aral sea 💔 Flashcards
1
Q
size of sea originally
A
68 000km2
2
Q
size of drainage basin
A
1.8 million km2
3
Q
where?
A
kazakhstan and uzbekistan
4
Q
1930 was owned by ..?
A
soviet union
5
Q
what activity caused issues in the 1960s?
why was it needed?
why did the issue occur?
A
building of canals
for irrigation of cotton and rice
canal leaked and water evaporated (70% of irrigated water)
6
Q
shrinkage stats:
from 1960-2000
how much did the volume and surface area decrease by?
A
volume : 80%
sa : 60%
7
Q
impacts:
A
- high salinity
- soil erosion
- dust storms
- respiratory problems
- high salinity
- soil erosion
- agricultural production decline
- high salinity
- less fish (4000 in this industry)
- unemployment
- migration
- services in home town struggle
8
Q
dam
A
kokaral
concrete
more input than output
lining irrigation
9
Q
what happened in 1987
A
split in 2
10
Q
what fraction of the original size was the sea in 2004
A
1/4 of original size
