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Jurnal Penelitian Pengelolaan Daerah Aliran Sungai
ISSN : 25795511     EISSN : 25796097     DOI : -
Core Subject : Agriculture,
Jurnal Penelitian Pengelolaan Daerah Aliran Sungai (JPPDAS) ) is an official publication that publishes scientific papers of research results in the field of watershed management. This Journal was published primarily by Watershe Management Technology Center on April 2017. Journal scopes include are land and vegetation management, soil and water conservation, land rehabilitation, hydrology, social, economic, institutional, remote sensing and Geographic Information Systems (GIS) that support watershed management technologies.
Arjuna Subject : -
Articles 6 Documents
Search results for , issue " Vol 1, No 2 (2017): Jurnal Penelitian Pengelolaan Daerah Aliran Sungai" : 6 Documents clear
PENGARUH PERLAKUAN MULSA BATANG JAGUNG DAN STRIP PENGUAT TERAS TERHADAP LIMPASAN PERMUKAAN, EROSI DAN HASIL USAHA TANI (Application effect of corn stem mulch and strengthened terrace strips toward runoff, erosion and farm yield) Suyana, Jaka; Muliawati, Endang Setia; Lestariningsih, Nanik Puji
Jurnal Penelitian Pengelolaan Daerah Aliran Sungai Vol 1, No 2 (2017): Jurnal Penelitian Pengelolaan Daerah Aliran Sungai
Publisher : Balai Penelitian dan Pengembangan Teknologi Pengelolaan DAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (846.384 KB) | DOI: 10.20886/jppdas.2017.1.2.127-141

Abstract

A Soil and Water Conservation (SWC) technology is site-specific to the conditions of local farmers. Field trials treatment of crop residue mulch and strengthened terrace strips has been done on dryland farming in Upper Solo and Keduang Sub Watersheds. The results showed: 1) corn + cassava + traditional terrace in Upper Solo Sub Watershed with treatments of: a) 8 ton/ha corn stems mulch and Setaria Grass strip (0-5 months) to strengthen terraces could decrease run off (16.3%) and erosion (31.2%), b) 8 ton/ha corn stems mulch combined with Jali strip decreased run off (11.3%) and erosion (26.9%), and c) 8 ton/ha corn stems mulch combined with Akar Wangi strip decreased run off (10.2%) and erosion (25.9%); and 2) cabbage, red lentils/red bean, and white lentils in Keduang Sub Watershed with treatments of: a) mulching of 12 ton/ha corn stems combined with Kolojono Grass strip (0-4 months) to strengthen terraces decreased run off (4.5%) and erosion (15.5%), b) mulching 8 ton/ha corn stems combined with Akar Wangi strip decreased run off (4.0%) and erosion (14.4%), and c) mulching 4 ton/ha corn stems combined with Jali strip decreased run off  (2.4%) and erosion (13.3%). Giving of 12 ton/ha corn stems mulch could increase yield of cabbage (31.2%), red bean (40.3%), and white lentils (14.5%).
PERAN CEMARA LAUT (Casuarina equisetifolia) DALAM PERBAIKAN IKLIM MIKRO LAHAN PANTAI BERPASIR DI KEBUMEN (The role of Casuarina equisetifolia on micro climate improvement of sandy beach land at Kebumen) Harjadi, Beny
Jurnal Penelitian Pengelolaan Daerah Aliran Sungai Vol 1, No 2 (2017): Jurnal Penelitian Pengelolaan Daerah Aliran Sungai
Publisher : Balai Penelitian dan Pengembangan Teknologi Pengelolaan DAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (866.801 KB) | DOI: 10.20886/jppdas.2017.1.2.73-81

Abstract

Sandy beach is a marginal land, when it is not managed properly the conditions will be worsened and at the end it cannot be planted. This marginal land is aggravated by unfavorable conditions such as extreme high temperatures, the presence of salt vapor that causes the plants to die, and the lacking of water for plants. With regard to this matter, it is necessary to conduct a research that aims to determine the role of Casuarina equisetifolia  in improving the microclimate of sandy beaches. The research was conducted on sandy beaches in Karanggadung, Petanahan Subdistrict, Kebumen since 2005, with climate observations from 2009 to 2014. The climate observation method is by measuring light, air temperature, humidity, air pressure and altitude. Each measurement used three repetitions for each location and measured twice a day: 07.00 and 16.00. The results showed that the existence of C. equisetifolia gave a positive effect on micro climate improvement at Karanggadung Beach, Kebumen which included: 1) decreasing light intencity from 1925 lux to 213 lux, 2) decreasing air temperature from 31 °C to 25 °C, 3) increasing  air humidity from 84% to 100%, 4) increasing air pressure from 1007 mb to 1008 mb, and 5) increasing sand dune level from 27 m ASL (Above Sea Level) to 35 m ASL.
TIPOLOGI DAERAH ALIRAN SUNGAI UNTUK MITIGASI BENCANA BANJIR DI DAERAH ALIRAN SUNGAI MUSI Pramono, Irfan Budi; Putra, Pamungkas Buana
Jurnal Penelitian Pengelolaan Daerah Aliran Sungai Vol 1, No 2 (2017): Jurnal Penelitian Pengelolaan Daerah Aliran Sungai
Publisher : Balai Penelitian dan Pengembangan Teknologi Pengelolaan DAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (953.511 KB) | DOI: 10.20886/jppdas.2017.1.2.143-165

Abstract

The cause of flood problems could be identified from problems that happened in the  catchment area as flood water discharge and flooded  or inundation area. The objective of this study is to identify the degree of flood vulnerability, both flood water discharge and flooded area, as a basis of flood mitigation at the Musi Watershed. Method applied on this study is the watershed typology formula developed by Watershed Management Technology Centre (WMTC) for identifying flood vulnerability based on land system, land cover, and maximum daily rainfall. Degree of flood vulnerability is differentiated into five categories. Musi Watershed was divided into 14 sub watersheds and each sub watershed is identified its degree of vulnerability on flood water discharge and area of flooded area. Based on these values the rank of sub watershed to its degree of degradation could be generated. The result showed that Komering and Deras Sub Watersheds were vulnerable to flood due to their nature. Ogan and Upper Musi Sub watersheds were the source of flood due to different caused by high rainfall, while Upper Musi was generated by high land vulnerable. The mitigation program in the flood prone area is complicated since Deras Sub Watershed was the accumulation of many downstream sub watersheds. Mitigation program in the discharge area could be done in Upper Musi Sub Watershed, since it has the highest vulnerability. Upper Musi is also the upstream of Deras Sub Watershed.
DAERAH BAHAYA BANJIR DI SUB DAERAH ALIRAN SUNGAI SEPAUK DAN TEMPUNAK, KABUPATEN SINTANG, PROVINSI KALIMANTAN BARAT (Flood hazard in Sepauk and Tempunak Sub Watersheds, Sintang Regency, West Kalimantan Province) Auliyani, Diah
Jurnal Penelitian Pengelolaan Daerah Aliran Sungai Vol 1, No 2 (2017): Jurnal Penelitian Pengelolaan Daerah Aliran Sungai
Publisher : Balai Penelitian dan Pengembangan Teknologi Pengelolaan DAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (782.942 KB) | DOI: 10.20886/jppdas.2017.1.2.83-95

Abstract

Flood-prone areas mapping is often constrained by limited data availability at the site level. A quick assessment of sub watershed degradation method can be used to identify the degradation level of a sub watershed includes the flood hazard areas. This method is very easy to be applied at a site level using Geographic Information System (GIS), although it has minimum data. The aim of this study was to analyze the level of flood hazard in Sepauk and Tempunak Sub Watersheds, Sintang Regency, West Kalimantan Province. The required data were DEM/ SRTM (Digital Elevation Model/ Shuttle Radar Topography Mission), daily rainfall, and land cover. Quick assessment of sub watershed degradation method was applied to classify the flood-prone level of the study areas. The results showed that most of the study areas were categorized as high level of flood hazard (78% for Sepauk and 56% for Tempunak). The land covers of those areas were dominated by mixed dryland agriculture, bare land, and settlements. In addition, high level of flood hazard areas in Sepauk Sub Watershed was also affected by the existence of mining and dryland agriculture areas. Since the land cover change is a dynamic process, the flood hazard areas mapping should also be adjusted continuously to minimize the flood impact.
ANALISIS BANJIR CIMANUK HULU 2016 (Upper Cimanuk flood analysis of 2016) Savitri, Endang; Pramono, Irfan Budi
Jurnal Penelitian Pengelolaan Daerah Aliran Sungai Vol 1, No 2 (2017): Jurnal Penelitian Pengelolaan Daerah Aliran Sungai
Publisher : Balai Penelitian dan Pengembangan Teknologi Pengelolaan DAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (906.081 KB) | DOI: 10.20886/jppdas.2017.1.2.97-110

Abstract

The causes of floods can vary, but they are rarely caused by only one factor. The purpose of this research is to find the cause of flood that hit Garut City on 20 September 2016. The method used is flood water supply analysis and flooded area analysis which is developed by WMTC Solo. The results showed that the water supply in the Upper Cimanuk watershed was very high due to high rainfall the day before (110 to 255 mm /day), high antecedent soil moisture (35 to 44 mm), very vurnerable (52%) land condition on Upper Cimanuk watershed due to land use that was not in accordance with its ability and forest area which only 17.9% of the watershed area. Based on the analysis of flooded areas, which was flat area around the river were identified as prone areas to flood such as Garut, South Tarogong and Cilawu. The flood potential in the Upper Cimanuk watershed can be reduced by changing the land use pattern on the very sloping land from vegetable farming to agroforestry, reforestation, and applying soil conservation practices. For flooded areas the reduction of flooding can be conducted by increasing the drainage channel, building infiltration wells and dykes along the river and managing the riparian.
KONDISI LINGKUNGAN DAN KARAKTERISTIK SOSIAL BUDAYA UNTUK PENGELOLAAN DAERAH ALIRAN SUNGAI (Studi Kasus pada Suku Dani di Jayawijaya, Papua) (Environmental conditions and socio-cultural characteristics for watershed management (Case study at Dani tribe, Jayawijaya, Papua)) Hastanti, Baharinawati W.
Jurnal Penelitian Pengelolaan Daerah Aliran Sungai Vol 1, No 2 (2017): Jurnal Penelitian Pengelolaan Daerah Aliran Sungai
Publisher : Balai Penelitian dan Pengembangan Teknologi Pengelolaan DAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (766.665 KB) | DOI: 10.20886/jppdas.2017.1.2.111-126

Abstract

Upper of Mamberamo watershed located at Jayawijaya regency, a plain (valley) in Jayawijaya mountains, that known as the Baliem valley.  In this valley lies Tariratu river (Idenburg river) which is a tributary of Mamberamo river. Dani tribe, the oldest tribe inhabits this fertile region. In addition to known as belligerent, Dani tribe known as swidden farmers with certain traditional wisdom to maintain the soil fertility. Environmental condition and socio-cultural characteristics community in managing the upper watershed influence the watershed management, especially in the downstream. This study aims to determine the environmental and socio-cultural characteristics of the Dani tribe in managing the natural resources in the upper watershed to support Mamberamo watershed management. This study was conducted at Wamena, Jayawijaya regency, Papua province. This research is qualitative descriptive research. Data collections was conducted by interviews and literature studies. The data were analysed qualitatively and described the environmental conditions and socio-cultural characteristics of people in the upper watershed of Mamberamo or Baliem watershed is the major element in the management of the Mamberamo watershed. The upper watershed has a conservation function to reduce land degradation. The Dani tribe in the upper Mamberamo has local wisdoms that support the vegetation, soil and water conservation’s function.  

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