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| 1 | Distribution and transportation of mercury from glacier to lake in the Qiangyong Glacier Basin, southern Tibetan Plateau, China显示文摘The Tibetan Plateau is home to the largest aggregate of glaciers outside the Polar Regions and is a source of fresh water to 1.4 billion people. Yet little is known about the transportation and cycling of Hg in high-elevation glacier basins on Tibetan Plateau. In this study, surface snow,glacier melting stream water and lake water samples were collected from the Qiangyong Glacier Basin. The spatiotemporal distribution and transportation of Hg from glacier to lake were investigated. Significant diurnal variations of dissolved Hg(DHg) concentrations were observed in the river water, with low concentrations in the morning(8:00 am–14:00 pm) and high concentrations in the afternoon(16:00 pm–20:00 pm). The DHg concentrations were exponentially correlated with runoff, which indicated that runoff was the dominant factor affecting DHg concentrations in the river water. Moreover, significant decreases of Hg were observed during transportation from glacier to lake. DHg adsorption onto particulates followed by the sedimentation of particulate-bound Hg(PHg) could be possible as an important Hg removal mechanism during the transportation process. Significant decreases in Hg concentrations were observed downstream of Xiao Qiangyong Lake, which indicated that the high-elevation lake system could significantly affect the distribution and transportation of Hg in the Qiangyong Glacier Basin. | Shiwei Sun | 2016 | Journal of Environmental Sciences2016，28，6： | 10 |
| 2 | Insights into mercury in glacier snow and its incorporation into meltwater runoff based on observations in the southern Tibetan Plateau显示文摘The Tibetan Plateau(TP) is recognized as 'Water Tower of Asia'. Yet our understanding of mechanisms influencing incorporation of mercury(Hg) into freshwater in mountain glaciers on the TP remains quite limited. Extensive sampling of environmental matrices(e.g., snow/ice)were conducted on the East Rongbuk glacier on Mt. Everest and Zhadang glacier on Mt.Nyainqentanglha for Hg speciation analysis. Speciated Hg behaved quite different during snowmelt: a preferential early release of DHg(dissolved Hg) was observed at the onset of snowmelt, whereas PHg(particulate-bound Hg) and THg(total Hg) become relatively enriched in snow and released later. Small fraction of Hg in snow was lost during a snowmelt day(18.9%–34.7%) with a large proportion(58.1%–87.3%) contributed by PHg decrease, indicating that the deposited Hg is most likely retained in glacier snow/ice. Furthermore, THg were positively correlated with PHg and crustal major ions(e.g., Ca^(2+), Mg^(2+)) during snowmelt, indicating that Hg is mainly migrated with particulates. The main pathway of Hg loss during snowmelt was most probably associated with release of PHg with meltwater, which was greatly influenced by ablation intensity of snow/ice. This should be paid particular concern as Hg preserved in mountain glaciers will mostly enter aquatic ecosystem as climate warms, impacting on downstream ecosystems adversely. Obvious decrease of THg during the downstream transport from glacier was observed with a large proportion contributed by PHg decrease. The main removal mechanism of Hg was associated with sedimentation of PHg during the transport process. | Shiwei Sun Shichang Kang Junming Guo Qianggong Zhang Rukumesh Paudyal Xuejun Sun Dahe Qin | 2018 | Journal of Environmental Sciences2018，30，6： | 9 |
| 3 | Carbonaceous particles in the atmosphere and precipitation of the Nam Co region, central Tibet显示文摘A continuous air and precipitation sampling for carbonaceous particles was conducted in a field observatory beside Nam Co, Central Tibetan Plateau during July of 2006 through January of 2007. Organic carbon (OC) was the dominant composition of the carbonaceous particles both in the atmosphere (1660 ng/m 3 ) and precipitation (476 ng/g) in this area, while the average elemental carbon (BC) concentrations in the atmosphere and precipitation were only 82 ng/m 3 and 8 ng/g, respectively. Very high OC/BC ratio suggested local secondary organic carbon could be a dominant contribution to OC over the Nam Co region, while BC could be mainly originated from Southern Asia, as indicated by trajectory analysis and aerosol optical depth. Comparison between the BC concentrations measured in Lhasa, those at 'Nepal Climate Observatory at Pyramid (NCO-P)' site on the southern slope of the Himalayas, and Nam Co suggested BC in the Nam Co region reflected a background with weak anthropogenic disturbances and the emissions from Lhasa might have little impact on the atmospheric environment here, while the pollutants from the Indo-Gangetic Basin of Southern Asia could be transported to the Nam Co region by both the summer monsoon and the westerly. | Jing Ming Cunde Xiao Junying Sun Shichang Kang Paolo Bonasoni | 2010 | Journal of Environmental Sciences2010，22，11： | 7 |
| 4 | Highly diversified Zika viruses imported to China, 2016显示文摘 | Yanjun Zhang Wenxian Chen Gary Wong Yuhai Bi Juying Yan Yi Sun Enfu Chen Hao Yan Xiuyu Lou Haiyan Mao Shichang Xia George F.Gao Weifeng Shi Zhiping Chen | 2016 | Protein & Cell2016，7，6： | 7 |
| 5 | The mass-balance characteristics and sensitivities to climate variables of Laohugou Glacier No.12,western Qilian Mountains,China显示文摘Due to global warming, glaciers on the Tibetan Plateau(TP) are experiencing widespread shrinkage; however, the mechanisms controlling glacier variations across the TP are still rather unclear, especially on the northeastern TP. In this study, a physically based, distributed surface-energy and mass-balance model was used to simulate glacier mass balance forced by meteorological data. The model was applied to Laohugou No. 12 Glacier, western Qilian Mountains, China, during2010~2012. The simulated albedo and mass balance were validated and calibrated by in situ measurements. The simulated annual glacier-wide mass balances were-385 mm water equivalent(w.e.) in 2010/2011 and-232 mm w.e. in 2011/2012,respectively. The mean equilibrium-line altitude(ELA) was 5,015 m a.s.l., during 2010~2012, which ascended by 215 m compared to that in the 1970 s. The mean accumulation area ratio(AAR) was 39% during the two years. Climatic-sensitivity experiments indicated that the change of glacier mass balance resulting from a 1.5 °C increase in air temperature could be offset by a 30% increase in annual precipitation. The glacier mass balance varied linearly with precipitation, at a rate of130 mm w.e. per 10% change in total precipitation. | JiZu Chen ShiChang Kang Xiang Qin WenTao Du WeiJun Sun YuShuo Liu | 2017 | Research in Cold and Arid Regions2017，9，6： | 6 |
| 6 | Potential Effect of Black Carbon on Glacier Mass Balance during the Past 55 Years of Laohugou Glacier No. 12, Western Qilian Mountains显示文摘This study reconstructed the annual mass balance(MB)of Laohugou Glacier No.12 in the western Qilian Mountains during 1961–2015.The annual MB was calculated based on a temperature-index and an accumulation model with inputs of daily air temperature and precipitation recorded by surrounding meteorological stations.The model was calibrated by in-situ MB measurements conducted on the glacier during 2010–2015.Change in constructed annual MB had three phases.During Phase Ⅰ(1961-1984),glacier-wide MB values were slightly positive with an average MB of 24±276 mm w.e.(water equivalent).During Phase Ⅱ(1984-1995),the MB values became slightly negative with an average MB of?50±276 mm w.e..The most negative MB values were found during Phase Ⅲ(1996–2015),with an average MB of?377±276 mm w.e.Climatic analysis showed that the warming led to accelerated glacier mass loss despite a persistent increase of precipitation during the analysis period.However,an increase of black carbon deposited on the glacier surface since the 1980s could have contributed to intensified glacier melt.From simulations and measurements of MB on the Urumqi Glacier No.1,26%of glacier melt caused by black carbon could be identified. | Jizu Chen Xiang Qin Shichang Kang Wentao Du Weijun Sun Yushuo Liu | 2020 | Journal of Earth Science2020，31，2： | 4 |
| 7 | Trace elements and rare earth elements in wet deposition of Lijiang,Mt.Yulong region,southeastern edge of the Tibetan Plateau显示文摘In order to investigate the compositions and wet deposition fluxes of trace elements and rare earth elements(REEs) in the precipitation of the southeastern edge of the Tibetan Plateau, 38 precipitation samples were collected from March to August in 2012 in an urban site of Lijiang city in the Mt. Yulong region. The concentrations of most trace elements and REEs were higher during the non-monsoon season than during the monsoon season,indicating that the lower concentrations of trace elements and REEs observed during monsoon had been influenced by the dilution effect of increased precipitation. The concentrations of trace elements in the precipitation of Lijiang city were slightly higher than those observed in remote sites of the Tibetan Plateau but much lower than those observed in the metropolises of China, indicating that the atmospheric environment of Lijiang city was less influenced by anthropogenic emissions, and, as a consequence, the air quality was still relatively good. However, the results of enrichment factor and principal component analysis revealed that some anthropogenic activities(e.g., the increasing traffic emissions from the rapid development of tourism) were most likely important contributors to trace elements, while the regional/local crustal sources rather than anthropogenic activities were the predominant contributors to the REEs in the wet deposition of Lijiang city. Our study was relevant not only for assessing the current status of the atmospheric environment in the Mt. Yulong region, but also for specific management actions to be implemented for the control of atmospheric inputs and the health of the environment for the future. | Junming Guo Shichang Kang Jie Huang Mika Sillanpaa Hewen Niu Xuejun Sun Yuanqing He Shijing Wang Lekhendra Tripathee | 2017 | Journal of Environmental Sciences2017，29，2： | 3 |
| 8 | Synthesis of a Novel Co-B/CTAB Catalyst via Solid-state-reaction at Room Temperature for Hydrolysis of Ammonia-borane显示文摘Cobalt-boride(Co-B)is emerging as one of the promising materials in the base-hydrolytic dehydrogena-tion of ammonia-borane(AB).In order to avoid the low specific area and poor catalytic capacity of Co-B catalyst caused by aggregation arising from the strong reducing property and rapid reaction condensation of sodium borohy-dride(NaBHa),novel cobalt boride/cetyltrimethylammonium bromide(Co-B/CTAB)catalyst was obtained via solid-state grinding at room temperature,and the catalyst was further characterized by XRD,SEM,XPS and BET.The hydrogen generation rate(HGR)was then determined by the hydrolysis reaction of AB.The SEM images indicate that a lot of irregular folds and curled edges are formed on the sample with a maximum surface area of 145.57 m2/g,thus possibly resulting in the high hydrogen production(HGR was 10.68 L.minlg),which may be attributed to CTAB that provide favorable large specific surface area and abundant porous structure.Additionally,catalyst will not be affected by solvants during solid-state reaction.As a diluent,the surfactant CTAB hindered the reaction rate of sodium borohydride reduction to cobalt boride and obtained the novel catalyst with a large specific surface area. | HU Haibin LONG Bo JIANG Yifan SUN Shichang Ibrahim LAWAN ZHOU Weiming- ZHANG Mingxin WANG Liwei ZHANG Fan YUAN Zhanhui | 2020 | Chemical Research in Chinese Universities2020，36，6： | 2 |
| 9 | Research progress on behaviors and environmental effects of mercury in the cryosphere of the Tibetan Plateau:a critical review显示文摘The behavior and fates of environmental pollutants within the cryosphere and the associated environmental impacts are of increasing concerns in the context of global warming.The Tibetan Plateau(TP),also known as the'Third Pole',represents one of the most important cryospheric regions in the world.Mercury(Hg)is recognized as a global pollutant.Here,we summarize the current knowledge of Hg concentration levels,pools and spatio-temporal distribution in cryospheric environments(e.g.,glacier,permafrost),and its transfer and potential cycle in the TP cryospheric region.Transboundary transport of anthropogenic Hg from the surrounding heavily-polluted regions,such as South and Southeast Asia,provides significant sources of atmospheric Hg depositions onto the TP cryosphere.We concluded that the melting of the cryosphere on the TP represents an increasing source of Hg and brings a risk to the TP environment.In addition,global warming acts as an important catalyst accelerating the release of legacy Hg from the melting cryosphere,adversely impacting ecosystems and biological health.Furthermore,we emphasize on the remaining gaps and proposed issues needed to be addressed in future work,including enhancing our knowledge on some key release pathways and the related environmental effects of Hg in the cryospheric region,integrated observation and consideration of Hg distribution,migration and cycle processes at a key region,and uses of Hg isotopic technical and Hg models to improve the understanding of Hg cycling in the TP cryospheric region. | ShiWei Sun ShiChang Kang QiangGong Zhang JunMing Guo XueJun Sun | 2022 | Research in Cold and Arid Regions2022，14，1： | 1 |
| 10 | Emission of N2O from a full-scale sequencing batch reactor wastewater treatment plant: Characteristics and influencing factors 显示文摘 | Shichang Sun Xiang Cheng Dezhi Sun | 2013 | International Biodeterioration & Biodegradation2013，85，： | 1 |
| 11 | A facile preparation of hausmannite as a high-performance catalyst for toluene combustion显示文摘Mesoporous transition metal oxide catalysts are well-used in the elimination of volatile organic compounds.In this study,we developed an efficient method for the preparation of mesoporous-Mn_(3)O_(4)(mMn_(3)O_(4))without the use of templates or surfactants.In this method,KCl protects oxygen defects on the surface of fresh Mn_(3)O_(4) crystallites.m-Mn_(3)O_(4) shows higher ameliorative catalytic activity than bulk-Mn_(3)O_(4)(b-Mn_(3)O_(4)) and calcined-Mn_(3)O_(4)(c-Mn_(3)O_(4)),achieving toluene catalytic oxidation of T_(10) and T_(90)(the temperature at a conversion rate of about 10%and 90%)at 191℃and 230℃,respectively(WHSV=40,000 ml·g^(-1)·h^(-1)).Based on various characterizations,the prepared m-Mn_(3)O_(4)has large specific surface area and abundant oxygen defects,and thus can provide more surface active sites,which give it superior toluene combustion activity. | Qi Liu Gao Cheng Ming Sun Weixiong Yu Xiaohong Zeng Shichang Tang Yongfeng li Lin Yu | 2022 | Chinese Journal of Chemical Engineering2022，35，4： | 1 |
| 12 | Anti-aggregation growth and hierarchical porous carbon encapsulation enables the C@VO_(2) cathode with superior storage capability for aqueous zinc-ion batteries显示文摘Self-aggregation and sluggish transport kinetics of cathode materials would usually lead to the poor electrochemical performance for aqueous zinc-ion batteries(AZIBs).In this work,we report the construction of C@VO_(2) composite via anti-aggregation growth and hierarchical porous carbon encapsulation.Both of the morphology of composite and pore structure of carbon layer can be regulated by tuning the adding amount of glucose.When acting as cathode applied for AZIBs,the C@VO_(2)-3:3 composite can deliver a high capacity of 281 m Ah g^(-1) at 0.2 A g^(-1).Moreover,such cathode also exhibits a remarkably rate capability and cyclic stability,which can release a specific capacity of 195 m Ah g^(-1) at 5 A g^(-1) with the capacity retention of 95.4%after 1000 cycles.Besides that,the evolution including the crystal structure,valence state and transport kinetics upon cycling were also deeply investigated.In conclusion,benefited from the synergistic effect of anti-aggregation morphology and hierarchical porous carbon encapsulation,the building of such C@VO_(2) composite can be highly expected to enhance the ion accessible site,boost the transport kinetics and thus performing a superior storage performance.Such design concept can be applied for other kinds of electrode materials and accelerating the development of highperformance AZIBs. | Ming Yang Yanyi Wang Zhongwei Sun Hongwei Mi Shichang Sun Dingtao Ma Peixin Zhang | 2022 | Journal of Energy Chemistry2022，31，4： | 1 |
| 13 | Performanceprediction of hydraulic energy recovery ( HER) devicewith novel mechanics for small-scale SWRC) desalinationsystem显示文摘 | Sun Jiaxi* Wang Yue Xu Shichang | 2009 | Desalination2009，249，2： | 1 |
| 14 | Temperature and methane records over the last 2 ka in Dasuopu ice core显示文摘 | Tandong Yao L. G. Thompson Keqin Duan Baiqing Xu Ninglian Wang Jianchen Pu Lide Tian Weizhen Sun Shichang Kang Xiang Qin | 2002 | Science in China Series D: Earth Sciences2002，，12： | 1 |
| 15 | Tool maint- enance optimization for multi-station machining systems with economic consideration of quality loss and obsolescence 显示文摘 | SUN Jiwen XI Lifeng DU Shichang | 2010 | Robotics and Computer-Integrated Manufacturing2010，26，2： | 1 |
| 16 | Emission of N20 from a full-scale sequencing batch reactor wastewater treatment plant: Cha- racteristics and influencing factors 显示文摘 | Sun Shichang Cheng Xiang Sun Dezhi | 2013 | International Biodeteriora- tion & Biodegradation2013，85，： | 1 |
| 17 | Temperature and methane records over the last 2 ka in Dasuopu ice core显示文摘 | Tandong Yao L. G. Thompson Keqin Duan Baiqing Xu Ninglian Wang Jianchen Pu Lide Tian Weizhen Sun Shichang Kang Xiang Qin | 2002 | Science in China Series D: Earth Sciences2002，，12： | 1 |
| 18 | The research of anadaptive evolutional ant colony algorithm and its simulation显示文摘 | Sun Hong Zhan Shichang Jin Bailin | 2003 | Joumal of Hangzhou Teachers College: Natural Science Edition2003，2，5： | 1 |
| 19 | Temperature and methane records over the last 2 ka in Dasuopu ice core显示文摘 | Tandong Yao L. G. Thompson Keqin Duan Baiqing Xu Ninglian Wang Jianchen Pu Lide Tian Weizhen Sun Shichang Kang Xiang Qin | 2002 | Science in China Series D: Earth Sciences2002，，12： | 1 |
| 20 | In-situ hydrothermal synthesis of Bi_(6)0_(6)(0H)_(3)(N0_(3))_(3)1.5H_(2)0-BiOCI heterojunction with highly photocatalytic hydrogen evolution activity显示文摘With the increasing demand and excessive use of fossil energy,energy shortage has become a problem in today’s world[1-2].Hydrogen is a clean energy source that can reduce the dependency on traditional fossil fuels,and photocatalysis is considered as the most potential hydrogen evolution method[3-5].Bi606(0H)3(N03)3-1.5H20(BHN),an incomplete hydrolysate of Bi(N03)3-5H20,shows good performance in terms of the photocatalytic degradation due to its non-toxicity and corrosion resistance[6-7]. | Shichang SUN Yifan JIANG Wei XIAO Weiming ZHOU Liwei WANG Zhanhui YUAN | 2021 | Frontiers of Materials Science2021，15，2： | 0 |
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