Lake Maninjau
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Lake Maninjau ( id, Danau Maninjau, meaning "overlook" or "observation" in the
Minangkabau language Minangkabau (Minangkabau: , Pegon script: ; id, Bahasa Minangkabau; ms, Bahasa Minangkabau or , Jawi: ) is an Austronesian language spoken by the Minangkabau of West Sumatra, the western part of Riau, South Aceh Regency, the northern part of ...
) is a
caldera lake A volcanic crater lake is a lake in a crater that was formed by explosive activity or a collapse during a volcanic eruption. Formation Lakes in calderas fill large craters formed by the collapse of a volcano during an eruption. Lakes in maars ...
in
West Sumatra West Sumatra ( id, Sumatra Barat) is a Provinces of Indonesia, province of Indonesia. It is located on the west coast of the island of Sumatra and includes the Mentawai Islands off that coast. The province has an area of , with a population of 5, ...
,
Indonesia Indonesia, officially the Republic of Indonesia, is a country in Southeast Asia and Oceania between the Indian and Pacific oceans. It consists of over 17,000 islands, including Sumatra, Java, Sulawesi, and parts of Borneo and New Guine ...
. It is located to the west of
Bukittinggi Bukittinggi ( min, Bukiktinggi, Jawi: , formerly nl, Fort de Kock) is the third largest city in West Sumatra, Indonesia, with a population of 111,312 in 2010 and 121,028 in 2020, and an area of 25.24 km2. It is in the Minangkabau Highlands ...
, at .


Formation

The Maninjau
caldera A caldera ( ) is a large cauldron-like hollow that forms shortly after the emptying of a magma chamber in a volcano eruption. When large volumes of magma are erupted over a short time, structural support for the rock above the magma chamber is ...
was formed by a volcanic eruption estimated to have occurred around 52,000 years ago. Deposits from the eruption have been found in a radial distribution around Maninjau extending up to to the east, to the southeast, and west to the present coastline. The deposits are estimated to be distributed over and have a volume of . The caldera has a length of and a width of .


The lake

Lake Maninjau has an area of , being approximately long and wide. The average depth is , with a maximum depth of . The natural outlet for excess water is the Antokan river, located on the west side of the lake. It is the only lake in
Sumatra Sumatra is one of the Sunda Islands of western Indonesia. It is the largest island that is fully within Indonesian territory, as well as the sixth-largest island in the world at 473,481 km2 (182,812 mi.2), not including adjacent i ...
which has a natural outlet to the west coast. Since 1983, this water has been used to generate
hydroelectric Hydroelectricity, or hydroelectric power, is electricity generated from hydropower (water power). Hydropower supplies one sixth of the world's electricity, almost 4500 TWh in 2020, which is more than all other renewable sources combined and ...
power for West Sumatra, generated around 68 MW at maximum load. Most of the people who live around Lake Maninjau are ethnically
Minangkabau Minangkabau may refer to: * Minangkabau culture, culture of the Minangkabau people * Minangkabau Culture Documentation and Information Center * Minangkabau Express, an airport rail link service serving Minangkabau International Airport (''see below' ...
. Villages on the shores of the lake include Maninjau and Bayur. Maninjau is a notable tourist destination in the region due to its scenic beauty and mild climate. It is also a site for
paragliding Paragliding is the recreational and competitive adventure sport of flying paragliders: lightweight, free-flying, foot-launched glider aircraft with no rigid primary structure. The pilot sits in a harness or lies supine in a cocoon-like 'po ...
.


Local fishing and agriculture

Two endemic species collected from the lake for local consumption and for export to markets outside the crater are ''pensi'', a species of small mussel, and ''palai rinuak'', a type of small fish. One method of preparing ''palai rinuak'' is to grill a mixture of the fish along with coconut and spices, wrapped in a banana leaf. The lake is used for
aquaculture Aquaculture (less commonly spelled aquiculture), also known as aquafarming, is the controlled cultivation ("farming") of aquatic organisms such as fish, crustaceans, mollusks, algae and other organisms of value such as aquatic plants (e.g. lot ...
, using ''karamba'' floating net cages. The technique was introduced in 1992 and, by 1997, there were over 2,000 cage units with over 600 households engaged. Each cage may have 3-4 production cycles each year. There is evidence of pollution around some ''karamba'' areas. On the edge of the lake, land use includes rice fields in the swamps and the lower slopes. The villages are bordered uphill by a large belt of forest-like tree gardens, which dissolve into the upper
montane forest Montane ecosystems are found on the slopes of mountains. The alpine climate in these regions strongly affects the ecosystem because temperatures fall as elevation increases, causing the ecosystem to stratify. This stratification is a crucial f ...
on the steepest parts of the slopes up to the ridge of the caldera. The tree gardens include three typical components: * Fruit trees including
durian The durian (, ) is the edible fruit of several tree species belonging to the genus ''Durio''. There are 30 recognised ''Durio'' species, at least nine of which produce edible fruit. ''Durio zibethinus'', native to Borneo and Sumatra, is the onl ...
,
jack fruit The jackfruit (''Artocarpus heterophyllus''), also known as jack tree, is a species of tree in the fig, mulberry, and breadfruit family (Moraceae). Its origin is in the region between the Western Ghats of southern India, all of Bangladesh, ...
,
cempedak ''Artocarpus integer'', commonly known as chempedak or cempedak, is a species of tree in the family Moraceae in the same genus as breadfruit and jackfruit. It is native to Southeast Asia. Cempedak is an important crop in Malaysia and is also popu ...
,
rambutan Rambutan (; taxonomic name: ''Nephelium lappaceum'') is a medium-sized tropical tree in the family Sapindaceae. The name also refers to the edible fruit produced by this tree. The rambutan is native to Southeast Asia. It is closely related to s ...
,
langsat ''Lansium parasiticum'', commonly known as langsat (), lanzones (), or longkong in English; duku in Indonesian or dokong in Terengganu Malay, is a species of tree in the Mahogany family with commercially cultivated edible fruits. The species ...
, golden berries and water apples. * Timber species including
Toona sinensis ''Toona sinensis'', commonly called Chinese mahogany, Chinese cedar, Chinese toon, beef and onion plant, or red toon (; hi, डारलू, d̩āralū; ms, suren; vi, hương xuân) is a species of ''Toona'' native to eastern and southeast ...
and Pterospermum javanicum. * Spice trees including
cinnamon Cinnamon is a spice obtained from the inner bark of several tree species from the genus ''Cinnamomum''. Cinnamon is used mainly as an aromatic condiment and flavouring additive in a wide variety of cuisines, sweet and savoury dishes, breakfa ...
,
coffee Coffee is a drink prepared from roasted coffee beans. Darkly colored, bitter, and slightly acidic, coffee has a stimulant, stimulating effect on humans, primarily due to its caffeine content. It is the most popular hot drink in the world. S ...
,
nutmeg Nutmeg is the seed or ground spice of several species of the genus ''Myristica''. ''Myristica fragrans'' (fragrant nutmeg or true nutmeg) is a dark-leaved evergreen tree cultivated for two spices derived from its fruit: nutmeg, from its seed, an ...
and
cardamum Cardamom (), sometimes cardamon or cardamum, is a spice made from the seeds of several plants in the genera ''Elettaria'' and ''Amomum'' in the family Zingiberaceae. Both genera are native to the Indian subcontinent and Indonesia. They are re ...
.


Sukarno's pantun

The first president of Indonesia,
Sukarno Sukarno). (; born Koesno Sosrodihardjo, ; 6 June 1901 – 21 June 1970) was an Indonesian statesman, orator, revolutionary, and nationalist who was the first president of Indonesia, serving from 1945 to 1967. Sukarno was the leader of ...
, visited the area in early June 1948. A ''
pantun ''Pantun'' ( Jawi: ) is a Malay oral poetic form used to express intricate ideas and emotions. It is generally consists of even-numbered lines and based on ABAB rhyming schemes. The shortest consists of two lines better known as the in Malay, ...
'' he wrote about the lake reads:


See also

*
List of lakes of Indonesia This is a list of the notable lakes of Indonesia. Indonesia has 521 natural lakes and over 100 reservoirs, covering approximately 21,000 km². The total volume of water held is approximately 500 km³. The largest lake, by both area an ...


References


External links

* {{DEFAULTSORT:Maninjau Lakes of Sumatra VEI-7 volcanoes Volcanic crater lakes Landforms of West Sumatra Tourist attractions in West Sumatra