Siak River

Siak
Sungai Siak, Siak rivier
Siak; Sungai Siak, Siak rivier
	The Siak River as it flows through Pekanbaru
	Location of river mouth Siak River (Indonesia)
Location
Country	Indonesia
Province	Riau
Physical characteristics
Source
• elevation	0 m (0 ft)
Mouth	Malacca Strait
Length	370 km (230 mi)
Basin size	10,423 km2 (4,024 sq mi)
Discharge
• location	Siak Delta, Malacca Strait
• average	(Period of data: 2009–2013)720 m3/s (25,000 cu ft/s)

The Siak (Sungai Siak) is a river of Riau province, in the east of Sumatra, Indonesia, about 1000 km northwest of the capital Jakarta.^[2] Approximately 370 kilometres in length, the Siak is a blackwater river which owes its brown color to dissolved organic matter (DOM) leached from surrounding, heavily disturbed peat soils; it is heavily polluted, notably by the petroleum industry. It flows through the town of Pekanbaru before emptying into the Strait of Malacca.^[3]

^ ^a ^b Francisca, Wit; Tim, Rixen; Antje, Baum; Widodo, S. Pranowo; Andreas, A. Hutahaean (2018). The Invisible Carbon Footprint as a hidden impact of peatland degradation inducing marine carbonate dissolution in Sumatra, Indonesia.
^ Sungai Siak at Geonames.org (cc-by); Last updated 2013-06-04; Database dump downloaded 2015-11-27
^ John William Reed; John William King (1867). The China sea directory, Volume 1, Hydrographic Dept. Hydrographic office, Admiralty. p. 229.

[The_Invisible_Carbon_Footprint_as_a_hidden_impact_of_peatland_degradation_inducing_marine_carbonate_dissolution_in_Sumatra,_Indonesia-1] Francisca, Wit; Tim, Rixen; Antje, Baum; Widodo, S. Pranowo; Andreas, A. Hutahaean (2018). The Invisible Carbon Footprint as a hidden impact of peatland degradation inducing marine carbonate dissolution in Sumatra, Indonesia.

[2] Sungai Siak at Geonames.org (cc-by); Last updated 2013-06-04; Database dump downloaded 2015-11-27

[3] John William Reed; John William King (1867). The China sea directory, Volume 1, Hydrographic Dept. Hydrographic office, Admiralty. p. 229.

[1]

[2]

[3]

Siak Sungai Siak, Siak rivier
The Siak River as it flows through Pekanbaru
Location of river mouth Show map of Sumatra Siak River (Indonesia) Show map of Indonesia
Location
Country	Indonesia
Province	Riau
Physical characteristics

Source
• elevation	0 m (0 ft)

Mouth	Malacca Strait
Length	370 km (230 mi)
Basin size	10,423 km² (4,024 sq mi)^[1]

Discharge
• location	Siak Delta, Malacca Strait
• average	(Period of data: 2009–2013)720 m³/s (25,000 cu ft/s)^[1]