Abstract:

The erosivity of precipitation in the southeast of Fujian Province has been analysed based on the data abtained fronl Anxi alld Nan'an experimental stations and some other rain gauge stations. The results show that the average rainfall intensity in the area is 11 mm/h during the period from March to Setember. Plum rains and typhoon rains are the mainerosive force because of high rainfall intensity and long duration. The maximum rainfall in 60 minutes can be adopted as an index of erosive precipitation, and its value is I₆₀≥9mm in the area. The average annual erosive rainfall is about 520-950mm.

Key words: Rainfall intensity, Precipitation erosivity, Southeast Fujian