Hydrological impacts of precipitation extremes in the Huaihe River Basin, China

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Table 4 Monthly time series trend slopes of the precipitation indices and streamflow indices during the period 1958–2009 (per decade)

Index	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
PRCPprb	0.02	0.03	−0.01	- 0.03	-0.01	0.00	0.00	0.01	−0. 02	−0.01	−0. 01	0. 01
PRCPtot	2.70	3.56	0.38	−3.41	1.22	7.05	8.30	5.88	−8.16	−2.86	−0.32	1.87
RX1 day	0.84	1.06	−0.07	0.08	0.90	2.30	3.29	1.56	−1.65	−0.83	−0.42	0.72
RX5 day	1.75	1.59	0.66	−1.22	0.03	2.26	5.66	2.25	−1.13	−3.22	−0.59	1.17
FLow	−0.03	0.37	26.88	−20.64	−61.31	−21.95	130.56	81.77	25.72	−36.10	−21.86	−4.06
FX1 day	18.45	7.23	46.26	−60.26	−98.09	70.40	312.92	168.10	125.36	−55.60	−96.15	−9.89
FX5 day	6.47	1.46	44.70	−55.57	−86.86	18.65	288.48	135.84	115.50	−51.80	−59.67	−16.92

Italic denotes the trends are statistically significant [α = 0.05] and the rest non-significant