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

Ecological Processes

Table 1 The changes of natural flow regime relative to the post-impact period (in MCM)

Station	Jan	Feb	Mar	Apr	May	Jun	July	Aug	Sep	Oct	Nov	Dec	OPC^*	ONC^**
Eskandari	7.6	8.4	7.0	− 11.1	− 13.1	− 11.5	0.2	0.2	0.2	2.8	5.8	7.6	39.8	− 35.7
Qale-Shahrokh	− 6.4	11.9	47.4	− 7.3	− 37.5	− 18.7	− 5.9	− 15.3	− 11.3	− 13.7	− 19.4	− 18.5	59.3	− 153.9
Pole-Zamankhan	89.7	89.6	25.1	− 227.6	− 227.6	− 89.2	77.8	168.1	184.4	168.3	154.5	142.1	1099.6	− 544.4
Pole-Kalle	16.0	15.6	41.6	− 110.5	− 52.4	37.3	115.0	162.0	121.0	52.8	100.4	51.1	675.6	− 125.6
Musian	18.9	13.8	26.0	− 71.3	− 39.0	− 10.5	32.8	48.2	46.6	20.3	51.6	33.9	292.2	− 120.8
Varzanah	5.4	3.5	0.9	− 73.1	− 78.7	− 42.1	0.3	0.9	0.9	1.1	2.1	3.3	18.6	− 193.9