Water resources of the Ob-Irtysh river basin and their use

The Ob-Irtysh river basin and its resources are discussed within the natural and administrative boundaries. The data used in the characteristics include specific water supply, water withdrawal, wastewater discharge, water stress, dilution ratio, as well as water intensity of the gross regional product. Main regularities of water resource use are formulated with regard to the natural zones and regions of the basin. The areas of most urgent water management problems are outlined.