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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.
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Search results for , issue "Vol 2, No 2 (2018): Jurnal Penelitian Pengelolaan Daerah Aliran Sungai (Journal of Watershed Managem" : 6 Documents clear
KERENTANAN SOSIAL EKONOMI DAN BIOFISIK DAERAH ALIRAN SUNGAI SOLO (Socio-economic and biophysical vulnerability of Solo Watershed) Nur Ainun Jariyah; Irfan Budi Pramono
Jurnal Penelitian Pengelolaan Daerah Aliran Sungai (Journal of Watershed Management Research) Vol 2, No 2 (2018): Jurnal Penelitian Pengelolaan Daerah Aliran Sungai (Journal of Watershed Managem
Publisher : Center for Implementation of Standards for Environmental and Forestry Instruments Solo

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1036.492 KB) | DOI: 10.20886/jppdas.2018.2.2.89-110

Abstract

ABSTRACTIncreasing degradation of watershed ecosystem is a problem that needs to be resolved. Therefore, a study was conducted in order to determine the socio-economic and biophysical vulnerability of Solo watershed in relation to watershed management. This research was conducted in Solo Watershed. The collected data include primary and secondary data. The potential and vulnerability of socio-economic and biophysical were evaluated using the The Formulation of Watershed level Characterization System. The results of the study showed that (1) the socio-economic of the whole Solo watershed classify as moderate category, with the highest vulnerable district was Wonogiri due to high population density and high land vulnerability, (2) land vulnerability for the whole Solo watershed is in the medium category, with the most vulnerable land category was in Madiun and upstream Solo sub-watersheds, (3) the most prominent flood vulnerability was in the downstream of Solo sub-watershed, (4) the typology of watershed management was classified as high vulnerable because the territorial typology was in the very high vulnerable and the watershed typology was medium vulnerable. By knowing its vulnerability level, the rehabilitation program can be directed to areas with a high level of vulnerability.Keywords: socio-economic; biophysical; vulnerability; watershed management ABSTRAKKerusakan ekosistem Daerah Aliran Sungai (DAS) yang semakin meningkat merupakan permasalahan yang perlu diselesaikan. Oleh karena itu telah dilakukan penelitian yang bertujuan untuk mengetahui kerentanan sosial ekonomi dan biofisik Daerah Aliran Sungai (DAS) Solo dalam kaitannya dengan pengelolaan DAS. Penelitian ini dilaksanakan di wilayah DAS Solo. Data yang diambil meliputi data primer dan sekunder. Potensi dan kerentanan sosial ekonomi serta biofisik dievaluasi dengan menggunakan formulasi Sistem Karakterisasi Tingkat DAS (Tipologi DAS). Hasil penelitian menunjukkan bahwa (1) tipologi sosial ekonomi keseluruhan DAS Solo termasuk dalam kategori sedang dengan kabupaten yang sangat rentan adalah Wonogiri yang dipicu oleh kepadatan penduduk dan kerentanan lahan yang tinggi, (2) kerentanan lahan di DAS Solo secara menyeluruh termasuk dalam kategori sedang dengan tingkat kerentanan lahan yang paling tinggi di Sub DAS Kali Madiun dan Solo Hulu, (3) kerentanan banjir paling tinggi di Sub DAS Solo Hilir, (4) tipologi pengelolaan DAS Solo secara keseluruhan termasuk dalam kategori kerentanan tinggi karena tipologi kewilayahan termasuk dalam kategori kerentanan sangat tinggi dan tipologi DAS termasuk dalam kategori kerentanan sedang. Dengan mengetahui tingkat kerentanan suatu DAS maka kebijakan program rehabilitasi dapat diarahkan ke daerah-daerah yang mempunyai tingkat kerentanan yang tinggi.Kata kunci: sosial ekonomi; biofisik; kerentanan; pengelolaan DAS
IDENTIFIKASI DAN MITIGASI KERENTANAN KEKERINGAN DAS MOYO (Identification and mitigation of drought vulnerability in Moyo Watershed) Endang Savitri; Irfan Budi Pramono
Jurnal Penelitian Pengelolaan Daerah Aliran Sungai (Journal of Watershed Management Research) Vol 2, No 2 (2018): Jurnal Penelitian Pengelolaan Daerah Aliran Sungai (Journal of Watershed Managem
Publisher : Center for Implementation of Standards for Environmental and Forestry Instruments Solo

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1235.724 KB) | DOI: 10.20886/jppdas.2018.2.2.173-187

Abstract

ABSTRACTDrought identification is needed as a baseline for its mitigation. Several drought identification methods are available, but they need to be tested in dry climates. The purpose of this study was to identify dry area and its mitigation in Moyo Watershed, West Nusa Tenggara Province. Paimin and Syarif methods were used in the study. The results showed that the Paimin method produced a uniform vulnerability map, which was "medium vulnerable" for the entire watershed. This is because the applied parameters only have one class for the entire watershed. The Syarif method provides more variable results because the parameters produce several classes of vulnerabilities. However, the later method has a weakness in applying the depth of groundwater. Moyo watershed only had one class, whereas the depth of the groundwater level varied from 4 to 11 m in the dry season. The two methods produced the same results and there were classified as “medium susceptible” for Moyo watershed. For dry areas, it is necessary to reclassify the drought class of each parameter. By combining the two methods above, it is expected to obtain more accurate results. To get the Water Use Index parameter efficiently, the number of population and water usage should be more efficient. Extentions to the community about the effectively water usage is important. Adaptation to drought can also be done by making reservoirs and setting cropping patterns.Keywords: drought; vulnerability; mitigationABSTRAKIdentifikasi kekeringan diperlukan sebagai data dasar untuk mitigasi bencana kekeringan. Beberapa metode identifikasi kekeringan telah tersedia. namun perlu diujicobakan di daerah beriklim kering. Tujuan penelitian ini adalah identifikasi dan mitigasi kekeringan di DAS Moyo, Propinsi Nusa Tenggara Barat. Metoda yang digunakan dalam studi ini adalah metode Paimin dan Syarif. Hasil penelitian menunjukkan bahwa metoda Paimin menghasilkan peta kerentanan yang seragam, yaitu “agak rentan” untuk seluruh DAS. Hasil ini disebabkan karena parameter yang digunakan hanya mempunyai satu kelas untuk seluruh DAS. Metode Syarif memberikan hasil yang lebih bervariasi karena parameter yang digunakan untuk DAS Moyo menghasilkan beberapa kelas kerentanan. Namun metode ini mempunyai kelemahan dalam menerapkan kedalaman muka air tanah. Di DAS Moyo hanya mempunyai satu kelas, padahal kedalaman muka air tanah bervariasi dari 4 sampai 11 m pada musim kemarau. Kedua metoda yang digunakan menunjukkan hasil yang sama, yaitu kelas kerentanan kekeringan di DAS Moyo adalah “sedang” (metoda Syarif) atau “agak rentan” (metoda Paimin). Agar metode-metode tersebut cocok untuk daerah kering maka kelas kekeringan dari setiap parameter perlu di-reklasifikasi lagi. Dengan mengkombinasikan kedua metoda di atas diharapkan akan diperoleh hasil yang lebih baik. Pada parameter IPA, yang dapat dimodifikasi adalah jumlah penduduk dan penggunaan air yang lebih efisien. Pemanfaatan air secara efisien dapat dilakukan melalui penyuluhan kepada masyarakat. Adaptasi kekeringan dapat juga dilakukan dengan pembuatan embung dan tandon air serta pengaturan pola tanam.Kata kunci: kekeringan; kerentanan; mitigasi
KELEMBAGAAN MITIGASI KEKERINGAN DI KABUPATEN GROBOGAN (Institution of drought mitigation in Grobogan Regency) Faiqotul Falah; Purwanto Purwanto
Jurnal Penelitian Pengelolaan Daerah Aliran Sungai (Journal of Watershed Management Research) Vol 2, No 2 (2018): Jurnal Penelitian Pengelolaan Daerah Aliran Sungai (Journal of Watershed Managem
Publisher : Center for Implementation of Standards for Environmental and Forestry Instruments Solo

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (654.029 KB) | DOI: 10.20886/jppdas.2018.2.2.151-172

Abstract

ABSTRACTDrought that occurs almost every year in Grobogan Regency should be anticipated and mitigated by all stakeholders. This paper aims to review the institutional aspects on drought mitigation in Grobogan, as a source to develop a policy on drought mitigation. The data were collected through literature review, structured interviews, and focus group discussion. The data analysis was conducted qualitatively using analysis matrixes of policies’ content, stakeholders’ roles, and institutional capabilities. This study showed that : 1) The government of Grobogan Regency had issued six regulations related to general disaster mitigation and strategy of drinking water supply, but no spesific regulation on drought mitigation issued yet; 2) there is no database on the losses caused by drought and no information about potential water source locations in Grobogan Regency; 3) there are no master plans to anticipate and mitigate drought disasters; and 4) a Disaster Response Forum and Drinking Water & Environmental Health Working Group have been established, but not specifically dealing with drought. The required steps to mitigate drought in Grobogan are: 1) Establishment of Drought Mitigation Forum; 2) Preparation of drought information database including identification of new water sources and water conservation technology; 3) Preparation of Drought Mitigation Master plan; and 4) Drafting and establishing local regulations on water utilization, protection and utilization of springs, and drought mitigation system.Keywords: drought; institution; mitigation; master plan ABSTRAKKekeringan yang terjadi hampir setiap tahun di Grobogan seharusnya dapat diantisipasi dan dikurangi dampak negatifnya secara bersama oleh semua pihak yang terkait. Tulisan ini bertujuan mengkaji kelembagaan mitigasi kekeringan di Kabupaten Grobogan, sebagai bahan penyusunan kebijakan mitigasi kekeringan. Pengumpulan data dilakukan dengan metode studi pustaka, wawancara terstruktur, dan diskusi kelompok terarah. Analisis data dilakukan secara kualitatif dengan bantuan matrik analisis isi kebijakan, matrik peran parapihak, serta matrik analisis kapabilitas lembaga. Hasil kajian menunjukkan bahwa : 1) Pemerintah Kabupaten Grobogan telah mengeluarkan enam peraturan terkait penanggulangan bencana secara umum serta strategi penyediaan air minum, namun belum ada aturan khusus mengenai mitigasi kekeringan; 2) belum ada data kerugian akibat kekeringan yang terjadi setiap tahun, serta data titik-titik potensi sumber air di Kabupaten Grobogan; 3) belum ada rencana induk untuk antisipasi dan mitigasi bencana kekeringan, dan 4) telah dibentuk Forum Tanggap Bencana dan Pokja AMPL (Air Minum Penyehatan Lingkungan), namun tidak secara khusus menangani kekeringan. Langkah-langkah yang perlu dilakukan untuk mitigasi kekeringan di Kabupaten Grobogan adalah : 1) Pembentukan Forum Mitigasi Kekeringan; 2) Penyusunan database informasi bencana kekeringan, termasuk identifikasi sumber air dan teknologi konservasi air yang aplikatif; 3) Penyusunan Rencana Induk Mitigasi Kekeringan; dan 4) Penyusunan dan penetapan aturan pemanfaatan air, aturan perlindungan dan pemanfaatan mata air, serta sistem mitigasi kekeringan.Kata kunci: kekeringan; kelembagaan; mitigasi; rencana induk
IDENTIFIKASI BAMBU DI SUB DAERAH ALIRAN SUNGAI KEDOME LOMBOK TIMUR DAN ALTERNATIF MANFAAT UNTUK KONSERVASI SEMPADAN SUNGAI (The identification of bamboo at Kedome Sub Watershed East Lombok and its alternatives conservation for the river buffer zones) Mega Mentari; Tri Mulyaningsih; Evy Aryanti
Jurnal Penelitian Pengelolaan Daerah Aliran Sungai (Journal of Watershed Management Research) Vol 2, No 2 (2018): Jurnal Penelitian Pengelolaan Daerah Aliran Sungai (Journal of Watershed Managem
Publisher : Center for Implementation of Standards for Environmental and Forestry Instruments Solo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jppdas.2018.2.2.111-122

Abstract

ABSTRACTMost bamboo has a tight sympodial rhizome root system that can be used for conservation of river border. Generally, bamboo in each watershed has a variation, such as in Tiupupus watershed North Lombok District, there were found 4 bamboo genera, 9 species, and 1 variety while in Meniting watershed, West Lombok District, there were found 6 genera of 8 species of bamboo. This study aims to determine species of bamboo and its distribution along buffer zones of the Kedome river in East Lombok District. Sampling method was conducted by exploring the bamboo in the buffer zone as long as 6.000 m, the width of the two paths on both sides of the river was 50 m each. Data were analyzed using description method. The results showed: there were 3 bamboo genera, 5 species and 1 variety e.g. Gigantochloa apus, Gigantochloa atter, Thyrsostachis siamensis, Bambusa maculata, Bambusa vulgaris, and Bambusa vulgaris var. vittata. Species of Gigantochloa atter and Bambusa vulgaris have tight sympodial rhizome roots, rounded and thick canopy. Both types of bamboo are recommended to be used as soil and water conservation plants in the watershed.Keywords: bamboo; Kedome River; Lombok ABSTRAKKebanyakan bambu mempunyai sistem perakaran rhizome simpodial rapat yang dapat digunakan untuk konservasi sempadan sungai. Pada umumnya di setiap Daerah Aliran Sungai (DAS), bambu mempunyai variasi yang berbeda-beda, seperti di DAS Tiupupus Kabupaten Lombok Utara ditemukan 4 marga bambu, 9 jenis, dan 1 varietas, sedangkan di DAS Meniting Kabupaten Lombok Barat ditemukan 6 marga dari 8 jenis bambu. Penelitian ini bertujuan untuk mengetahui jenis-jenis bambu dan persebaran bambu yang berada di sempadan Sungai Kedome Kabupaten Lombok Timur. Pengambilan sampel menggunakan metode jelajah yaitu dengan menjelajahi sempadan Sungai Kedome sepanjang 6.000 m, lebar kedua jalur di kiri kanan sungai masing-masing 50 m. Data dianalisis menggunakan metode deskripsi. Berdasarkan hasil penelitian ditemukan 3 marga bambu dengan 5 jenis dan 1 varietas, yaitu: Gigantochloa apus, Gigantochloa atter, Thyrsostachis siamensis, Bambusa maculata, Bambusa vulgaris, dan Bambusa vulgaris var. vittata. Jenis Gigantochloa atter dan Bambusa vulgaris mempunyai sistem perakaran rimpang yang sangat rapat, rumpun juga sangat rapat dan bentuk kanopi yang membulat. Kedua jenis bambu ini direkomendasikan untuk dijadikan tumbuhan konservasi tanah dan air di sempadan sungai.Kata kunci: bambu; Sungai Kedome; Lombok
PENGARUH PERSENTASE PENUTUPAN HUTAN TERHADAP DEBIT PUNCAK DI SUB DAERAH ALIRAN SUNGAI HUTAN ALAM KABUPATEN TANAH LAUT (The effect of forest coverage percentage on peak discharge in the natural forest sub watershed, Tanah Laut Regency) Esa Bagus Nugrahanto; Rahardyan Nugroho Adi; Agung Budi Supangat; Nunung Puji Nugroho
Jurnal Penelitian Pengelolaan Daerah Aliran Sungai (Journal of Watershed Management Research) Vol 2, No 2 (2018): Jurnal Penelitian Pengelolaan Daerah Aliran Sungai (Journal of Watershed Managem
Publisher : Center for Implementation of Standards for Environmental and Forestry Instruments Solo

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (591.286 KB) | DOI: 10.20886/jppdas.2018.2.2.123-136

Abstract

ABSTRACTThe percentage of forest coverage holds an important role in regulating water in watersheds. This paper studies the influence of forest coverage percentage on peak discharge in sub watersheds with various percentage of natural forest areas. The study took place in Bakar, Tanjung, Iwakan, and Langsat Sub Watersheds, Tanah Laut Regency, South Kalimantan Province in 2017. The percentage of natural forest varied from 9,7 to 98% of the the sub watershed areas. This research was conducted by direct measurement of rainfall and stream water levels that were converted into peak discharge. The peak discharges between sub watersheds were compared to the rainfall and the percentage of forest. The results showed that in general the percentage of natural forest coverage affect the peak discharge. The forest coverage showed a positive response in lowering the peak discharge when the rainfall was below 115 mm/day. Bakar and Tanjung Sub Watersheds that had low percentage of natural forest coverage had higher peak discharge than Langsat and Iwakan Sub Watersheds, which had higher percentage of forest coverage. The relationship between the percentages of natural forest coverage with peak discharge marked by the coefficient of determination value of 53.3%. Since the existence of forest is very important as the hydrological controller, forest conservation efforts and reforestation should be conducted in the upper sub watersheds.Keywords: peak discharge; natural forest coverage; rainfall; sub watershedsABSTRAKPersentase penutupan hutan memegang peran penting dalam mengatur tata air Daerah Aliran Sungai (DAS). Hutan dengan fungsi hidrologisnya berpengaruh terhadap debit sungai. Penelitian ini bertujuan untuk mempelajari pengaruh persentase penutupan hutan terhadap debit puncak di sub DAS hutan alam. Penelitian ini dilakukan pada tahun 2017 di Sub DAS Bakar, Sub DAS Tanjung, Sub DAS Iwakan, dan Sub DAS Langsat, Kabupaten Tanah Laut Provinsi Kalimantan Selatan. Persentase hutan alam bervariasi dari 9,7 sampai 98% dari uas sub DAS. Penelitian dilakukan dengan pengkuran langsung data curah hujan dan tinggi muka air (TMA) yang dikonversi menjadi debit puncak. Data debit puncak antar sub DAS dibandingkan menurut curah hujan dan persentase penutupan hutan alam. Hasil penelitian menunjukkan secara umum persentase penutupan hutan berpengaruh terhadap debit puncak. Penutupan hutan memberikan respon yang positif dalam menurunkan debit puncak ketika curah hujan dibawah 115 mm/hari. Sub DAS Bakar dan Tanjung yang memiliki persentase penutupan hutan alam yang rendah memiliki debit puncak yang lebih tinggi dibandingkan dengan Sub DAS Langsat dan Iwakan yang memiliki persentase penutupan hutan yang tinggi. Pengaruh persentase penutupan hutan alam terhadap debit puncak ditandai oleh koefisien determinasi sebesar 53,3%. Keberadaan hutan sangat penting sebagai pengatur hidrologi sehingga sangat penting untuk dilakukannya upaya konservasi dan penghijauan di hulu sub DAS yang diamati.Kata kunci: debit puncak; penutupan hutan alam; curah hujan; sub DAS
MITIGASI BANJIR STRUKTURAL DAN NON-STRUKTURAL UNTUK DAERAH ALIRAN SUNGAI RONTU DI KOTA BIMA (Structural and non-structural flood mitigation for Rontu Watershed in Bima City) Rizki Kirana Yuniartanti
Jurnal Penelitian Pengelolaan Daerah Aliran Sungai (Journal of Watershed Management Research) Vol 2, No 2 (2018): Jurnal Penelitian Pengelolaan Daerah Aliran Sungai (Journal of Watershed Managem
Publisher : Center for Implementation of Standards for Environmental and Forestry Instruments Solo

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1010.756 KB) | DOI: 10.20886/jppdas.2018.2.2.137-150

Abstract

ABSTRACTFlood is one of natural disasters that often occur in Indonesia. This disaster also occurred in Bima City on December 21, 2016, December 23, 2016, and January 2, 2017 with the affected area were Mpunda, Rasanae Timur, Asakota, Rasanae Barat, and Raba districts. The urban areas become the most affected areas, mainly in the residential areas that located more than 50 meters from the flood plains. The variations of flood heights ranged from 1-4 meters. In addition to the hydrometeorological factors, the flood in Bima was caused by several factors, such as: loss of riparian areas function which turned into settlements nowadays, siltation in the downstream areas, poor management of urban drainage systems, reduced vegetation cover in upstream, and narrowing of river bodies. With the increasing of hydro-meteorological disaster problems and challenges, recommendations of structural and non-structural infrastructure to reduce the risk of flood disaster are needed. Therefore, this research aims to provide recommendations of structural and non-structural as an effort to mitigate flood disaster in Bima City. Analytical methods used in this research were participatory mapping, flood hazards mapping and modeling, and qualitative description. Results showed that the management of Rontu watershed in controlling flood would be effective and efficient by combining the structural and non-structural development. Mapping and modeling the flood-affected areas can become a source in the riparian planning regulation to reduce the risk of flooding.Keywords: flood; structural; and non structural ABSTRAKBanjir merupakan salah satu bencana alam yang sering terjadi di Indonesia. Bencana ini juga terjadi di Kota Bima pada tanggal 21 Desember 2016, 23 Desember 2016, dan 2 Januari 2017. Wilayah terdampak di Kota Bima adalah kecamatan Mpunda, Rasanae Timur, Asakota, Rasanae Barat, dan Raba. Kawasan perkotaan menjadi kawasan yang paling terdampak, terutama kawasan permukiman yang berjarak >50 meter dari sempadan sungai. Genangan banjir dapat mencapai ketinggian yang bervariasi, yaitu berkisar 1-4 meter. Selain faktor hidrometeorologi, banjir di Bima disebabkan oleh berbagai faktor; diantaranya hilangnya fungsi sempadan sungai yang saat ini banyak berubah menjadi kawasan permukiman, pendangkalan pada bagian hilir sungai, sistem drainase perkotaan yang buruk, berkurangnya tutupan vegetasi pada bagian hulu, serta penyempitan badan sungai. Dengan meningkatnya permasalahan dan tantangan bencana hidrometeorologi tersebut, maka diperlukan rekomendasi struktural dan non struktural untuk mengurangi risiko bencana banjir. Oleh karena itu, penelitian ini bertujuan untuk memberikan arahan rekomendasi struktural dan non struktural sebagai upaya mitigasi bencana banjir Kota Bima. Metode analisis yang digunakan dalam penelitian ini adalah pemetaan partisipatif, pemetaan dan pemodelan bahaya banjir, dan juga deskriptif kualitatif. Hasil penelitian menunjukkan upaya pengelolaan DAS Rontu untuk pengendalian banjir dapat efektif dan efisien jika mengkolaborasikan antara pembangunan infrastruktur struktural dan pembangunan nonstruktural. Pemetaan kawasan terdampak banjir dan pemodelan banjir dapat menjadi acuan dalam penataan ruang di kawasan sempadan sungai untuk dapat mengurangi risiko banjir.Kata kunci: banjir; struktural; dan non structural

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