FINAL REPORT

groundwater, because of an open channel system. The other nutrient values are nearly 0 or in
Ce distribution
SO4 distribution
14
50
12
45
40
10
35
Values
8
6
Values
30
25
20
4
15
10
2
5
0
0
4 5 6 7 8 9 10 11
4 5 6 7 8 9 10 11
Months
Months
Ce
Ce
SO4
SO4
HCO3 distribution
Ca distribution
120
35
100
30
25
80
60
Values
20
15
40
10
20
5
0
4 5 6 7 8 9 10 11
Months
0
4 5 6 7 8 9 10 11
Months
HCO3
HCO3
Ca
Ca
NH2 distribution
O2 distribution
5
12
4,5
4
10
Values
3,5
3
2,5
2
1,5
Values
8
6
4
1
2
0,5
0
0
4 5 6 7 8 9 10 11
4 5 6 7 8 9 10 11
Months
Months
NH 2
NH2
O2
O2
Figure 22: Chemical Composition (CE, HCO 3 , NH 4 , SO 4 , Ca and O 2 ) of Buyant Gol Water in the Years
2004 (green line) and 2005 (blue line) between April and November of each year measured near
Jargalant(after Meteorological Survey Khovd station)
a very moderate spectrum. The water for the irrigation areas is absolute in a good quality and
can be used for agricultural use.
Another problem is the discharge amount of Buyant Gol river water. As pointed before, the
discharge amount is determined by the annual thermal regime of the high mountains of the
drainage basin. In any case the water does not reach the Khovd Gol, which already had been
described by MURZAJEW during the fourties. Based on the data between 1967 and 2003 it is
calculated an average discharge of 5.9 m3/sec, what means an annual discharge amount of
186 mill.m 3 /year. Concerning the drainage basin the figures show a discharge amount is 13
m 3 /y/m 2 . The maximum discharge amount is 9.99 m 3 /sec, the mimimum discharge amount is
3.33 m 3 /sec. It has to be taken into acount, that the position of the measure station has been
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