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INDONESIA
Jurnal Hidrosfir Indonesia
Published by Badan Pengkajian dan Penerapan Teknologi
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Articles 128 Documents
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PENGELOLAAN DAS DENGAN PENDEKATAN EKOSISTEM: STUDI KASUS ANALISIS DEBIT SUNGAI BONE DAN BOLANGO DI KABUPATEN BONE BOLANGE, PROPINSI GORONTALO Tresnadi, Hidir
Jurnal Hidrosfir Indonesia Vol 3, No 3 (2008)
Publisher : Jurnal Hidrosfir Indonesia

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Abstract

Water resources should be managed integratively in the term of forestry, agriculture, social economy, conservation and civilian. Bone-Bolango Regency, in the center, eastern and western part, passed by Bone dan Bolango Rivers. The upstream area of Bone and Bolango Rivers is Nani Wartabone national conservation forest. The watershed of Bone and Bolango Rivers are located among Bone Bolango, Gorontalo, Limboto, and Gorontalo Major region in the Gorontalo Province, meanwhile in thelarger system, they have share watershed to the North Sulawesi Province.Until now the watershed of Bone-Boelango is managed by Balai Pengelolaan DAS Boen Bolango, whereas groundwater resources develepment managed by P2AT, and local stakeholders such as Dinas Kimpraswil Tingkat I Propinsi Gorontalo and Dinas Kimpraswil Pemda Tingkat II Kabupaten Bone Bolango. The analysis of the annual debit of Bone and Bolango Rivers show that the trend of the average debit ratio to theminimum debit of the same year show gradually higher than dan before because of the deforestration of Bone and Bolango Rivers in the upstream of the rivers. So we have to manage the DAS of Bone and Bolango Rivers by the ecosistem approach to improve the deterioration of the the rivers.
Impact of Land Surface Run Off On The Water Quality At Batam Mariculture Area Sachoemar, Suhendar I.
Jurnal Hidrosfir Indonesia Vol 2, No 3 (2007)
Publisher : Jurnal Hidrosfir Indonesia

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Abstract

An impact of the land surface run off on the water quality was observed at Batam Mariculture Estate during the flood tide of the Southeast Monsoon. The existing of land surface run off was significantly identified on the increasing of the turbidity as well as total suspended solid (TSS) concentration in the nearby of the upper eastern part of the shoreline and it spread up to the southern part driven by surface current. As consequence, the water quality was degraded, particularly on the water transparency. The land surface run off was also increasing the phosphate concentration that stimulated and promoted on the increasing of the chlorophyll-a and dissolve oxygen (DO). But the nitrogen compound (nitrate and nitrite), and silicate were not affected.Keywords: Land surface run off, water quality, Batam Mariculture Estate
PENURUNAN PERMUKAAN AIR DANAU ANEUK LAOT DI PULAU WEH PROPINSI NANGROE ACEH DARUSSALAM Edyanto, CB Herman
Jurnal Hidrosfir Indonesia Vol 3, No 1 (2008)
Publisher : Jurnal Hidrosfir Indonesia

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Abstract

One of the main duties of the Local Government of Sabang was the preparation of fresh water for the people which is supplied from the lake of Aneuk Laot in WehIsland. The problem concerning with this lake is that the water level become decreasing significantly. Earthquake in a big scale which was occured in the year of 2004 was pointed at the causal factor to enlarge breaking residing in lake base. To find the answer of it, therefore, should be met.
PELUANG UNTUK MENGURANGI BAHAYA KEBAKARAN Taufik, Muhammad; Setiawan, Budi I; Prasetyo, Lilik B; Pandjaitan, Nora H; suwarso, suwarso
Jurnal Hidrosfir Indonesia Vol 5, No 2 (2010)
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Abstract

Efforts to anticipate and overcome fire occurrence in wetland wood industries are not effective to reduce fire occurrence in dry season. This paper presents our research in Sebangun Bumi Andalas Wood Industries (SBAWI), South Sumatra that aims to (a) find effective water table depth to reduce fire danger, and (b) propose forest management schemes based on water management to reduce fire danger. We monitored daily rainfall, air temperature, and water table depth for period of 1 April 2009 to 11 May 2010 for data input to our model. Fire danger rating was assessed using KBDI model that have been modified to meet local condition of SBAWI, South Sumatra. The results showed that KBDI reached extreme level in August and September 2009 when rainfall was low. Using an analysis of time intensity curve (TI curve) of KBDI, we obtained KBDI onset rate was 12/day. Critical water table depth that is able to reduce KBDI value was 0.66m. The more water table depth than this value, the more KBDI value was. The onset rate was used as basis for water management option to maintain water table depth less than the critical value. Several water management options were described in this paper based on fire danger level and season.
PEMUTIHAN TERUMBU KARANG Santoso, Arif Dwi
Jurnal Hidrosfir Indonesia Vol 1, No 2 (2006)
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Abstract

Corral reef in Indonesia is one of the ecosystem would be heavily damagedas same as a rain forest ecosystem. The main source of damage come fromhuman activities as land base pollution activity and un-wise fishing.Meanwhile, above problem didn’t solve clearly, The potencial threat hasbeen occured. Corral reef has bleach since climate change occur in the fewdecades. This article showed about what is corral reef bleacing, what is themain problem and how to conserve it.
PENERAPAN TEKNOLOGI TERUMBU BUATAN DI PERAIRAN LAUT PULAU ABANG, BATAM Setiawan, Iwan Eka
Jurnal Hidrosfir Indonesia Vol 4, No 2 (2009)
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Abstract

The application of artificial reef technology has been done on Abang Island, Batam were conducted on Juni-October 2007. The research objectives are to enhance the fish population and rehabilitate marine environment in Abang island waters. The activities are particularly in assessment site selection survey for development the artificial reef, contruction and deployment of 10 unit the artificial reef at the selected sites. Parameter measured were: bathymetri, water quality aspects, current and sedimentation.The results of the assessment for marine environment condition have seen the water qualities such as temperature, salinity, dissolved oxygen in the normal condition and they conduct as not as unlimited factors for artificial reef program. In other hand, the assessment of sea bed morphology have seen homogen marine topography with slope slightly, the dominant of sediment seabed is sandy beach. The deployment sites have to be selected at 3 positions are surrounded 0o 30’28.47” N ; 104o 16’ 5.55” E, range 20-25 meter and calm waters (low current flows).
PENENTUAN KONSENTRASI KHLOROFIL-α SEBAGAI INDIKATOR KUALITAS PERAIRAN WADUK SAGULING Komarawidjaja, Wage
Jurnal Hidrosfir Indonesia Vol 3, No 3 (2008)
Publisher : Jurnal Hidrosfir Indonesia

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Abstract

Saguling reservoir is one of reservoir located in West Java Province. This reservoir primarily was planned for single purpose to generate the electricity. Water quality in this reservoir is depends on the water quality of Citarum River which have face significant change because of the increased of land use along Citarum River basin. Parameter that tends to increased as well as measured at Saguling reservoir in this study is pH, turbidity and Chlorophyll-α. These results are higher than the permissible limit (PP 82/2001). Its mean that Saguling reservoir water quality is worst, and based on chlorophyll-α contained > 10 μg/L is called as eutrophic waters
Pola Arus di Perairan Teluk Hurun Lampung Selatan Riyadi, Agung
Jurnal Hidrosfir Indonesia Vol 2, No 2 (2007)
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Abstract

We observed the current data in Hurun Bay, South Lampung Sumatra Hurun Bay is a small semi enclosed bay with areas up to 1.5 km2 and has four mouth river. Measuremet field around one year from Januari 2003 until Januari 2004. The two current sensor located at central of the bay and the sensor take a depth about four (4) and twelve (12) meter from surface.The continous current record indicated that the current in Hurun Bay relative small. The current velocity at June is higher and have a average value 3.98 cm/second at 4 meter and 3.94 cm/second at 12 meter from surface and commonly current velocity in bay under 50 cm/second. Keywords: pattern flow, teluk hurun, current velocity 
FLUKTUASI GENANGAN AIR LAHAN RAWA LEBAK DAN MANFAATNYA BAGI BIDANG PERTANIAN DI OGAN KOMERING ILIR Waluyo, Waluyo; Suparwoto, Suparwoto; Sudaryanto, Sudaryanto
Jurnal Hidrosfir Indonesia Vol 3, No 2 (2008)
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Abstract

Research on Lebak (fresh water) convered 100 hectars that has been conducted at Tanjung Alai, Ogan Komering Ilir district South Sumatera. This research consist of land characteristics, type and properties of Lebak, particularly zonification of Lebak type, length and hight of flooding which determined Lebak zone, fluctuation of flooding, crop scheduling of rice and soybean. Main problem of Lebak were hight flooding in the wet season and drought in the dry season on the long flooding condition it do not able to be planted cash crops. Result showed that research site can be divided into 3 type of Lebak; first, shallow Lebak has average hight flooding –97 cmto 55 cm, length flooding period 5 months and time schedule of planting since January up to May and June until Oktober; second, medium Lebak has average hight flooding – 50 cm to 100 cm, 9 months flooding period, and time schedule of planting since February up to June and Juli until November; third, deep Lebak has average hight flooding –32 cm up to 140 cm, 10 months flooding period and time schedule of planting since Januari up to June and Juli until November.
UPAYA PENINGKATAN EFISIENSI PEMANFAATAN AIR EMBUNG DI NTT: STUDI KASUS EMBUNG OEMASI - KUPANG Widiyono, Wahyu
Jurnal Hidrosfir Indonesia Vol 5, No 3 (2010)
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Abstract

Effort to increase water used efficiency is one of the important aspect in the integrated embung management. The others are watershed and water storage management. Water used efficiency related, the first problem is how to deliver water from the embung storage to the water utilization area (village); and the second problem is how to use water for people consumption, cattle feeding and plant irrigation efficiently. Since theOemasi embung was built in 1991/1992 untill in 2010 some aspects were developed related to the increasing of people population in this area, i.e. developing of water tanks for people water consumption, cattle and irrigation; application of water used efficiency for cultivation of horticulture plants by using polybag potting system; and pipe network rehabilitation programme. The Oemasi embung problem and solution during the 20years of embung maintainance are the very valuable experience that can be used as a case study to manage 333 embungs that were built in the East Nusa Tenggara Province.

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