Hydrological alteration and biodiversity change along the river network caused by anthropogenic activities and climate variability

Ecological Processes

Table 2 Group 3, 4 and 5 of IHA parameters for natural flow regime, post-impact flow regime and flow regime under the impact of climate variability

	Station	Group 3		Group 4				Group 5
		Date of		Low pulse		High pulse		Rise rate	Fall rate	Number of reversals
		Minimum	Maximum	Count	Duration	Count	Duration	Rise rate	Fall rate	Number of reversals
Natural flow regime	Eskandari	280	121	1	20.3	3	17	0.02	0	87
	Qale-Shahrokh	39	105	3	9.5	4	5	0.8	− 0.7	112
	Pole-Zamankhan	51	105	2	22	4	5	0.53	− 0.7	115
	Pole-Kalle	57	105	2	33	4	5	1.34	− 1.01	77
	Musian	252	106	1	56.8	5	4.5	1.63	− 0.7	52
	Varzanah	261	114	1	62	2	26	0.34	− 0.06	32
Post-impact flow regime	Eskandari	236	96	0	6	2	13.5	0.21	− 0.24	56
	Qale-Shahrokh	328	96	4	18	3	7	1.7	− 1.4	90
	Pole-Zamankhan	128	246	0	1	3	8.25	1.12	− 1.1	150
	Pole-Kalle	11	153	0		4	6	1.38	− 1.4	174
	Musian	54	125	0	17	4	11	0.9	− 0.89	125
	Varzanah	237	79	0	26	0	7.25	0.13	− 0.12	76
Climate variability scenario	Eskandari	207	121	3	20.5	3	18	0	0	84
	Qale-Shahrokh	51	113	2	14.5	3	5.8	0.7	− 0.7	121
	Pole-Zamankhan	52	116	2	17.3	3	5	0.6	− 0.8	116
	Pole-Kalle	36	113	2	31.8	4	5	0.7	− 0.5	92
	Musian	293	113	1	61.5	5	4	0.5	0	61
	Varzanah	290	120	2	62	2	25.5	0	0	38