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Kajian Kebutuhan Air dan Produktivitas Air Padi Sawah dengan Sistem Pemberian Air Secara SRI dan Konvensional Menggunakan Irigasi Pipa Najla Anwar Fuadi; Muhammad Yanuar J. Purwanto; Suria Darma Tarigan
Jurnal Irigasi Vol 11, No 1 (2016): Jurnal Irigasi
Publisher : Balai Teknik Irigasi

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (923.001 KB) | DOI: 10.31028/ji.v11.i1.23-32

Abstract

Limited water availability for agricultural land may cause decrease in rice production. The increase of crop production currently become a top priority in agricultural development. Productivity can be assessed through a subsystem of soil, water, and land patterns to use in certain periods. The applications of pipe irrigation with the combination of System of Rice Intensification (SRI) was capable to use water efficiently. Therefore, research concerning the calculation of water productivity of paddy rice which uses input pipe irrigation with conventional water supply system and SRI system is important to be conducted. The research steps were direct observation in the field, measurement of evapotranspiration, percolation, net field requirements and calculation of water productivity. The results showed that the production of rice was higher in water delivery system of SRI. Water productivity of paddy with SRI system also higher, where the water needs with a combination of pipe irrigation and water delivery systems in SRI were the best treatment. Water productivity in conventional rice fields was 0.82 kg/m3 and SRI 1.12 kg/m3. The combination of pipe irrigation and SRI systems showed high water productivity and efficient use of water.
Efisiensi Sistem Irigasi Pipa untuk Mengidentifikasi Tingkat Kelayakan Pemberian Air dalam Pengelolaan Air Irigasi Afri Fajar; Muhammad Yanuar J. Purwanto; Suria Darma Tarigan
Jurnal Irigasi Vol 11, No 1 (2016): Jurnal Irigasi
Publisher : Balai Teknik Irigasi

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (894.921 KB) | DOI: 10.31028/ji.v11.i1.33-42

Abstract

Irrigation water loss that commonly occurs in an agricultural area are runoff and deep percolation. Pipe irrigation has reached 98% efficiency because it can control the use of water as needed and has no seepage for water supply. Distance of paddy field’s inlet should also be a considered factor aside from irrigation technology. Rice field’s inlet distance affect the water distribution in a fields plot as they relate to application efficiency (Ea) and the efficiency of water distribution (Ed). The method used in this research was descriptive method that collect primary data and secondary data. The experiment plots were installed with irrigation pipes. The results showed Ed values above 90% in conventional and System of Rice Intensification (SRI). This explains the distribution of water in pipe irrigation evenly throughout the planting area. Ea value on experimental plots ranged between 76% - 98%. This is because of the occurrence of deep percolation and surface flow at the conventional fields, which causes decrease in efficiency. The paddy field inlets distance simulation results showed that good Ea (≥ 90%) obtained at a distance of 30 m with SRI water application gave water saving up to 10,25%. The feasibility of the water application on the value of Ea was obtained from the level of application of irrigation water’s pattern to conventional paddy at vegetative phase is critical at a distance of 170 m, while the generative phase is critical at a distance of 75 m and very critical at 178 m. SRI paddy field gives the value of feasibility of providing water at vegetative phase becomes near critical at a distance of 170 m, while the generative phase becomes critical at a distance of 150 m.
Infiltrasi dan Aliran Permukaan pada Agroforestri dan Kelapa Sawit Austin Ullyta; Suria Darma Tarigan; Enni Dwi Wahjunie
Jurnal Ilmu Pertanian Indonesia Vol. 27 No. 3 (2022): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18343/jipi.27.3.359

Abstract

Forest to oil palm plantations conversion has changed soil's physical properties significantly. It caused significant changes in the hydrological cycle and affects the water resources around the research site. One of the strategies that could minimize the negative impact of monoculture oil palm plantations is better plantation management by implementing a mixed cropping system (agroforestry). This study aims to analyze the infiltration, surface runoff, and surface runoff coefficient in agroforestry and monoculture oil palm. This observation was conducted in the oil palm plantation area of PT Humusindo Makmur Sejati, Bungku Village, Bajubang District, Batanghari Regency. The infiltration rate was calculated according to the Horton method, and the amount of runoff in agroforestry and oil palm monoculture used the soil conservation service-curve number method. The results showed differences in infiltration, surface runoff, and runoff coefficients between the agroforestry land and the monoculture oil palm. The highest infiltration is in A48, which is 42,00 cm/hour in the dry season and 18,00 cm/hour in the rainy season. The lowest runoff is in A23, which is 70.14 mm with a runoff coefficient of 0.04. The highest runoff occurred in S48 of 339.88 mm, with a runoff coefficient of 0.19. The differences in infiltration, surface runoff, and runoff coefficient in this study are affected by the vegetation density and the amount of litter. Keywords: agroforestry, infiltration, oil palm, runoff coefficients, surface runoff
Characteristics and factors affecting surface and shallow landslides in West Java, Indonesia Yulia Amirul Fata; Hendrayanto Hendrayanto; Budi Kuncahyo; Erizal Erizal; Suria Darma Tarigan
Journal of Degraded and Mining Lands Management Vol 10, No 1 (2022)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15243/jdmlm.2022.101.3849

Abstract

Bogor, Cianjur, and Sukabumi areas of West Java Province, Indonesia, are vulnerable landslide areas. This study analyzes the landslide characteristic and the factors affecting landslides. The analysis was carried out on 148 landslides from 415 of 2018-2020 landslides, which were selected purposively by considering the heterogeneity of soil, geology, slope classes, land use type, and accessibility of landslide locations. Landslide characteristics and factors affecting landslides were analyzed using frequency analysis and binary logistic regression. The results showed that the most dominant characteristics of surface and shallow landslides were the landslides characterized by slopes >45%, Quaternary geological period, Andisol soil type, agriculture land use type, the occurrence of rain, and absence of earthquake. The dominant factors affecting surface and shallow landslides are human activities in land use, soil properties, steep-very steep slopes, Inceptisol and Entisol soil orders, young rocks (Quaternary geological period), rainfall events, and high earthquake magnitude.
Development of a land stability index for land damage assessment: the case of a nickel mine, North Konawe, Indonesia Baba Barus; Suria Darma Tarigan; Reni Kusumo Tejo; Yuri Ardhya Stanny
Journal of Degraded and Mining Lands Management Vol 9, No 4 (2022)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15243/jdmlm.2022.094.3695

Abstract

Assessment of land damage has been included in several Indonesian government policies, but it tends to have zero dimensions or only one point in the year. This study tried to propose an inter-time assessment of land damage with a land stability index by including the development of knowledge and technology at nickel mining sites in the easternmost part of North Konawe Regency. Orthophoto and Digital Elevation Model (DEM) images from drones in 2020 were taken in a field survey and used as primary data. While the SPOT 5 Imagery in 2014 and National DEM were collected as secondary data. The developed method combining slope, soil, TRI (Terrain Ruggedness Index), and land cover factor has been considered moderately accurate. Applying the method between different periods has produced a temporal land stability index where a positive value means more unstable, zero means unchanged, and a negative value means more stable. The results showed that after six years, the largest area due to nickel mining in the area has not changed much or had zero value. This is because the area tends to remain a natural forest. The more stable area is located in the southern part of the study site. However, the increasingly unstable area is located in the northern part of the study site. If no reclamation action is taken, the potential for further damage will occur.
Vegetation dynamics of Sangkub watershed in North Sulawesi Province indicated by NDVI of Landsat data Veybi Djoharam; Widiatmaka Widiatmaka; Marimin Marimin; Dyah Retno Panuju; Suria Darma Tarigan
Journal of Degraded and Mining Lands Management Vol 10, No 1 (2022)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15243/jdmlm.2022.101.3991

Abstract

Vegetation can be an important indicator of ecosystem change, the influence of anthropogenic and non-anthropogenic factors. Therefore, it is important to study the dynamics of vegetation changes. One technique that can be used for vegetation analysis is the Normalized Difference Vegetation Index (NDVI). NDVI is an indicator of the active biomass that helps distinguish vegetation from other land cover and can provide information about changes in Spatio-temporal vegetation dynamics, thus allowing for assessment of the ecological conditions. This study aimed to investigate the dynamic of vegetation in the Sangkub watershed area located in North Sulawesi Province. This analysis used geospatial technology with the NDVI method, utilizing Landsat 5 and Landsat 8 satellite imagery data in three periods the year 2000, 2015, and 2020. The results showed that vegetation cover of the Sangkub watershed decreased substantially, whereas the non-vegetated area increased gradually over time.
Efektivitas Tumbuhan Air dan Media Penyaring Menurunkan Kandungan Bahan Pencemar Limbah Cair Buangan Akhir Pabrik Kelapa Sawit Syafrani Syafrani; Santun R.P Sitorus; M. Sri Saeni; Suria Darma Tarigan
Jurnal Perikanan dan Kelautan Vol 11, No 2 (2006)
Publisher : Faculty of Fisheries and Marine, Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jpk.11.2.77-84

Abstract

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Analisis Ketersediaan Dan Kebutuhan Air Di Das Cisangkuy Mariana Lusiana Resubun; Enni Dwi Wahyunie; Suria Darma Tarigan
Musamus AE Featuring Journal Vol 2 No 1 (2019): MAEF-J Oktober 2019
Publisher : Faculty of Agriculture, Musamus University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35724/maef-j.v2i1.2516

Abstract

Flooding in the rainy season and a drought that occurred in the dry season shows the distribution discharge river that is not evenly throughout the year. The event of floods and droughts happened in Cisangkuy watershed will affect the availability of water in fulfilling 6 important sectors of supporting human life, which is: domestic demand for water, agricultural land for farming, freshwater pounds, farm, industry and maintenance of rivers. Analysis of supply and demand for water in this research aims to review the availability and water demand in Cisangkuy watershed , and also water conservation effort with integrated water management. Methods used in this research is a observation method. The result showed there are scarce water ( deficit) in 2005, 2010 and 2015, each of 76 962 026 m3year-1 111 189 540 m3year-1 and 170 215 063 m3year-1.
Land capability evaluation for land use recommendation in Lawo watershed Mahendra Harjianto; Naik Sinukaban; Suria Darma Tarigan; Oteng Haridjaja
Jurnal Penelitian Kehutanan Wallacea Vol. 5 No. 1 (2016)
Publisher : Foresty Faculty of Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1115.137 KB) | DOI: 10.18330/jwallacea.2016.vol5iss1pp1-11

Abstract

The changes of forest uses into agricultural land is a serious problem in Lawo watershed, South Sulawesi. Agricultural practices without implementing soil conservation and adequate agro-technology has caused high level of soil erosion and low land productivity. Management in Lawo watershed must be done with integrated soil and water conservation in order to increase agricultural production. This effort can be done with land capability evaluation. The purpose of this study is to evaluate the land capability of Lawo watershed using land capability category for data analysis. The results showed that Lawo watershed is dominated by land capability of class III with erosion (middle) as the dominant limiting factor which covers about 17,476.42 ha (49.68%). In addition, the class of land capability is followed by class IV with the slope (moderately steep) as the limiting factor and erodibility of soil (middle) covering about 10,059.8 ha (28.6%), land capability of class VI with slope (Steep) as the limiting factor with 7,638.32 ha (21.72%) coverage area. Land with class III can be recommended for dryland farming with adequate application of agro-technology, and water and soil conservation. While class IV and VI are not recommended for agricultural activities but for private forest or plantation forest.
Kajian Perubahan Tutupan Lahan Terhadap Karakteristik Hidrologis di Hutan Penelitian Gunung Dahu (Study of Land Cover Change on Hydrological Characteristics in Gunung Dahu Research Forest) Nevky Emiraj Saputra; Cahyo Wibowo; Suria Darma Tarigan; Yunita Lisnawati
Jurnal Penelitian Hutan Tanaman Vol 20, No 1 (2023): Jurnal Penelitian Hutan Tanaman
Publisher : Pusat Penelitian dan Pengembangan Hutan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jpht.2023.20.1.37-50

Abstract

AbstractThe Gunung Dahu Research Forest Area was originally degraded land that was converted into forested land through a revegetation program with dipterocarp tree species in 1997. Intensive revegetation activities within the area have increased forest cover and increased water infiltration capacity. This study aims to determine the effect of changes in land cover and stand characteristics on hydrological characteristics in the Gunung Dahu Research Forest. The results showed that revegetation activities had increased forested land cover to 113.8%. This increase in forested area is supported by an increase in standing stock volume up to 276 m3/ha. This increase plays an important role, especially in increasing infiltration capacity due to the deeper tree roots. Changes in land cover were influenced by hydrological conditions with an increase in lateral flow of 127%, baseflow of 483.8%, and a decrease in surface runoff of 5.8%. Forested land cover is important so that water sources are maintained and can be sustainably utilized by the community.Key words: Hydrological characteristics, land cover, stands, soil water AbstrakKawasan Hutan Penelitian Gunung Dahu awalnya merupakan lahan terdegradasi yang diubah menjadi lahan berhutan melalui program revegatasi dengan jenis pohon dipterokarpa pada tahun 1997. Kegiatan revegetasi yang intensif di dalam kawasan telah meningkatkan tutupan hutan dan meningkatkan kapasitas infiltrasi air. Penelitian ini bertujuan untuk mengetahui pengaruh perubahan tutupan lahan dan karakteristik tegakan terhadap karakteristik hidrologi di Hutan Penelitian Gunung Dahu. Analisis perubahan tutupan lahan dilakukan menggunakan data citra satelit Landsat tahun 1997, 2007 dan 2020. Citra ini kemudian dianalisis menggunakan metode klasifikasi terbimbing dan penentuan karakteristik hidrologi menggunakan Soil and Water Assessment Tools. Hasil penelitian menunjukkan bahwa kegiatan revegetasi telah meningkatkan tutupan lahan berhutan menjadi 113,8%. Peningkatan luas berhutan ini didukung dengan peningkatan volume standing stock sampai 276 m3/ha. Peningkatan tersebut telah meningkatkan kapasitas infiltrasi karena semakin dalamnya perakaran pohon. Perubahan tutupan lahan memengaruhi kondisi hidrologi, yaitu peningkatan aliran lateral 127%, aliran dasar 483,8%, dan penurunan limpasan permukaan 5,8%. Tutupan lahan berhutan menjadi penting agar sumber air tetap terjaga dan dapat dimanfaatkan oleh masyarakat secara lestari.Kata kunci: Karakteristik hidrologis, tutupan lahan, tegakan, soil water
Co-Authors . Asisah . Hikmatullah . HIKMATULLAH Afri Fajar Agus Setiyono Agus Wahyudi AH. Maftuh Hafidh Zuhdi Ai Dariah Alim, Nurmaranti Andria Harfani Qalbi Aries Suharso Ario Damar Asisah, . Asyhari, Adibtya Atang Sutandi Austin Ullyta Baba Barus Bambang Dwi Dasanto Bambang Hendro Trisasongko Bandung Sahari Bejo Slamet Boedi Tjahjono Budi Kartiwa Budi Kuncahyo Budi Nugroho Bunasor Sanim Cahyo Wibowo Darda Effendi Dede Sulaeman Dede Sulaeman, Dede Desi Nadalia Despry Nur Annisa Ahmad, Despry Nur Annisa Dodik Ridho Nurrochmat Dudung Darusman Dwi P T Baskoro Dwi Putro Tejo Baskoro Dyah Retno Panuju Enni Dwi Wahjunie Enni Dwi Wahyunie Erizal , ERNA SURYANI Erwin Hermawan Evy Damayanthi Fadhlullah Ramadhani Fajar Nugraha Faqihna Pidin Fata, Yulia Amirul Fatoni, Arif Fitriani Hayati Gangga, Adi Gunadi Firdaus Haki Yusdinar Hari Agung Haris Syahbuddin Harisson, Rhett D. Hasim Hefni Effendi Hendrayanto . Hengky Wijaya Hery Widijanto Hidayat Pawitan Hidayat Pawitan Hidayat Pawitan Hidayat Pawitan Hidayat Pawitan I Nengah Surati Jaya Idqan Fahmi Iin Ichwandi Imas Sukaesih Sitanggang IPB, DGB Irdika Mansur Irmadi Nahib Irwan Irwan Ishak Yassir ISKANDAR ZULKARNAEN SIREGAR Jamhari Jamhari Jepri, Kristoporus kartika triasary Kerstin Wiegand Kiki Rishki Ananda Kukuh Murtilaksono Kukuh Murtilaksono Kukuh Murtilaksono La Baco S Laksono Trisnantoro Lala M Kolopaking Latief Mahir Rachman Lutfy Abdulah M Agus Setiadi M. Sri Saeni M. Yanuar J. Purwanto Ma'mun Sarma Mahardika, Rabbirl Yarham Mahendra Harjianto Mahendra Harjianto Mariana Lusia Resubun Mariana Lusiana Resubun Marimin , Marisa Dwi Putri Meilasari, Nabilla Muhammad Buce Saleh Muhammad Yanuar J. Purwanto Nahrowi Naik Sinukaban Naik Sinukaban Naik Sinukaban Naik Sinukaban Naik Sinukaban Naik Sinukaban Najla Anwar Fuadi Naro Pandapotan Pasaribu Nevky Emiraj Saputra Nicko Widiatmoko Novia Mustikasari Nurdiyanto Agung Prasetya Nurlaila Mubarokah Nurmaranti Alim Oktariza, Wawan Omo Rusdiana Oteng Haridjaja Oteng Haridjaja Oteng Haridjaja Patri, Syiskhaeka Prasetya, Nurdiyanto Agung Pungkas Syahadat Purwanto, Yanuar Jarwadi Purwiyatno Hariyadi Qalbi, Andria Harfani Ravelle, Adzan Pandu Reni Kusumo Tejo Reyna Prachmayandini Reza Hanjaya Rikky Mulyawan Rima Purnamayani Rudolf Kristian Tukayo Saiful Akhyar Lubis Sakti, Harry Hardian Santikayasa, I Putu Santun R.P Sitorus Santun R.P. Sitorus Sarif Robo Selamet Kusdaryanto Silalahi, Mangarah Sri Purwaningsih, Sri Sudradjat Sudradjat Sudradjat Sumiati Sunarti Sunarti Sunarti Sunarti Suprihatin Suprihatin Surya Cipta Ramadhan Kete Suryanto Suryanto Syafrani Syafrani Takeshi Katsumi Tania June Trihono Kadri Tukayo, Rudolf Kristian Ulfah Juniarti Siregar Ulfah Sarach Sheftiana Untung Sudadi Veybi Djoharam Vinni Lovita Widiatmaka Widiatmaka Widiatmaka Widya Ulfah Utami Wiwin Ambarwulam Yandra Arkeman Yayat Hidayat Yudha Kristanto Yulia Amirul Fata Yunita Lisnawati Yuri Ardhya Stanny Yusdinar, Haki Yustika, Rahmah Dewi Yusuf, Sri Malahayati