Kahayan River

Kahayan River
Sungai Kahayan
Kahayan River is located in Kalimantan
Kahayan River
River mouth location
Kahayan River is located in Indonesia
Kahayan River
Kahayan River (Indonesia)
Location
CountryIndonesia
Physical characteristics
SourceSchwaner Mountains
 • locationCentral Kalimantan and West Kalimantan, Borneo
MouthJava Sea
 • location
Bapuju (Pulang Pisau Regency)
 • coordinates
3°21′0″S 114°1′58″E / 3.35000°S 114.03278°E / -3.35000; 114.03278
Length658 km (409 mi)
Basin size15,500 km2 (6,000 sq mi)[1] 15,373 km2 (5,936 sq mi)[2]
Discharge 
 • locationJava Sea (near mouth)
 • average1,178.4 m3/s (41,610 cu ft/s)[3]
Discharge 
 • locationPalangkaraya (Basin size: 6,958 km2 (2,686 sq mi)[4]
 • average771 m3/s (27,200 cu ft/s)[5]
Basin features
River systemKahayan basin (DAS320365)[6]

The Kahayan River, or Great Dayak River, is the second largest river after the Barito River in Central Kalimantan, a province of Indonesia in Kalimantan – the Indonesian part of the island of Borneo. With a total length of 658 km (409 mi) and with a drainage basin of 15,500 km2 (6,000 sq mi) in South Kalimantan, Indonesia. Mean annual discharge 1,178 m3/s (41,600 cu ft/s). The provincial capital Palangkaraya lies on the river. The main inhabitants are Dayaks, who practice slash-and-burn rice cultivation and pan for gold on the upper reaches. The lower Kayahan flows through a rich and unusual environment of peat swamp forests, which has been severely degraded by an unsuccessful program to convert a large part of the area into rice paddies, compounded by legal and illegal forestry.

  1. ^ Kevin, Telmer; Daniel, Stapper (November 2007). "Evaluating and Monitoring Small Scale Gold Mining and Mercury Use: Building a Knowledge-base with Satellite Imagery and Field Work".
  2. ^ Daniel, Stapper (2011). "Artisanal Gold Mining, Mercury and Sediment in Central Kalimantan, Indonesia" (PDF).
  3. ^ Kevin, Telmer; Daniel, Stapper (November 2007). "Evaluating and Monitoring Small Scale Gold Mining and Mercury Use: Building a Knowledge-base with Satellite Imagery and Field Work".
  4. ^ Daniel, Stapper (2011). "Artisanal Gold Mining, Mercury and Sediment in Central Kalimantan, Indonesia" (PDF).
  5. ^ Daniel, Stapper (2011). "Artisanal Gold Mining, Mercury and Sediment in Central Kalimantan, Indonesia" (PDF).
  6. ^ Hukum Online. "Keputusan Menteri Kehutanan No. SK.511/MENHUT-V/2011" (in Indonesian).