Full-Text Search:
Home|Journal Papers|About CNKI|User Service|FAQ|Contact Us|中文
《Geochimica》 1989-04
Add to Favorite Get Latest Update

LATE PLEISTOCENE FLUVO-LACUSTRINE DEPOSITS AND AEOLIAN LOESS IN NORTH CHINA

Zheng Honghan(Institute of Geochemistry, Academia  
The Late Pleistocene deposits of North China are best developed in the middle reaches of the Yellow River. Two sedimentary units are distinguished, which consist of aeolian loess and fluvo-lacustrine sands and gravels, respectively. Chronology, polynology, and analysis of sedimentary facies show that the Late Pleistocene fluvo-lacustrine deposits can be subdivided into different stages. The stratigraphic level containing Salawusu fauna may be compared with stage 6 with respect to δ18O and the deposits developed in other locations with Weichse-lian glaciation. The bottom boundary of Malan loess or the development of the first paleosol is chronologically different from place to place. The Late Pleistocene aeolian loess and flu-vo-lacustrine strata are synchronous deposits with different sedimentary facies and deposited in different morphologic units.
【Fund】: 中国科学院科学基金
Download(CAJ format) Download(PDF format)
CAJViewer7.0 supports all the CNKI file formats; AdobeReader only supports the PDF format.
【References】
Chinese Journal Full-text Database 10 Hits
1 JIN He-ling~1,2, LI Ming-qi~1, SU Zhi-zhu~3, DONG Guang-rong~1, ZHAO Hui~1(1.Cold and Arid Regions Environmental and Engineering Research Institute,Chinese Academy of Sciences,Lanzhou Gansu 730000,China;2.School of Resources and Environment,Lanzhou University,Lanzhou Gansu 730000,China;3.Center for Desertification Control,Chinese Academy of Forestry Sciences,Beijing 100091,China);Geochemical Features of a Profile in Salawusu River Valley and Their Response to Global Climate Changes since 220 ka BP[J];Journal of Glaciology and Geocryology;2005-06
2 Su Zhizhu 1 and Dong Guangrong 21 (Institute of Loess Plateau Geography,Shanxi University,Taiyuan 030006) 2 (Institute of Desert Research,Academia Sinica,Lanzhou 730000);Re determination on the Sedimentary Age of Salawusu Formation[J];Acta Sedimentologica Sinica;1997-04
3 LI You li 1) , HU Xiao meng 1) , YANG Jing chu 1) , and MA Zhi zheng 2) ( 1) MOE Laboratory for Earth Surface Processes and Department of Geography, Peking University, Beijing, 100871; 2) Shanxi Normal College, Linfen, 041004);A STUDY OF THE AGE OF THE DINGCUN FORMATION USING LOESS-PALEOSOL SEQUENCE ANALYSIS[J];Journal of Stratigraphy;2001-02
4 LUO Kai-Li, LI Bao-Sheng, ZHU Yi-Zhi,JIN He-Ling, ZHANG David Dian, YAN Man-Cun, LI Hou-Xin, YAO Chun-Xia, ZHANG Yu-Hong(1. Department of Geography, South China Normal University, Guangzhou, Guangdong 510631; 2. State KeyLaboratory of Loess and Quaternary Geology, Institute of Earth Environment, the Chinese Academy of Sciences,Xi'an, Shaanxi 710061; 3. Cold and Arid Regions Environmental and Engineering Research Institute,the Chinese Academy of Sciences, Lanzhou, Gansu 730000; 4. Department of Geography and Geology,Hongkong University, Hongkong; 5. Department of Hydraulic Engineering, Tsinghua University, Beijing 100084 );Calcium Carbonate Cycles in Salawusu River Valley since 150 ka B.P.[J];Scientia Geographica Sinica;2002-06
5 Su Zhizhu(Institute of Loess Plateau Geography, Shanxi University, Taiyuan 030006)Dong Guangrong(Institute of Desert Research, Academia Sinica, Lanzhou 730000);RECENT PROGRESS IN THE STUDY ON SALAWUSU STRATA IN NORTH CHINA[J];SCIENTIA GELGRAPHICA SINICA;1996-03
6 ZHANG Yu hong 1,2 , LI Bao sheng 1,2 , JIN He ling 3, David Dian Zhang 4, YAN Man cun 5, ZHU Yi zhi 2,LI Hou xin 1, YAO Chun xia 1,LUO Kai li 1 (1 Department of Geography, South China Normal University, Guangzhou 510631, China;;Grain-Size Cycles in Salawusu River Valley since 150 ka BP[J];Acta Geographica Sinica;2001-03
7 OU Xianjiao1,LI Baosheng1,2,JIN Heling3,WU Zheng1,WEN Xiaohao1, DONG Guangrong3,ZENG Lanhua1,OUYANG Chuntao1,YANG Yi1,LIU Yufei1 (1.School of Geography,South China Normal University,Guangzhou 510631,China; 2.State Key Laboratory of Loess and Quaternary Geology,Institute of Earth Environment,CAS,Xi'an 710061,China; 3.Cold and Arid Regions Environmental and Engineering Research Institute,CAS,Lanzhou 730000,China);Sedimentary Characteristics of Paleo-eolian Dune Sands in Salawusu Formation of the Salawusu River Valley[J];Acta Geographica Sinica;2006-09
8 OUYANG Chuntao1,LI Baosheng1,2,OU Xianjiao1,WEN Xiaohao1,ZENG Lanhua1,YANG Yi1,LIU Yufei1 (1. School of Geography,South China Normal University,Guangzhou 510631,China; 2. State Key Laboratory of Loess and Quaternary Geology,Institute of Earth Environment,CAS,Xi'an 710061,China);Chemical Weathering of the Milanggouwan Paleosols in the Salawusu River Valley and Their Paleoclimatic Implication during the Last Interglacial Period[J];Acta Geographica Sinica;2007-05
9 HU Xiao-meng 1, YANG Jing-chun 2 (1 The Urban and Tourism Department, Shanghai Teaching University, Shanghai 200234, China; 2 The Urban and Environmental Department, Peking University, Beijing 100871, China);Analysis on the age of Dingcun Formation according to the evolution history of Linfen Basin[J];Geographical Research;2001-05
10 LI Hou xin1,2, LI Bao sheng1,2, ZHU Yi zhi2, JIN He ling3, David DianZHANG4, YAN Man cun5, ZHANG Yu hong1, LUO Kai li1 , YAO Chun xia1(1. Department of Geography, South China Normal University, Guangzhou 510631, China; 2. State Key Laboratory of L;The change cycles of major element in Salawusu River valley since 150 ka B.P.[J];Geochimica;2002-05
【Citations】
Chinese Journal Full-text Database 7 Hits
1 Zheng Honghan;HOLOCENE LOESS IN THE MIDDLE HUANGHE VALLEY[J];Geochimica;1984-03
2 Lu Liangcai(Institute of Geochemistry, Academia Sinica).Li Huhou(Institute of Archaeology, the Chinese Academy of Social Sciences);TL DATING OF MALAN LOESS IN GANSU PROVINCE[J];Geochimica;1984-04
3 Yuan Baoyin;SEDIMENTARY ENVIRONMENT AND STRATIGRAPHICAL SUBDIVISION OF SJARA OSSO-GOL FORMATION[J];Chinese Journal of Geology;1978-03
4 Цзя Лань-по,Гай Пый и Ли Янь-СЯНЬ (Инстцтут палеонтоло■цц позвоночных ц палеоантроло■цц АН Кцтая);НОВЫЕ НАХОДКИ С ПАЛЕОЛИТИЧЕСКОЙ СТОЯНКИ ШУЙДУНГОУ[J];;1964-01
5 TING MENG-LIN KAO FU-TSING AN TSE-SEN (Institute of Geology,Academia Sinica)CHU XUAN-TSINC LI CHIA-LIN (Institute of Geography of North-China,Academia Sinica);LATE PLEISTOCENE MAMMALIAN FOSSILS OF KINGYANG,KANSU[J];;1965-01
6 Qi Guoqin (Institute of Vertebrate Paleontology and Paleoanthropology,Academia Sinica);QUATERNARY MAMMALIAN FOSSILS FROM SALAWUSU RIVER DISTRICT,NEI MONGOL[J];;1975-04
7 You Yuzhu and Xu Qinqi (Institute of Vertebrate Palaeontology and Paleoanthropology Academia Sinica);THE LATE PLEISTOCENE MAMMALIAN FAUNAS OF NORTHERN CHINA AND CORRELATION WITH DEEP-SEA SEDIMENTS[J];;1981-01
【Co-citations】
Chinese Journal Full-text Database 10 Hits
1 ZHU Yan-peng,LI Shi-ning(School of Civil Engineering,Lanzhou University of Technology,Lanzhou 730050,China);Method of calculating bearing capacity of composite foundation considering the expansive of quicklime pile[J];Sichuan Building Science;2006-02
2 Yan Yongding ( Second H ydrogcological Team of the Geological Bureau of Shanxi Province );INVOLUTION IN SALAWUSU SERIES[J];Journal of Glaciology and Geocryology;1982-03
3 JIN He-ling~1,2, LI Ming-qi~1, SU Zhi-zhu~3, DONG Guang-rong~1, ZHAO Hui~1(1.Cold and Arid Regions Environmental and Engineering Research Institute,Chinese Academy of Sciences,Lanzhou Gansu 730000,China;2.School of Resources and Environment,Lanzhou University,Lanzhou Gansu 730000,China;3.Center for Desertification Control,Chinese Academy of Forestry Sciences,Beijing 100091,China);Geochemical Features of a Profile in Salawusu River Valley and Their Response to Global Climate Changes since 220 ka BP[J];Journal of Glaciology and Geocryology;2005-06
4 Yuan Baoyin (Institute of Geology, Academia Sinica);Geological Significance of the Climatic Geomorphies of Late Pleistocene in North China[J];Acta Scicentiarum Naturalum Universitis Pekinesis;1988-02
5 Xiang Shiqing Sun Xiangyang(Forest Resource College);The Study of Dark Brown Soil of Guandi Mountain in Shanxi Province[J];Journal of Beijing Forestry University;1989-01
6 Geng Yuqing Sun Xiangyang(College of Forest Resources and Environment,Beijing For.Univ.,100083,P.R.China);Soil Taxonomy Research of Wofosi Are in Beijing[J];JOURNAL OF BEIJING FORESTRY UNIVERSITY;1998-04
7 Li Rongquan;Zhu Guorong;Zhang Benyun(Department of Resources and Environmental Sciences.Beijing Normal University, 100875,Beijing,PRC);A STUDY ON THE HAZARD OF WIND-DRIFT SAND IN THE JUNCTURE OF INNER MONGOLIA AND SHAANXI[J];JOURNAL OF BEIJING NORMAL UNIVERSITY;1995-02
8 Xie Yun (Department of Resources and Environmental Sciences, Beijing Normal University, 100875 ,Beijing, PRC);ANALYSIS OF DISASTER CONDITIONS IN BORDERLAND OF SHANXI, SHAANXI AND INNER-MONGOLIA PROVINCES[J];JOURNAL OF BEIJING NORMAL UNIVERSITY;1996-02
9 Xu Yaoxian(Geological Institute for Chemical Minerals, Ministry of Chemciai Industry, Zhuozou City, Hebei);AEOLIAN CLASTICS MIXED INTO THE SALT-BEARING SEQUENCES, CHAERHAN SALT LAKE[J];;1990-04
10 Gong Chi Zhang Liren (Nanjing Institute of Geography, Academia Sinica);THE GRAIN-SIZE FEATURES OF SEDIMENTS OF FUXIAN LAKE[J];Acta Sedimentologica Sinica;1983-01
China Proceedings of conference Full-text Database 3 Hits
1 Min Longrui (Institute of Geology,CAGS);THE TECTONIC MOVEMENT OF QUATERNARY IN LOESS PLATEAU OF CHINA[A];[C];1984
2 FU Renyi~(1,2) 1 Liaoning Provincial Institute of Archaeology,Shenyang 110003,Liaoning; 2 Institute of Paleontology,Shenyang Normal University,Shenyang 110003,Liaoning;PRELIMINARY REPORT ON 2007'S EXCAVATION AT THE MASHANDONG CAVE IN CHAOYANG,LIAONING PROVINCE,CHINA[A];[C];2008
3 Ding Zhongli Yang Shiling Sun Jimin (Institute ofGeology,Chinese Academy of Sciences,Beijing,100029);ATMOSPHERIC CIRCULATION RECONSTRUCTION IN THE NORTHERN CHINA ABOUT 2.6 MA:EVIDENCE OF GRAIN SIZE FROM LOESS-RED CLAY SEQUENCE[A];[C];1998
【Co-references】
Chinese Journal Full-text Database 10 Hits
1 SHIZheng tao 1, 2 , ZHANGShi qiang 1,ZHOUShang zhe 1,LIJi jun 1 (1.Resources and Enviroment College of Lanzhou University, LanzhouGansu 730000, China; 2. Cold and Arid Regions Environmental and Engineering Research Institute,CAS,LanzhouGan;Study of ESR Dating of Quaternary Moraine, QilianMountains[J];Journal of Glaciolgy and Geocryology;2000-04
2 WU Guang\|jian~ 1, 2,\ PAN Bao\|tian~ 2,\ GUAN Qing\|yu~ 2,\ GAO Hong\|shan~ 2 (1.Key Laboratory of Ice Core and Cold Regions Environment, CAREERI, CAS, Lanzhou Gansu 730000, China; 2.Department of Geography, National Laboratory of Western China;The Maximum Glaciation and Desert Expansion in China during MIS16[J];Journal of Glaciolgy and Geocryology;2002-05
3 WANG You\|qing, YAO Tan\|dong (Key Laboratory of Ice Core and Cold Region Environment, CAREERI, CAS, Lanzhou Gansu 730000, China);Progresses in the Studies of Abrupt Climatic Change Events Recorded in Ice Cores During the Last Glacial-Interglacial Cycle[J];Journal of Glaciolgy and Geocryology;2002-05
4 CUI Zhi jiu 1, 2 , ZHAO Liang 1, Vandenberghe J 3, ZHANG Wei 1 (1. Department of Urban & Environmental Sciences, Peking University, Beijing 100871, China; 2. State Key Laboratory of Loess and Quaternary Geology, Chinese Academy of Sciences, Xi'an Shaanxi 710054, China; 3. Faculty of Earth Sciences, Vrije Universiteit, De Boelelaan 1085, 1081 HV, Amsterdam, Netherlands);Discovery of Ice Wedge and Sand-wedge Networks in Inner Mongolia and Shanxi Province and Their Environmental Significance[J];Journal of Glaciolgy and Geocryology;2002-06
5 JIN He-ling~1,2, LI Ming-qi~1, SU Zhi-zhu~3, DONG Guang-rong~1, ZHAO Hui~1(1.Cold and Arid Regions Environmental and Engineering Research Institute,Chinese Academy of Sciences,Lanzhou Gansu 730000,China;2.School of Resources and Environment,Lanzhou University,Lanzhou Gansu 730000,China;3.Center for Desertification Control,Chinese Academy of Forestry Sciences,Beijing 100091,China);Geochemical Features of a Profile in Salawusu River Valley and Their Response to Global Climate Changes since 220 ka BP[J];Journal of Glaciology and Geocryology;2005-06
6 Shen Yongping and Xu Daoming(Lanzhou Institute of Glaciology and Geocryology, Academia Sinica);Fluctuations of Lakes and Their Environments Since Last Glaciation in Amdo Area, Tibet[J];JOURNAL OF GLACIOLGY AND GEOCRYOLOGY;1994-02
7 Yuan Baoyin (Institute of Geology, Academia Sinica);Geological Significance of the Climatic Geomorphies of Late Pleistocene in North China[J];Acta Scicentiarum Naturalum Universitis Pekinesis;1988-02
8 TAN Lihua YANG Jingchun DUAN Fengjun (Department of Geography,Peking University,Beijing,100871) ;Stages of Cenozoic Tectonic Movement in Hexi Corridor,Gansu Province[J];ACTA SCICENTIARUM NATURALUM UNIVERSITIS PEKINESIS;1998-04
9 Ding Guodong; Zhao Tingning; Fan Jianyou; Du Hua. School of Soil and Water Conservation, Beijing For. Univ., 10008 3, P. R. China.;Analysis on development of desertification assessment indicator system[J];Journal of Beijing Forestry University;2004-01
10 Fang Xiuqi (Department of Geography);PRECIPITATION CHANGE AND DESERTIFICATION IN THE REGION OF NORTHERN SHAANXI AND ORDOS[J];Journal of Beijing Normal University(Natural Science);1987-01
China Proceedings of conference Full-text Database 1 Hits
1 Li Yuanfan Zhang Qingsong and Li BingyuanInstitute of Geography ,Chinese Academy of Sciences,Beijing 100101;OSTRACOD FAUNA AND ENVIRONMENTAL CHANGES SINCE LATE PLEISTOCENE IN THE WESTERN QINGHAI-XIZANG PLATEAU[A];[C];1994
【Secondary References】
Chinese Journal Full-text Database 10 Hits
1 JIN He-ling~1,2, LI Ming-qi~1, SU Zhi-zhu~3, DONG Guang-rong~1, ZHAO Hui~1(1.Cold and Arid Regions Environmental and Engineering Research Institute,Chinese Academy of Sciences,Lanzhou Gansu 730000,China;2.School of Resources and Environment,Lanzhou University,Lanzhou Gansu 730000,China;3.Center for Desertification Control,Chinese Academy of Forestry Sciences,Beijing 100091,China);Geochemical Features of a Profile in Salawusu River Valley and Their Response to Global Climate Changes since 220 ka BP[J];Journal of Glaciology and Geocryology;2005-06
2 SHANGGUAN Dong-hui1,LIU Shi-yin1,2,DING Lian-fu1,ZHANG Shi-qiang1,LI Gang1,ZHANG Yong1,LI Jing1(1.State Key Laboratory of Gryospheric Science,CAREERI,CAS,Lanzhou Gansu 730000,China;2.Institute for Tibetan Plateau Research,Chinese Academy of Sciences,Beijing 100085,China);Variation of Glaciers in the Western Nyainqêntanglha Range of Tibetan Plateau during 1970-2000[J];Journal of Glaciology and Geocryology;2008-02
3 LI Zhi-pei1,2,YUE Le-ping1,XUE Xiang-xu1,YANG Li-rong1,WANG Min2,NIE Hao-gang2,WANG Fei-yue3,SUN Hu41.Xi'an Institute of Geological and Mineral Resources,Xi'an 710054,China2.State Key Laboratory of Continental Dynamics,Northwest University,Xi'an 710069,China3.Aerial Photogrammetry and Remote Sensing Reconnaissance Institute,Meihang(Group) Industry Development Limited,Xi'an 710054,China4.College of Tourism and Environmental Science,Shaanxi Normal University,Xi'an 710062,China;Grain-size Distribution Characteristics of Different Geo-Genetic Type Sediments and Land Desertification in Mo Us Desert[J];Journal of Jilin University(Earth Science Edition);2007-03
4 YUE Le-ping~ 1,2 YANG Li-rong~1 LI Zhi-pei~3 WANG Min~3 ZHANG Wei-ji~3 NIE Hao-gang~3 1 (Key Laboratory for Continental Dynamics of the Ministry of Education, Geology Department, Northwest University,Xi'an 710069) 2 (State Key Laboratory of Loess and Quaternary Geology,Institute of Earth Environment,Chinese Academy of Sciences,Xi'an 710075) 3 (Xi'an Institute of Geology and Mineral Resources, Xi'an 710054);Grain-size Distribution of the Sediments of Dry Lake-bed in the Northwest of China and Sand-dust Weather in East Asia[J];Acta Sedimentologica Sinica;2004-02
5 LI Bao sheng 1,2 JIN He ling 3 ZHU Yi zhi 2 DONG Guang rong 3 WEN Xiao hao 1 1 (Department of Geography, South China Normal University, Guangzhou 510631) 2 (State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, Chinese Academy of Sciences, Xi'an 710054) 3 (Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou 730000);The Quaternary Lithostrata in Salawusu River Valley and Their Geochronology[J];Acta Sedimentologica Sinica;2004-04
6 LI Ming-qi1 JIN He-ling 1,2 ZHANG Hong1 SU Zhi-zhu3 SUN Zhong 1 1( Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou 730000) 2( School of Resources and Environment, Lanzhou University, Lanzhou 730000)3 (Institute of Loess Plateau Research, Shanxi University , Taiyuan 030006);Climate Change Revealed by Magnetic Susceptibility and Organic Matter during the Holocene in Hunshandak Desert[J];Acta Sedimentologica Sinica;2005-04
7 LI Zhi-pei~ 1,2 YUE Le-ping~ 1 XUE Xiang-xu~ 1 WANG Min~2 YANG Li-rong~1 NIE Hao-gang~ 2 CHEN Chao (1.State Key Laboratory of Continental Dynamics, Department of Geology, Northwest University, Xi′an 710069; 2.Xi′an Institute of Geological and Mineral Resources, Xi′an 710054);Grain Size Distribution Characteristics of Different Geo-genetic Types of Sandy Desertification and Their Geological Significance in Southeast Mo Us Desert[J];Acta Sedimentologica Sinica;2006-02
8 GUAN Qing-yu1 PAN Bao-tian1 WU Guang-jian2 GAO Hong-shan1 LI Qiong1 SU Huai1(1.National Laboratory of Western China's Environmental Systems,Lanzhou University,Lanzhou 730000;2.Laboratory of Environment and Process on Tibetan Plateau,Institute of Tibetan Plateau Research,Chinese Academy of Sciences,Beijing 100085);East Asian Monsoon Pattern and Cause of Rapid Climate Fluctuations During the Last Glacial[J];Acta Sedimentologica Sinica;2007-03
9 YANG Yong1 LI Chang-an2 HU Si-hui3 HUO Ju1SUN Hao1 WANG Qiu-liang2(1.China University of Geosciences,Graduate School Wuhan 430074; 2.China University of Geosciences,Faculty of Earth Sciences Wuhan 430074;3.College of Liberal Arts Xinyang Normal University,Xinyang Henan 464000);Grain Size Features and Genesis of the Qingshan "Sand-dune" in Wuhan[J];Acta Sedimentologica Sinica;2008-03
10 Su Zhizhu 1 and Dong Guangrong 21 (Institute of Loess Plateau Geography,Shanxi University,Taiyuan 030006) 2 (Institute of Desert Research,Academia Sinica,Lanzhou 730000);Re determination on the Sedimentary Age of Salawusu Formation[J];Acta Sedimentologica Sinica;1997-04
【Secondary Citations】
Chinese Journal Full-text Database 9 Hits
1 Wen Qizhong Zheng Honghan Han Jiamao Wang Junda Lin Shaomong Qiao Yulou Wei Lanying Diao Guiyi (Institute of Geochemistry,Academia Sinica);LOESS OF LONGXI BASIN IN GANSU PROVINCE[J];Scientia Geographica Sinica;1982-03
2 Li Huhou(Institute of Archaeology, Chinese Academy of Social Sciences);THERMOLUMINESCENCE AGE OF LOESS[J];Geochimica;1982-01
3 Лю Дун-шэн;Чжан Цзун-ху;ХУАНТУ(ЛЕССЫ)КИТАЯ[J];Acta Geological Sinica;1962-01
4 Lin Ching-hsing (Chinese Academy of Geological Sciences);PRELIMINARY NOTES ON QUATERNARY TRANSGRESSIONS AND REGRESSIONS IN N. CHINA PLAIN[J];Acta Geological Sinica;1977-02
5 PEI WEN-CHUNG LI YIU-HENG (Institute of Vertebrate Paleontology and Paleoanthropology,Academia Sinica);SOME TENTATIVE OPINIONS ON THE PROBLEM OF“SJARA-OSSO-GOL SERIES”[J];;1964-02
6 Qi Guoqin (Institute of Vertebrate Paleontology and Paleoanthropology,Academia Sinica);QUATERNARY MAMMALIAN FOSSILS FROM SALAWUSU RIVER DISTRICT,NEI MONGOL[J];;1975-04
7 Minchen Chow (Institute of Vertebrate Paleontology and Paleoanthropology,Academia Sinica);VERTEBRATE PALEONTOLOGY IN CHINA(1949—1979)[J];;1979-04
8 Chia Lan-po Wei Qi and Li Chao-rong (Institute of Vertebrate Paleontology and Paleoanthropology,Academia Sinica);REPORT ON THE EXCAVATION OF HSUCHIAYAO MAN SITE IN 1976[J];;1979-04
9 Li Huhou;A Primary Study on Dating of Dunes by Using the Characteristics of Thermoluminescence in Quartz[J];Journal of Desert Research;1983-03
©2006 Tsinghua Tongfang Knowledge Network Technology Co., Ltd.(Beijing)(TTKN) All rights reserved