Yang Xingguo, Ke Xiaoxin, Zhang Xudong, et al. Rainfall correction concerning assessment on cropland soil water resources. J Appl Meteor Sci, 2001, 12(1): 123-126.
Citation: Yang Xingguo, Ke Xiaoxin, Zhang Xudong, et al. Rainfall correction concerning assessment on cropland soil water resources. J Appl Meteor Sci, 2001, 12(1): 123-126.

RAINFALL CORRECTION CONCERNING ASSESSMENT ON CROPLAND SOIL WATER RESOURCES

  • Received Date: 1999-08-16
  • Rev Recd Date: 2000-01-21
  • Publish Date: 2001-02-28
  • Applying the rainfall (P) measured through lysimeter and the automatic recording rainfall (P′), a comparison has been made. The relation between P and P′is linear, and P is larger than P′. The mean correction coefficient of rainfall (K) is 0.037. K is 0.04 to 0.045 on condition that rainfall duration is shorter than 6 h and otherwise K is 0.27. K decreases with the increase of rainfall intensity. Meanwhile, the rainfall correction from June to September in the rainfed region of Gansu (RRG) including 19 meteorological stations also has been made. The result is that P is about 11.7 to 27.4 larger than P′. The mean P on the area of PRG is 18.4 mm larger than mean P′.
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    • Received : 1999-08-16
    • Accepted : 2000-01-21
    • Published : 2001-02-28

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