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  • 1984 Volume 39 Issue 2
    Published: 15 April 1984
      
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  • ON VERTICAL ZONATION OF THE NORTHWESTERN YUNNAN
    Yang Qin-ye, Shen Kang-da
    1984, 39(2): 141-147. https://doi.org/10.11821/xb198402002
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    The Hengduan Mountains region of the northwestern Yunnan is located at a transition-al zone from the Qinghai-Xizang plateau to the Yunnan-Guizhou plateau, with severe erosion and deep gorges. The vertical zonation is very conspicuous here.Sub-tropical montane semi-evergreen and evergreen broad-leaf forest, temperate montane mixed forest, cool temperate montane coniferous forest, subalpine shrubby meadow, alpine subnival belt and alpine nival belt, as well as low valley shrubs with subtropical and arid climate may be identified.The regional differentiation of the vertical zonation features a transition from east to west as well as from south to north. It is closely correlated with changes of the temperature and moisture.
  • AN EMPIRICAL METHOD FOR ESTIMATING SURFACE LONG-WAVE RADIATION EXCHANGES IN THE QINGHAI-XIZANG PLATEAU
    Zhou Yun-hua
    1984, 39(2): 148-162. https://doi.org/10.11821/xb198402003
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    A meteorological experiment was carried out in the Qinghai-Xizang Plateau during May-August, 1979. Six heat source observational points were established to study surface radiation and head budget over the Qinghai-Xizang Plateau (Tab. 1). Surface long-wave radiation were measured ten times a day using Eppley precision infared radiometer (Model RIR).
  • AN APPROACH TO SHOPPING CENTRE LOCATION OF SHANGHAI''S URBAN AREA
    Ning Yue-min
    1984, 39(2): 163-172. https://doi.org/10.11821/xb198402004
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    The study of urban shopping centre location is one of the important themes in urban geography. In the present paper, applying location theory and quantitative analysis, through investigations, the author attempted to study the classification and hierarchy of shopping cen-tres, and the factors affecting shopping centre location in Shanghai’s urban area.
  • LAND-FORMING HISTORY OF THE HUANGHE RIVER DELTA AND COASTAL PLAIN OF NORTH JIANGSU
    Zhang Ren-shun
    1984, 39(2): 173-184. https://doi.org/10.11821/xb198402005
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    In historical period, the Huang He River flowed through North Jiangsu into the Huanghai sea for nearly 700 years. The abundant load that it carried formed a large delta, a coastal plain and offshore banks. It is due to the shifting of the river estuary that the coastal zone in Jiangsu underwent two great changes in hydrodynamical and sedimentological condi-tions, but the results they brought about are contrary to each other!Through careful analysis of historical literatures and field investigations, this paper at-tempts to discuss the land-forming process of the Huang He Delta, the coastal plain of North Jiangsu and analyse the great effect of the shifting of the river estuary brought on the coas-tal development.
  • PROBLEMS ON ZONATION OF HIGH-ALTITUDE PERMAFROST
    Cheng Guo-dong
    1984, 39(2): 185-193. https://doi.org/10.11821/xb198402006
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    There is an obvious three-dimensional zonation in the distribution of high-altitude per-mafrost, namely, vertical, latitudinal and aridity (or longitudinal) zonation.
  • THE MEASUREMENT OF SOUTH POLE ACCUMULATION RATE OF SNOW WITH MICRO-WAVE REMOTE SENSING METHOD
    Xu Xi-ru
    1984, 39(2): 194-205. https://doi.org/10.11821/xb198402007
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    That is an important problem about accumulation rate of antarctic snow concerned by gl-aciologists. Micro-wave is able to penetrate dry snow layer.