Email this article DINAMIKA BENTUKAN LAHAN FLUVIAL AKIBAT SEDIMENTASI DI SUNGAI GRINDULU, SEGMEN ARJOSARI-PACITAN (Fluvial landform dynamics caused by sedimentation of Grindulu River, Arjosari-Pacitan Segment)
Abstract
ABSTRACT
Landforms experience dynamics during the geomorphological process. The fluvial process occurs due to the flow of water from erosion, erosion transportation, and sedimentation activities. Sedimentation material is resulted from erosion transported through the river. Later the deposited erosion will produce landform variations. Therefore, information of landform dynamic is important in controlling runoff and floods. The purpose of this study was to identify and determine the dynamics of the fluvial landform in Grindulu River, Arjosari-Pacitan Segment. The method used is combination of desk analysis and field surveys. The desk analysis is conducted to identify the types of landforms through visual interpretation of SPOT-7 Imagery, while field surveys are to determine sample units using purposive sampling. Based on landform analysis in the Arjosari-Pacitan Segment, there were five fluvial landforms processes due to sedimentation namely point bar, channel bar, flood plain, meandering, and natural levee. The dynamics that occur are dominated by the aggradation process, namely the addition of flood plain landform area of 0.872 ha (0.216%), channel bar of 0.091 ha (0.019%), and natural levee of 0.014 ha (0.002%). The identification of landforms can be used as a basis in spatial planning to optimize water system in watershed.
Keywords: landform; fluvial; sedimentation; Grindulu Watershed
ABSTRAK
Bentuklahan mengalami dinamika selama terjadinya proses geomorfologi. Proses fluvial terjadi akibat aliran air dari aktivitas erosi, transportasi, dan sedimentasi. Material sedimentasi berasal dari hasil erosi yang terangkut melalui sungai yang kemudian diendapkan yang nantinya akan menghasilkan variasi bentuklahan. Dengan demikian informasi mengenai dinamika bentuklahan sangat penting untuk mengendalikan aliran permukaan dan banjir. Tujuan penelitian ini adalah untuk mengidentifikasi dan mengetahui dinamika bentuklahan hasil proses fluvial di Sungai Grindulu, Segmen Arjosari-Pacitan. Metode yang digunakan yaitu kombinasi antara desk analysis (dilakukan untuk mengidentifikasi jenis-jenis bentuklahan melalui interpretasi citra SPOT-7) dan survey lapangan (menentukan unit sampel secara purposive sampling). Hasil analisis bentuk lahan pada Segmen Arjosari-Pacitan diperoleh lima bentuklahan proses fluvial akibat sedimentasi yaitu point bar, channel bar, flood plain, meandering, dan natural levee. Dinamika yang terjadi didominasi oleh proses agradasi yaitu penambahan luasan bentuklahan flood plain sebesar 0,872 ha (0,216%), channel bar sebesar 0,091 ha (0,019%), dan natural levee sebesar 0,014 ha (0,002%). Identifikasi bentuklahan ini dapat dijadikan dasar dalam perencanaan tata ruang untuk mengoptimalkan tata air dalam DAS.
Kata kunci: bentuklahan; fluvial; sedimentasi; DAS GrinduluKeywords
Full Text:
PDF (Bahasa Indonesia)References
Abdullah, C. I., & Purwanto, N. A. M. H. S. (2003). Analisis sinamik tegasan purba pada satuan batuan paleogen – neogen di daerah Pacitan dan sekitarnya, Provinsi Jawa Timur ditinjau dari studi sesar minor dan kekar tektonik dari titik pandang geodinamik , tatanan tektonik pulau jawa tidak dapat. PROC. ITB Sains Tek, 35(2), 111–127.
Ahmed, A., & Fawzi, A. (2011). Meandering and bank erosion of the River Nile and its environmental impact on the area between Sohag. Arab J Geosci, 4(1–11). https://doi.org/10.1007/s12517-009-0048-y
Balasubramanian, A. (2016). Fluvial landforms. https://doi.org/10.13140/RG.2.2.17116.39044
Banuwa, I. . (2013). Erosi. Jakarta: Prenadamedia Group.
BNPB. (2019). Data kejadian banjir. https://dibi.bnpb.cloud. Diakses pada 14 Maret 2019.
BPDAS Solo. (2011). Rencana tindak rehabilitasi hutan dan lahan (RHL) dalam rangka pengendalian banjir dan tanah longsor DAS Solo tengah-hilir. Direktorat Perencanaan dan Evaluasi Pengelolaan DAS Direktorat Jenderal Bina Pengelolaan DAS dan Perhutanan Sosial.
BPDAS Solo. (2012). Penyusunan rencana pengelolaan Daerah Aliran Sungai SWP Grindulu terpadu. Surakarta: Balai Pengelolaan Daerah Aliran Sungai Solo. Direktorat Jenderal Rehabilitasi Lahan dan Perhutanan Sosial.
Charlton, R. (2008). Fundamentals of fluvial geomorphology. London: Routledge.
Coffman, D. K., Malstaff, G., & Heitmuller, F. T. (2011). Characterization of geomorphic units in the Alluvial Valleys and Channels of Gulf Coastal Plain Rivers in Texas , with examples from the Brazos , Sabine , and Trinity Rivers , 2010. Denver.
Dibyosaputro, S. (2016). Karakteristik point bar di Sungai Bogowonto, Kabupaten Purworejo Provinsi Jawa Tengah. Geomedia, 14, 1–12.
Hidup, M. N. L. (2007). Peraturan Menteri Negara Lingkungan Hidup Nomor 01 Tahun 2007 tentang Pedoman Pengkajian Teknis untuk Menetapkan Kelas Air.
Hosu, M., & Sabo, H. (2012). The morphodynamics of the some ú river channel , Northwestern Romania , as response to natural influences, 1(January), 210–215. https://doi.org/10.1016/j.apcbee.2012.03.034
Hudson, P. F. (2017). Fluvial depositional processes and landforms. https://doi.org/10.1002/9781118786352.wbieg087
Huggett, R. J. (2007). Fundamentals of geomorphology. Canada: Routledge.
Hyndman, D., & Hyndman, D. (2010). Natural hazard and disaster. Brooks Cole.
Ibisate, A., Ollero, A., & Elena, D. (2011). Influence of catchment processes on fluvial morphology and river habitats In fl uence of catchment processes on fl uvial morphology and river habitats. Limnetica, 30(2), 169–182.
Kasvi, E., Laamanen, L., Lotsari, E., & Alho, P. (2017). Flow patterns and morphological changes in a sandy meander bend during a flood — spatially and temporally intensive ADCP measurement approach. water, 9(106), 6–11. https://doi.org/10.3390/w9020106
KPPIP. (2019). Proyek prioritas nasional. retrieved from
https://kppip.go.id/proyek-strategis-nasional/p-proyek-bendungan-dan-jaringan-irigasi/bendungan-tukul/
Legleiter, C. J., Harrison, L. R., & Dunne, T. (2011). Effect of point bar development on the local force balance governing flow in a simple , meandering gravel bed river, 116, 1–29. https://doi.org/10.1029/2010JF001838
Linsley, R. K., Kohler, M. A., & Paulhus, J. . (1996). Hidrologi untuk insinyur. Jakarta: Erlangga.
Ningrum, M. (2014). Kajian perubahan penggunaan lahan DAS Bogowonto terhadap rencana tata ruang wilayah dalam rangka pengendalian sedimentasi. Universitas Gadjah Mada.
Paryono, Damar A., Susilo S.B., Dahuri R., Suseno H.,. Sedimentasi di delta Sungai Citarum, Kecamatan Muara Gembong, Kabupaten Bekasi. https://doi.org/10.20886/jppdas.2017.1.1.15-26
Pemerintah Kabupaten Pacitan. (2010). Peraturan Daerah Kabupaten Pacitan Nomor 3 Tahun 2010 tentang Rencana Tata Ruang Wilayah Kabupaten Pacitan.
Prioritas, K. P. P. I. (n.d.). Proyek prioritas nasional. retrieved from https://kppip.go.id/proyek-strategis-nasional/p-proyek-bendungan-dan-jaringan-irigasi/bendungan-tukul/
Putri, A. P., & Terunajaya. (2012). Pengaruh perubahan pola tata guna lahan terhadap sedimentasi di hulu Sungai Ular. Tekhnil Sipil USU, 1(2).
Raharjo, P. D. (2013). Penggunaan data penginderaan jauh dalam analisis bentukan lahan asal proses fluvial di wilayah Karangsambung. Jurnal Geografi, 7(2), 167–174. https://doi.org/DOI: https://doi.org/10.15294/jg.v7i2.85
River, T., & Das, S. S. (2016). Vertical sequences of lithofacies in point bar and natural levee deposits ,. International Journal of Environmental Sciences, 6(5), 746–757. https://doi.org/10.6088/ijes.6070
Smith, N. D., & Pérez-arlucea, M. (2008). Natural levee deposition during the 2005 flood of the Saskatchewan River geomorphology natural levee deposition during the 2005 flood of the Saskatchewan River. Geomorphology, 101(2008), 583–594. https://doi.org/10.1016/j.geomorph.2008.02.009
Sutanto. (1994). Penginderaan jauh jilid II. Yogyakarta,: Gadjah Mada University Press.
Tabarestani, M. K., & Zarrati, A. . (2015). Sediment transport during flood event : a review. International Journal Environmental Science Technology, 12(424), 775–788. https://doi.org/10.1007/s13762-014-0689-6
Tundu, C., Tumbare, M. J., & Onema, J. K. (2018). Sedimentation and its impacts / effects on river system and reservoir water quality : case study of Mazowe Catchment , Zimbabwe. International Association of Hydrological Sciences., 377, 57–66. https://doi.org///doi.org/10.5194/piahs-377-57-2018
Verstappen, H. (1983). Applied geomorphology. Amsterdam: Elsevier.
Wang, B., & Xu, Y. J. (2015). Sediment trapping by emerged channel bars in the lowermost Mississippi River during a major flood. Water, 7, 6079–6096. https://doi.org/10.3390/w7116079
Wijayanti, D. A., & Gunawan, T. (2017). Pemanfaatan citra penginderaan jauh untuk ekstraksi parameter laju erosi-sedimentasi di daerah aliran sungai. Universitas Gadjah Mada.
Wintenberger, C. L., Rodrigues, S., Claude, N., Jugé, P., Bréhéret, J., & Villar, M. (2015). Geomorphology dynamics of nonmigrating mid-channel bar and superimposed dunes in a sandy-gravelly river ( Loire River , France ). Geomorphology, 248, 185–204.
https://doi.org/10.1016/j.geomorph.2015.07.032
DOI: https://doi.org/10.20886/jppdas.2019.3.1.13-26
Refbacks
- There are currently no refbacks.
Copyright (c) 2019 Jurnal Penelitian Pengelolaan Daerah Aliran Sungai (Journal of Watershed Management Research)
This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.
Published by:
Cooperation the Center for Implementation of Standards for Environmental and Forestry Instruments Solo (BPSILHK Solo) with the Indonesian Soil and Water Conservation Society (MKTI)
eISSN : 2579-5511, pISSN : 2579-6097
Secretary:
The Center for Implementation of Standards for Environmental and Forestry Instruments Solo (BPSILHK Solo)
Jl. Jend A. Yani-Pabelan, Kartasura Po.BOX 295 Surakarta 57102
Phone.(0271) 716709 ; Fax(0271) 716959;
Email : sekred.jppdas@gmail.com
Website : http://dassolo.litbang.menlhk.go.id/
Copyright : Jurnal Penelitian Pengelolaan Daerah Aliran Sungai (Journal of Watershed Management Research)