1.ivaylo ivaylov-natural-water-resources-of-bg-october

1. Natural water resources
of Bulgaria
Prepared by Ivaylo Ivaylov, XI “a” grade

2. You are about to see:
Number of
resources
The Iskar
Reservoir
The
Maritsa
river
Lake
Burgas
Problems
Solutions

3. Number of resources
0
50
100
150
200
250
300
350
400
450
500
Danubian
Plain
Upper
Thracian
Lowland
Balkan
Mountains The Rhodopes
Rila and Pirin
Osogovo and
Belasitsa
35 53
340
390
490
330

4. The Iskar Reservoir
General characteristics
• The Iskar Reservoir is the
largest reservoir in Bulgaria;
• It has a total volume of 673
million m3;
• 580 million m3 are in use
and the rest is reserve;
• The reservoir has
a drainage basin of 1,046 km²
and is 25 km long.

5. The Iskar Reservoir
Location
• It is situated on the Iskar
River;
• The Iskar Reservoir is 820
m above sea level;
• Its dam is 204 m long and
76 m high.

6. The Iskar Reservoir
Importance, usage and protection
• The reservoir is used for
producing hydroelectricity;
• It provides 2/3 of the
water for the capital city
Sofia.

7. The Maritsa river
General characteristics
Maritsa is, with
a length of 480
km, the longest
river that runs
solely in the
interior of the
Balkans.

8. The Maritsa river
Location
It has its origin in the
Rila Mountains in
Western Bulgaria,
flowing southeast
between the Balkan
and Rhodope
Mountains, past
Plovdiv and Parvomay
to Edirne, Turkey.

9. The Maritsa river
Importance, usage and protection
The river is
used for power
production and
irrigation.

10. Lake Burgas
General characteristics
• Lake Burgas (or Lake
Vaya) is the largest
natural lake in Bulgaria,
with an area of 27.60
km²;
• It is up to 34 m deep;
• The lake's waters
contain relatively little
salt (about 4-11%).

11. Lake Burgas
Location
It is located near the
Black Sea west of
the city of Burgas.

12. Lake Burgas
Importance, usage and protection
Lake Burgas is
inhabited by a wide
variety of species,
including 23 types of
fish, 60 invertebrates
and 254 bird species
(of which 61 are
endangered in
Bulgaria and 9 in the
world).

13. Lake Burgas
Importance, usage and protection
Lake Burgas lost much of
its economic importance
after the construction of
the petrochemical plant
near the city, but it has
witnessed an increasing
number of species and
decreasing pollution in
recent years.

14. Problems
Occurring
naturally
Caused by
humans
Floods
Water deficit for water
supply and irrigation
Illegal use of water
Irrational use of water
Pollution
Droughts

15. Solutions
Multiple use of water
Watercourses leakage
reduction
Water treatment plants

16. Sources of information

17. Thank you for your attention!