The seasonal variation of rainfall in the Huangho Valley may be summed up by the following characteristics of economic significance:一(1) Scarce in spring: The record of most stations is less than 100 mm of the annual rainfall. (2) Concentrated in summer: Half of the annual rain falls in summer, while in North China Plain 75%. Days with 50 mm rainfall or more are not rare.
C. C. Yang and S. Y. Hs?
. THE PLUVIAL REGIME AND THE DROUGHTS OF THE HUANGHO VALLEY[J]. Acta Geographica Sinica, 1956
, 22(4)
: 339
-352
.
DOI: 10.11821/xb195604004
