Waeapo River

Last updated
Waeapo River
Wae Apo, Way Apu, Apo
Waeapo River at Planned Dam.jpg
The Waeapo River
Indonesia Maluku location map.svg
Red pog.svg
Location of river mouth
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 / -3.32611; 127.07250
Length80 km (50 mi) [1] to 47.22 km (29.34 mi) [2]
Basin size1,800 km2 (690 sq mi) [3] to 1,891.4 km2 (730.3 sq mi) [1]
Discharge 
 • locationNear 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.

Contents

History

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]

Geography

Waeapo River ("Apo") flowing to "Teluk Kajeli" on the northeast coast of Buru. Red line marks approximate watershed boundaries. Waeapo Watershed.png
Waeapo River ("Apo") flowing to "Teluk Kajeli" on the northeast coast of Buru. Red line marks approximate watershed boundaries.

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]

See also

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References

  1. 1 2 3 "Palau & East Indonesia".
  2. 1 2 Ansori, Mohamad Bagus; Tunas, I Gede; Margini, Nastasia Festy (2017). "Analisis Banjir Rancangan dengan Mempertimbangkan Karakteristik Fraktal Daerah Aliran Sungai (Studi Kasus: Bendungan Way Apu di Pulau Buru, Provinsi Maluku)". Jurnal Hidroteknik (in Indonesian). 2 (2): 33–38. doi: 10.12962/jh.v2i2.4411 .
  3. 1 2 Osok, Rafael M.; Talakua, Silwanus M.; Manusama, Alfredo; Kunu, Pieter J. (11 July 2020). "Karakteristik Morfometri Dan Hidrologi Daerah Aliran Sungai Way Apu Kabupaten Buru". Agrologia (in Indonesian). 9 (1). doi: 10.30598/a.v9i1.1058 . ISSN   2580-9636.
  4. ↑ Radhika, Radhika; Firmansyah, Rendy; Hatmoko, Waluyo (Nov 2017). "Computation of surface water availability in Indonesia based on satellite data". Jurnal Sumber Daya Air. 13 (2): 115–130. doi: 10.32679/jsda.v13i2.206 .
  5. 1 2 "Beribu Ingatan Tumiso akan Buru". CNN Indonesia (in Indonesian). 21 April 2016. Retrieved 30 July 2021.
  6. ↑ "Berawal dari Lembah Waeapo". KOMPAS (in Indonesian). 19 October 2013. Retrieved 30 July 2021.
  7. ↑ Tryon, Darrell T. (1 June 2011). Comparative Austronesian Dictionary: An Introduction to Austronesian Studies. Walter de Gruyter. ISBN   978-3-11-088401-2.
  8. 1 2 Mubekti (2011). "Karakterisasi Sumberdaya Lahan Dan Pewilayahan Komoditas Unggulan Perkebunan di Pulau Buru". Jurnal Teknologi Lingkungan (in Indonesian). 12 (3): 309–318. doi: 10.29122/jtl.v12i3.1239 . ISSN   2548-6101.
  9. ↑ Salatutin, Febrian M.; Batawi, Chudeya Y.; Lessil, Camellia Y.; Male, Yusthinus T. (31 July 2015). "Analysis of Mercury (Hg) Distribution In The Waeapo River Irrigation Area, Buru Regency, Maluku Province, Gold Mining Without Permission Result In Botak Mountain Area". Indonesian Journal of Chemical Research. 3 (1): 270–276. ISSN   2614-2627.
  10. ↑ "Polisi Tak Tahu, Ada 1000 Penambang Ilegal di Gunung Nona, Pulau Buru". Berita Beta (in Indonesian). 4 September 2019. Retrieved 30 July 2021.
  11. ↑ "Tertunda 2,5 Tahun, Proyek Bendungan Way Apu Rp 1 Triliun Dikebut". KOMPAS (in Indonesian). 3 March 2021. Retrieved 30 July 2021.
  12. ↑ "Descendants of Majapahit". Tempo. 6 (1–12). Arsa Raya Perdana. 2005.
  13. ↑ "Sungai Waeapo Meluap, Puluhan Rumah Warga Tergenang Air". Tribun Maluku (in Indonesian). 7 July 2020. Retrieved 30 July 2021.
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