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## Impact of Freezing and Thawing on Energy Exchange Between the System and Environment

LI Shu-xun,\ NAN Zhuo-tong,\ ZHAO Lin (Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou Gansu 730000, China)
On the basis of the solution of the Neumann problem, the surface thermal exchange between environment and the systeminvolved and the temperature gradient inthe range of 0\%x\%\%ξ\% are given, where \%x\% is variable of a depth and \%ξ\% is depth of active layer. Comparedwith the problem without phase change, the freezing or thawing process increasesthe thermal exchange between environment and the system and the temperature gradient in the range of 0\%xξ\%. \ \ The classic Neumann problem in freezing and unfreezing regions are expressed in Equations (5) ～ (7). \ \ The energy equilibriumexpressions at thefreezing and thawing front and their combining expression are Equations (8) and (9). The solutions of the problem in the freezing and unfreezing regioncan be expressed as Equations (18) and (19). where \%β\% is determined by Equation (26). The thermal flow at\%x\%=0is given by Equation (23). \ \ When the system phase does not occur, however, the solution of the problem is given by Equation (11). Meanwhile, the thermal flow at\%x\%=0 is representedby Equation (14). Hence, the ratio of thermal exchange between the system and environment (γ) can be expressed as Equation (25). \ \ For demonstrating theimpact of freezing and thawing process on thermal exchange between the system and environment, parameters β and γ(the ratio of thermal exchange between the system and environment during freezing and thawing with phase change andduring temperature rising and lowering without phase change) are computed. The computation is performed with several ground soil dataduring freezing and thawing. The computationresults show thatγdecreases with system temperature rising and environmental temperature loweringwhen temperatures of the system and environment keep constant in the process of soil freezing; And that γ decreases with system temperature lowering and environmental temperature rising when temperatures of the systemand environment keep constantin the process of soil thawing,; And γincreases with moisture content rising in ground soilor with freezing and thawing speed lowering. The characteristicsof energy exchange between the system and environment during ground soil freezing and thawing process maybe influence climate′sformation and change under naturalconditions at a regional orglobalscale
【Fund】： 国家基础研究发展规划项目 (G19980 40 80 3) ;; 中国科学院寒区旱区环境与工程研究所知识创新工程项目 (CACX2 0 0 0 0 9)
【CateGory Index】： P642.14
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 【References】
 Chinese Journal Full-text Database 10 Hits
 1 HU Qing-hua,CUI Ke-rui,ZHAO Chuan,MA Wen-sheng(School of Resources and Environmental Engineering,Hefei University of Technology,Hefei,Anhui 230009.China);STUDY ON FREEZING SWELLING AND THAWING SUBSIDENCE OF ARTIFICIAL FREEZING-THAWING SOIL IN THE LIUZHUANG COALMINE,HUAINAN[J];Geology of Anhui;2009-01 2 LIU Xiao-jun,WANG Tie-hang,HAN Yong-qiang,ZHAO Yan-feng(1.School of Civil Engineering,Xi' an University of Architecture and Technology,Xi 'an 710055,China;2.Department of Construction Engineering,Xi'an Technological University);Research and Analysis of the Loess Cave Dwelling Disaster[J];Chinese Journal of Underground Space and Engineering;2007-06 3 LI Shu\|xun,\ NAN Zhuo\|tong,\ ZHAO Lin (Cold and Arid Regions Environment and Engineering Research Institute, CAS, Lanzhou Gansu 730000, China);Impact of Soil Freezing and Thawing Process on Thermal Exchange between Atmosphere and Ground Surface[J];Journal of Glaciolgy and Geocryology;2002-05 4 WANG Ke li, CHENG Guo dong(Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences,Lanzhou Gansu 730000, China);Thermodynamic Model of the Ground Surface and the Roadbed Surface along the Qinghai-Tibetan Railway(Ⅰ): Physical Process and Experimental Scheme[J];Journal of Glaciolgy and Geocryology;2002-06 5 PAN Wei dong 1, 3 , YU Shao shui 2, JIA Hai feng 3, LIU Deng ke 2(1. Southwest Jiaotong University, Chengdu Sichuan 610031, China; 2. State Key Laboratory of Frozen Soil Engineering, CAREERI, CAS, Lanzhou Gansu 730000, China; 3. Northwest Research Institute, CREC, Lanzhou Gansu 730000, China);Variation of the Ground Temperature Field in Permafrost Regions along the Qinghai-Tibetan Railway[J];Journal of Glaciolgy and Geocryology;2002-06 6 GAO Rong 1, WEI Zhi-gang 1, DONG Wen-jie 2 (1.Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou Gansu 730000, China; 2. Institute of Atmospheric Physics, CAS, Beijing 100029, China)=;Interannual Variation of the Beginning Date and the Ending Date of Soil Freezing in the Tibetan Plateau[J];Journal of Glaciology and Geocryology;2003-01 7 MAO Xue-song, HU Chang-shun, DOU Ming-jian, HOU Zhong-jie (School of Highway, Chang'an University, Xi'an Shaanxi 710064, China );Dynamic Observation and Analysis of Moisture and Temperature Field Coupling Process in Freezing Soil[J];Journal of Glaciology and Geocryology;2003-01 8 WU Qing-bai 1, 2 ,\ SHEN Yong-ping 2 ,\ SHI Bin 1 (1.AECI, Department of Earth Science, Nanjing University, Nanjing Jiangsu 210093, China; 2.State Key Laboratory of Frozen Soil Engineering, CAREERI, CAS, Lanzhou Gansu 730000, China);Relationship Between Frozen Soil Together with Its Water-Heat Process and Ecological Environment in the Tibetan Plateau[J];Journal of Glaciology and Geocryology;2003-03 9 ZHANG Yu1,2,\ SONG Min\|hong1,\ L Shi\|hua1,\ SUN Shu\|fen2(1.Cold and Arid Regions Environment and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou Gansu 730000, China; 2.LASG, Institute of Atmospheric Physics, CAS, Beijing 100029, China) ;Frozen Soil Parameterization Scheme Coupled with Mesoscale Model[J];Journal of Glaciology and Geocryology;2003-05 10 WANG Ke-li, CHENG Guo-dong, JIANG Hao, MA Yao-ming, HU Ze-yong(Cold and Arid Regions Environmental and Engineering research Institute, Chinese Academy of Sciences, Lanzhou Gansu 730000, China);Thermodynamic Model of the Ground Surface and EmbankmentSurface along the Qinghai-Tibet Railway (II):Results in the Cloud-Free Condition[J];Journal of Glaciology and Geocryology;2004-02
 China Proceedings of conference Full-text Database 2 Hits
 1 ;基于GIS的青藏铁路数字路基[A];[C];2004 2 Yun LOU, Jie TANG, Shuang LIANG, Zhaoyang LI, NA LI College of Environment and Resource, Jilin University, Changchun, China;Soil Carbon Emissions and the Change of Soil Organic Carbon in the Freezing-Thawing Regions[A];[C];2012
 【Citations】
 Chinese Journal Full-text Database 3 Hits
 1 Cheng Guodong, Wang Shaoling ( Lanzhou Institute of Glaciology and Cryopedology, Academia Sinica );ON THE ZONATION OF HIGH-ALTITUDE PERMAFROST IN CHINA[J];Journal of Glaciology and Geocryology;1982-02 2 WU Qing bai, LI Xin, LI Wen jun (State Key Laboratory of Frozen Soil Engineering, CAREERI, CAS, Lanzhou Gansu 730000, China);Computer Simulation and Mapping of the Regional Distribution of Permafrost along the Qinghai-Xizang Highway[J];Journal of Glaciolgy and Geocryology;2000-04 3 WU Qing bai 1, 2 , LI Xin 1, LI Wen jun 1 (1.State Key Laboratory of Frozen Soil Engineering, CAREERI, CAS, Lanzhou Gansu 730000, China; 2.Earth Science Department of Nanjing University, Nanjing Jiangsu 210093, China);The Response Model of Permafrost along the Qinghai-Tibetan Highway under Climate Change[J];Journal of Glaciolgy and Geocryology;2001-01
 【Co-citations】
 Chinese Journal Full-text Database 10 Hits
 1 LIU Xin-long FU Min FU Qiang (Department of Civil Engineering,Xi'an Technological University,Xi'an 710032,China);Study on Permafrost Development at High Altitude in the West China[J];Chinese Journal of Underground Space and Engineering;2007-S1 2 Cheng Guodong and Wu Bangjun (Lanzhou Institute of Glaciology and Cryopedology, Academia Sinica);Approach to the Mathematical Model of Zonality of High-Altitude Permafrost[J];Journal of Glaciology and Geocryology;1983-04 3 Xu Shuying, Zhang Weixin, ;Xu Defu,., Xu Qizhi and Shi Shenren (Deportment of Geology and 'Geography", Lanzhou University );Discussion on the Periglacial Development in the Northeast Marginal Region of Qinghai-Xizang Plateau[J];Journal of Glaciology and Geocryology;1984-02 4 Wang Shaoling (Lanzhou Institute of Glaciology,and Geocryology, Academia Sinica);Types and Characteristics of Modern Periglaciation along the Qinghai Xizang Highway[J];Journal of Glaciology and Geocryology;1986-02 5 Wang Shading and Luo Xiangrui (Lanzhou Institute of Glaciology and Geocryology, Chinese Academy of Sciences) Guo Pengfei (906 Hydrogeological and Engineering Geological Brigade, Ministry of Geology and Minerals);The Distributive Characteristics of Frozen Ground in the East of Qinghai-Xizang Plateau[J];Journal of Glaciology and Geocryology;1991-02 6 Kang Ersi(Lanzhou Institute of Glaciology and Geocryology, Chinese Academy of Sciences, 730000);Characteristics of Energy Balance and Computation on the Mass Balance Change of the High-Asia Cryosphere[J];Journal of Glaciology and Geocryology;1996-S1 7 Wang Shaoling, Zhao Xiufeng, Guo Dongxing and Huang Yizhi(Observation and Research Station of Qinghai-Xizang Plateau, LIGG, CAS, 730000);Response of Permafrost to Climate Change in the Qinghai-Xizang Plateau[J];Journal of Glaciology and Geocryology;1996-S1 8 Tong Changjiang and Wu Qingbai(Lanzhou Institute of Glaciology and Geocryoiogy, Chinese Academy of Sciences, 730000);Permafrost Zonation of Crround Temperature and Stability of Engineering Constructions in the Western Region, China[J];Journal of Glaciology and Geocryology;1996-S1 9 WU Qing bai, LI Xin, LI Wen jun (State Key Laboratory of Frozen Soil Engineering, CAREERI, CAS, Lanzhou Gansu 730000, China);Computer Simulation and Mapping of the Regional Distribution of Permafrost along the Qinghai-Xizang Highway[J];Journal of Glaciolgy and Geocryology;2000-04 10 WU Qing bai 1, 2 , LI Xin 1, LI Wen jun 1 (1.State Key Laboratory of Frozen Soil Engineering, CAREERI, CAS, Lanzhou Gansu 730000, China; 2.Earth Science Department of Nanjing University, Nanjing Jiangsu 210093, China);The Response Model of Permafrost along the Qinghai-Tibetan Highway under Climate Change[J];Journal of Glaciolgy and Geocryology;2001-01
 China Proceedings of conference Full-text Database 5 Hits
 1 Wang Hainian, Dou Mingjian (Highway school, Chang' an University, Xi' an 710064);Nonlinear Analysis of Thermal Regime in Permafrost Embankment in Qinghai-Tibet Plateau Based on Actual Boundary Condition[A];[C];2005 2 LI Jing 1 , SHENG Yu 1 , WU Ji-chun 1 , ZHANG Bo 1 , YE Bai-sheng 2 , WANG Jie 3 , ZHANG Xiu-min 1 , QIN Xiang 3 1. State Key Laboratory of Frozen Soil Engineering, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou 730000, China 2. State Key Laboratory of Cryospheric Science, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou 730000, China 3. Yunnan Institute of Water Resources and Hydropower Research, Kunming 650228, China 4. Qilian Shan Station of Glaciology and Ecologic Environment, State Key Laboratory of Cryospheric Science, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou 73000, China;Mapping permafrost distribution and analyzing zoning characteristics of permafrost ground temperatures in the upper area of Shule river, western Qilianshan mountains[A];[C];2011 3 ;On Research and its Prospect of Key Problems in Special Soil Engineering[A];[C];2006 4 ZHANG Zhongqiong WU Qingbai ZHANG Ze HOU Yandong (State Key Laboratory of Frozen Soil Engineering,Cold and Arid Regions Environmental and Engineering Research Institute,CAS, Lanzhou 730000);ANALYSIS OF THE MEAN ANNUAL GROUND TEMPERATURE CHANGES ON THE QINGHAI-TIBET PLATEAU PERMAFROST REGIONS UNDER CONDITION OF CLIMATE WARMING[A];[C];2012 5 LING Sheng;YAO Xin;WANG Zongsheng;LI Lingjing;Key Laboratory of Neotectonic Movement & Geohazard,Ministry of Land and Resources/Institute of Geomechanics,Chinese Academy of Geological Sciences;China University of Geoscience(Beijing);;DISTRIBUTION FEATURE,FROZEN THRAWING DAMAGE AND ENGINEERING PREVENTION MEASURE OF HIGH-ALTITUDE PERMAFROST[A];[C];2014
 【Co-references】
 Chinese Journal Full-text Database 10 Hits
 1 Yu Shufang,Xu Changying & Zhang Jun (Soil and Fertilizer Institute,Shandong Academy of Agricultural Sciences,Jinan 250100);Study on Different Forms of Nitrogen Retention in Main Soils in Shandong Province[J];SHANDONG AGRICULTURAL SCIENCES;1998-05 2 ZHAO Zhi gen(Department of Resources and Environmental Engineering,Huainan Institute of Technology,Huainan 232001,China );STUDY ON UNSTABLE TEMPERATURE FIELD BY FINITE DIFFERENCE METHOD[J];Geology of Anhui;2002-01 3 PENG Gong-sheng, XU Qiang (Department of Building Engineering,Tongji University,Shanghai 200092, China);The numerical analysis of the phase-change field of temperature coupled with moisture, stress in saturated frozen soil[J];Journal of Anhui Institute of Architecture;2005-02 4 CHANG Xian-bo et al(College of Environmental and Material Engineering,Yantai University,Yantai,Shandong 264005);Effect on Soil Quality of Planting Age of Garden[J];Journal of Anhui Agricultural Sciences;2007-05 5 LI Qin(College of Tourism,Chongqing Technology Business University,Chongqing 400067);Soil Nitrogen Cycle in Agro-ecosystem and its Influence on Soil Nitrogen Loss[J];Journal of Anhui Agricultural Sciences;2007-11 6 ZHU Yan et al(Key Laboratory of Frozen Soil Engineering,Cold and Arid Regions Environment and Engineering Research Institute,Chinese Academy of Sciences,Lanzhou,Gansu 730000);Numerical Simulation of Water and Heat Transfer During Unsaturated Soil Freezing[J];Journal of Anhui Agricultural Sciences;2007-17 7 WEI Li-hong(Liaoning Agricultural Vacation-technical College,Yingkou,Liaoning 115009);Review on the Effects of Freezing and Thawing on the Physiochemical and Biological Properties of Soil[J];Journal of Anhui Agricultural Sciences;2009-11 8 LU Si-jia (Northeast Agricultural University,Harbin,Heilongjiang 150030);Research Progress on Influential Factors of Soil Organic Carbon[J];Journal of Anhui Agricultural Sciences;2010-06 9 WANG Hai-rong et al(China University of Geosciences,School of Geosciences and Resources,Beijing 100083);Research Progress on Soil Inorganic Carbon[J];Journal of Anhui Agricultural Sciences;2011-35 10 Qian Qihu;The Fourth Wave of Geotechnology[J];UNDERGROUND SPACE;1999-04
 China Proceedings of conference Full-text Database 1 Hits
 1 Li Gongzhou, Wang Changsheng, Zhang Yunli (Beijing China Coal Mine Construction Engineering Company Ltd, Science Academy, Beijing 100013);Research on freezing shaft sinking technology for deep thick alluvium in main and auxiliary mine shafts of Chengcun Mine[A];[C];2005
 【Secondary References】
 Chinese Journal Full-text Database 10 Hits
 1 WU Man-li et al (Shenyang Center Meteorological Observatory,Shenyang,Liaoning 110016);Preliminary Study on Temporal Variation and Forecast Model of the First Soaking Rain in Spring Sowing Period of Liaoning Province[J];Journal of Anhui Agricultural Sciences;2009-30 2 LIU Xiao-ying et al (Sanhe Meteorological Bureau,Sanhe,Hebei 065200);Ground and Shallow Ground Temperature Changes Trend in Sanhe City in 40 Years[J];Journal of Anhui Agricultural Sciences;2012-03 3 CHEN Yi-ting et al(School of Environment,Beijing Normal University,Beijing 100875);Effect of Freeze-thaw Action on Ammonium Adsorption in Dryland Soil[J];Journal of Anhui Agricultural Sciences;2012-19 4 WANG Guo-kun BAI Hong-ying(Hebei Provincial Meteorological Bureau of Botou City,Botou Hebei 062150);Ground and Shallow Ground Temperature Change Trend Analysis of Botou city in 1979—2008[J];Modern Agricultural Science and Technology;2012-11 5 LIU Xiao-jun,WANG Tie-hang,HAN Yong-qiang,ZHAO Yan-feng(1.School of Civil Engineering,Xi' an University of Architecture and Technology,Xi 'an 710055,China;2.Department of Construction Engineering,Xi'an Technological University);Research and Analysis of the Loess Cave Dwelling Disaster[J];Chinese Journal of Underground Space and Engineering;2007-06 6 LIU Hui1,YANG Geng-she1,TIAN Jun-feng1,XU Jiang1,2(1.Institute of Architecture and Civil Engineering,Xi'an University of Science &Technology,Xi'an 710054,China;2.2.Kunshan Design Institute of Urban Constrution and Development Company Ltd.Su Zhou 215300,China);Meso-structural Character and Numerical Simulation of Temperature Field of Frozen-rock[J];Chinese Journal of Underground Space and Engineering;2007-06 7 Wang Tiehang1,Wang Juanjuan1,Fang Jiangfeng2(1.College of Civil Engineering,Xi'an University of Architecture and Technology,Xi'an 710055,China; 2.China Nuclear Power Design Company.Ltd,Shenzhen Guangdong 518029,China);Stability Analysis of Loess Tunnel Entrance Section Considering the Impact of Vertical Joints[J];Chinese Journal of Underground Space and Engineering;2012-01 8 WANG Ke li, CHENG Guo dong(Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences,Lanzhou Gansu 730000, China);Thermodynamic Model of the Ground Surface and the Roadbed Surface along the Qinghai-Tibetan Railway(Ⅰ): Physical Process and Experimental Scheme[J];Journal of Glaciolgy and Geocryology;2002-06 9 SHENG Yu 1, LIU Yong-zhi 1, ZHANG Jian-ming 1, WU Jin-min 2, ZHANG Jin-zhao 2 (1. State Key Laboratory of Frozen Soil Engineering, CAREERI, CAS, Lanzhou Gansu 730000, China; 2. First Highway Survey and Design Institute, Ministry of Communication of China, Xian Shaanxi 710068, China);Analysis on the Thawing of Permafrost underlying Qinghai-Tibetan Highway[J];Journal of Glaciology and Geocryology;2003-01 10 GAO Rong 1, WEI Zhi-gang 1, DONG Wen-jie 2 (1.Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou Gansu 730000, China; 2. Institute of Atmospheric Physics, CAS, Beijing 100029, China)=;Interannual Variation of the Beginning Date and the Ending Date of Soil Freezing in the Tibetan Plateau[J];Journal of Glaciology and Geocryology;2003-01
 China Proceedings of conference Full-text Database 10 Hits
 1 YANG Honglu,SUN Hui,ZHANG Ning,JIANG Fayan (Department of Environmental Science and Engineering,Sichuan University,Chengdu,610065);A review:Impacts of freeze-thaw circles on soil CO_2 and N_2O emissions[A];[C];2009 2 ;基于GIS的青藏铁路数字路基[A];[C];2004 3 TU Xin-bin,DAI Fu-chu (Institute of Geology and Geophysics,CAS,Beijing 100029,China);Analytical solution for one-dimensional heat transfer equation of soil and evaluation for thermal diffusivity[A];[C];2009 4 NIU Fujun~(①②)WU Qingbai~①LAI Yuanming~①SUN Zhizhong~①FENG Wenjie~①(①State Key Laboratory of Frozen Soils Engineering,CAREE,CAS,Lanzhou 730000)(②Cold Regions Road Engineering Laboratory,First Highway Design and Research Institute,Xi'an 710068);PERMAFRSOT DEGRADATION IN QINGHAI - TIBET PLATEAU AND THERMAL STABILITY OF THE RAILWAY[A];[C];2007 5 Shuangqing LIANG,Fenglong ZHANG,Pengfei AN,Shiyi DONG Institute of 904 Engineering Investigation,Heilongjiang Province,Harbin,150027;Research on Law of Water,Heat and Salt Movement in Earth Frost Heaving and Thaw Collapse[A];[C];2011 6 Liu Hui Yang Gengshe Ren Jianxi Zhang Huimei (School of Architecture and Civil Engineering,Xi'an University of Science & Technology, Xi'an,710054,Shaanxi,China);Digital Representation of Meso-structure for the Shale Rock and Quantitative Analysis of Temperature Field Law during Frost-thaw Cycles[A];[C];2009 7 Bingjing Ye~1,Jihua Zhao~1,Huyuan Feng~2,Jian Fang~(1*),Weiguo Shen~(1,3) 1 School of Chemistry and Chemical Engineering,LanZhou University,LanZhou 730000,2 School of Life Sciences,LanZhou University,LanZhou 730000,3 School of Chemistry and Chemical Engineering,East China University of Science and Technology,Shanghai,200237;Microcalorimetry study on the microbial activity of permafrost on the Tibetan Plateau of China[A];[C];2010 8 MENG Long~①NI Wankui~①TANG Lisha~②LI Liang~③CHANG Zhonghua~④(①College of Geology Engineering and Geomatics,Chang'an University,Xi'an 710054) (②The Second Institute of Geological Engineering Exploration of Yunnan,Chuxiong 675000) (③AVIC APC Changsha Design and Research Co.,Ltd.,Changsha 410014) (④Institute of Geology and Geophysics,Chinese Academy of Sciences,Beijing 100029);STUDY ON JOINTS' INFLUENCE ON THE CAVE DISASTERS[A];[C];2012 9 LIU Jian-jun,XIE Jun (School of Civil Engineering and Architecture,Southwest Petroleum University,Chengdu 610500,China);Numerical simulation of thermo-hydro-mechanical coupling around underground pipelines in patchy permafrost region[A];[C];2013 10 LI Xiaoxiao;LIU Xiaochu;Dalian Meteorological Observatory;;Analysis on variation characteristics of annual surface air and ground temperatures in Dalian from 1961 to 2010[A];[C];2015
 【Secondary Citations】
 Chinese Journal Full-text Database 8 Hits
 1 Cheng Guodong, Wang Shaoling ( Lanzhou Institute of Glaciology and Cryopedology, Academia Sinica );ON THE ZONATION OF HIGH-ALTITUDE PERMAFROST IN CHINA[J];Journal of Glaciology and Geocryology;1982-02 2 Tong Changjiang and Wu Qingbai(Lanzhou Institute of Glaciology and Geocryoiogy, Chinese Academy of Sciences, 730000);Permafrost Zonation of Crround Temperature and Stability of Engineering Constructions in the Western Region, China[J];Journal of Glaciology and Geocryology;1996-S1 3 WANG Shaoling; ZHAO Xinmin(Observation and Research Station of Qinghai-Xizang Plateau, LIGG, CAS, Lanzhou 730000);Analysis of the Ground Temperatures Monitored in Permafrost Regions on the Tibetan Plateau[J];JOURNAL OF GLACIOLGY AND GEOCRYOLOGY;1999-02 4 WU Qing bai, LI Xin, LI Wen jun (State Key Laboratory of Frozen Soil Engineering, CAREERI, CAS, Lanzhou Gansu 730000, China);Computer Simulation and Mapping of the Regional Distribution of Permafrost along the Qinghai-Xizang Highway[J];Journal of Glaciolgy and Geocryology;2000-04 5 Zhu Linan; Wu Ziwang and Liu Yongzhi(State Key Laboratory of Frozen Soil Engineering. LIGG, CAS. 730000);Permafrost Degeneration in the East of Tibetan Plateau[J];JOURNAL OF GLACIOLGY AND GEOCRYOLOGY;1995-02 6 Niu Wenyuan(Institute of Geography, Academia Sinica);THEORETICAL ANALYSIS OF PHYSICO-GEOGRAPHICAL ZONATION[J];Acta Geographica Sinica;1980-04 7 Cheng Guo-dong (Lanzhou Institute of Glaciology and Cryopedology, Academia Sinica);PROBLEMS ON ZONATION OF HIGH-ALTITUDE PERMAFROST[J];Acta Geographica Sinica;1984-02 8 Yang Huairen Xu Xin;QUATERNARY ENVIRONMENTAL CHANGES IN EASTERN CHINA[J];Journal of Nanjing University(Natural Sciences);1980-01
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