Wednesday, September 05, 2007

10 Sungai Dunia

Berikut ini adalah tentang 10 sungai utama di Bumi yang mengalami tekanan terutama karena aktifitas manusia maupun perubahan perubahan iklim. Mari kita cermati kondisi ke-sepuluh sungai itu dan mencoba menarik pelajaran darinya.

From: waterforum@yahoogroups.com, [WaterForum] Digest Number 1516
Fwd: ENDANGERED RIVERS
Posted by: "Dr.Syed.S. Ahmed"
Date: Tue Sep 4, 2007 9:54 am


The ten river basins across the world which face the greatest risk of drying out:

1. Rio Grande
Flows through: US, Mexico
Length: 1,890 miles.
Key threats: Water extraction, salination, invasive species
Dependent wildlife: 69 of the 121 fish species found nowhere else

2. Yangtze
Flows through: China
Length: 3,910 miles
Key threats: Pollution, 105 planned dams, overfishing
Dependent wildlife: 350 fish species including Yangtze Sturgeon, 160 amphibian species, Finless Porpoise, Chinese Alligator, Giant Panda, and the largest salamander in the world

3. Mekong
Flows through: China, Laos, Burma, Vietnam, Thailand, Cambodia
Length: 2,860 miles
Key threats: Overfishing, 149 dams planned, deforestation, pollution
Dependent wildlife: Mekong giant catfish (the world's largest freshwater fish), 160 amphibian species, estimated 1,700 fish species, Irrawaddy river dolphin

4. Salween
Flows through: China, Burma, Thailand
Length: 1,740 miles
Key threats: 16 proposed dams
Dependent wildlife: The fishing cat, Siamese crocodile, small panda, wild donkey of Dulong, 92 amphibian species. 47 of its 143 fish species are found nowhere else

5. Murray-Darling basin
Flows through: Australia
Length: 2,100 miles
Key threats: Invasive species, salinisation, climate change
Dependent wildlife: Silver perch, freshwater catfish, Murray cod, crayfish and freshwater snails, 16 mammal and 35 bird species

6. Ganga
Flows through: India, but also drains from Nepal and China
Length: 1,560 miles
Key threats: Water extraction, 14 proposed dams, climate change
Dependent wildlife: Ganges river dolphin, freshwater shark (Glyphis gangeticus), 140 fish species and 90 amphibian species

7. Indus
Flows through: Pakistan, but also drains from Afghanistan, India and China
Length: 1,800 miles
Key threats: Climate change, water extraction, pollution, 6 proposed dams
Dependent wildlife: Indus river dolphin, 22 of 147 species of fish are found nowhere else, 25 amphibian species

8. La Plata basin
Flows through: Paraguay, Brazil, Uraguay, Bolivia, Argentina
Length: 2,500 miles
Key threats: 27 proposed dams, dredging, overfishing, climate change, pollution
Dependent wildlife: La Plata river dolphin, ocelots, 85 of 350 species of fish are found nowhere else, more than 1,600 species of flowering plants. Fills the Pantanal, the largest freshwater wetland in the world

9. Nile
Flows through: Egypt, Sudan, Ethiopia, Uganda, and drains from Tanzania, Burundi, Rwanda, Democratic Republic of Congo, Eritrea and Kenya.
Length: 4,160 miles
Key threats: Climate change, extraction, invasive species
Dependent wildlife: Nile crocodile, 26 of its 129 fish species are found nowhere else, 137 amphibian species

10. Danube
Flows through: Germany, Austria, Slovakia, Hungary, Serbia, Romania and Bulgaria
Length: 1,730 miles
Key threats: 8 proposed dams, shipping infrastructure, flood protection measures, pollution, invasive species
Dependent wildlife: 7 of its 103 fish species and 18 of its 88 freshwater molluscs are found nowhere else

--- End forwarded message ---

Salam dari Ancol,

WBS

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