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Science China Earth Sciences 2013年第1期56卷 81-92页

作者： li XiangYing QIN DaHe JING ZheFan li yuefang WANG Ninglian State Key Laboratory of Cryospheric Science Cold and Arid Regions Environmental and Engineering Research Institute Chinese Academy of Sciences

Diurnal minor and trace elements in glacial outflow water draining the Qiyi Glacier and associated hydrological controls as well as the filtration effects on water chemistry were examined. Results show that major ions, li, St, and Ba are exported pre- dominately as mobile monovalent or divalent ions and are controlled by hydrological variations over the diurnal cycle exhibit- ing an inverse concentration with discharge, suggesting that li, Sr, and Ba can be used as tracers in subglacial hydrological investigations. Conversely, other elements （e.g. Fe, Al, and Cr） exhibit variations that are not strongly correlated with the dis- charge reflecting the physicochemical controls. The non-filtered operation appears not to strongly influence Sr and Ba, but has an effect on some elements such as Fe, Al, V, Ti, and Co, indicating that these changed elements are transported in particulate forms and thus their concentrations are highly dependent on particulate numbers in solutions. This implies that the immediate filtration after sampling is essential in hydrochemical studies at Alpine glacial basins due to subsequent mineral dissolution.

关键词： minor and trace elements filtration stream water Qiyi Glacier Qilian Mountain

Increasing atmospheric pollution revealed by Pb record of a 7000-m ice core

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Chinese Science Bulletin 1999年第14期44卷 1309-1312页

作者： Wenmian Huo Tandong Yao yuefang li Lanzhou Inst Glaciol & Geocryol Lab Ice Core & Cold Reg Environm Lanzhou 730000 Peoples R China

Concentrations of Pb in Dasuopu ice core in the Qinghai-Tibetan Plateau have been directly measured by ICP-MS at pg/g level. The Pb profile shows a very significant increase in modern times due to anthropogenic input, The use of leaded gasoline in the South Asian countries may be a main source of Pb in this region. The input of Pb to the Dasuopu Glacier is mainly supplied by Indian summer monsoon moisture which traverses the pass at the head of the Dasuopu Glacier.

关键词： Pb pollution Dasuopu ice core.

Plant coexistence can enhance phytoextraction of cadmium by tobacco (Nicotiana tabacum L.) in contaminated soil

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Journal of Environmental Sciences 2011年第3期23卷 453-460页

作者： ling liu yuefang li Jianjun Tang liangliang Hu Xin Chen College of life Sciences Zhejiang University Hangzhou 310058 China College of Agriculture Henan University of Science and Technology Luoyang 471003 China

A mesocosm experiment was conducted to investigate whether plant coexistence affects cadmium （Cd） uptake by plant in contaminated soil. Tobacco （Nicotiana tabacum L. var. K326） and Japanese clover （Kummerowia striata （Thunb.） Schindl.） were used. Cadmium was applied as ***2O in solution at three levels （0, 1, and 3 mg/kg soil） to simulate an unpolluted soil and soils that were slightly and moderately polluted with Cd. Tobacco （crop）, Japanese clover （non-crop）, and their combination were grown under each Cd treatment. Compared to monoculture and under all Cd treatments, co-planting with Japanese clover did not affect tobacco biomass but significantly increased Cd concentration in all tobacco tissues and enhanced Cd accumulation in tobacco shoots and roots. Compared to monoculture, co-planting reduced soil pH and increased Cd bioavailability. For tobacco, co-planting with Japanese clover increased the Cd bioconcentration factor （BCF） in Cd contaminated soil. Japanese clover also accumulated substantial quantities of Cd in shoots and roots. Thus, total Cd uptake by the plants was much greater with co-planting than with monoculture. The results suggested that phytoextraction can be effectively increased through tobacco co-planting with Japanese clover in mildly Cd-contaminated soil.

关键词： plant coexistence phytoextraction cadmium tobacco Japanese clover

Main pollution sources of central Arctic revealed by lead and its isotopic ratios recorded in snow

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Chinese Science Bulletin 1998年第10期43卷 829-833页

作者： Cunde Xiao Dahe Qin yuefang li Jiawen Ren Lanzhou Univ Lanzhou Inst Glaciol & Geocryol Lanzhou 730000 Peoples R China

The spatial distribution and environmental significance of Pb and its stable isotope ratios in central Arctic snow are discussed. The shear zone is a dividing line. The concentration of Pb in the south section is higher than that of the north section, and in the shear zone it is close to that of sea salt. Anthropogenic Pb by calculation is larger than 99%. Its main sources are polluted air masses origi nation from Europe and the midpart of Russia, as well as the western North America and far east Russia. This is also conformed by 206Pb/ 207Pb.

关键词： Arctic lead isotopic ratios pollution.

Atmospheric Pb variations in Central Asia since 1955 from Muztagata ice core record, eastern Pamirs

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Chinese Science Bulletin 2006年第16期51卷 1996-2000页

作者： li Zhen YAO Tandong TIAN lide XU Baiqing li yuefang Key Laboratory of Cryosphere and Environment Chinese Academy of Sciences Lanzhou 730000 China Laboratory of Environment and Process on Tibetan Plateau Institute of Tibetan Plateau Research Chinese Academy of Sciences Beijing 100085 China

A Muztagata ice core recovered at 7010 m altitude in East Pamirs provides a Pb concentration record from 1955 to 2000. The result reveals in- creasing Pb concentrations from 1955 to 1993, with two Pb concentration peaks in 1980 and 1993. After 1993, Pb concentrations in ice core show an obvi- ously declining trend. Analysis shows that the lead in the Muztagata ice core mainly came from anthropo- genic emissions from countries in Central Asia, while the local emission had little contribution.

关键词：冰核慕士塔格山铅大气中亚帕米尔高原

Accumulation in Dasuopu ice core in Qinghai-Tibet Plateau and solar activity

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Chinese Science Bulletin 2000年第11期45卷 1038-1042页

作者： Keqin Duan Ninglian Wang yuefang li Weizheng Sun Lanzhou Inst Glaciol & Geocryol Ice Core & Cold Reg Res Lab Lanzhou 730000 Peoples R China

The time series of accumulation in recent 300 years correlated well with solar activity in Dasuopu ice core. Results of spectrum analysis on the accumulation time series of the Dasuopu ice core shows that there are some periods that coincide with the periods of solar activity. By comparing the long-time change trend of the accumulation in the Dasuopu ice core with various kinds of indexes of solar activity intensity, a negative correlation is found between the trend and solar activity.

关键词： Dasuopu ice core accumulation solar activity.

Global pollution shown by lead and cadmium contents in precipitation of polar regions and Qinghai-Tibetan Plateau

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Chinese Science Bulletin 2000年第9期45卷 847-853页

作者： Cunde Xiao Dahe Qin Tandong Yao Jiawen Ren yuefang li Chinese Acad Sci Lanzhou Inst Glaciol & Geocryol Lab Ice Core & Cold Reg Environm Lanzhou 730000 Peoples R China

The analysis of the major ions, lead and cadmium has been performed for snow-pit samples collected from the Arctic, the Qinghai-Tibetan Plateau and the Antarctic Ice Sheet. These snow pits were excavated respectively from the snowpack in Canadian Northwest Territory (NWT) and the central Arctic, three glaciers on the Qinghai-Tibetan Plateau and surface snow along the route of the International Trans-Antarctic Expedition (ITAE). The source regions for the lead pollution of central Arctic have been identified by analyzing of stable lead isotopic ratios, meteorological and atmospheric chemistry studies. It shows that the central Arctic is still under intensive lead input, despite the fact that lead content in Greenland Ice Sheet displays a rapid decreasing since the 1970s due to US and some European countries’ campaigns to reduce lead-containing gasoline-additives. This is because there are multiple lead sources for the central Arctic, including the countries that have not performed gasoline-additives

关键词： key regions of cryosphere heavy metals global pollution.

Chernobyl nuclear accident revealed from the 7010 m Muztagata ice core record

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Chinese Science Bulletin 2007年第10期52卷 1436-1439页

作者： TIAN liDe YAO TanDong WU GuangJian li Zhen XU BaiQing li yuefang Key Laboratory of Cryosphere and Environment Institute of Tibetan Plateau Research Chinese Academy of Sciences Beijing 100085 China Key Laboratory of Cryosphere and Environment Cold and Arid Regions Environment and Engineering Research Institute Chinese Academy of Sciences Lanzhou 730000 China

The total activity variation with depth from a 41.6 m Muztagata ice core drilled at 7010 m, recorded not only the 1963 radioactive layer due to the thermonuclear test, but also clearly the radioactive peak released by the Chernobyl accident in 1986. This finding indicates that the Chernobyl nuclear accident was clearly recorded in alpine glaciers in the Pamirs of west China, and the layer can be potentially used for ice core dating in other high alpine glaciers in the surrounding regions.

关键词：切尔诺贝利核事故新疆慕士塔格山冰芯记录放射性

Iron in the NEEM ice core relative to Asian loess records over the last glacial–interglacial cycle

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National Science Review 2021年第7期8卷 110-123页

作者： Cunde Xiao Zhiheng Du Mike J Handley Paul A Mayewski Junji Cao Simon Schupbach Tong Zhang Jean-Robert Petit Chuanjin li Yeongcheol Han yuefang li Jiawen Ren State Key Laboratory of Earth Surface Processes and Resource Ecology Beijing Normal University State Key Laboratory of Cryospheric Science Northwest Institute of Eco-Environment and Resources Chinese Academy of Sciences Climate Change Institute School of Earth and Climate Sciences University of Maine Key Laboratory of Aerosol Science and Technology SKLLQG Institute of Earth Environment Chinese Academy of Sciences Climate and Environmental Physics Physics Institute University of Bern 6. Institute of Tibetan Plateau and Polar Meteorology Chinese Academy of Meteorological Sciences 7. Institut des Geosciences de I'Environment (IGE) University Grenoble Alpes 8. Korea Polar Research Institute

Mineral dust can indirectly affect the climate by supplying bioavailable iron(Fe) to the ocean. Here, we present the records of dissolved Fe(DFe) and total Fe(TDFe) in North Greenland Eemian Ice Drilling(NEEM) ice core over the past 110 kyr BP. The Fe records are significantly negatively correlated with the carbon-dioxide(CO2) concentrations during cold periods. The results suggest that the changes in Fe fluxes over the past 110 kyr BP in the NEEM ice core are consistent with those in Chinese loess records because the mineral-dust distribution is controlled by the East Asian deserts. Furthermore, the variations in the dust input on a global scale are most likely driven by changes in solar radiation during the last glacial–interglacial cycle in response to Earth’s orbital cycles. In the last glacial–interglacial cycle, the DFe/TDFe ratios were higher during the warm periods(following the post-Industrial Revolution and during the Holocene and last interglacial period) than during the main cold period(i.e. the last glacial maximum(LGM)), indicating that the aeolian input of iron and the iron fertilization effect on the oceans have a non-linear relationship during different periods. Although the burning of biomass aerosols has released large amounts of DFe since the Industrial Revolution, no significant responses are observed in the DFe and TDFe variations during this period, indicating that severe anthropogenic contamination has no significant effect on the DFe(TDFe)release in the NEEM ice core.

关键词： Greenland NEEM ice core iron fertilization carbon dioxide Chinese loess glacial–interglacial cycle

Overview of Research on the Treatment of Ankylosing Spondylitis in Chinese Medicine

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Journal of Biosciences and Medicines 2023年第3期11卷 147-155页

作者： Chen Gu yuefang li Medical Institute Qinghai University Xining China Department of Acupuncture Qinghai Provincial Hospital of Traditional Chinese Medicine Xining China

Ankylosing Spondylitis (AS), also known as spondylitis, is a rheumatic disorder that develops gradually in the sacroiliac, lumbar, thoracic and cervical spine and can involve peripheral joints in severe cases. The disease is insidious, starting in the sacroiliac and hip joints and gradually involving the entire spine. AS, also known as seronegative arthritis, is primarily due to a negative response to the susceptibility sheep blood clotting test (RF). Until the 1960s, it was known as “central rheumatoid arthritis” and “rheumatoid spondylitis”. At present, modern medicine has no effective treatment for this disease, but Chinese medicine treatment for ankylosing spondylitis is based on the concept of treating both the symptoms and the underlying cause of the disease, with few side effects and significant clinical effects, and has become a research hotspot in recent years, worthy of further investigation.

关键词： Chinese Medicine Ankylosing Spondylitis