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Journal : Jurnal technoscientia

CADANGAN SUMBERDAYA AIR UNTUK MENUNJANG PENGEMBANGAN WILAYAH KABUPATEN TASIKMALAYA Hartanto, Priyo; Suriadarma, Ade; -, Saifudin
JURNAL TEKNOLOGI TECHNOSCIENTIA Technoscientia Vol 3 No 1 Agustus 2010
Publisher : Lembaga Penelitian & Pengabdian Kepada Masyarakat (LPPM), IST AKPRIND Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (886.181 KB) | DOI: 10.34151/technoscientia.v3i1.440

Abstract

Tasikmalaya District occupied the area of 2.680,47 km2 and located on the elevation between 0 to 3,000 m above sea level with hilly, highland, and slopy morphology. Dry month occurred on August, while wet months occurred on the period of September to July. The average monthly precipitation is ranged between 92 – 320 mm with total of yearly precipitation 2,532 mm. The monthly precipitation is ranged between 96 – 116 mm, with total of yearly evapotranspiration about 1,307 mm. Water reserves in Tasikmalaya District is ranged between 23 to 207 mm, covering in the area of 2,680.5 km2, then total of reserved water is 1,306,515 m3 to 11,758,655 m3. Water for domestic needs is 222.150 m3/day. 169.805 m3/day excess water can be used for approximately 117.920 hectares agriculture or approximately 393.067 hectares of land crops.
EVALUASI KUALITAS DAN KETERSEDIAAN AIR PULAU KARIMUNJAWA-KEMUJAN KEPULAUAN KARIMUNJAWA, KABUPATEN JEPARA Hartanto, Priyo; S, I. Hadi
JURNAL TEKNOLOGI TECHNOSCIENTIA Academia Ista Vol 12 No 01 Agustus 2007
Publisher : Lembaga Penelitian & Pengabdian Kepada Masyarakat (LPPM), IST AKPRIND Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (583.679 KB) | DOI: 10.34151/technoscientia.v0i0.1992

Abstract

Karimunjawa islands became an important area since it decided as a part of Karimunjawa National Park area so that become an area of tourism on the base sea resources. From morphogenetic point of view, Karimunjawa-Kemujan Islands is an petabah type islands, which is characterized by the wide about 20,8 km2 and 11,4 km2, and it can be classified as a small islands. Lithologically, these islands consists of sandstone, sandstone interbaded, clay, metamorphic and granitic rocks. The avarage of annual rain up to 3120 mm with total of rain days for a year is 114 days, so that water resources Island in Karimunjawa-Kemujan are very limited. Shallow groundwater zone with limited potensial and locally distributed in plain morphology can be get at less then 10 meters in depth. In general, the water quality in Karimunjawa-Kemujan islands still good as the standard of drinking water. From this research, the groundwater in Karimunjawa island can be grouped to 3 zones which it based on Electrical Conductivity values that are: (a) zone of 1054-2250 mS/cm, (b) zone of 100-1000mS/cm and zone of 57-59,6 mS/cm. In the other, EC value of water in Kamujan island generally is less than 100 mS/cm.