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3 CHAPTER III
BUPER WATERSHED DESCRIPTION
3.1 Location
Position of the Buper watershed is between Jayapura City and Jayapura Regency, included in Province of Papua. It is also in the area of Mamberamo-Tami-Apauwer River
Basin DPU, 2010. Mamberamo-Tami-Apauwer River Basin is located between coordinates 136°21- 140°49 E and 1°27- 44°32 S, where all the rivers in this river basin
flow into the Pacific Ocean except Kampwolker and Buper River which empties into Lake Sentani Bappeda Papua, 2006. Buper Watershed has an area of 14.335 km
2
based on the analysis that has been done by DPU in 2010.
Figure 3.1 Location of Buper Watershed
Jayapura City has an area of 940 km
2
. It is located at 1 2700- 3
4900 South and 137
2700- 141 4100 East. Jayapura city consists of 5 districts namely Abepura District,
South Jayapura District, Jayapura District, North Jayapura District and Heram Muara Tami
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District. The population of Jayapura in 2008 is 256,705 person. Population density is 254 people km
2
Population growth is 14,28 . Jayapura City is also Capital of Papua Province BPS Jayapura City, 2011.
Regency of Jayapura has an area of 17.516 km
2
. Regency of Jayapura is located at 129
o
00‘16‖ – 141
o
01‘47‖ E dan 2
o
23‘10‖ N – 9
o
15‘00‖ S. Regency of Jayapura consists of 19 districts. The population of Jayapura Regency in 2011 is 111.943 person. Population
density is 7,05 people km
2
. Population growth is 10,69 BPS Jayapura Regency, 2011.
3.2 Characteristics Climate, Topography and Groundwater Basin
Preciptation around Buper Watershed is 1951 mmyear, with the average of rainy days is 148 daysyear. Maximum average of air temperature is 31,7°C and minimum
average of air temperature is 23.5°C. Average humidity is 82, average wind speed is 8,2 knot, and solar shines are 40,5 BMKG, 2011.
Buper watershed has a hilly topography with a height of 205 - 1300 MSL. Buper Watershed has an average slope in the upstream of 5 and an average slope in the
downstream areas of 20. In the downstream of the Buper Watershed there is a retention throughout the year.
Figure 3.2 Description of Buper Watershed Buper watershed is not included in the area of groundwater basin where there is no
potential for groundwater that can be utilized. Therefore the characteristics of the non- groundwater will greatly affect Buper Watershed especially in terms of water resources
availability DPU, 2010.
3.3 Landscape and Infrastructure
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