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30 March 2009, Volume 21 Issue 1 Previous Issue    Next Issue
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CHARACTERISTICS OF THE AEROSOLS IN ZHONGSHAN STATION,ANTARCTICA HONG Jian-Jun, CHEN Li-Ai, Yang-Xu-Lin 2009, 21 (1):  1-14.  Abstract ( 2424 )   PDF (2517KB) ( 2101 )   Three years of bulk,high-volume aerosol samples were collected at Zhongshan Station in East Antarctica. Full name (INAA),(SEM-EDX) and (TEM-EDX) were applied respectively to study chemical species and physical features of aerosols. A graphical technique was applied to the INAA data. Results showed that Na,Cl,Mg,Ca,Sr,Br,I,Sr and Rb were marine elements while Al,Sc,Fe and Mn were crustal elements. Five elements (Se,Co,Sb,Zn,Cr) were highly abundant in the station aerosols either to marine or crustal sources,... Related Articles | Metrics

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INVESTIGATION OF BACTERIAL DIVERSITY IN SURFACE SEDIMENT FROM THE NORTHERN BERING SEA JU Yang, CENG Yin-Xin, TIAN Wen, ZHENG Tian-Ling 2009, 21 (1):  15-24.  Abstract ( 2187 )   PDF (1293KB) ( 1750 )   Biodiversity of bacteria in the top layer of the sediment from Northern Bering Sea was studied by a combination of RFLP and 16S rDNA analysis. Phylogenetic analysis showed that bacterial community composition of the sediment had a high diversity. 124 clones from the 16S rDNA library fell into ten bacterial groups,including Proteobacteria (49.6%),Acidobacteria (20.8%),Bacteroidetes (6.4%),Actinobacteria (5.6%),Planctomycetes (5.6%),Nitrospirae (4%),Verrucomicrobia (2.4%),Chloroflexi (1.6%),Fibrobacteres (0.8... Related Articles | Metrics

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DISTRIBUTION OF COPPER,CADMIUM AND ZINC IN THE SURFACE WATER OF PRYDZ BAY SUN Wei-Ping, HU Chuan-Yu, XUE Bin, BO Jian-Meng 2009, 21 (1):  25-32.  Abstract ( 2662 )   PDF (590KB) ( 2459 )   During the CHINARE-24 cruise(2007/11—2008/4),the investigation was carried out to focus on the concentrations and distribution of dissolved trace metals in the surface seawater of Prydz Bay. All the trace element analyses were done by AAS (Atomic Absorption Spectrometry) in the clean laboratory. The measurements showed that the average concentrations of Cu,Cd and Zn were 0.143,1.15 and 11.2 μg·dm-3,respectively. Compared with the Subantarctic Zone,the concentrations of trace metals in the surface seawater o... Related Articles | Metrics

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ISOLATION AND IDENTIFICATION OF ACTINOBACTERIA FROM RHIZOSPHERIC SOIL IN THE ARCTIC YELLOW RIVER STATION TENG Hai-Bei, TANG Hua-Xi, XIAO Hui, SHU Yong, LI Hui-Rong 2009, 21 (1):  33-42.  Abstract ( 2604 )   PDF (1041KB) ( 2120 )   Using spread-plate technique,actinobacterial strains were isolated from rhizospheric soil of 7 plants collected in the Arctic Yellow River Station(Ny-Alesund,the Arctic). 53 actinobacteria were indentified by the analysis of ARDRA and 16S rDNA sequences and were shown to represent strains from 8 genera: Streptomyces and Arthrobacter which is predominant and rare actinobacteria Rhodococcus,Saccharothrix,Rathayibacter,Micrococcus,Nocardia,Kribbella. Related Articles | Metrics

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INVESTIGATION ON ANTARCTIC MASS BALANCE WITH GRACE DI Ning, WANG Ze-Min, E Dong-Chen 2009, 21 (1):  43-47.  Abstract ( 2411 )   PDF (469KB) ( 1957 )   Using measurements of time-variable gravity field from the Gravity Recovery and Climate Experiment(GRACE)satellite,mass variations of the Antarctic ice and snow are estimated. Because C20 of GRACE is not accurate enough,C20 harmonic from Satellite Laser Ranging(SLR) is adopted instead. The results show that mass loses in West Antarctica,and mass is in balance in East Antarctica. And the rate of Antarctic mass loss is-0.689±0.172cm/a. Related Articles | Metrics

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SCATTERING FEATURES ANALYSES OF THE SHALLOW ANTARCTIC ICE SHEET BASED ON ICE-PENETRATING RADAR METHOD:A CASE-STUDY ALONG THE ZHONGSHAN STATION-DOME A TRANSECT JIANG Yun-Yun, SUN Bei, KE Chang-Jing, CUI Xiang-Bin, TANG Hua-Yuan, GUO Jing-Hua, ZHANG Xiang-Pei 2009, 21 (1):  48-59.  Abstract ( 2793 )   PDF (1902KB) ( 1750 )   Radio-echo detecting ice sheet is one of the most significant progresses in Antarctic ice sheet researches in recent 20 years. Ice-penetrating radar is a convenient and significant method to image and analyze the properties of Antarctic ice sheet internal structure. This research used the two-frequency (60 MHz and 179 MHz) radar to detect the radar internal reflection strata. The variations of the received power within 100—700 m of the ice sheet surface along the Zhongshan-Dome A transect showed that: the r... Related Articles | Metrics

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ADVANCES IN THE STUDY OF AIR-SEA CO_2 FLUXES IN THE SOUTHERN OCEAN SUN Heng, GAO Yin-Yong 2009, 21 (1):  60-68.  Abstract ( 2009 )   PDF (250KB) ( 2331 )   Southern Ocean is the most important CO2 sink in the world. Evaluating the air-sea CO2 fluxes in each sea area of Southern Ocean precisely is an important content of research on global carbon cycle,and also is significant to predict and evaluate the role of Southern Ocean while global warming is getting worse and worse. However,due to expansive area,execrable climate and complex hydrological and geochemical processes in the Southern Ocean,there are rather highly discrepancy and uncertainty in evaluating the... Related Articles | Metrics

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DESIGN AND FUNCTION ON DATABASE OF MICROORGANISMS FROM POLAR ENVIRONMENTS LING Xiao-Liang, SHU Yong, SHU Jian-Gang, CHEN Bei, JIA Meng-Yi, CHENG Wen-Fang 2009, 21 (1):  69-75.  Abstract ( 2496 )   PDF (425KB) ( 1657 )   The module of user administration,the module of data management and update,and the module of data search,need to be newly developed in the database of the microorganisms from Polar Environments,in combined with sharing the common modules developed in the database system for Chinese polar sciences and its data,and considering the particularity of the microorganism literature. This database is a web-based database with the B/S mode,which is designed primarily on the microorganisms,the users,and their microorg... Related Articles | Metrics

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】 CHARACTERISTICS OF MAJOR IONS IN SNOW AND RIVER WATER IN SVALBARD ZHONG Ling, KANG Shi-Chang, XU Pan-Wei, ZHANG Jiang-Gong 2009, 21 (1):  76-79.  Abstract ( 2251 )   PDF (109KB) ( 1550 )   The study reported major ion concentrations in snow pits and river water samples collected from Longyearbyen area,Svalbard in 2007. Comparison with major ion data of snow pits collected in 1996 showed that the concentrations of the most ions in the snow pits of 2007 are much lower than those of 1996. Ionic concentrations of river water are dominated by continental source,which is contributed by the rock corrasion when the melt water flows through the bedrocks. Related Articles | Metrics