The 9th National Member Congress and the 16th Academic Annual Meeting of the Chinese Society for Mineralogy, Petrology and Geochemistry，18-21April,2017.Xi’an     

《中国矿物岩石地球化学学会第九次全国会员代表大会暨第  届学术年会》论文摘要集 《《地质学报》英文版》2017,91(Z1)

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Release of mercury from intertidal sediment to atmosphere in summer and winter     

LIU Ruhai Under the auspices of National Natural Science Foundation of China 《中国地理科学(英文版)》2010,20(2):99-105

The release of mercury from intertidal sediment to atmosphere was studied based on the simulated experiment. The experiment samples were collected from the Haibo Estuary (S1) and the Licun Estuary (S2) of the Jiaozhou Bay in China,which are seriously polluted with mercury. The results show that the mercury in sediment releases rapidly to atmosphere under solar radiation. After 8 hours of solar radiation,mercury concentrations decrease from 5.62 μg/g and 2.92 μg/g to 2.34 μg/g and 1.39 μg/g in S1 and S2 sediments respectively in summer,and decrease from 5.62 μg/g and 2.92 μg/g to 4.58 μg/g and 2.13 μg/g respectively in winter. The mercury species in the sediment change markedly under solar radiation. The concentrations of mercury bound to organic matter decrease significantly from 2.73 μg/g to 0.31 μg/g in S1 and from 2.07 μg/g to 0.31 μg/g in S2,and the released mercury mainly comes from mercury bound to organic matter. Mercury flux shows distinguishing characteristic of diurnal change,and it increases rapidly in the morning with the rising of solar radiation intensity,but decreases in the afternoon. The mercury flux increases with sediment temperature and solar radiation intensity. The rapid release of mercury in intertidal sediment plays an important role in the regional mercury cycle.  相似文献   

New Aspects of Extragalactic Globular Clusters     

Myung Gyoon Lee 《天文研究与技术》1999,(Z1)

1　ＩｎｔｒｏｄｕｃｔｉｏｎＧｌｏｂｕｌａｒｃｌｕｓｔｅｒｓａｒｅｃｏｎｓｉｄｅｒｅｄｔｏｂｅｔｈｅｏｌｄｅｓｔｓｔｅｌｌａｒｓｙｓｔｅｍｓｉｎｇａｌａｘｉｅｓｓｏｔｈａｔｔｈｅｙｋｅｅｐａｆｏｓｓｉｌｒｅｃｏｒｄｏｆｅａｒｌｙｈｉｓｔｏｒｙｏｆｇａｌａｘｉｅｓ .Ｔｈｅｙａｒｅｓｏｂｒｉｇｈｔｔｈａｔｔｈｅｙｃａｎｂｅｏｂｓｅｒｖｅｄｅｖｅｎｉｎｄｉｓ ｔａｎｔｇａｌａｘｉｅｓ,ａｎｄｔｈｅｙａｒｅａｂｕｎｄａｎｔｉｎｇａｌａｘｉｅｓ,ｅｓｐｅｃｉａｌｌｙｉｎｇｉａｎｔｇａｌａｘｉｅｓｗｈｉｃｈｈａ…  相似文献   

巴伦支海-喀拉海油气区的地质演化-俄罗斯自然资源部全俄地质研究所、挪威地质研究所，挪威石油管理局，挪威海德罗石油公司共同参与的综合研究项目     

Oleg  V.  Petrov  Morten  Smelror  Jorg  Ebbing  Laurent  Gemigo  Tatyana  Koren  Geir  Birger  Larssen  Tamara  Litvinova  Eugeny  O.  Petrov  Hans  -  Ivar  Sjulstad  Nikolai  Sobolev  Viktor  Vasiliev  Stephanie  G.Wemer  吴峧歧 《海洋地质》2008,24(3)

GeoBase项目的主要目标是创建巴伦支海和喀拉海油气区的构造地层和古地理模式。该项目应用了俄罗斯和挪威已有的地质、地球物理数据和各学科的综合解释成果,包括潜在油气区的资料、布置适当的地震测线,再用深、浅钻孔资料和周围的露头做校正,等等。本次研究建立了巴伦支海、北伯朝拉地区和喀拉海大地构造、地质结构和古地理格架。这项综合性研究至关重要,是了解油气源岩和潜在储层空间分布的科学方法,又是鉴别巴伦支海油气成藏的基础。  相似文献   

安大略州格林維尔区西港整合深成岩体的构造     

H.  R.  外尼-爱德华 《地质力学学报》1994,(1):275-282

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EXPERIMENTAL DESIGN IN CHEMOMETRICS     

STANLEY N.DEMING JOHN A.PALASOTA JOSEPHINE M.PALASOTA Department of Chemistry University of Houston  Calhoun Ro  Houston  TX -  U.S.A. 《地理学报(英文版)》1991,(3)

Chemometrics is defined as the application of mathematical and statistical methods to chemical systems.Systems theory is seen to be useful for organizing and categorizing the inputs to and outputs fromchemical systems.Advances in measurement science in the 1950s and 1960s,particularly in analyticalchemistry,created a need for a multivariate approach to data analysis.Early chemometrics emphasizedthe use of structure-finding methods for existing data sets.In many instances,data sets can be obtainedfrom designed experiments.Such data sets are more likely to contain the desired information and the datacan usually be acquired at less cost.Renewed interest in statistical process control will provide many new,more robust data sets in the future.  相似文献   

征订启事     

本刊年征订工作业已开始。本刊委托天津市全国非邮发报刊《联订服务部》办理订阅事宜。定价每册.元  全年订价.元。凡需订阅者请将订刊款通过邮局或银行汇款至下列地址即可：　　邮政编码：　　地址：天津市大寺泉集北里别墅号户头全称：天津市河西区联合征订服务部帐 号：-　　开户银行：工商行天津市尖山分理处电 话： 《天文学进展》2000,18(3):191

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RS AND GIS-BASED FOREST FIRE RISK ZONE MAPPING IN DA HINGGAN MOUNTAINS     

YIN Hai-wei  KONG Fan-hua    LI Xiu-zhen 《中国地理科学(英文版)》2004,14(3):251-257

1INTRODUCTIONForests are one of the major natural resources that per-form important environmental and recreational func-tions (COSTANZA and GROOT, 1997). It is well known that forests can absorb atmospheric carbon, maintain a certain degree of humidity in atmosphere, regulate rainfall, moderate temperature, and restrain soil erosion, etc. (AURELIA, 2003). So, the health of a forest in any given area is a very important indicator of the ecological conditions. But fire is the great…  相似文献   

公众气象服务满意度问卷调查分析   总被引：1，自引：0，他引：1  

韩琳  王鸽  林文桦  张明益 《成都信息工程学院学报》2011,(6):707-710

针对天气预报服务中的不足之处,通过对四川省气象服务满意度的调查评估,为今后提高气象信息在社会、经济等领域的应用提供参考。根据CSIWS测量模型,从受众对气象服务的评价、对气象信息的了解、对气象信息的理解、对气象服务的要求4方面进行调查。有效问卷结果分析表明：（1）公众对四川省“气象部门公众形象”的评价最高,满意度指数达到90．60％;（2）公众对“天气预报准确率”期望值最高,为4．13分;而满意度为3．30分,两者差距0．83分,说明表现尚达不到社会公众的期望值,今后在提高天气预报准确率方面仍需下大力气;（3）评价满意度指数平均值为85．60％,社会公众对气象部门公众形象评价比较高,其余指标的满意度指数都有待进一步提高,但提高的迫切程度各有差异。  相似文献   

The Effect of Tide on the Global Climate Change   总被引：1，自引：0，他引：1  

YANG Xuexiang  CHEN Zhen  CHEN Dianyou 《东北亚地学研究》2002,(1)

The differential rotation between the solid and fluid spheres caused by tidal force could explain the 1500 to 1800 - year cycle of the worlds temperature. Strong tide increases the vertical and horizontal mixing of water in the oceans,dra-wing the cold Pacific water from the depths to the surface and the warm water from the west to the east, where it cools or warms the atmosphere above, absorbs or releases CO2 to decrease or increase greenhouse effect and to make La Nina or El Nino occur in the global. The moons declination and obliquity of the ecliptic affect the tidal intensity. The exchange of tidal energy and tide -generating force caused by the sun, moon and major planets makes the earths layers rotate in different speeds. The differenti-al rotation between solid and fluid of the earth is the basic reason for El Nino and global climate change.  相似文献