian Institute of Technology.Madras Chennai 600036India Indiana University BloomingtonIndiana 47405USA INFN Laboratori Nazionali di Frascati INFN Laboratori Nazionali di FrascatiI-00044FrascatiItaly INFN Laboratori Nazionali di Frascati INFN Sezione di PerugiaI-06100PerugiaItaly INFN Laboratori Nazionali di Frascati University of PerugiaI-06100PerugiaItaly INFN Sezione di Ferrara INFN Sezione di FerraraI-44122FerraraItaly INFN Sezione di Ferrara University of FerraraI-44122FerraraItaly Inner Mongolia University Hohhot 010021China Institute of Modern Phy.ics Lanzhou 730000China Institute of Phy.ics and Technology Peace Avenue 54BUlaanbaatar 13330Mongolia Instituto de A

Using e^(+)e^(−)annihilation data corresponding to an integrated luminosity.of 2.93 fb^(−1)taken at the center-of-mass energy.s=3.773 GeV with the BESIII detector,a joint amplitude analy.is is performed on the decay. D^(0)→π^(+)π^(−)π^(+)π^(−)and D^(0)→π^(+)π^(−)π^(0)π^(0)(non-η).The fit fractions of individual components are obtained,and large interferences among the dominant components of the decay. D^(0)→a_(1)(1260)π,D^(0)→π(1300)π,D^(0)→ρ(770)ρ(770),and D^(0)→2(ππ)_(S)are observed in both *** the obtained amplitude model,the CP-even fractions of D^(0)→π^(+)π^(−)π^(+)π^(−)and D^(0)→π^(+)π^(−)π^(0)π^(0)(non-η)are determined to be(75.2±1.1_(stat).±1.5_(sy.t.))%and(68.9±1.5_(stat).±2.4_(sy.t.))%,*** branching fractions of D^(0)→π^(+)π^(−)π^(+)π^(−)and D^(0)→π^(+)π^(−)π^(0)π^(0)(non-η)are measured to be(0.688±0.010_(stat.)±0.010_(sy.t.))%and(0.951±0.025_(stat.)±0.021_(sy.t.))%,*** amplitude analy.is provides an important model for the binning strategy.in measuring the strong phase parameters of D^(0)→4πwhen used to determine the CKM angleγ(ϕ_(3))via the B^(−)→DK^(−)decay.

关键词： BESIII D^(0)meson decay. amplitude analy.is CP-even fraction

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Efficient and Stable Inverted Perovskite Solar Modules Enabled by.Solid-Liquid Two-Step Film Formation

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Nano-Micro Letters 2024年第9期16卷 571-582页

作者： Juan zhang x.aofei Ji x.aoting Wang Liujiang zhang Ley. Bi Zhenhuang Su x.ngy. Gao Wenjun zhang Lei Shi Guoqing Guan Abuliti Abudula x.aogang Hao Liy.u y.ng Qiang Fu Alex.K.‑y.Jen Linfeng Lu Graduate School of Science and Technology Hirosaki University3‑BunkyochoHirosaki 036‑8561Japan Department of Materials Science and Engineering Department of ChemistryHong Kong Institute for Clean EnergyCity University of Hong Kong KowloonHong Kong 999077People’s Republic of China The Interdisciplinary.Research Center Shanghai Advanced Research InstituteChinese Academy of SciencesShanghai 201210People’s Republic of China Shanghai Sy.chrotron Radiation Facility.SSRF) Zhangjiang LabShanghai Advanced Research InstituteChinese Academy of SciencesShanghai201204People’s Republic of China JINNENG Clean Energy.Technology.Ltd. Jinzhong 030300ShanxiPeople’s Republic of China Hangzhou Zhongneng Photoelectricity.Technology.Co. Ltd.Hangzhou 310018People’s Republic of China College of Chemical Engineering and Technology Taiyuan University of TechnologyTaiyuan 030024People’s Republic of China Institute of Regional Innovation Hirosaki University3‑BunkyochoHirosaki 036‑8561Japan

A considerable efficiency.gap ex.sts between large-area perovskite solar modules and small-area perovskite solar *** control of forming uniform and large-area film and perovskite cry.tallization is still the main obstacle restricting the efficiency.of *** this work,we adopted a solid-liquid two-step film formation technique,which involved the evaporation of a lead iodide film and blade coating of an organic ammonium halide solution to prepare perovskite *** method possesses the advantages of integrating vapor deposition and solution methods,which could apply.to substrates with different roughness and avoid using tox.c solvents to achieve a more uniform,large-area perovskite ***,modification of the NiO_(x./perovskite buried interface and introduction of Urea additives were utilized to reduce interface recombination and regulate perovskite *** a result,a large-area perovskite film possessing larger grains,fewer pinholes,and reduced defects could be *** inverted PSM with an active area of 61.56 cm^(2)(10×10 cm^(2)substrate)achieved a champion power conversion efficiency.of 20.56%and significantly.improved *** method suggests an innovative approach to resolving the uniformity.issue associated with large-area film fabrication.

关键词： Inverted perovskite solar cells Perovskite solar modules Two-step film formation Cry.tallization Defect passivation

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Impact of effective stress on permeability.for carbonate fractured-vuggy.rocks

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Journal of Rock Mechanics and Geotechnical Engineering 2024年第3期16卷 942-960页

作者： Ke Sun Huiqing Liu Juliana y.Leung Jing Wang y.bin Feng Renjie Liu Zhijiang Kang y.n zhang State Key.Laboratory.of Petroleum Resources and Prospecting China University of PetroleumBeijing102249China School of Mining&Petroleum Engineering University of AlbertaEdmontonT6G 1H9Canada SINOPEC Petroleum Ex.loration and Production Research Institute Beijing100083China

To gain insight into the flow mechanisms and stress sensitivity.for fractured-vuggy.reservoirs,several core models with different structural characteristics were designed and fabricated to investigate the impact of effective stress on permeability.for carbonate fractured-vuggy.rocks(CFVR).It shows that the permeability.performance curves under different pore and confining pressures(*** stress conditions)for the fractured core models and the vuggy.core models have similar change *** ranges of permeability.variation are significantly.wider at high pore pressures,indicating that permeability.reduction is the most significant during the early.stage of development for fractured-vuggy.*** each obtained effective stress coefficient for permeability.ESCP)varies with the changes in confining pressure and pore pressure,the effective stresses for permeability.of four representative CFVR show obvious nonlinear characteristics,and the variation ranges of ESCP are all between 0 and ***,a comprehensive ESCP mathematical model considering triple media,including matrix.pores,fractures,and dissolved vugs,was *** is proved theoretically.that the ESCP of CFVR generally.varies between 0 and ***,the regression results showed that the power model ranked highest among the four empirical models mainly.applied in stress sensitivity.characterization,followed by.the logarithmic model,ex.onential model,and binomial *** concept of“permeability.decline rate”was introduced to better evaluate the stress sensitivity.performance for CFVR,in which the one-fracture rock is the strongest,followed by.the fracture-vug rock and two-horizontalfracture rock;the through-hole rock is the *** general,this study.provides a theoretical basis to guide the design of development and adjustment programs for carbonate fractured-vuggy.reservoirs.

关键词： Effective stress Permeability Carbonate fractured-vuggy.rocks Structure characteristics Stress sensitivity

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Periodic Variation Studies of the Two Short Period W UMa-ty.e Eclipsing Binaries: Lx.Ly. and V0853 Aur

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Research in Astronomy.and Astrophy.ics 2024年第1期24卷 273-284页

作者： x. zhang Bin zhang School of Phy.ics and Electronic Science Guizhou Normal UniversityGuiyang 550001China Guizhou Provincial Key.Laboratory.of Radio Astronomy.and Data Processing Guizhou Normal UniversityGuiyang 550025China

In this paper,new light curves(LCs) of contact eclipsing binary.CEB) sy.tems Lx.Ly. and V0853 Aur are presented and analy.ed by.using the 2015 version of the Wilson-Devinney.W-D) *** order to ex.lain their asy.metric LCs,cool starspots on the components were *** is suggested that their fill-out degrees are f=12.0%(Lx.Ly.) and f=26.3%(V0853 Aur).At the same time,we found that Lx.Ly. is a W-ty.e eclipsing binary.EB) with an orbital inclination of i=84°.88 and a mass ratio of q=2.31.V0853 Aur is also a W-ty.e CEB with a mass ratio of q=2.77 and an orbital inclination of i= 79°.*** on all available times of light minimum,their orbital period changes are studied by.using the O-C *** O-C diagram of Lx.Ly. reveals a cy.lic oscillation with a period of about 14.84 y. and an amplitude of 0.0019 day.,which can be ex.lained by.the light-travel time effect(LTTE) due to the presence of a third body.with a minimum mass of0.06M_⊙.For V0853 Aur,it is discovered that the O-C diagram of the sy.tem also shows a cy.lic oscillation with a period of 9.64 y. and an amplitude of 0.03365 *** cy.lic oscillation of V0853 Aur can be attributed to the LTTE by.means of a third body.with a mass no less than 3.77M_⊙.The third body.may.play.an important role in the formation and evolution of these sy.tems.

关键词： stars:activity (stars:)binaries(including multiple):close (stars:)binaries:eclipsing (stars:)brown dwarfs stars:evolution stars:formation

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Ex.rcise preconditioning alleviates ischemia-induced memory.deficits by.increasing circulating adiponectin

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Neural Regeneration Research 2025年第5期20卷 1445-1454页

作者： Meifeng Zheng Borui zhang Sonata S y.y.u Kwok-Fai So Li zhang Haining Ou Department of Rehabilitation Medicine Guangzhou Medical UniversityGuangzhouGuangdong ProvinceChina Department of Rehabilitation Medicine The Fifth Clinical College of Guangzhou Medical UniversityGuangzhouGuangdong ProvinceChina Key.Laboratory.of CNS Regeneration(Ministry.of Education) Guangdong-Hong Kong-Macao Institute of CNS RegenerationJinan UniversityGuangzhouGuangdong ProvinceChina Department of Rehabilitation Sciences The Hong Kong Polytechnic UniversityHong Kong Special Administrative RegionChina State Key.Laboratory.of Brain and Cognitive Science Li Ka Shing Faculty of MedicineThe University of Hong KongHong Kong Special Administrative RegionChina Center for Ex.rcise and Brain Science School of PsychologyShanghai University of SportShanghaiChina Neuroscience and Neurorehabilitation Institute University of Health and Rehabilitation SciencesQingdaoShandong ProvinceChina

Cerebral ischemia is a major health risk that requires preventive approaches in addition to drug *** ex.rcise enhances neurogenesis and sy.aptogenesis,and has been widely.used for functional rehabilitation after *** this study.we determined whether ex.rcise training before disease onset can alleviate the severity.of cerebral *** also ex.mined the role of ex.rcise-induced circulating factors in these *** mice were subjected to 14 day. of treadmill ex.rcise training before surgery.for middle cerebral artery.*** found that this ex.rcise pre-conditioning strategy.effectively.attenuated brain infarct area,inhibited gliogenesis,protected sy.aptic proteins,and improved novel object and spatial memory.*** analy.is showed that circulating adiponectin play. a critical role in these preventive effects of *** activation of adiponectin receptors by.Adipo Ron mimicked the effects of ex.rcise,while inhibiting receptor activation abolished the ex.rcise *** summary.our results suggest a crucial role of circulating adiponectin in the effects of ex.rcise pre-conditioning in protecting against cerebral ischemia and supporting the health benefits of ex.rcise.

关键词： adiponectin cerebral ischemia ex.rcise pre-conditioning hippocampus memory.function middle cerebral artery.occlusion prefrontal cortex sy.aptic proteins treadmill ex.rcise

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Inflammatory.Factor IL1αInduces Aberrant Astrocy.e Proliferation in Spinal Cord Injury.Through the Grin2c/Ca^(2+)/CaMK2b Pathway

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Neuroscience Bulletin 2024年第4期40卷 421-438页

作者： y. x.a Lu Ding Changlin zhang Qi x. Ming Shi Tianshun Gao Feng-Quan Zhou David y.B.Deng Scientific Research Center The Seventh Affiliated Hospital of Sun Yat-sen UniversityShenzhen518107China Department of Gy.ecology The Seventh Affiliated Hospital of Sun Yat-sen UniversityShenzhen518107China Pelvic Floor Disorders Center The Seventh Affiliated Hospital of Sun Yat-sen UniversityShenzhen518107China Big Data Center The Seventh Affiliated Hospital of Sun Yat-sen UniversityShenzhen518107China Sir Run Run Shaw Hospital Zhejiang University School of MedicineHangzhou310016China Orthopaedic and Neurological Repair Center The Seventh Affiliated Hospital of Sun Yat-sen UniversityShenzhen518107China

Spinal cord injury.SCI)is one of the most devastating traumas,and the aberrant proliferation of astrocy.es usually.causes neurological ***,the mechanism underly.ng astrocy.e over-proliferation after SCI is ***2c(glutamate ionotropic receptor ty.e 2c)play. an essential role in cell *** bioinformatic analy.is indicated that Grin2c and Ca^(2+)transport functions were inhibited in astrocy.es after *** of Grin2c stimulated astrocy.e proliferation by.inhibiting the Ca^(2+)/calmodulin-dependent protein kinase 2b(CaMK2b)pathway.in *** screening different inflammatory.factors,interleukin 1α(IL1α)was further found to inhibit Grin2c/Ca^(2+)/CaMK2b and enhance astrocy.e proliferation in an ox.dative damage *** of IL1αusing neutralizing antibody.resulted in increased Grin2c ex.ression and the inhibition of astrocy.e proliferation ***,this study.suggests that IL1αpromotes astrocy.e proliferation by.suppressing the Grin2c/Ca^(2+)/CaMK2b pathway.after SCI,revealing a novel pathological mechanism of astrocy.e proliferation,and may.provide potential targets for SCI repair.

关键词： IL1α Grin2c Astrocy.e Spinal cord injury

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Evolutionary.history.shapes variation of wood density.of tree species across the world

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Plant Diversity 2024年第3期46卷 283-293页

作者： Fangbing Li Hong Qian Jordi Sardans Dzhamal y.Amishev Zix.an Wang Changy.e zhang Tonggui Wu x.aoniu x. x.ao Tao x.ngzhao Huang Anhui Province Key.Laboratory.of Forest Resources and Silviculture Anhui Agricultural UniversityHefei 230036China State Key.Laboratory.of Subtropical Silviculture Zhejiang A&F UniversityHangzhou 311300China Research and Collections Center Illinois State Museum1011 East Ash StreetSpringfieldIL 62703USA CREAF Cerdanyola del VallesBarcelona 08193Spain Global Ecology.Unit CREAF-CSIC-UAB CSICBellaterraBarcelona 08193Spain Key.Laboratory.of Ecosy.tem Carbon Source and Sink China Meteorological Administration(ECSS-CMA)School of Applied MeteorologyNanjing University of Information Science&Technology219 Ningliu RoadNanjing 210044China Department of Natural Resources Management Lakehead UniversityThunder BayOntario P7B 5E1Canada School of Forestry.Landscape of Architecture Anhui Agricultural UniversityHefei 230036China Research Institute of Subtropical Forestry Chinese Academy of ForestryHangzhou 311400China

The effect of evolutionary.history.on wood density.variation may.play.an important role in shaping variation in wood density.but this has largely.not been *** a comprehensive global dataset including 27,297 measurements of wood density.from 2621 tree species worldwide,we test the hy.othesis that the legacy.of evolutionary.history.play. an important role in driving the variation of wood density.among tree *** assessed phy.ogenetic signal in different tax.nomic(e.g.,angiosperms and gy.nosperms)and ecological(e.g.,tropical,temperate,and boreal)groups of tree species,ex.lored the biogeographical and phy.ogenetic patterns of wood density.and quantified the relative importance of current environmental factors(e.g.,climatic and soil variables)and evolutionary.history.i.e.,phy.ogenetic relatedness among species and lineages)in driving global wood density.*** found that wood density.display.d a significant phy.ogenetic *** density.differed among different biomes and climatic zones,with higher mean values of wood density.in relatively.drier regions(highest in subtropical desert).Our study.revealed that at a global scale,for angiosperms and gy.nosperms combined,phy.ogeny.and species(representing the variance ex.lained by.tax.nomy.and not direct ex.lained by.long-term evolution process)ex.lained 84.3%and 7.7%of total wood density.variation,respectively.whereas current environment ex.lained 2.7%of total wood density.variation when phy.ogeny.and species were taken into *** angiosperms and gy.nosperms were considered separately.the three proportions of ex.lained variation are,respectively.84.2%,7.5%and 6.7%for angiosperms,and 45.7%,21.3%and 18.6%for *** study.shows that evolutionary.history.outpaced current environmental factors in shaping global variation in wood density.

关键词： Wood density Phy.ogeny Angiosperms Gy.nosperms Climate factors Biophy.ical parameters

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