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Acta Geologica Sinica(English Edition) 2000年第2期74卷 301-305页

作者： wang shilu WAN Guojiang State Key Laboratory of Environmental Geochemistry Institute of GeochemistryCASGuiyang 550002

The comparison between the carbon isotope and the index of ring width of a pine disc from the Tuomuer Peak region in Xinjiang shows that the effects of climate changes on the tree-ring growth and carbon isotopic fractionation varies with time. The reason is probably relative to the characters of climate changes and adaptability of the tree-ring growth to climate changes. The relationships between the atmospheric CO2 level and the revised δ13Cair by the tree-ring carbon isotope indicate that the carbon cycle is not in a steady state, but under a stage-change condition in this area. It also can be concluded that the ratio of CO2 from the terrestrial eco-system has increased, and the flux of CO2 exchange between the atmosphere and the biosphere was gradually increasing over the past century. In addition, the results also confirm the validity and superiority of the carbon isotope to the research of the water-use efficiency.

关键词： tree ring carbon isotope CO_(2) exchange water-use efficiency

Atmospheric pollutants transport tracks revealed from ^(131)I, ^(137)Cs, and ^(134)Cs leaked from Fukushima accident and ~7Be and ^(210)Pb observed at Guiyang of China

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Chinese Journal Of Geochemistry 2014年第3期33卷 248-255页

作者： WAN Enyuan ZHENG Xiangdong wang shilu WAN Guojiang wang Changsheng State Key Laboratory of Environmental Geochemistry Institute of Geochemistry Chinese Academy of Sciences Key Laboratory of Atmospheric Chemistry of China Meteorological Administration Chinese Academy of Meteorological Sciences

A massive earthquake measuring 9.0 on the Richter scale that occurred on March 11, 2011, on Honshu Island, Japan, caused radioactivity leakage from the Fukushima Nuclear Power Plant, which led to the leakage of artificial nuclides(131I, 137 Cs, and 134Cs) and their global transportation by atmospheric circulation. This paper reports a systematic comparative observation on radioactive concentrations of natural nuclides(7Be and 210Pb) and artificial nuclides(131I, 137 Cs, and 134Cs) at the surface level, measured in weekly continuous aerosol sampling at Mount Guanfeng, Guiyang, China, from March 17, 2011 to April 28, 2011. During this period, the variations in the nuclide concentrations associated with their transport paths were analyzed with 315 hour back-trajectories of air mass initialized 500 m above the surface level at Guiyang. The results show that the pollutants of nuclear leakage from the Fukushima accident were transported to the Guiyang region of China via two significant pathways. In the first pathway the first wave of nuclear pollutants were transported from west to east in air masses at higher altitudes via global atmospheric circulation. The nuclear pollutants encircled the Earth almost once and after about 10 days to two weeks, between March 24 and March 31, 2011, intruded Guiyang from the northwestern region of China. In the second pathway, the nuclear pollutants from the Fukushima region arrived at Guiyang between April 7 and April 14, 2011, via air masses at lower altitudes that moved southwards because of the squeezing of the northeast Asian weather system and then by the influence, in succession, of the northeastern and southeastern air currents in the low-latitude region. The first transport pathway for atmospheric pollutants is on a global scale and based on air masses at higher altitudes, and the second transport pathway is on an eastern Asia regional scale and based on the air masses at lower altitude.

关键词：全球大气环流 137Cs 贵阳地区铅-210 污染物输送中国活度事故

Aerosol pollution in a megacity of southwest China inferred from variation characteristics of sulfate-δ^34S and water-soluble inorganic compositions in TSP

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Particuology 2019年第2期17卷 202-209页

作者： Zhou Yang Xiaodong Li shilu wang Qinkai Li Jun Huang Gaoyang Cui Department of Tourism and Geography Tongren University Tongren 554300 China Institute of Surface-Earth System Sciences Tianjin University Tianjin 300072 China State Key Laboratory of Environmental Geochemistry Institute of Geochemistry Chinese Academy of Sciences Guizhou 550081 China

Daytime and nighttime aerosol samples for total suspended particles (TSP) were collected in Chengdu from 12 to 23 January 2013 (winter) and 10 to 21 August 2014 (summer). The mass concentrations of TSP, major inorganic ions, and stable sulfur isotope ratios were determined. Clear winter-summer variatio n inT SPwas observed;the mass concentrations ofTSPin summerwere below levels defi ned by the Chinese National Ambient Air Quality Standard (GB3095-2012), whereas winter TSP levels exceeded the standard by 2-4 times. Overall, the sum of SO4^2-, NO3^-, and NH4^+ concentmtions represented the highest contribution to water-soluble ionic components, which showed similar trends to TSP mass. According to correlations among major ions, the major compounds in TSP were likely to be (NH4)2SO4, NH4NO3, CaCl2,and KCl in both sampling times, and CaSO4 and Ca(NO3)2 were also present in summer. The NO3 /SO42^- ratios ranged from 0.57 to 1.28 (average 0.85 ± 0.16) in winter and 0.5 to 0.93 (average 0.66 ±0.11) in summer, indicating stationary source ernissi ons (coal bur ning) were more im porta nt sources than the vehicle exhaust. The relationship between SO4^2- and δ^34S indicated the sulfate sources were affected by the low sulfur isotope value of biogenic sulfur release in summer, and the high sulfur isotope value of coal in winter. As a whole, the mixture of coal burning and vehicle exhaust represent the major TSP sources in Chengdu in the study period, and biogenic sulfur also contributes to TSP in summer.

关键词： Aerosol pollution Variation characteristics Sulfate-δ^34S Total suspended particle

Characteristics of U-pattern distribution of high-concentration ^(210)Pb in surface air at central Guizhou,China

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Chinese Science Bulletin 2005年第16期50卷 1750-1755页

作者： WAN Guojiang YANG Wei wang shilu WAN Enyuan WU Fengchang S.N.LEE wang Changsheng HUANG Ronggui State Key Laboratory of Environmental Geochemistry ChineseAcademy of Sciences Guiyang 550002 China Environmental Measurements Laboratory Department of Homeland Security NY 10014-4811 USA

A better understanding of the variation of 210Pb concentrations in the surface air is the key to trace lake sedimentation and catchment erosion, to establish and vali-date the global diffusion model of contaminants, and to as-sess the impact of natural radiation on the ecological system. Basing on the study progresses of the sedimentation, the at-mospheric model and the unique environmental background in the Yunnan-Guizhou Plateau, and starting from December 20, 2001, we made use of a 500 NE Type aerosol sampler to collect filter samples, once a week in the past consecutive two years, in the surface air at Mt. Guanfeng, Guiyang City, China. Synchronous detailed γ -energy spectrometric obser-vations of 210Pb concentrations at both Chinese and U.S. laboratories have shown that the average monthly 210Pb concentration displays a regular U-patterns distribution of annual variations, with high values appearing in winter and low values in late spring and summer. The average annual 210Pb concentrations are estimated to be 2.77±0.63 mBq/m3, about 4 times the average maximum concentrations reported from quite a number of monitoring stations throughout the world. The possible factors affecting the sources of 210Pb in the surface air in the central part of Guizhou Province are: Release of 222Rn from the U-Ra series enriched in the soils; chemical weathering of carbonate rocks; the exploitation, processing and utilization of coal and phosphorous resources. The principal factor controlling the high 210Pb concentrations in the surface air in the central Guizhou and their annual U-pattern distribution is the release of 222Rn. The average monthly 210Pb concentrations show a good negative power- function relationship with increasing precipitation and also show a good negative linear-function relationship with the rise of air temperature in month grouping. Group No.1 (June to November) reflects a relatively low release of 222Rn from soils in relatively high temperature seasons; Group

关键词：表面空气铅浓度 U模式分布中国贵州

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东盟内部的科技合作:成就与问题

当代亚太 2005年第2期 30-35页

作者：王士录云南省社会科学院东南亚研究所

推进东盟内部的科技合作与发展始终是东盟组织所坚持的一个基本目标 ,东盟已经为此做出了积极努力并取得了很大成绩。但是 ,由于其现行科技管理机制不完善、各成员国之间经济和科技发展水平悬殊、科技需求的不一以及决策方式上的问题 ,... 详细信息

推进东盟内部的科技合作与发展始终是东盟组织所坚持的一个基本目标 ,东盟已经为此做出了积极努力并取得了很大成绩。但是 ,由于其现行科技管理机制不完善、各成员国之间经济和科技发展水平悬殊、科技需求的不一以及决策方式上的问题 ,东盟组织在推进内部科技合作方面所起的作用是有限的。

关键词：东盟内部科技合作科技发展水平基本目标科技需求成员国成绩科技管理成就

缅甸的“果敢族”:族称、来历、状况及跨国互动

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世界民族 2005年第5期 70-77页

作者：王士录云南省社会科学院东南亚研究所研究员昆明650034

缅甸政府把聚居在中缅边境缅方一侧果敢地区的华侨、华人从族称上界定为“果敢族”。本文从历史学、民族学等学科的角度,对这个所谓的“果敢族”的来历、状况、与我国毗邻地区的跨国界互动关系以及缅甸政府将其定为“果敢族”的基本动... 详细信息

缅甸政府把聚居在中缅边境缅方一侧果敢地区的华侨、华人从族称上界定为“果敢族”。本文从历史学、民族学等学科的角度,对这个所谓的“果敢族”的来历、状况、与我国毗邻地区的跨国界互动关系以及缅甸政府将其定为“果敢族”的基本动因进行了论述。文章认为,“果敢族”的称谓从民族学上来讲是很不科学的,这些被称为“果敢族”的华侨、华人,事实上应当是缅甸华侨、华人中的“云南帮”。

关键词：缅甸政府 “果敢族” 果敢地区边境地区族称跨国界互动关系民族学

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东盟合作机制与原则改革的争论及前景

当代亚太 2007年第8期 46-51页

作者：王士录云南省社会科学院东南亚研究所

本文对东盟合作机制与原则的特点和问题进行了评介,并对1997年以来东盟内部就其合作机制与原则的改革争论进行了归纳和分析。本文认为,东盟对其合作机制与原则进行改革是必然的,但总体框架不会改变;改革将会是局部的、渐进的,是以提高... 详细信息

本文对东盟合作机制与原则的特点和问题进行了评介,并对1997年以来东盟内部就其合作机制与原则的改革争论进行了归纳和分析。本文认为,东盟对其合作机制与原则进行改革是必然的,但总体框架不会改变;改革将会是局部的、渐进的,是以提高决策力和执行力为目的的调整、充实和完善;改革将始终体现东盟作为协约而不是同盟的本质。

关键词：东盟合作机制与原则改革

大湄公河次区域经济合作的国际关系学意义解读

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当代亚太 2006年第12期 3-11页

作者：王士录云南省社会科学院东南亚研究所

以往对大湄公河次区域(GMS)经济合作的研究过多地注重了其经济意义,而忽视了其国际关系学方面的意义。事实上,冷战结束以来,GMS经济合作不但促进了GMS国家之间的经济发展和社会进步,而且促进了这些国家之间政治关系的良性互动,反过来又... 详细信息

以往对大湄公河次区域(GMS)经济合作的研究过多地注重了其经济意义,而忽视了其国际关系学方面的意义。事实上,冷战结束以来,GMS经济合作不但促进了GMS国家之间的经济发展和社会进步,而且促进了这些国家之间政治关系的良性互动,反过来又为其经济社会的发展创造了有利的外部环境。本文主要探讨GMS经济合作在冷战后GMS国家间关系的发展以及“和谐区域”建设中所起的积极作用。

关键词：大湄公河次区域经济合作国际关系学

Relationship between δ^(13)C and index of ring width

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Chinese Science Bulletin 1999年第S2期44卷 81-83页

作者： wang shilu, WAN Guojiang and AN Ning State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550002, China State Key Laboratory of Environmental Geochemistry Institute of Geochemistry Chinese Academy of Sciences Guiyang 550002 China

1 Materials and methods THE tree-ring reported here is one of pine discs sampled at 3 200 m a.s.l. in Qongtelian Valley in the Tuomu’er Peak region in 1978. The local geographical and climate condition has been introduced in detail. An index series was obtained after the width of tree-rings on 5 different radii was measured andfitted by linear and negative exponential functional regression. Each annual ring has been separated on the whole to simultaneously measure △14 C and δ13 C of treerings. Cellulose was extracted by the standard chemical method, then oxidized by copper oxide to C02.Carbon isotopic analyses were performed with a Mat-252 mass spectrometer. Results are expressed in thestandard δ notation with respect to the PDB standard with a precision of 0.1‰. 2

关键词： tree rings δ13C index of ring width correlation climate changes.

The implication of tree-rings δ^(13)C for interaction between the atmosphere and the biosphere

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Chinese Science Bulletin 1999年第S2期44卷 83-85页

1 Background THE Ci/Ca, the ratio of intercellular and ambient C02 partial pressure, is internally controlled by thestomatal conductance and assimilation rate, and is externally affected by the atmospheric CO2 concentration and climate changes. Ci/Ca can be only estimated by the isotopic fractionation equation of Farquchar. However, this method is limited by the very little observation of atmospheric δ13 C before1980. Leavitt had to interpolate the atmospheric δ13 C by means of the polynomial. A geochemicalmethod to model Ci/Ca by tree-ring δ13C has been developed to reduce the dependence. By the estimated tree-ring Ci/ Ca, the authors here discuss C02 and water exchanges between the atmosphere and biosphere that greatly influence the climate

关键词： tree-rings δ13C carbon cycle water-use efficiency.