Waeapo River Wae Apo, Way Apu, Apo | |
---|---|
Location | |
Country | Indonesia |
Province | Maluku |
Regency | Buru South Buru |
Physical characteristics | |
Mouth | Banda Sea |
• coordinates | 3°19′34″S127°4′21″E / 3.32611°S 127.07250°E |
Length | 80 km (50 mi) [1] to 47.22 km (29.34 mi) [2] |
Basin size | 1,800 km2 (690 sq mi) [3] to 1,891.4 km2 (730.3 sq mi) [1] |
Discharge | |
• location | Near mouth |
• average | (Period: 1971–2000)46.3 m3/s (1,640 cu ft/s) [1] (Period: 2003–2015)65.3 m3/s (2,310 cu ft/s) [4] |
Basin features | |
River system | Waeapo River |
The Waeapo River is a river which flows on the island of Buru, Maluku, Indonesia. It is one of the main rivers of the island, draining towards the Banda Sea in the northeast of the island.
Following the communist purges in the 1960s, thousands of political prisoners were incarcerated in Buru, and they were mostly placed around the Waeapo River valley. [5] This was partly due to the valley's topographic features, being surrounded by continuous steep cliffs. [6] As the river was navigable, it was used to transport prisoners inland. [5] The lower Waeapo valley later became a destination for Javanese transmigrants, with over 20,000 settlers moving into settlements on the Waeapo River's floodplain and establishing rice fields. [7] The Waeapo valley remains the concentration of nearly all rice agriculture in Buru. [8]
Since 2012, due to gold mining activities in a nearby mountain, mercury has begun leaching into the river, although 2015 measurements indicated acceptable levels. [9] Further illegal gold mining continued to pollute the river and its tributaries with mercury. [10] In August 2020, dam construction began in the river to provide water for irrigation systems and an expected electrical production of 8 MW. [11]
The river valley forms an alluvial plain in the northeast of the island, which comprised the Waeapo district of Buru Regency. [2] It is the largest alluvial plain in Buru, with a basin area of around 1,800 square kilometers. [3] It drains into the Kayeli Bay in the northeast of the island, which is connected to the Banda Sea. [12] The river floods annually during monsoon season. [13]
The river's mouth is a mangrove swamp, the largest on the island. [8]
Buru is the third largest island within the Maluku Islands of Indonesia. It lies between the Banda Sea to the south and Seram Sea to the north, west of Ambon and Seram islands. The island belongs to Maluku province and includes the Buru and South Buru regencies. Their administrative centers, Namlea and Namrole, respectively, have ports and are the largest towns of the island, served by Namlea Airport and Namrole Airport respectively.
The Central Malayo-Polynesian languages (CMP) are a proposed branch in the Malayo-Polynesian subgroup of the Austronesian language family. The languages are spoken in the Lesser Sunda and Maluku Islands of the Banda Sea, in an area corresponding closely to the Indonesian provinces of East Nusa Tenggara and Maluku and the nation of East Timor, but with the Bima language extending to the eastern half of Sumbawa Island in the province of West Nusa Tenggara and the Sula languages of the Sula archipelago in the southwest corner of the province of North Maluku. The principal islands in this region are Sumbawa, Sumba, Flores, Timor, Buru, and Seram. The numerically most important languages are Bima, Manggarai of western Flores, Uab Meto of West Timor, and Tetum, the national language of East Timor.
The Central Maluku languages are a proposed subgroup of the Central–Eastern Malayo-Polynesian branch of the Austronesian language family which comprises around fifty languages spoken principally on the Seram, Buru, Ambon, Kei, and the Sula Islands. None of the languages have as many as fifty thousand speakers, and several are extinct.
The Martapura River is a river of southeast Borneo, Indonesia. It is a tributary of the Barito River. Other names for the river are Banjar Kecil River or Kayutangi River and due to many activities of Chinese merchants in the past in the downstream area also called China River. It merges with the Barito River in Banjarmasin, flowing from the source in Martapura, Banjar Regency, South Kalimantan.
The Sissa River is a river of Flores, East Nusa Tenggara, Indonesia. The 87-km river flows from a southwest to northeast direction, with the upstream at Mount Inielika north of Bajawa, Ngada Regency and discharges into the Flores Sea near Mbay, Nagekeo Regency.
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The Serayu River is a river in Central Java, Indonesia, about 300 km southeast of the capital Jakarta.
Paguyaman River is a river in Gorontalo (province), Sulawesi island, Indonesia, about 1900 km northeast of capital Jakarta.
Buru Regency is a regency of Maluku province, Indonesia. When it was first created on 4 October 1999, the regency encompassed the entire island ; but on 24 June 2008 the southern 40% of the island was split off to form a separate Buru Selatan Regency. The residual Buru Regency comprises the northern 60% of the island of Buru and covers an area of 7,595.58 km2. The population at the 2010 census was 108,445 and at the 2020 census this had increased to 135,238; the official estimate as at mid 2022 was 137,990. The principal town lies at Namlea.
The Eti River is a river of Seram Island, Maluku province, Indonesia, about 2400 km northeast of the capital Jakarta. It flows into the sea on the southwest side of the island, a few kilometres south of the town of Piru, West Seram Regency.
The Tala River is a river of western Seram Island, Maluku province, Indonesia, about 2400 km northeast of the capital Jakarta.
Ci Kaengan is a river in the island of Java, Indonesia, that flows mainly in the Garut Regency of West Java province, about 210 km to the southeast of the capital Jakarta.
Namlea is a town and district (kecamatan) situated on the north side of Kayeli Bay on the northeastern coast of the Indonesian island of Buru. It is the capital of the Buru Regency.
The Kambaniru River is a river in the island of Sumba, Indonesia, about 1,500 km east of the capital Jakarta. With a length of approximately 118 km, it flows periodically through 9 districts in the East Sumba Regency, exiting to the Bay of Kambaniru near the city of Waingapu to the Sawu Sea, with high debit in the wet season, but very low in the dry season.
The Babak River is a river that flows in the island of Lombok, in West Nusa Tenggara, Indonesia.
Muara Gembong is a district of Bekasi Regency, West Java, Indonesia.
Central Papua, officially the Central Papua Province is an Indonesian province located in the central region of Western New Guinea. It was formally established on 11 November 2022 from the former eight western regencies of the province of Papua. It covers an area of 61,072.92 km2 and had an officially estimated population of 1,430,951 in mid 2022. It is bordered by the Indonesian provinces of West Papua to the west, the residual province of Papua to the north and northeast, by Highland Papua to the east. and by South Papua to the southeast. The administrative capital is located in Wanggar District in Nabire Regency, although Timika is a larger town.
The Wai Apu people are one of the native peoples of Buru island in Maluku, Indonesia, typically inhabiting the north-east of the island in what are now the Namlea and Waplau districts. Research from the Indonesian Ministry of Social Affairs in 1985 numbers the Wai Apu population at approximately 44,048.