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藏北高原土壤温度的日变化
引用本文:杨梅学,姚檀栋,丁永建,王绍令,陈贤章,Toshio KOIKE,Takeo TADONO.藏北高原土壤温度的日变化[J].环境科学,1999,20(3):5-8.
作者姓名:杨梅学  姚檀栋  丁永建  王绍令  陈贤章  Toshio KOIKE  Takeo TADONO
作者单位:中国科学院兰州冰川冻土研究所
摘    要:为了探讨气候变化的规律和原因,于1997-07-09期间,在藏北高原不同地点分别建立了自动气象站和埋设了土壤温度、湿度观测系统,土壤温度观测数据表明,在60cm以上土壤温度存在着明显的时间变化,其变化为正弦曲线,与太阳辐射的时间变化一致,但存在关不同的时间滞后。地表状况、土壤干湿程度及土壤组分等的差异对土壤温度的时间变化振幅及热通量有影响。在藏北高原,由于挖坑埋设探测食品等对土壤温度场的优动可在5

关 键 词:藏北高原  土壤温度  时间变化  野外观测  气候学
收稿时间:1998/6/12 0:00:00

The Diurnal Variation of the Soil Temperature in theNorthern Part of Tibetan Plateau
Yang Meixue,Yao Tandong,Ding Yongjian,Wang Shaoling,Chen Xianzhang,Toshio KOIKE and Takeo TADONO.The Diurnal Variation of the Soil Temperature in theNorthern Part of Tibetan Plateau[J].Chinese Journal of Environmental Science,1999,20(3):5-8.
Authors:Yang Meixue  Yao Tandong  Ding Yongjian  Wang Shaoling  Chen Xianzhang  Toshio KOIKE and Takeo TADONO
Institution:Lanzhou Institute of Glaciology and Geocryology, CAS Lanzhou 730000, China;Lanzhou Institute of Glaciology and Geocryology, CAS Lanzhou 730000, China;Lanzhou Institute of Glaciology and Geocryology, CAS Lanzhou 730000, China;Lanzhou Institute of Glaciology and Geocryology, CAS Lanzhou 730000, China;Lanzhou Institute of Glaciology and Geocryology, CAS Lanzhou 730000, China;Nagaoka University of Technology, Japan;Nagaoka University of Technology, Japan
Abstract:In order to investigate the patterns and the reasons of the climate change,the automatic weather stations(AWS) and the soil moisture and temperature measurement systems (SMTMS) were installed in the northern part of the Tibetan Plateau during July to september,1997.The observation data of the soil temperature system showed that above 60cm the diurnal variation of the soil temperature is evident.The diurnal variation is consistent with that of the radiation of sun.The diurnal variations are sinusoidal functions.But there exist different time lags in different cite.The surface condition,the dry/wet extent of the soil and the soil components have affected the amplitude of the diurnal variation of the soil temperature and heat flux.In the northern part of the Tibetan Plateau,the turbulence of the soil temperature due to the digging holes to install the observation instruments can be eliminated mainly in 5 days.
Keywords:the northern part of Tibetan Plateau  soil temperature  diurnal variation  field observation    
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