The mean discharge of the river at the mouth is about 1,610 m/s. The water is mainly
used for irrigation and water supply of cities and villages. (Dartmouth Flood Observatory,
2006)
The delta area (about 150 km) at south part of the river, is a very important ecological
site, especially being a site for seasonally immigration of the birds, protected under the
RAMSAR convention. (Dartmouth Flood Observatory, 2006) And 2369 hectares are being
under protection since 1991, by Republic of Ministry of Environment and Forestry.