MAO Yi-wei, ZHOU Yue-hua, CHEN Zheng-hong, et al. Analysis of influence of rainfall factors on mountain floods and geological disasters in Hubei Province[J]. 2005, 26(10).
MAO Yi-wei, ZHOU Yue-hua, CHEN Zheng-hong, et al. Analysis of influence of rainfall factors on mountain floods and geological disasters in Hubei Province[J]. 2005, 26(10).DOI:
Based on 726 cases of mountain floods and geological disasters from 1950 to 2003 in Hubei Province
their temporal and spatial distribution properties are analyzed first; then two abrupt increasing points(1974
1988) of the annual numbers of cases are checked out by moving t-test method (the mountain floods and slope-slip most remarkably)
and annual rainfall also suddenly increased at these two years
and their correlative coefficient is 0.3
which means rainfall is the main natural forcing factors to mountain floods and geological disasters; further analysis shows that severe rainfall above rainstorm is the main leading factors to mountain floods
slope-slip
debris flows
landslide; and lasting rain is the main leading factors to subsiding and also has important impact on slope-slip