Characteristics of Annual and Seasonal Precipitation Variation in the Upstream of Minjiang River, Southwestern China

Table 4

Abrupt change points of precipitation time series.

Region or station	Maoxian	Songpan	Wenchuan	Lixian	Heishui	Zipingpu	UMR
Spring	1988	N	N	1994	1994	1985	N
Summer	1990	1994	1993	1995	1994	1981	1994
Autumn	N	1984	N	N	1975	N	1976
Winter	N	N	N	N	1987	1981	N
Annual	1995	N	N	N	1995	1981	1995