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    15 January 1962, Volume 28 Issue 1 Previous Issue    Next Issue
    CHARACTERISTICS OF TEMPERATURE FALL IN THE COLD HALF YEAR OF SOUTH CHINA
    WANG YI-XIAN
    1962, 28 (1):  34-43.  doi: 10.11821/xb196201003
    Abstract ( )   PDF (639KB) ( )   Save
    1. Two characteristic points of temperature fall in the cold half year of South China (S. of 25癗. lat.) have been observed: (1)The fall of temperature has been deeply affected by cold advection, more so in South China than in other parts of the country. In southern Yunnan, however, the fall may result from radiation cooling as well as from cold advection. (2) The fall of daily temperature most frequently occurs in hfarch or February and that of minimum temperature in January for South China, while the fall of both these temperatures for Central China, occurs in March and for North and Northwest China in April. 2. The main tracks of cold wave centers are more frequently between 105-115 E. long. (Kwangtung and Kwangsi) than either to the east or the west. 3. Three regions may be divided according to the intensity of temperature fall: (i) region of strong fall in Kwangtung and Kwangsi, (ii) region of moderate fall in Fukien, (iii) region of slight fall in southern Yunnan.
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    SPORO-POLLEN ANALYSIS OF THE PEAT BED OF THE TUNGTING FORMATION AND ITS GEOLOGICAL AGE AND THE PROBLEM OF PALAEOGEO-GRAPHY
    LI WEN-YI
    1962, 28 (1):  55-72.  doi: 10.11821/xb196201005
    Abstract ( )   PDF (4292KB) ( )   Save
    In this paper the author discusses the microflora of the peat bed found in the basal part of the Tungting formation of northern Hunan. Judging from the sporo-pollen complex, the author suggests that the Tungting formation might belong to the early Quaternary, in comparison with the flora of "Kimmelia" of the southern European plain of USSR. The climate of that region was subtropical and in the later part of that period there was a tendency to become cooler and drier, that is, probably due to the change of the palaeogeo-graphical conditions of the northern hemisFhere.
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