Bromo Tengger Semeru National Park

Coordinates: 8°1′S 112°55′E / 8.017°S 112.917°E / -8.017; 112.917
Source: Wikipedia, the free encyclopedia.

Bromo Tengger Semeru National Park
Taman Nasional Bromo Tengger Semeru
Ministry of Environment and Forestry
Websitebromotenggersemeru.org

Bromo Tengger Semeru National Park (

Mount Semeru (3,676 meters (12,060 ft)), four lakes and 50 rivers. It is named after the Tengger tribe. The explosion of the volcano that created the caldera, happened ca. 45.000 years ago, in an event similar to the Krakatau eruption.[4]

The Tengger Sand Sea has been protected since 1919. The Bromo Tengger Semeru National Park was declared a national park in 1982.[5]

Geography

Tengger massif

Map
Interactive map of Bromo Tengger Semeru National Park

The Tengger massif is a massif within the park.[6][7] The area is an active volcanic complex surrounded by a plain of sand.

Volcanism

The volcanic complex of Tengger forms a condition where a new caldera of volcano forms inside a larger and more ancient caldera. There are five volcanoes inside the Tengger Caldera: Mount Bromo (2,329 m), Mount Batok (2,470 m), Mount Kursi (2,581 m), Mount Watangan (2,661 m), and Mount Widodaren (2,650 m). Mount Batok is the only peak that is no longer active, and is covered in casuarina (Indonesian: cemara) trees. Mount Widodaren, located beside Mount Batok, contains the cave Widodaren, which is considered sacred by local people.

The five volcanoes within the caldera are surrounded by a vast area of sand called the Tengger Sand Sea, which in turn is surrounded by a steep crater wall of the larger Tengger Caldera with height differences of about 200–600 meters (660–1,970 ft). Other mountains around the Tengger caldera are: Mount Pananjakan (2,770 m), Mount Cemorolawang (2,227 m), Mount Lingker (2,278 m), Mount Pundak Lembu (2,635 m), Mount Jantur (2,705 m), Mount Ider-ider (2,527 m) and Mount Mungal (2,480 m). The peak of Mount Pananjakan is the most popular place to watch the entire volcanic complex of Tengger.[8]

Further south in the national park, there is another volcanic complex called the Semeru Group or Jambangan Group. This area contains the highest peak of Java,

Mount Semeru (3,676 m). Other mountains within this area are Mount Lanang (2,313 m), Mount Ayek-ayek (2,819 m), Mount Pangonan Cilik (2,833 m), Mount Keduwung (2,334 m), Mount Jambangan (3,020 m), Mount Gentong (1,951 m), Mount Kepolo (3,035 m), and Mount Malang (2,401 m). The Semeru forest area has many rivers that are former lava lines from Mount Semeru. The Semeru group is considered to be very productive, producing volcanic matters such as lava, volcanic ash
, and hot cloud and spreading it to the surrounding area. The lower area is surrounded with fertile rice fields.

Climate

The climate in Bromo Tengger Semeru is cold, especially in winter from May until September. There is heavy rainfall in summer, while there is little to no precipitation in winter. Nighttime temperatures in winter commonly fall below zero degrees Celsius, with potential for

light snow. It is classified as a subtropical highland
.

Climate data for Podokoyo, Tosari, Bromo Tengger Semeru National Park (elevation 2,338 m or 7,671 ft)
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Mean daily maximum °C (°F) 16.5
(61.7)
16.7
(62.1)
16.9
(62.4)
16.7
(62.1)
16.7
(62.1)
16.1
(61.0)
15.6
(60.1)
15.8
(60.4)
16.3
(61.3)
16.9
(62.4)
16.7
(62.1)
16.6
(61.9)
16.5
(61.6)
Daily mean °C (°F) 12.8
(55.0)
12.9
(55.2)
13.2
(55.8)
12.8
(55.0)
12.6
(54.7)
11.9
(53.4)
11.1
(52.0)
11.3
(52.3)
11.7
(53.1)
12.6
(54.7)
13.1
(55.6)
12.9
(55.2)
12.4
(54.3)
Mean daily minimum °C (°F) 9.2
(48.6)
9.1
(48.4)
9.6
(49.3)
9
(48)
8.6
(47.5)
7.8
(46.0)
6.7
(44.1)
6.8
(44.2)
7.2
(45.0)
8.3
(46.9)
9.5
(49.1)
9.2
(48.6)
8.4
(47.1)
Average precipitation mm (inches) 297
(11.7)
337
(13.3)
350
(13.8)
184
(7.2)
105
(4.1)
64
(2.5)
37
(1.5)
15
(0.6)
19
(0.7)
69
(2.7)
141
(5.6)
315
(12.4)
1,933
(76.1)
Source: Climate-Data.org (temp & precip)[9]

Ecosystem

19th century map of Tengger Caldera showing several volcanoes forming within the vast Tengger Caldera

According to height and temperature differences, the forests within the area can be classified into three zones:

Sub-montane zone (750 – 1,500 m)

This zone is classified as a tropical rainforest. It can be found in the southern area of Semeru, East Semeru (Burno), and West Semeru (Patok Picis). This zone is dominated with plants of the families

Piper, Asplenium, and Begonia, and other plants from the family Araceae, Poaceae, and Zingiberaceae. There are also 225 species of orchid in this area.[10]

Montane zone (1,500 – 2,440 m)

Madakaripura Waterfall

Plant life is greatly reduced in this area. Most of the species that grow in this area are

Albizia lophantha), acacia bark (Acacia decurrens) and bottom plants such as Javanese edelweiss or senduro (Anaphalis longifongila and Anaphalis javanica), Imperata cylindrica, Pteris sp., Themeda sp. and Centella asiatica.[10]

The Tengger Sand Sea in Tengger Caldera is a special ecosystem. The area is covered in volcanic sedimentation of sand from Mount Bromo activities. The resulting area is believed to be the only known desert-like area in Indonesia. The Tengger Sand Sea has been protected since 1919.

Subalpine zone (above 2,400 m)

The flora that cover this area are mentinggi gunung (

this zone
.
[10]

On Mount Semeru, there is no plant life above the altitude of 3,100 m. This zone is covered in loose sandstones.[10]

Flora and fauna

Some endangered flora are protected in this park, such as

Culture

The area in and around the park is inhabited by the

Madurese
in the 19th century.

Gallery

  • Gunung Bromo sunrise
    Gunung Bromo sunrise
  • Tengger Caldera at sunrise
    Tengger Caldera at sunrise

See also

References

  1. ^ Forestry statistics of Indonesia 2007 Archived July 22, 2011, at the Wayback Machine, retrieved May 20, 2010
  2. ^ a b c d "Ministry of Forestry: Bromo Tengger Semeru National Park". Archived from the original on March 23, 2010. Retrieved January 3, 2010.
  3. ^ "Global Volcanism Program: Mount Semeru". Retrieved June 12, 2017.
  4. ^ "Bromo Volcano (Tengger Caldera)".
  5. ^ Letter of Statement of the Agrarian Minister No.736/Mentan/X/1982
  6. ^ "The dark, otherworldy landscapes of Tengger Massif, Indonesia". When on Earth. Retrieved September 10, 2015.
  7. ^ "Indonesia's mountains of fire". Lonely Planet. June 2, 2011. Retrieved September 10, 2015.
  8. ^ "Bromo Tengger Semeru National Park". Eastjava Department of Tourism, Art and Culture Service. May 26, 2015. Retrieved January 1, 2010.[permanent dead link]
  9. ^ "Climate: Podokoyo". Climate-Data.org. Retrieved March 22, 2019.
  10. ^ a b c d "Biological Conditions". Bromo Tengger Semeru National Park. Eastjava Department of Tourism, Art and Culture Service. Retrieved January 1, 2010.
  11. ^ "Flora and Fauna". Bromo Tengger Semeru National Park. Eastjava Department of Tourism, Art and Culture Service. Retrieved January 1, 2010.

External links