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Science China Earth Sciences 2020年第1期63卷 167-168页

作者： Jinming SONG qidong wang CAS Key Laboratory of Marine Ecology and Environmental Sciences Institute of OceanologyChinese Academy of SciencesQingdao 266071China Marine Ecology and Environmental Science Laboratory Pilot National Laboratory for Marine Science and Technology(Qingdao)Qingdao 266237China University of Chinese Academy of Sciences Beijing 100049China Center for Mega-Science Chinese Academy of SciencesQingdao 266071China

It has been confirmed by a large number of studies that iron can significantly improve the carbon fixation level in the high-latitude oceans (Martinez-Garcia et al., 2014). Although there are many studies on the mechanism of ironcarbon coupling in the modem ocean, the research on ironnitrogen-carbon coupling is rare (Tagliabue et al., 2014;Song, 2010). It is of great significance for the prediction of future ocean changes to identify the key processes of modem ocean and analyze the past ocean changes.

关键词： latitude ocean prediction

The bacterial diversity and community composition altered in the oxygen minimum zone of the Tropical Western Pacific Ocean

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Journal of Oceanology and Limnology 2021年第5期39卷 1690-1704页

作者： Qiqi SUN Jinming SONG Xuegang LI Huamao YUAN qidong wang Shandong Peanut Research Institute Qingdao 266100China Key Laboratory of Marine Ecology and Environmental Sciences Institute ofOceanologyChinese Academy of SciencesQingdao 266071China Laboratory for Marine Ecology and Environmental Science Pilot NationalLaboratory for Marine Science and Technology(Qingdao)Qingdao 266237China University of Chinese Academy of Sciences Beijing 100049China Center for Ocean Mega-Science Chinese Academy of SciencesQingdao266071China

The oxygen minimum zones(OMZs)are globally expanding,yet the variation pattern of microbial communities related to dissolved oxygen levels remain *** variability of bacterial diversity and community composition(repre sented by 16 S rRNA)of six stations was investigated within the water column in the seamount area of Tropical Western Pacific Ocean(TWPO)in May *** seawater has dissolved oxygen(DO)concentration of 3.01-6.68 mg/L and the core of the oxygen minimum zones was located between the depths of 650 m and 1750 *** bacterial alpha-diversity showed unimodal pattern with the decreasing DO with depths and peaked in the upper oxycline(UO)of *** bacterial community structure of the mixed layer(ML)and the bottom layer clustered and separated from each other,while those of UO and the OMZ core(OM)clustered and ***,bacterial community composition transitioned from being Alphaproteobacteria and Gammaproteobacteria-dominant in ML to being Gammaproteobacteria and Nitrososphaeria/Deltaproteobacteria-dominant in UO and OM,and then changed to being Clostridia and unidentified Actinobacteria-dominant in the bottom ***,both bacterial alpha-diversity and the abundant classes fitted varying sectioned functions with *** DO solely explained 40.37%of the variation of bacterial community composition among layers(P<0.001).The predicted function profiling showed that the water column was predominant by chemoheterotrophy,cyanobacteria,and photoautotrophy in ML,by chemoheterotrophy and nitrate/sulfide cycling in UO and OM,and by chemoheterotrophy and ferme ntation in the bottom *** findings revealed the DO-associated variation in bacterial diversity and community composition,and help to clarify the potential responses of microbes and their involved biogeochemical processes to the expansion and intensification of OMZs.

关键词： bacterial diversity community composition oxygen minimum zones(OMZs) dissolved oxygen Tropical Western Pacific Ocean(TWPO)

EFFECTS OF Al CONTENT ON STRUCTURAL STABILITY AND MAGNETIC PROPERTIES OF Sm_2(Fe,Al)_(17) COMPOUNDS

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中国有色金属学会会刊：英文版 1999年第1期9卷 42-45页

作者： Xu, Rengen wang, Xinhua Wu, Jianmin Pan, Hongge Chen, Changpin wang, qidong Dai, Lichi Zhejiang Univ Hangzhou China

ＩＮＴＲＯＤＵＣＴＩＯＮＩｔｉｓｗｅｌｋｎｏｗｎｔｈａｔＳｍ２Ｆｅ１７Ｎｙｃｏｍｐｏｕｎｄｓｈａｖｅｇｏｏｄｉｎｔｒｉｎｓｉｃｍａｇｎｅｔｉｃｐｒｏｐｅｒｔｉｅｓ［１］．Ｂｅｃａｕｓｅｏｆｔｈｅｐｏｏｒｓｔａｂｉ... 详细信息

ＩＮＴＲＯＤＵＣＴＩＯＮＩｔｉｓｗｅｌｋｎｏｗｎｔｈａｔＳｍ２Ｆｅ１７Ｎｙｃｏｍｐｏｕｎｄｓｈａｖｅｇｏｏｄｉｎｔｒｉｎｓｉｃｍａｇｎｅｔｉｃｐｒｏｐｅｒｔｉｅｓ［１］．ＢｅｃａｕｓｅｏｆｔｈｅｐｏｏｒｓｔａｂｉｌｉｔｙｏｆＳｍ２Ｆｅ１７Ｎｙａｔ...

关键词： Sm 2Fe 17 Al hydride Curie temperature structural stability

ELECTROCHEMICAL PROPERTIES OF Zr-V-Ni SYSTEM HYDROGEN STORAGE ALLOYS

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中国有色金属学会会刊：英文版 1998年第3期8卷 53-56页

作者： Xiaoguang, Yang Xiaobin, Zhang Kangying, Shu Ganfu, Lin Yongquan, Lei qidong, wang Wenkui, Zhang Zhejiang Univ Hangzhou China

１ＩＮＴＲＯＤＵＣＴＩＯＮＩｎｔｈｅｂｉｎａｒｙａｌｏｙｓＺｒＭ２（Ｍ＝Ｖ，ＣｒｏｒＭｎ３ｄｔｒａｎｓｉｔｉｏｎｍｅｔａｌ），ＺｒＶ２ｍａｉｎｌｙｗｉｔｈａＣ１５Ｌａｖｅｓｐｈａｓｅｃａｎａｂｓｏｒｂｔｈｅｈｉｇｈｅ... 详细信息

１ＩＮＴＲＯＤＵＣＴＩＯＮＩｎｔｈｅｂｉｎａｒｙａｌｏｙｓＺｒＭ２（Ｍ＝Ｖ，ＣｒｏｒＭｎ３ｄｔｒａｎｓｉｔｉｏｎｍｅｔａｌ），ＺｒＶ２ｍａｉｎｌｙｗｉｔｈａＣ１５Ｌａｖｅｓｐｈａｓｅｃａｎａｂｓｏｒｂｔｈｅｈｉｇｈｅｓｔｈｙｄｒｏｇｅｎｃｏｎｔｅｎ...

关键词： Zr V Ni alloys alloying electrode performances

Control factors of DIC in the Y3 seamount waters of the Western Pacific Ocean

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Journal of Oceanology and Limnology 2020年第4期38卷 1215-1224页

作者： MA Jun SONG Jinming LI Xuegang YUAN Huamao LI Ning DUAN Liqin wang qidong CAS Key Laboratory of Marine Ecology and Environmental Sciences Institute of OceanologyChinese Academy of SciencesQingdao 266071China Marine Ecology and Environmental Science Laboratory Qingdao National Laboratory for Marine Science and TechnologyQingdao 266237China University of Chinese Academy of Sciences Beijing 100049China Center for Ocean Mega-Science Chinese Academy of SciencesQingdao 266071China

An investigation was carried out in the Y3 seamount area of the Western Pacific Ocean in December 2014,and the distribution of dissolved inorganic carbon(DIC)and its relationship with environmental factors in this area were *** results show that DIC concentration was higher in the adjacent waters of the Y3 seamount area,and the uplift of DIC isolines at the stations was close to the ***,interaction between the North Equatorial Current(NEC)and the Y3 seamount affected the DIC distribution,i.e.,the upwelling in the same direction of the NEC was obvious,resulting in a decreasing trend of average concentration of DIC in the 200 m water column from the top to the two sides in this direction but in the cross *** DIC concentration increased with the water depth increase,and its distribution was affected by various environmental *** the surface water,high temperature was a decisive factor for the decrease of the DIC concentration,but the photosynthesis of phytoplankton showing only a weak *** the North Pacific Tropic Water(NPTW),DIC production rate from organic matter decomposition was higher than that of DIC consumption by phytoplankton photosynthesis,leading to a continual increase of *** the North Pacific Intermediate Water(NPIW),organic matter decomposition played a leading role in the increase of *** the deep water,decomposition of organic matter weakened,and the dissolution of CaCO3 controlled the carbonate system,and DIC had the smallest variation range.

关键词： dissolved inorganic carbon(DIC) Western Pacific Ocean Y3 seamount water masses environmental factors

Analysis of differences in nutrients chemistry in seamount seawaters in the Kocebu and M4 seamounts in Western Pacific Ocean

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Journal of Oceanology and Limnology 2021年第5期39卷 1662-1674页

作者： Jun MA Jinming SONG Xuegang LI qidong wang Huamao YUAN Ning LI Liqin DUAN CAS Key Laboratory of Marine Ecology and Environmental Sciences Institute of OceanologyChinese Academy of SciencesQingdao 266071China Laboratory for Marine Ecology and Environmental Science Qingdao NationalLaboratory for Marine Science and TechnologyQingdao 266237China University of Chinese Academy of Sciences Beijing 100049China Center for Ocean Mega-Science Chinese Academy of SciencesQingdao266071China

Comprehensive surveys were conducted in the Kocebu deep seamount and the M4 shallow seamount in the Western Pacific Ocean in March 2018 and May 2019,*** distributions of nutrients in euphotic zone of the two seamount-areas were revealed,and the causative controlling factors were *** show that the vertical distribution of nutrients in the two seamount-areas accorded with the general law of the oligotrophic *** concentrations of NO_(3)-N,PO_(4)-P,and SiO_(3)-Si generally increased gradually with the increase of water depth,and they were extremely low in water layers within100 *** area of high NO_(2)-N concentration well agreed with the Deep Chlorophyll Maximum *** the other hand,the distribution of water masses and phytoplankton and hydrological conditions in the two seamount-areas were different,resulting in lower concentrations of NO_(3)-N,PO_(4)-P,and SiO_(3)-Si in the water layers below 100 m in the Kocebu seamount area than those in the M4 seamount *** addition,NO_(2)-N was affected by the distribution of phytoplankton,and distributed mainly in the water layers of 150 and100 *** was upwelling in the euphotic zone of M4 seamount area,causing accumulations of nutrients and phytoplankton around the seamount,forming a"seamount effect";however,no such an effect was found in Kocebu seamount *** by the composition of biological community and the"seamount effect",the nitrogen limitation in the M4 seamount area was not significant,and the dissolved inorganic nitrogen(DIN):PO_(4)-P and SiO_(3)-Si:DIN were closer to the Redfield ratios.

关键词： nutrients comparison seamount Western Pacific Ocean

Neighborhood form and CO2 emission： evidence from 23 neighborhoods in Jinan, China

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Frontiers of Environmental Science & Engineering 2014年第1期8卷 79-88页

作者： Jiaxing GUO Huan LIU Yang JIANG Dongquan HE qidong wang Fei MENG Kebin HE State Key Joint Laboratory of Environment Simulation and Pollution Control School of Environment Tsinghua University Beijing 100084 China The Energy Foundation Beijing 100004 China School of Architecture Tsinghua University Beijing 100084 China

To understand the household C02 emission level in China, as well as how much the neighborhoods＇ socio-economic or design factors could influence the CO2 emission, 23 neighborhoods in Jinan were investigated in 2009 and 2010. These neighborhoods fall into four different types： superblock, enclave, grid and traditional. The household CO2 emission includes sources of both in- home energy use and passenger transportation. The average CO2 emission per household is 7.66 t.a^-1, including 6.87 t in-home operational emission and 792 kg transportation emission. The household CO2 emission by neighborhood categories is 10.97, 5.65, 6.49, 5.40 t-household-1. a-1 for superblock, enclave, grid and tradi- tional respectively. Superblock has the highest average emission and also the highest percent （more than 25%） of transportation emission among four different types of neighborhoods. The residential CO2 emission of superb- lock neighborhoods in Jinan has already reached the level in developed countries nearly ten years ago. It is predictable that more superblock neighborhoods would be built in China with the fast urbanization. How to avoid the rapid household CO2 emission growth in the future would be a systematic issue. The study also found that in addition to income and apartment area, household density, land use mix and accessibility to public transportation are three primary factors which have significant impacts on CO2 emission. High density, mixed land use and convenient accessibility to public transportation tend to reduce household CO2 emission.

关键词： C02 emission neighborhood type transporta-tion household energy China

Characteristics and biogeochemical effects of oxygen minimum zones in typical seamount areas,Tropical Western Pacific

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Journal of Oceanology and Limnology 2021年第5期39卷 1651-1661页

作者： qidong wang Jinming SONG Xuegang LI Jun MA Huamao YUAN Ning LI Liqin DUAN CAS Key Laboratory of Marine Ecology and Environmental Sciences Institute of OceanologyChinese Academy of SciencesQingdao 266071China Laboratory for Marine Ecology and Environmental Science Pilot NationalLaboratory for Marine Science and Technology(Qingdao)Qingdao 266237China University of Chinese Academy of Sciences Beijing 100049China Center for Ocean Mega-Science Chinese Academy of SciencesQingdao266071China

As a serious consequence of ocean warming and increased stratification,a rapid decrease in dissolved oxygen(DO)content of the world’s oceans has attracted more and more attention *** open oceans,the decline of DO is characterized by the expansion of oxygen minimum zones(OMZs)in the ocean *** OMZs exist within the mesopelagic zones of the Tropical Western Pacific(TWP),but have gained very little *** this study,we focus on characteristics of OMZs in three typical seamounts areas(named Y3,M2,and Kocebu,respectively)of the *** on distributions of DO,the OMZs of the three seamounts areas are very different in scope,thickness,and the minimum oxygen *** significantly different characteristics of OMZs at the seamounts are mainly because they are located in regions affected by different ventilation and consumption *** quantitatively describe the intensity of OMZs,a parameter,IOMZ,is firstly *** to this quantitative parameter,the intensity order of OMZs for the three seamounts areas is Kocebu>M2>*** biogeochemical effects of OMZs in the three seamounts areas are discussed using *** higher IOMZ,the degradation of particulate organic carbon(POC)tends to be *** because of the limited data,their relationship still need more research to ***,if this relationship holds in global oceans,the presence of seamounts would—under climate warming with expanding OMZs—promote vertical transport of POC resulting in an enhanced biological *** study provides a new way to quantitatively study the impact of OMZs on the efficiency of biological pump.

关键词： oxygen minimum zone(OMZ) particulate organic carbon(POC) biogeochemical effect seamount Western Pacific

Hydriding-dehydriding properties of Mg_2Ni alloy modified by ball-milling in tetrahydrofuran

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Rare Metals 2004年第2期23卷 138-142页

作者： CHEN Changpin wang Wei CHEN Yun CHEN Lixin wang qidong Department of Materials Science and Engineering, Zhejiang University Hangzhou 310027, China Department of Materials Science and Engineering Zhejiang University Hangzhou 310027

A new approach of ball-milled Mg_2Ni in tetrahydrofuran (THF) to improve thehydriding kinetics of Mg_2Ni alloy is suggested and studied. It is found that the modified alloydisplayed the improved activity for hydriding even at relatively low temperature (e.g., 323-373 K).In the case of the sample milled in THF for 20 h, the hydrogen content (mass fraction) reaches 1.6 %at 323 K, 2.1% at 348 K and 3.4% at 448 K, respectively. The use of THF during grinding led to thechange of the structure, which is reflected by the broadening and weakening of the diffraction peaksin the XRD spectra. The XPS analysis shows that Mg (2s) binding energy peak of Mg_2Ni aftermodification shifted from a lower binding energy to a higher one, indicating the charge transferencebetween Mg and THF and the formation of catalytically active electron donor-acceptor (EDA)complexes on the surface of modified Mg_2Ni alloy.

关键词： metal materials Mg_2Ni alloy ball-milling tetrahydrofuran hydriding-dehydriding property

THE ELECTROCHEMICAL PERFORMANCES OF Zr-BASED HYDROGEN STORAGE ALLOYS

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中国有色金属学会会刊：英文版 1995年第3期5卷 61-65页

作者： Yang, Xiaoguang Lei, Yongquan Wu, Jing wang, qidong(Department of Materials Science and Engineering, Zhejiang University, Hangzhou 310027) Zhejiang Univ Hangzhou China

ＴＨＥＥＬＥＣＴＲＯＣＨＥＭＩＣＡＬＰＥＲＦＯＲＭＡＮＣＥＳＯＦＺｒ－ＢＡＳＥＤＨＹＤＲＯＧＥＮＳＴＯＲＡＧＥＡＬＬＯＹＳ￥Ｙａｎｇ，Ｘｉａｏｇｕａｎｇ；Ｌｅｉ，Ｙｏｎｇｑｕａｎ；Ｗｕ，Ｊｉｎｇ；Ｗａｎｇ，Ｑｉｄｏｎ... 详细信息

ＴＨＥＥＬＥＣＴＲＯＣＨＥＭＩＣＡＬＰＥＲＦＯＲＭＡＮＣＥＳＯＦＺｒ－ＢＡＳＥＤＨＹＤＲＯＧＥＮＳＴＯＲＡＧＥＡＬＬＯＹＳ￥Ｙａｎｇ，Ｘｉａｏｇｕａｎｇ；Ｌｅｉ，Ｙｏｎｇｑｕａｎ；Ｗｕ，Ｊｉｎｇ；Ｗａｎｇ，Ｑｉｄｏｎｇ（ＤｅｐａｒｔｍｅｎｔｏｆＭａｔ...

关键词： Zr-based Laves phase crystal structure electrode performances