Dissolved oxygen and bod assimilative capacity of the Selbe river
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Date
2023-05-15
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German Mongolian Institute for Resouce and Technology
Abstract
Mongolia is a landlocked country in Central Asia with a land area of 1’564’116 square km that shares borders with both China and Russia to the north and south, respectively. The total surface water source in Mongolia is around 599 𝑘𝑚3, about 0.00004% of the world’s total water resource. 83.7% of it is accumulated in lakes, 10.5% in glaciers, and 5.8% in river and river systems. Water source in Mongolia is limited and unevenly distributed throughout the whole country, most of the surface water sources are located in Northern Mongolia, as for the Gobi Desert zone majority of the water source is from groundwater. The Mongolian water resource is divided into three main continental basins which are the Northern Arctic Ocean basin, the Pacific Ocean basin, and the Central Asian Internal basin. Furtherly, these three basins are divided into 29 river basins which are both surface and subsurface water basins, shown in Figure 1.